CN101391902A - Foaming concrete made by waste and old concrete and production method thereof and use - Google Patents
Foaming concrete made by waste and old concrete and production method thereof and use Download PDFInfo
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- CN101391902A CN101391902A CNA2008101758887A CN200810175888A CN101391902A CN 101391902 A CN101391902 A CN 101391902A CN A2008101758887 A CNA2008101758887 A CN A2008101758887A CN 200810175888 A CN200810175888 A CN 200810175888A CN 101391902 A CN101391902 A CN 101391902A
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- 239000002699 waste material Substances 0.000 title claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000005187 foaming Methods 0.000 title abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 76
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000006260 foam Substances 0.000 claims abstract description 45
- 239000004088 foaming agent Substances 0.000 claims abstract description 23
- 239000010881 fly ash Substances 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 11
- 238000004321 preservation Methods 0.000 claims abstract description 4
- 239000011381 foam concrete Substances 0.000 claims description 79
- 239000003795 chemical substances by application Substances 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 26
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- 230000015572 biosynthetic process Effects 0.000 claims description 13
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
- C04B18/167—Recycled materials, i.e. waste materials reused in the production of the same materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00103—Self-compacting mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses light foaming concrete made by waste concrete, and the production method and application of the foaming concrete. The foaming concrete is formed by the mixing of regenerated foaming concrete aggregate formed after the smashing and screening of the waste concrete, jellous slurry formed by adding concrete, fly ash and water, and foam generated by a foaming agent. After on-spot injection, pouring or mould pouring, the foaming concrete can be used in a plurality of aspects in municipal infrastructure construction such as weak subgrade processing, high filling subgrade, road-widening subgrade, temporary subgrade, various underground pipeline foundation, narrow slot and small clearance space filling, road landslide emergency backfilling, building heat preservation, sound insulation walls and the like. The adoption of the waste concrete for making the foaming concrete has the advantages of utilizing the waste, being environment-friendly, saving energy and having low cost, and the like, and the produced foaming concrete has a plurality of good performances such as light weight, no lateral confinement compression resistance, self-compaction and vibro-free property, and the like.
Description
Technical field
The present invention relates to a kind of foamed concrete, specifically, the present invention relates to a kind of foamed concrete and production method and purposes of utilizing building waste to make.
Background technology
Produce a large amount of waste and old concretes in construction project construction, maintenance or the demolishing process; In addition, utilize concrete construction and produce in the building slab process to form a large amount of waste product, substandard products and defective material, also produce a large amount of waste and old concretes, the processing of these waste and old concretes has become a urgent problem.Traditional way is abandoned these waste and old concretes or landfill as rubbish, and this is undoubtedly a kind of waste and to the destruction of land resources.Also have a kind of treatment process at present, soon after the fragmentation of waste concrete block process, cleaning, the classification, form Aggregate of recycled concrete according to certain mixed.But the recovery of Aggregate of recycled concrete and utilization remain the problem that faces in building waste processing and the resource utilization process.In addition, because natural resource are tending towards exhausted, utilize traditional sand, stone, cement etc. also more and more higher as the cost of raw material production foamed concrete.
Summary of the invention
Handle problems in order to solve building waste, especially waste and old concrete is handled problems, and the invention provides a kind of foamed concrete of being made by waste and old concrete.Utilize waste and old concrete to produce foamed concrete and can make solid waste resource utilization, minimizing, harmless treatment, and have sharp useless, environmental protection, energy-conservation, advantages such as cost is low, recyclable regenerative, can produce and have multiple superperformance and broad-spectrum foamed concrete.
The waste and old concrete process that produces in construction project construction, maintenance, dismounting or the concrete member making processes is broken, through cleaning, mix according to a certain percentage after the screening in case of necessity, promptly form Aggregate of recycled concrete.In the Aggregate of recycled concrete, contain coarse aggregate, fine aggregate and powder and other compositions.Aggregate of recycled concrete can some or all of alternative natural aggregate, and regenerated coarse aggregate wherein and recycled fine aggregate can some or all of alternative rubble and sands.
The foamed concrete of being made by waste and old concrete of the present invention by forming after gelling slurry and the foams mix, contains waste and old concrete through Aggregate of recycled concrete, cement and water broken, that the screening back forms in the described gelling slurry.
Aggregate of recycled concrete, cement and water are mixed formation gelling slurry according to a certain percentage, and the foams mix with described gelling slurry and whipping agent generation forms foam slurry, is foamed concrete of the present invention after foam slurry is solidified.
The light foaming concrete that can produce different intensity grades and density by ratio between particle size, Aggregate of recycled concrete and the cement of adjusting Aggregate of recycled concrete and frothing percentage.
Can also contain sand, rubble, white lime or flyash in the described gelling slurry.In its raw material, add sand or rubble, in fact make Aggregate of recycled concrete partly substitute sand or rubble; In the gelling slurry, add unslaked lime, can make in the final formation gelling slurry and contain white lime, can improve the viscosity of slurry, strengthen pectisation, improve the intensity of foamed concrete; Flyash has advantages such as fineness is good, light weight, adjusting hydration, helps the hydration reaction of foamed concrete, and helps the formation of foam pore.
The particle diameter of the Aggregate of recycled concrete in the described gelling slurry is between 0.01 millimeter to 6 millimeters.Owing to contain the hardened waste and old concrete particle and the rubble of different size in the Aggregate of recycled concrete, by dwindling the particulate size, help the formation in foam hole on the one hand, after particle dwindles on the other hand, specific surface area increases, can increase the area that condenses between particle and the cement, increase cohesive force, improve the intensity of foamed concrete.
Method of making foamed concrete by waste and old concrete of the present invention comprises the steps:
A. with waste and old concrete fragmentation, screening, form Aggregate of recycled concrete;
B. in agitator, add Aggregate of recycled concrete, cement and the water that step a produces, stir, form the gelling slurry;
C. whipping agent is injected the whipping agent bucket, add an amount of water dilution and stir the formation foaming agent water solution;
D. the foaming agent water solution of gelling slurry that step b is formed and step c formation is drawn in the high pressure spraying pump according to certain ratio, and the foams mix that gelling slurry and whipping agent produce forms foam slurry;
E. utilize the high pressure spraying pump that steps d is produced foam slurry and spray, and carry out cast-in-site or die casting, make its moulding and solidify.
In the method for aforementioned making foamed concrete, the particle diameter of the Aggregate of recycled concrete that step a forms is between 0.01 millimeter to 6 millimeters; Can also add sand, rubble, unslaked lime or flyash during implementation step b, the unslaked lime of adding and water reaction generate white lime, so contain white lime in the gelling slurry that forms, for the ease of stirring, preferably adopt calcium lime powder; Can also in whipping agent, add suds-stabilizing agent during implementation step c, add suds-stabilizing agent and can improve foamy stability, promptly prolong foam, further improve performance, quality, yield rate and the qualification rate of foamed concrete from being formed into the shattered to pieces time; The foam slurry that steps d forms is sprayed through the high pressure spraying pump, and carries out cast-in-site or die casting, after making its moulding and solidifying, promptly forms the foamed concrete goods.
The foamed concrete of being made by waste and old concrete can be used as municipal Infrastructure roadbed material and building packing material.Because foamed concrete of the present invention has the filling self-compacting ability, it is closely knit to need not mechanical vibration, can form lightweight, firm, compact and semi-rigid packing material with certain intensity, it can be used as the building packing material, especially as the packing material of narrow slit, narrow groove in the building construction process.Because narrow slit, narrow groove are difficult to carry out the machinery compacting, adopt foamed concrete of the present invention, need not the machinery compacting, i.e. the obturator that solidifiable forms firm compactness and has certain intensity.Because the foamed concrete of density more than 500 kilograms per cubic meter has good load-bearing property, if obturator is had higher load-bearing requirement, can be by regulating the proportionlity between each composition, produce the foamed concrete of higher density and weight capacity, when being used for narrow slit, the filling of narrow groove, in the gelling slurry, can add an amount of setting accelerator, accelerate the setting rate of foamed concrete, guarantee the continuity of constructing.
The foamed concrete of being made by waste and old concrete can be used as roadbed or abutment packing material.Need carry out backfill to roadbed at wet hag section laying road, often need when building access bridge the abutment and the platform back of the body are filled, traditional method is banket (being high embankment), high filling subgrade of Xing Chenging or abutment like this, the platform back of the body is in various static loads, under the repeated stock effect of moving load, compacting gradually can take place, depression or consolidation deformation and non-uniform settling phenomenon, cause the road surface excessive distortion to occur, pavement cracking, the road surface is uneven, high embankment unstability, problems such as new and old subgrade settlement difference and bumping at bridge-head influence the work-ing life of road and comfortableness and the security that influence is travelled.Because foamed concrete of the present invention has the self-compacting ability after the filling, and solidify the back and form a kind of semirigid packing material, adopt foamed concrete of the present invention as roadbed, abutment, platform back of the body packing material, it solidifies the back and forms firm closely knit roadbed or abutment, can effectively avoid distortion and sedimentation, and then avoid phenomenons such as pavement cracking, distortion and bumping at bridge-head.Simultaneously because foamed concrete of the present invention has no lateral confinement compressive property, under self gravitation or vertical pressure effect transverse deformation can not take place, can not produce transverse pressure, avoid it that outer barricade of roadbed or abutment is formed pressure, and then avoid outer barricade unstability or break barricade.When motorway is widened, adopt foamed concrete of the present invention to be filled in former motorway both sides as packing material, need not to construct the slope in the motorway both sides, can avoid motorway to break away, subside, reduce floor space and land expropriation cost, reach the effect that reduces construction costs, saves the area.
The foamed concrete of being made by waste and old concrete can be used as tunnel, mine packing material.The restriction of surrounding enviroment after the mining of zone, mine, coal mining, quarrying, can form various waste and old tunnels, owing to can't be carried out machinery and tamp.Foamed concrete of the present invention has good filling self-compacting and no lateral confinement compressive property, utilize tunnel, foamed concrete backfill mine of the present invention, need not to carry out the machinery compacting, can form firm closely knit obturator, sedimentation can not take place in the mining area after the backfill, mining area safety be can improve, the redevelopment in waste and old mining area and utilization again helped.
The foamed concrete of being made by waste and old concrete can be used as the road material of speedily carrying out rescue work.Road subsides or damaged situation happens occasionally, and in order to guarantee The coast is clear, need to implement quick, simple emergency measure, and the material that requires to speedily carry out rescue work has rapid solidification and hardened feature.Because foamed concrete of the present invention has the filling self-compacting ability, need not mechanical compacting and can form the obturator with certain intensity.Subside or breakage is filled foamed concrete of the present invention at road, as the road emergency material of speedily carrying out rescue work, need not the mechanical vibration compacting and roll to form road surface firmly closely knit and that have certain ultimate compression strength, construction technology is simple, especially after adding setting accelerator, can shorten the repairing time, ensure The coast is clear; And its intensity is moderate, roots out when being convenient to road rehabilitation and excavates.
The foamed concrete of being made by waste and old concrete can be used as various underground utilities base mateirals.When laying various pipeline, pipeline is transferred needs to lay base mateiral, traditional constructional method is to lay sand as base mateiral, yet sand is softer, and can lose with current, belong to fluid materials, sedimentation phenomenon is often relatively more serious, be difficult to during the pipeline backfill soil in addition with carrying out the machinery compacting to reach density requirements, the especially laying of alleyway pipeline is owing to be subjected to the restriction of surrounding environment, be difficult to carry out the machinery compacting more, so just cause pipe base the cavity to occur, cause piping displacement, even cause pipeline break because of unbalance stress.Because foamed concrete of the present invention has lightweight, self-compacting and heat-insulating property, adopts foamed concrete of the present invention can form solid pipe sill, need not mechanical compacting and can reach closely knit effect, effectively avoids the generation of sedimentation phenomenon; In addition, after foamed concrete of the present invention solidifies, form the corresponding Guan Ji of shape with pipeline, and have good heat-insulating property because of foamed concrete of the present invention, the anti-freezing property of pipeline is improved, has effectively guaranteed the underground pipeline safety and stablization.
The foamed concrete of being made by waste and old concrete can be used as the body of wall construction material.Because foamed concrete of the present invention has certain intensity, and advantage with light weight, can be wall constructed with foamed concrete of the present invention, the non-load bearing wall of interior of building particularly, can have certain intensity, reduce the pressure of body of wall deadweight, and can obtain sound insulation, heat preservation effect simultaneously other structures of buildings.
The foamed concrete of being made by waste and old concrete can be used as the building heat preservation lagging material.Because a large amount of bubbles and micropore are contained in foamed concrete inside, have good thermal insulation performance.Can be used for roof heat insulation, wall thermal insulating, ground insulating etc., especially when the roofing heat insulating material, because its good heat-insulating property, can the attenuate thickness of wall body, increase usable floor area.Because it has the advantage of light weight, during as lagging material, can reduce the weight of buildings self in addition.
The foamed concrete of being made by waste and old concrete can be used as sound-proof material.Because the porousness of foamed concrete of the present invention has good air hole structure, has certain suction noise ability, can play good soundproof effect, significantly reduces noise pollution, improves living environment.
Adopt waste and old concrete to make foamed concrete and can reach sharp useless, environmental protection, energy-conservation effect, and can produce the foamed concrete of multiple performances such as having cost is low, in light weight, self-compacting, no lateral confinement resistance to compression, antidetonation, sound insulation, insulation, this kind foamed concrete serves many purposes, and can be used as lagging material, packing material, body of wall construction material, sound-proof material etc.Utilize waste and old concrete to produce foamed concrete, meet solid waste resource utilization, minimizing, innoxious processing requirements.
Description of drawings
Accompanying drawing 1 is a kind of technological process of production figure that is made foamed concrete by waste and old concrete.
Embodiment
As shown in Figure 1, with the waste and old concrete fragmentation, sieve out the Aggregate of recycled concrete of particle diameter between the 0.01-6 millimeter; Aggregate of recycled concrete is imported agitator, add cement and water, mix, form the gelling slurry; Simultaneously whipping agent is injected the whipping agent bucket, add an amount of water dilution and stir the formation foaming agent water solution; Gelling slurry and an amount of foaming agent water solution are drawn in the high pressure spraying pump in the lump, and the foams mix that gelling slurry and whipping agent produce forms foam slurry; Utilize the high pressure spraying pump that foam slurry is ejected into casting in the mould, after waiting to solidify, promptly form prefabricated foamed concrete goods.
Below by embodiment, the invention will be further described.
Embodiment 1
The waste and old concrete that produces in the digging process of concrete road surface through after broken, the screening, is formed Aggregate of recycled concrete with coarse aggregate, fine aggregate and the powder mixes of different-grain diameter; Aggregate of recycled concrete is imported agitator, add an amount of cement and water and mix, form the gelling slurry.Simultaneously, whipping agent and an amount of water are injected the whipping agent bucket, form foaming agent water solution.Gelling slurry and foaming agent water solution aspirated in the lump enter the high pressure spraying pump, the foams mix that gelling slurry and whipping agent produce forms foam slurry.Utilize the high pressure spraying pump that foam slurry is sprayed and be cast in narrow slit, the narrow groove, need not the machinery compacting, can form firm closely knit obturator at narrow slit, narrow groove.
Embodiment 2
The waste and old concrete that produces in the digging process of concrete road surface through after broken, the screening, is formed Aggregate of recycled concrete with coarse aggregate, fine aggregate and the powder mixes of different-grain diameter; Aggregate of recycled concrete is imported agitator, add an amount of cement, rubble and water and mix, form the gelling slurry.Simultaneously, whipping agent and an amount of water are injected the whipping agent bucket, form foaming agent water solution.Gelling slurry and foaming agent water solution aspirated in the lump enter the high pressure spraying pump, the foams mix that gelling slurry and whipping agent produce forms foam slurry.Utilize the high pressure spraying pump that aforementioned foam slurry is sprayed and be cast in the motorway both sides that to widen, and make the outside surface of pour mass form vertical plane, promptly need not to form the slope, that the foamed concrete of cast can form after solidifying is firmly closely knit, have good load-bearing property and the express highway roadbed of lateral deformation and landslide can not be taken place, because the motorway both sides do not have the slope, can save the area.
Embodiment 3
To build the waste and old concrete that produces in the construction process, coarse aggregate, fine aggregate and the powder mixes of different-grain diameter formed Aggregate of recycled concrete through after broken, the screening; Aggregate of recycled concrete is imported agitator, add an amount of cement, calcium lime powder, flyash and water and stir, mix, form the gelling slurry.Simultaneously, whipping agent and an amount of water are injected the whipping agent bucket, form foaming agent water solution.Gelling slurry and foaming agent water solution aspirated in the lump enter the high pressure spraying pump, the foams mix that gelling slurry and whipping agent produce forms foam slurry.Utilize the high pressure spraying pump that aforementioned foam slurry is sprayed and be cast in the tunnel, waste and old mine, can in waste and old tunnel, form the obturator of compactness after foamed concrete solidifies.
Embodiment 4
The waste and old concrete that produces in the digging process of concrete road surface through after broken, the screening, is formed Aggregate of recycled concrete with coarse aggregate, fine aggregate and the powder mixes of different-grain diameter; Aggregate of recycled concrete is imported agitator, add an amount of cement, flyash and water and mix, form the gelling slurry.Simultaneously, whipping agent, an amount of water and setting accelerator are injected the whipping agent bucket, form foaming agent water solution.Gelling slurry and foaming agent water solution aspirated in the lump enter the high pressure spraying pump, foam and setting accelerator that gelling slurry, whipping agent produce mix, and form foam slurry.Utilize the high pressure spraying pump that aforementioned foam slurry is sprayed and be cast in that road subsides or breakage, and make the foamed concrete of cast concordant, can form firm road surface after foamed concrete solidifies, realize The coast is clear fast with the intact part of road.When treating thorough repairing road,, be convenient to remove and excavation because the foamed concrete intensity of solidifying is moderate.
Embodiment 5
To produce waste and old concrete in the digging process of concrete road surface through after fragmentation, sieving, with coarse aggregate, fine aggregate and the powder mixes formation Aggregate of recycled concrete of different-grain diameter; Aggregate of recycled concrete is imported agitator, add an amount of cement, sand, flyash, calcium lime powder and water and stir, mix, form the gelling slurry.Simultaneously, whipping agent, suds-stabilizing agent and water are injected the whipping agent bucket, stir and form foaming agent water solution.Gelling slurry and foaming agent water solution aspirated in the lump enter the high pressure spraying pump, the foams mix that gelling slurry and whipping agent produce forms foam slurry.Utilize the high pressure spraying pump aforementioned foam slurry to be sprayed and is cast in the bottom of the pipe-line tank that digs in the alleyway, when the foam slurry ot-yet-hardened, pipeline is placed on the foam slurry, after foamed concrete solidifies, can form firm closely knit Guan Ji, and can make pipeline be embedded in foamed concrete pipe base inside.
Embodiment 6
To produce waste and old concrete in the demolishing buildings process through after fragmentation, sieving, with coarse aggregate, fine aggregate and the powder mixes formation Aggregate of recycled concrete of different-grain diameter; Aggregate of recycled concrete is imported agitator, add an amount of cement, sand, rubble, calcium lime powder and water and stir, mix, form the gelling slurry.Simultaneously, whipping agent, suds-stabilizing agent and water are injected the whipping agent bucket, stir and form foaming agent water solution.Gelling slurry and foaming agent water solution aspirated in the lump enter the high pressure spraying pump, the foams mix that gelling slurry and whipping agent produce forms foam slurry.Utilize the high pressure spraying pump that aforementioned foam slurry is sprayed and be cast in the body of wall mould of making in advance, after treating the foamed concrete moulding and solidifying, remove the body of wall mould, promptly form foaming concrete wall.This body of wall has lightweight advantage, reduces the pressure of body of wall to other parts of buildings, and has good soundproof effect.
Embodiment 7
To produce waste and old concrete fragmentation, screening in the demolishing buildings process, with coarse aggregate, fine aggregate and the powder mixes formation Aggregate of recycled concrete of different-grain diameter; Aggregate of recycled concrete is imported agitator, add an amount of cement, sand, rubble, calcium lime powder, flyash and water and stir, mix, form the gelling slurry.Simultaneously, whipping agent, suds-stabilizing agent and water are injected the whipping agent bucket, stir and form foaming agent water solution.Gelling slurry and foaming agent water solution aspirated in the lump enter the high pressure spraying pump, the foams mix that gelling slurry and whipping agent produce forms foam slurry.Utilize the high pressure spraying pump that aforementioned foam slurry is sprayed and spread upon on the metope, make it form one deck thermal insulation layer at surface of wall.The foamed concrete thermal insulation layer has good heat insulation effect, only needs thin thermal insulation layer, can reach the effect of heat insulating, increases the usable floor area in house; Because foamed concrete has the advantage of light weight, reduce the weight of body of wall itself simultaneously.
Embodiment 8
To produce waste and old concrete in the demolishing buildings process through after fragmentation, sieving, with coarse aggregate, fine aggregate and the powder mixes formation Aggregate of recycled concrete of different-grain diameter; Aggregate of recycled concrete is imported agitator, add an amount of cement, sand, rubble, calcium lime powder, flyash and water and stir, mix, form the gelling slurry.Simultaneously, whipping agent, suds-stabilizing agent and water are injected the whipping agent bucket, stir and form foaming agent water solution.Gelling slurry and foaming agent water solution aspirated in the lump enter the high pressure spraying pump, the foams mix that gelling slurry and whipping agent produce forms foam slurry.Utilize the high pressure spraying pump that aforementioned foam slurry is sprayed and be cast in the tabular mould of making in advance, after treating the foamed concrete moulding and solidifying, remove mould, promptly form the foamed concrete insulating board, can in the foamed concrete insulating board, arrange reinforcement materials such as reinforcing bar in case of necessity, this foamed concrete warming plate is installed between urban road and the residential quarter to have good soundproof effect, can reduce the sound pollution of residential quarter, improve living environment.
The foregoing description only is an example for convenience of description, is not limitation of the present invention.Obviously; the present invention can also have other versions, for example can also add other subsidiary material in the gelling slurry, can also add other auxiliary agents in the whipping agent; as long as without prejudice to spirit of the present invention or principal character, all be in protection scope of the present invention.
Claims (14)
1. a foamed concrete of being made by waste and old concrete is formed by gelling slurry and foams mix, it is characterized in that containing in the described gelling slurry waste and old concrete through Aggregate of recycled concrete, cement and water broken, that the screening back forms.
2. the foamed concrete of being made by waste and old concrete as claimed in claim 1 is characterized in that containing sand, rubble, white lime or flyash in the described gelling slurry.
3. the foamed concrete of being made by waste and old concrete as claimed in claim 1, the particle diameter that it is characterized in that described Aggregate of recycled concrete is between 0.01 millimeter to 6 millimeters.
4. make the method for foamed concrete by waste and old concrete, comprise the steps:
A. with waste and old concrete fragmentation, screening, form Aggregate of recycled concrete;
B. in agitator, add Aggregate of recycled concrete, cement and the water that step a produces, stir, form the gelling slurry;
C. whipping agent is injected the whipping agent bucket, add an amount of water dilution and stir the formation foaming agent water solution;
D. the foaming agent water solution of gelling slurry that step b is formed and step c formation is drawn in the high pressure spraying pump according to certain ratio, and the foams mix that gelling slurry and whipping agent produce forms foam slurry;
E. utilize the high pressure spraying pump that steps d is produced foam slurry and spray, and carry out cast-in-site or die casting, make its moulding and solidify.
5. method of making foamed concrete as claimed in claim 4 by waste and old concrete, the particle diameter that it is characterized in that the Aggregate of recycled concrete that step a forms is between 0.01 millimeter to 6 millimeters; Add sand, rubble, unslaked lime or flyash during implementation step b.
6. method of making foamed concrete by waste and old concrete as claimed in claim 4 adds suds-stabilizing agent when it is characterized in that implementation step c.
7. the foamed concrete of being made by waste and old concrete is as the application of building packing material.
8. the foamed concrete of being made by waste and old concrete is as the application of roadbed or abutment packing material.
9. the foamed concrete of being made by waste and old concrete is as the application of tunnel, mine packing material.
10. the foamed concrete of being made by waste and old concrete is as the speedily carry out rescue work application of material of road.
11. the foamed concrete of being made by waste and old concrete is as the application of the basic packing material of pipe.
12. the foamed concrete of being made by waste and old concrete is as the application of body of wall construction material.
13. the foamed concrete of being made by waste and old concrete is as the application of building heat preservation lagging material.
14. the foamed concrete of being made by waste and old concrete is as the application of sound-proof material.
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| CNA2008101758887A CN101391902A (en) | 2008-11-10 | 2008-11-10 | Foaming concrete made by waste and old concrete and production method thereof and use |
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| CNA2008101758887A CN101391902A (en) | 2008-11-10 | 2008-11-10 | Foaming concrete made by waste and old concrete and production method thereof and use |
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| CN101391902A true CN101391902A (en) | 2009-03-25 |
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| CN101915109A (en) * | 2010-08-06 | 2010-12-15 | 中国矿业大学 | A Concrete Spraying Method for Dust Reduction and Bomb Reduction |
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| CN108033807A (en) * | 2017-11-27 | 2018-05-15 | 固岩科技发展有限公司 | A kind of construction method based on the cementitious material of iron tailings in highway high roadbed |
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| CN112174594A (en) * | 2019-07-01 | 2021-01-05 | 林嘉政 | Recycled concrete and preparation method thereof |
| CN112279580A (en) * | 2020-09-16 | 2021-01-29 | 昆明理工大学 | A production method for spraying and hanging foamed concrete walls on site |
| CN112279580B (en) * | 2020-09-16 | 2022-09-16 | 昆明理工大学 | A production method for spraying and hanging foamed concrete walls on site |
| CN113666684A (en) * | 2021-07-30 | 2021-11-19 | 中国建筑第八工程局有限公司 | Regenerated foamed concrete product and preparation method thereof |
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Effective date of registration: 20090320 Address after: Beijing City, Chaoyang District Lin Tsui Road Yilinjiayuan No. 19 Building 11 unit 201 Applicant after: Beijing Sifangrugang Concrete Product Co., Ltd. Address before: Beijing City, Chaoyang District Lin Tsui Road Yilinjiayuan No. 19 Building 11 unit 201 Applicant before: Liang, Lin Hua Co-applicant before: Liang Bin |
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