Classifications

• • 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
  • C04B7/00—Hydraulic cements
  • C04B7/02—Portland cement
• • 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
  • C04B7/00—Hydraulic cements
  • C04B7/36—Manufacture of hydraulic cements in general
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
  • G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
  • G01N33/383—Concrete or cement

Definitions

• the given invention is referred to building materials production and can be used to define the activity of Portland cements and their variations as well as strength of any heavy concretes manufactured on the basis of this cement.
• Table 1 gives activity parameters for purely clinker Portland cements received by formula 1 at different temperatures
• the technical result of the invention is in reducing time for defining cement activity, higher accuracy of the received results for water and cement amount in concrete mixture.
• the given method enables within a short period of time to define with maximum accuracy cement activity, cement and water amount in concrete mixture.
• the method is performed in the following way: one takes Portland cement of any type, produced by simultaneous grinding clinker and gypsum (together with mineral additives or without them), prepares water-cement mixture of definite concentration by stirring it for 30-60 seconds, then he lowers the conductivity meter and measures S.C. and temperature in a special device constructed for defining cement activity and concrete strength and equipped with a special program where other characteristics of cement and concrete mixture are introduced, resulting in defining cement activity, cement and water amount in concrete mixture and predicted concrete strength.
• Formula (2) gives the value of cement activity in bending.
• Strength value in compression where the member -91 ⁇ / ⁇ is absent in formula (2), is calculated as follows:
• coefficient C one can take concrete mixture produced on the basis of that cement lot for which C is determined by previously known specific consumption.
• Total water amount in one cubic meter of concrete mixture is calculated according to the formula:

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Ceramic Engineering (AREA)
• Materials Engineering (AREA)
• Structural Engineering (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Food Science & Technology (AREA)
• General Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Physics & Mathematics (AREA)
• Analytical Chemistry (AREA)
• Biochemistry (AREA)
• Inorganic Chemistry (AREA)
• General Physics & Mathematics (AREA)
• Immunology (AREA)
• Pathology (AREA)
• Curing Cements, Concrete, And Artificial Stone (AREA)
• Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
• Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

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ID=49624436

Family Applications (1)

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Cited By (2)

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• 2012
  • 2012-05-22 GE GEAP201212719A patent/GEP20146039B/en unknown
• 2013
  • 2013-04-18 WO PCT/GE2013/000002 patent/WO2013175246A2/fr not_active Ceased

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