JPH0699175B2 - Cement-based cured product containing plastic powder and method for producing the same - Google Patents
Cement-based cured product containing plastic powder and method for producing the sameInfo
- Publication number
- JPH0699175B2 JPH0699175B2 JP23259190A JP23259190A JPH0699175B2 JP H0699175 B2 JPH0699175 B2 JP H0699175B2 JP 23259190 A JP23259190 A JP 23259190A JP 23259190 A JP23259190 A JP 23259190A JP H0699175 B2 JPH0699175 B2 JP H0699175B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- plastic powder
- aggregate
- powder
- thermosetting plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
Landscapes
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、骨材あるいは混和材料の一部として微粉末状
乃至粒子状の熱硬化性プラスチック粉末からなる有機高
分子物質を利用し、セメントペースト，モルタル材ある
いはコンクリート材中に混入させて成形したセメント系
硬化体に関するものである。TECHNICAL FIELD The present invention utilizes an organic polymer substance composed of a fine powdery or particulate thermosetting plastic powder as a part of an aggregate or an admixture, and a cement paste, The present invention relates to a cement-based hardened material that is molded by being mixed into a mortar material or a concrete material.
なお、本出願において熱硬化性プラスチックとは既に成
形・固化された熱硬化性樹脂の成形品を指し、またセメ
ント系硬化体とは、板，ブロック等のセメント製品だけ
でなく建築や土木の構造物などに利用されるセメントを
硬化させて製造したあらゆる物品を指すものである。In the present application, the thermosetting plastic refers to a molded product of thermosetting resin that has already been molded and solidified, and the cement-based cured product refers to not only cement products such as boards and blocks but also construction and civil engineering structures. It refers to all articles manufactured by hardening cement used for things.
従来の技術 セメントペースト，モルタルあるいはコンクリートから
作られるセメント系製品は、機械的強度を保持しなけれ
ばならないのは勿論のこと、それと共に寒冷地では製品
中に含まれる水分の凍結融解に対しても、高い抵抗力を
示すことが必要である。特に一日の気温差が大きい地域
においては、吸収されている水分の凍結融解の繰り返し
でセメント製品か破壊され、使用不能になることが極め
て多い。この凍結融解現象は製品中に含有された水分が
凍結されて膨張することによって引き起こされる。2. Description of the Related Art Cement-based products made from cement paste, mortar or concrete not only have to retain mechanical strength, but also in freezing and thawing of water contained in products in cold regions. , It is necessary to show high resistance. Especially in areas with large daily temperature differences, cement products are often destroyed by repeated freezing and thawing of absorbed water, rendering them unusable. This freeze-thaw phenomenon is caused by freezing and expansion of the water contained in the product.
ところで、広く一般に使用されている各種軽量ブロッ
ク，重量ブロック，軽量気泡コンクリート（ALC）など
の機械的特性を向上させるための手段としては、種々の
方法がとられている。それらは骨材の種類，品質，水／
セメント比，砂／セメント比などの配合の調節，作り
方，養生方法などによって行なわれている。By the way, various methods have been adopted as means for improving the mechanical properties of various lightweight blocks, weight blocks, lightweight cellular concrete (ALC) and the like that are widely and commonly used. They are aggregate type, quality, water /
It is carried out by adjusting the mixing ratio such as cement ratio and sand / cement ratio, how to make it, and curing method.
本発明が特に効果を発揮する軽量モルタルや軽量コンク
リートは、一般に塀，敷石，床材，壁材，天井材として
広く使用されている。これらの軽量モルタルやコンクリ
ートは、粗骨材として火山噴出物である軽石が用いら
れ、それに細骨材である砂を混合してセメントで凝結さ
せたもので、軽石と砂との混合割合を種々変化させるこ
とにより、密度と強度の異なるものを作っている。例え
ば、Ａ種軽量ブロックでは軽石のみを使い、その単位体
積重量は1.4ton/m3以下で圧縮強度は40kgf/cm2以上であ
る。Ｂ種軽量ブロックは軽石と砂から作られ単位体積重
量は1.4ton/m3以上で圧縮強度40〜80kgf/cm2,C種軽量ブ
ロックは、砂を骨材として密度を高くしたものである。
その他に、軽石を利用しない各種の重量ブロックも存在
する。The lightweight mortar and lightweight concrete to which the present invention is particularly effective are generally widely used as walls, paving stones, floor materials, wall materials, and ceiling materials. These lightweight mortars and concretes use pumice, which is a volcanic ejecta, as coarse aggregate, and sand, which is fine aggregate, is mixed and coagulated with cement. The mixing ratio of pumice and sand varies. By changing it, we make things with different densities and strengths. For example, the class A lightweight block uses only pumice, its unit volume weight is 1.4ton / m 3 or less, and its compressive strength is 40kgf / cm 2 or more. The class B lightweight block is made of pumice and sand and has a unit volume weight of 1.4 ton / m 3 or more and a compressive strength of 40 to 80 kgf / cm 2 , and the class C lightweight block is made of sand as an aggregate and has a high density.
In addition, there are various weight blocks that do not use pumice.
軽量建材の一つに軽量気泡コンクリート（ALC）があ
る。これはセメントモルタル中に、金属アルミニウム粉
末を分散させ、加熱して発泡させたり、あるいは界面活
性剤で発泡させるなどして全体を軽量化したものであ
る。ALC自体の特性は、単位体積重量0.5ton/m3と小さ
い。しかし、曲げ強度は10kgf/cm2程度、圧縮強度は30k
gf/cm2程度にしか過ぎないので、材料中に鉄製の金網あ
るいは鋼材などを入れて補強している。一方、ALCは、
材料内に独立気泡及び連続気泡が多数あるから、吸水率
が高くなるのは避けられないし、これが凍結した場合に
前記特性を低下させることになる。One of the lightweight building materials is lightweight cellular concrete (ALC). This is one in which metallic aluminum powder is dispersed in cement mortar and heated to cause foaming, or a surfactant is used for foaming to reduce the overall weight. The characteristics of ALC itself are small, with a unit volume weight of 0.5 ton / m 3 . However, bending strength is about 10 kgf / cm 2 , compressive strength is 30 k
Since no more than about gf / cm 2, it is reinforced to put such as steel wire mesh or steel in the material. On the other hand, ALC
Since there are a large number of closed cells and open cells in the material, it is inevitable that the water absorption rate becomes high, and if it freezes, the above characteristics are deteriorated.
このように、凍結融解に対する性能を向上させるために
は、ALCやブロック材に撥水性を与えることが効果的で
あるので、高価なシリコン樹脂を塗布したり、あるいは
含浸させたりすることが一部で行なわれている。As described above, in order to improve the freeze-thaw performance, it is effective to give water repellency to the ALC and the block material. Therefore, it may be necessary to apply or impregnate an expensive silicone resin. It is done in.
発明が解決しようとする課題 本発明は、前述のような事実を踏まえ、軽量でしかも凍
結融解に対して強い抵抗性を示すと共に従来にない大き
な曲げ強度，圧縮強度を持ち、変形，収縮，亀裂等の欠
陥が極めて少ないセメント系硬化体を提供しようとする
ものである。DISCLOSURE OF INVENTION Problems to be Solved by the Invention Based on the above-mentioned facts, the present invention is lightweight, exhibits strong resistance to freezing and thawing, and has unprecedented large bending strength and compressive strength, and has deformation, shrinkage and cracks. The present invention is intended to provide a cement-based hardened product having extremely few defects such as.
更に、本発明は産業廃棄物となった熱硬化性プラスチッ
ク、特にガラス繊維強化熱硬化性プラスチック（GFRP）
を、本出願の発明者らが開発した微粉砕装置によって粉
末化して利用することができるので、資源の再利用に役
立ち、環境保護や公害対策の面でも多いに貢献しようと
するものである。In addition, the present invention is an industrial waste thermosetting plastic, especially glass fiber reinforced thermosetting plastic (GFRP).
The present invention can be used after being pulverized by a fine pulverizing apparatus developed by the inventors of the present application, which is useful for reusing resources and contributes much to environmental protection and pollution control.
課題を解決するための手段 前記課題を解決するための本出願のセメント系硬化体と
その製造方法について説明する。Means for Solving the Problems A cement-based cured product of the present application and a method for producing the same will be described for solving the problems.
先ず、本出願のセメント系硬化体は、微粉末状乃至粒子
状の熱硬化性プラスチック粉末を、全量の10〜50wt％含
むセメント系硬化体において、少なくとも該硬化体中の
熱硬化性プラスチック粉末が該プラスチックの熱変形温
度以上の熱処理により、セメント凝結物または骨材の表
面に接着・固化した状態にあることを特徴とするもので
ある。また、本出願のプラスチック粉末を含むセメント
系硬化体の製造方法は、全量の10〜50wt％の微粉末状乃
至粒子状の熱硬化性プラスチック粉末を、セメントペー
スト，モルタル材あるいはコンクリート材中に分散さ
せ、それを所定形状に成形・養生させた後に、少なくと
も該成形表面を前記熱硬化性プラスチックの熱変形温度
以上に加熱処理することを特徴とするものである。First, the cement-based hardened product of the present application is a cement-based hardened product containing 10 to 50 wt% of the total amount of a thermosetting plastic powder in the form of fine powder or particles, and at least the thermosetting plastic powder in the hardened product is It is characterized in that it is in a state of being adhered and solidified on the surface of a cement condensate or an aggregate by a heat treatment at a temperature above the heat deformation temperature of the plastic. In addition, the method for producing a cement-based hardened body containing the plastic powder of the present application, 10 to 50 wt% of the total amount of fine powder or particulate thermosetting plastic powder is dispersed in cement paste, mortar material or concrete material. After molding and curing it into a predetermined shape, at least the molding surface is heat-treated at a temperature not lower than the heat deformation temperature of the thermosetting plastic.
本出願の発明の熱硬化性プラスチックは、不飽和ポリエ
ステル樹脂，エポキシ樹脂，フエノール樹脂などの熱硬
化性合成樹脂からなるプラスチックである。これらのプ
ラスチックの一度使用して廃棄物となったプラスチック
を粉砕したものでも適用が可能である。更に上記熱硬化
性プラスチックをガラス繊維，炭素繊維，ケブラー繊維
など各種繊維で補強した繊維強化熱硬化性プラスチック
（FRP）でもかまわない。The thermosetting plastic of the invention of the present application is a plastic made of thermosetting synthetic resin such as unsaturated polyester resin, epoxy resin and phenol resin. It is also possible to use a crushed plastic that is a waste of one of these plastics that has been used once. Further, a fiber reinforced thermosetting plastic (FRP) obtained by reinforcing the above thermosetting plastic with various fibers such as glass fiber, carbon fiber and Kevlar fiber may be used.
セメント系硬化体中に含有させるプラスチックの形状
は、微粉末状乃至粒子状てその大きさは、粒径10μｍ〜
10mm,望ましくは50μｍ〜500μｍである。また、熱硬化
性プラスチック粉末の量は製造されるセメント系硬化体
の強度の面から、全量の10〜50wt％か好ましい。The shape of the plastic contained in the cement-based hardened material is in the form of fine powder or particles, and the size is from 10 μm to
10 mm, preferably 50 μm to 500 μm. Further, the amount of the thermosetting plastic powder is preferably 10 to 50 wt% of the total amount from the viewpoint of the strength of the cement-based cured product to be produced.
一方、加熱温度は100℃から350℃、望ましくは130℃〜2
50℃である。従って使用する熱硬化性プラスチックは、
これらの温度で熱変形するものであれば、使用可能であ
る。On the other hand, the heating temperature is 100 ℃ to 350 ℃, preferably 130 ℃ to 2 ℃.
It is 50 ° C. Therefore, the thermosetting plastic used is
Any material that can be thermally deformed at these temperatures can be used.
また、加熱手段としては、乾燥機中で３時間程度充分に
加熱して成形硬化体の中心部のプラスチック粉末まで完
全に熱変形することが好ましいが、硬化体の用途に応じ
て、例えば単に成形硬化体の表面をバーナー等で加熱し
て少なくとも表面に存材するプラスチック粉末を熱変形
させるのみでもよいものである。Further, as the heating means, it is preferable to sufficiently heat in a dryer for about 3 hours to completely thermally deform even the plastic powder in the center of the molded and cured product, but depending on the use of the cured product, for example, simply molding It suffices to heat the surface of the cured body with a burner or the like to thermally deform at least the plastic powder present on the surface.
作用 セメント系硬化体中に単に熱硬化性プラスチック粉末を
均一に分散させることによっても、ブロック等の硬化体
の内部に分散した熱硬化性プラスチック粉末が水に対し
て撥水性を示すことから、材料の吸水率を低下させ、凍
結融解に対してもある程度の性能を持たせることができ
る。しかし、その程度は余り高くない。それに対して、
本出願の発明は、更にその熱硬化性プラスチック粉末が
熱変形する温度以上に硬化体に熱処理を加えるので、セ
メント系硬化体の材料内に均一に分布している熱硬化性
プラスチック粉末は熱変形し、あるいは一部分解、流動
化することによって形状変化が生じ、その結果として、
プラスチックが骨材あるいはセメント凝結物の表面に接
着・固化することになる。Action Even if the thermosetting plastic powder is evenly dispersed in the cement-based hardened product, the thermosetting plastic powder dispersed inside the hardened product such as blocks shows water repellency to water. It is possible to reduce the water absorption rate and to have some performance against freeze-thawing. However, the degree is not so high. On the other hand,
In the invention of the present application, since the heat treatment is applied to the hardened body at a temperature higher than the temperature at which the thermosetting plastic powder is thermally deformed, the thermosetting plastic powder uniformly distributed in the material of the cement-based hardened body is thermally deformed. Or partly decomposed and fluidized, resulting in a change in shape, and as a result,
The plastic will adhere and solidify on the surface of the aggregate or the cement aggregate.
即ちフロック等の硬化体中に存在する細孔構造の表面上
に撥水性の皮膜を形成すると共に、骨材と骨材，あるい
は骨材とセメント凝結物，あるいはセメント凝結物どう
しの接触点を被覆することによって、一種の接着剤とし
ても作用することになる。その結果として、硬化全体に
撥水処理と接着剤塗布処理を同時に行なったようにな
り、材料全体の強度を向上させると共に吸水率を低下さ
せ耐凍結融解性の向上に結びつくことになる。That is, a water-repellent film is formed on the surface of the pore structure existing in the hardened material such as floc, and the contact point between the aggregate and the aggregate, the aggregate and the cement aggregate, or the cement aggregate is covered. By doing so, it also acts as a kind of adhesive. As a result, it becomes as if the water-repellent treatment and the adhesive coating treatment were simultaneously performed on the entire curing, which not only improves the strength of the entire material but also lowers the water absorption rate, which leads to the improvement of freeze-thaw resistance.
本出願の発明の硬化体は、このように骨材として全量の
10〜50wt％のプラスチック粉末を含むものであるので、
少なくとも硬化体の表面に対して熱硬化性プラスチック
粉末の熱変形温度以上に加熱処理すると、加熱された部
分のプラスチックが熱変形乃至は融解して各骨材あるい
はセメント凝結物の表面を被覆することになり、その部
分の撥水処理が達成される。それによって吸水率が低く
なると共に、加熱された部分では各結合点が接着され、
ブロック材等の硬化体の強度の向上もはかられる。Thus, the cured product of the invention of the present application is
Since it contains 10 to 50 wt% plastic powder,
When heat treatment is applied to at least the surface of the hardened body at a temperature higher than the heat deformation temperature of the thermosetting plastic powder, the plastic in the heated portion is thermally deformed or melted to cover the surface of each aggregate or cement aggregate. And the water repellent treatment of that part is achieved. As a result, the water absorption becomes low, and at the heated part, the bonding points are bonded,
The strength of the hardened material such as a block material can be improved.
実施例 本出願の発明を実施例に基いて具体的に説明する。本実
施例はモルタル材であって、細骨材として砂と共に用い
る熱硬化性プラスチック粉末としては、本出願の発明者
らが開発した粉砕装置を利用して産業廃棄物であるFRP
の廃材から作られた粉末を用いた。EXAMPLES The invention of the present application will be specifically described based on examples. This example is a mortar material, and as the thermosetting plastic powder used with sand as fine aggregate, FRP which is an industrial waste using a crushing device developed by the inventors of the present application.
A powder made from waste wood was used.
次にその詳細を説明すると、モルタルには普通ポルトラ
ンドセメントと豊浦標準砂を用い、骨材−セメント比を
2.0,水−セメント比を0.65とした。その砂の一部をFRP
粉末（ガラス繊維／不飽和ポリエステル樹脂，平均粒径
44μｍ）で置換えた。その量は骨材量の10％,20％，お
よび30％とした。セメント，砂,FRP粉末の三者を充分に
混合したものに水を加え、モルタルミキサーで混合し
た。なお、FRP置換量が30％の場合には流動性がなくな
るので、高性能減水剤（花王マイテイ‐FD）をセメント
重量の３％を添加した。Explaining the details next, ordinary portland cement and Toyoura standard sand are used for the mortar, and the aggregate-cement ratio is
2.0, water-cement ratio of 0.65. FRP a part of that sand
Powder (glass fiber / unsaturated polyester resin, average particle size
44 μm). The amount was 10%, 20%, and 30% of the aggregate amount. Water was added to a well-mixed mixture of cement, sand and FRP powder, and mixed with a mortar mixer. Since the fluidity disappears when the FRP replacement amount is 30%, 3% of the cement weight was added as a high performance water reducing agent (Kao Mighty-FD).
フロー値を測定後、型枠（4cm×4cm×16cm）に入れ、締
め固めを行った。これを空中養生の後脱型し、水中で養
生して供試体を作った。供試体は、材令28日に水中から
取り出し、気乾した後の重量および密度を求めると共
に、曲げ強度および圧縮強度を測定した。更に、気乾し
た後に、各供試体を200℃に加熱した乾燥機中に入れ３
時間熱処理した。室温にまで冷却した後に、供試体の重
量を測定し、曲げ強度および圧縮強度を測定し、得られ
た結果を表１に示す。After measuring the flow value, it was placed in a mold (4 cm x 4 cm x 16 cm) and compacted. After curing in the air, this was demolded and cured in water to make a specimen. The specimens were taken out from water on the 28th day of age, air-dried to obtain the weight and density, and the bending strength and compressive strength were measured. Furthermore, after air-drying, put each sample into a dryer heated to 200 ° C.
Heat treated for hours. After cooling to room temperature, the weight of the test piece was measured, the bending strength and the compression strength were measured, and the obtained results are shown in Table 1.
表中には、加熱処理前後の強度から算出した強度の増加
倍率を求め記した。供試体を200℃に加熱することによ
って、各供試体とも11％程度重量が減少した。200℃に
加熱した後の供試体には、変形，収縮，膨張，亀裂，着
色等は見られなかった。曲げ強度および圧縮強度は、供
試体を、200℃に加熱することで、いずれの場合も高く
なった。その増加倍率はFRP粉末を入れないモルタル自
体よりも大きく、FRP粉末の含有率が多くなる程増加し
た。In the table, the rate of increase in strength calculated from the strength before and after the heat treatment was calculated and described. By heating the specimens to 200 ° C, the weight of each specimen decreased by about 11%. No deformation, shrinkage, swelling, cracking, or coloring was observed in the specimen after heating to 200 ° C. Bending strength and compressive strength were increased in all cases by heating the specimen to 200 ° C. The rate of increase was larger than that of mortar itself without FRP powder, and increased as the content of FRP powder increased.
なお、本出願の発明のセメント系硬化体に対して更にシ
リコン樹脂を塗布したり、あるいはフッ素化合物処理な
どを行っても構わない。The cement-based cured product of the invention of the present application may be further coated with a silicone resin or may be treated with a fluorine compound.
発明の効果 本出願の発明によれば、微粉末状乃至粒子状の熱硬化性
プラスチック粉末を、セメントペースト，モルタル材あ
るいはコンクリート材の中に混合させ、前記プラスチッ
クの熱変形温度以上に加熱することにより、従来にない
曲げ強度，圧縮強度の増強が得られ、しかも変形，収
縮，膨張，亀裂等の欠陥がなく、軽量で、しかも凍結融
解性に強い優れたセメント系硬化体を提供することがで
きる また、本出願の発明は、熱硬化性プラスチック粉末とし
て、廃棄されたFRPなどの熱硬化性プラスチックの廃材
を利用することができるので、先細りが問題になってい
る軽石や砂などの骨材資源の枯渇を防ぎ、地球資源の確
保，地球環境の保全の面からも社会的に大いに貢献する
ことができる。 EFFECTS OF THE INVENTION According to the invention of the present application, a fine powdery or particulate thermosetting plastic powder is mixed in a cement paste, a mortar material or a concrete material and heated to a temperature not lower than the thermal deformation temperature of the plastic. As a result, it is possible to provide an excellent cement-based hardened product which can obtain an unprecedented increase in bending strength and compressive strength, is free from defects such as deformation, shrinkage, expansion, and cracks, is lightweight, and has a strong freeze-thaw property. In addition, according to the invention of the present application, waste thermosetting plastic such as discarded FRP can be used as the thermosetting plastic powder, so that aggregates such as pumice and sand where tapering is a problem. It can contribute to society greatly from the viewpoints of preventing resource depletion, securing global resources, and preserving the global environment.
Claims (2)
ク粉末を全量の10〜50wt％含むセメント系硬化体におい
て、少なくとも該硬化体の表面の熱硬化性プラスチック
粉末が該プラスチックの熱変形温度以上の熱処理によ
り、セメント凝結物または骨材の表面に接着・固化した
状態にあることを特徴とするプラスチック粉末を含むセ
メント系硬化体1. A cement-based hardened body containing 10 to 50 wt% of a total amount of finely powdered or particulate thermosetting plastic powder, wherein at least the thermosetting plastic powder on the surface of the hardened body has a heat distortion temperature of the plastic. By the above heat treatment, a cement-based hardened body containing plastic powder, which is in a state of being adhered and solidified on the surface of a cement aggregate or an aggregate.
熱硬化性プラスチック粉末をセメントペースト，モルタ
ル材あるいはコンクリート材中に混入させ、それを所定
形状に成形・養生した後に、少なくとも該成形表面を前
記プラスチックの熱変形温度以上に、加熱処理すること
を特徴とするプラスチック粉末を含むセメント系硬化体
の製造方法2. A total of 10 to 50 wt% of a fine powdery or particulate thermosetting plastic powder is mixed into a cement paste, a mortar material or a concrete material, and after molding and curing into a predetermined shape, at least A method for producing a cement-based hardened body containing a plastic powder, wherein the molded surface is heat-treated at a temperature not lower than the heat deformation temperature of the plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23259190A JPH0699175B2 (en) | 1990-09-04 | 1990-09-04 | Cement-based cured product containing plastic powder and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23259190A JPH0699175B2 (en) | 1990-09-04 | 1990-09-04 | Cement-based cured product containing plastic powder and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04114978A JPH04114978A (en) | 1992-04-15 |
| JPH0699175B2 true JPH0699175B2 (en) | 1994-12-07 |
Family
ID=16941760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23259190A Expired - Lifetime JPH0699175B2 (en) | 1990-09-04 | 1990-09-04 | Cement-based cured product containing plastic powder and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0699175B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992074A (en) * | 2014-04-15 | 2014-08-20 | 芜湖中民科技建材有限公司 | Concrete material and method for preparing wear resistance aerated brick from concrete material |
| CN105948640A (en) * | 2016-04-28 | 2016-09-21 | 广州市贝固建材有限公司 | Novel cement-based infiltrating crystalline waterproof material and preparation method therefor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548106A (en) * | 2020-05-13 | 2020-08-18 | 西安工程大学 | A kind of underwater non-dispersed concrete and preparation method thereof |
| CN114591053A (en) * | 2020-12-04 | 2022-06-07 | 广东景龙建设集团有限公司 | Inorganic cementing material product and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0635350B2 (en) * | 1985-12-13 | 1994-05-11 | 株式会社クボタ | Method for manufacturing lightweight inorganic building materials with excellent frost resistance |
| JPS645934A (en) * | 1987-06-30 | 1989-01-10 | Mitsubishi Mining & Cement Co | Inorganic hardened body having superior frost damage resistance and production thereof |
| JPH02145492A (en) * | 1988-11-28 | 1990-06-04 | Jsp Corp | Production of light-weight cellular cement compact |
-
1990
- 1990-09-04 JP JP23259190A patent/JPH0699175B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992074A (en) * | 2014-04-15 | 2014-08-20 | 芜湖中民科技建材有限公司 | Concrete material and method for preparing wear resistance aerated brick from concrete material |
| CN105948640A (en) * | 2016-04-28 | 2016-09-21 | 广州市贝固建材有限公司 | Novel cement-based infiltrating crystalline waterproof material and preparation method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04114978A (en) | 1992-04-15 |
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