JP3178480B2 - Manufacturing method of lightweight cellular concrete - Google Patents

Manufacturing method of lightweight cellular concrete

Info

Publication number
JP3178480B2
JP3178480B2 JP12857692A JP12857692A JP3178480B2 JP 3178480 B2 JP3178480 B2 JP 3178480B2 JP 12857692 A JP12857692 A JP 12857692A JP 12857692 A JP12857692 A JP 12857692A JP 3178480 B2 JP3178480 B2 JP 3178480B2
Authority
JP
Japan
Prior art keywords
cellular concrete
lightweight cellular
manufacturing
alc
mortar
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 - Fee Related
Application number
JP12857692A
Other languages
Japanese (ja)
Other versions
JPH05319951A (en
Inventor
信弥 斎藤
祐二 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Corp
Original Assignee
Asahi Kasei Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Kasei Corp filed Critical Asahi Kasei Corp
Priority to JP12857692A priority Critical patent/JP3178480B2/en
Publication of JPH05319951A publication Critical patent/JPH05319951A/en
Application granted granted Critical
Publication of JP3178480B2 publication Critical patent/JP3178480B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】この発明は軽量気泡コンクリート
（以下ＡＬＣという）の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing lightweight cellular concrete (hereinafter referred to as ALC).

【０００２】[0002]

【発明が解決しようとする課題】ＡＬＣは建築材料とし
て多くの長所を有するが、吸水速度が早い欠点がある。Although ALC has many advantages as a building material, it suffers from a high water absorption rate.

【０００３】この欠点を改善するために一般に撥水性を
付与している。従来、撥水性を付与するためには、珪酸
質材料、石灰質材料を主成分とする水硬性スラリーのモ
ルタル原料に鎖状構造をしたポリジメチルシロキサン
（ＤＭＳ）を添加していた。しかし、ＤＭＳはモルタル
に比較して極めて高価であり、かつ、比較的に粘度が高
く、分散性が悪く、分散に手間がかかる欠点があった。[0003] To remedy this drawback, water repellency is generally provided. Conventionally, in order to impart water repellency, polydimethylsiloxane (DMS) having a chain structure was added to a mortar raw material of a hydraulic slurry mainly composed of a siliceous material and a calcareous material. However, DMS is disadvantageous in that it is extremely expensive compared to mortar, has relatively high viscosity, is poor in dispersibility, and requires much time for dispersion.

【０００４】この発明は上記問題点の解消を図ったもの
であり、その目的は、従来のＤＭＳに比べ、使用する撥
水剤が低コストであり、かつ、粘度が低く分散性がよ
く、製造上の利点が多いＡＬＣの製造方法を提案するに
ある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object the advantage that a water repellent to be used is lower in cost, lower in viscosity and better in dispersibility than conventional DMS. An object of the present invention is to propose a method of manufacturing ALC having many of the above advantages.

【０００５】[0005]

【課題を解決するための手段】このＡＬＣの製造方法
は、珪酸質材料、石灰質材料を主成分とするモルタルを
原料とするＡＬＣの製造方法において、常温で液状の環
状ジメチルシロキサンを原料モルタルに添加し撥水性を
付与することを特徴とする。According to this method for producing ALC, a cyclic dimethylsiloxane liquid at room temperature is added to a raw material mortar in a method for producing an ALC using a mortar mainly composed of a siliceous material or a calcareous material as a raw material. It is characterized by imparting water repellency.

【０００６】この製造方法で用いる環状ジメチルシロキ
サンとしては、常温で液状を呈する４員環以上のもので
あり、具体的には、テトラシクロジメチルシロキサン、
ペンタシクロジメチルシロキサン、ヘキサシクロジメチ
ルシロキサンなどである。その添加量はＡＬＣ固形分に
対し約0.１〜2.０重量％である。なおトリシクロジメチ
ルシロキサンは常温で固体を呈し好ましくない。[0006] The cyclic dimethylsiloxane used in this production method is a four- or more-membered ring which is in a liquid state at normal temperature.
Pentacyclodimethylsiloxane, hexacyclodimethylsiloxane, and the like. The addition amount is about 0.1 to 2.0% by weight based on the ALC solid content. Tricyclodimethylsiloxane is not preferable because it shows a solid at normal temperature.

【０００７】[0007]

【実施例】珪石４2.０％、ポルトランドセメント３2.０
％、生石灰6.０％、石膏2.０％、ＡＬＣ解砕屑１８％に
調合水を加えて混合して得られた原料モルタルに、環状
ジメチルシロキサンを添加し、さらにアルミニウム粉末
を加え、型枠に注入し発泡せしめた後、オートクレーブ
中にて１８０℃、８hr養生した。得られたＡＬＣの一面
吸水率は第１表の通りであった。なお、実施例と同時に
撥水剤無添加およびＤＭＳ添加の比較を行なった。[Example] Silica 42.0%, Portland cement 32.0
%, Quick lime 6.0%, gypsum 2.0%, and ALC crushed debris 18%, mixed water was added to the raw material mortar, and cyclic dimethylsiloxane was added. The mixture was foamed and cured in an autoclave at 180 ° C. for 8 hours. The water absorption on one side of the obtained ALC was as shown in Table 1. At the same time as the examples, comparison was made between the addition of a water repellent and the addition of DMS.

【０００８】[0008]

【表１】 [Table 1]

【０００９】＊一面吸水率の測定方法：１０cm×１０cm
×１０cmのＡＬＣ試料 を水面下２cmに２４hr浸漬した時の吸 率。* Method of measuring water absorption on one side: 10 cm × 10 cm
The absorption when a 10 cm ALC sample was immersed 2 cm below the water surface for 24 hours.

【００１０】[0010]

【発明の効果】このＡＬＣの製造方法は以上の通りであ
り、次の効果を奏する。The method of manufacturing the ALC is as described above, and has the following effects.

【００１１】環状ジメチルシロキサンはＤＭＳに比べ、
安価であってコスト低減を図ることができ、低粘度
で分散性が優れている。また、ＤＭＳと同等あるいは
それに近い撥水性能を発揮できる。[0011] Cyclic dimethylsiloxane is different from DMS in that
It is inexpensive and can reduce cost, and has low viscosity and excellent dispersibility. In addition, water repellency equivalent to or close to DMS can be exhibited.

【００１２】[0012]

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ０４Ｂ 18:16 22:14 24:40） ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI C04B 18:16 22:14 24:40)

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 珪酸質材料、石灰質材料を主成分とする
モルタルを原料とする軽量気泡コンクリートの製造方法
において、常温で液状の環状ジメチルシロキサンを原料
モルタルに添加し撥水性を付与することを特徴とする軽
量気泡コンクリートの製造方法。1. A method for producing lightweight cellular concrete using a mortar mainly composed of a siliceous material or a calcareous material as a raw material, characterized by adding a cyclic dimethylsiloxane liquid at room temperature to the raw material mortar to impart water repellency. Method for producing lightweight cellular concrete.
JP12857692A 1992-05-21 1992-05-21 Manufacturing method of lightweight cellular concrete Expired - Fee Related JP3178480B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12857692A JP3178480B2 (en) 1992-05-21 1992-05-21 Manufacturing method of lightweight cellular concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12857692A JP3178480B2 (en) 1992-05-21 1992-05-21 Manufacturing method of lightweight cellular concrete

Publications (2)

Publication Number Publication Date
JPH05319951A JPH05319951A (en) 1993-12-03
JP3178480B2 true JP3178480B2 (en) 2001-06-18

Family

ID=14988172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12857692A Expired - Fee Related JP3178480B2 (en) 1992-05-21 1992-05-21 Manufacturing method of lightweight cellular concrete

Country Status (1)

Country Link
JP (1) JP3178480B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101166792B1 (en) 2012-01-26 2012-07-26 (주)옥련건설 Restroative mortar compositions for cross section restorations and repairing method of reinforced concrete using that

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5873411B2 (en) * 2012-09-26 2016-03-01 株式会社ジーシー Dental gypsum investment material powder
JP2014189536A (en) * 2013-03-28 2014-10-06 Gc Corp Dental gypsum powder
WO2017184231A1 (en) 2016-04-20 2017-10-26 Dow Corning Corporation Lithium alkylsiliconate composition, coating, and method of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101166792B1 (en) 2012-01-26 2012-07-26 (주)옥련건설 Restroative mortar compositions for cross section restorations and repairing method of reinforced concrete using that

Also Published As

Publication number Publication date
JPH05319951A (en) 1993-12-03

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