A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses high-strength aerated concrete and a preparation method thereof. The high-strength aerated concrete is prepared from the following raw materials in parts by weight: 40 to 60 parts of modified red sandstone, 15 to 23 parts of cement, 13 to 19 parts of lime, 1 to 7 parts of gypsum, 0.1 to 0.5 part of aluminum powder, 0.5 to 2 parts of sodium hydroxide, 0.3 to 0.9 part of a polycarboxylic acid water reducing agent and 70 to 80 parts of water, wherein the modified red sandstone is prepared by reacting natural red sandstone, polyvinyl alcohol, an enhancer prepared by mixingfluosilicate and sodium methyl silicate, and lactic acid. The polyvinyl alcohol, the enhancer and the lactic acid are used for modifying the natural red sandstone, so that the problems that the red sandstone is easy to soften after absorbing water and the concrete strength is reduced can be effectively solved. The aerated concrete prepared by the preparation method has the characteristics of highcompressive strength and low dry density.
本发明公开了一种高强度加气混凝土及其制备方法。高强度加气混凝土包括以下原料，按重量份数计，改性红砂岩40～60份、水泥15～23份、石灰13～19份、石膏1～7份、铝粉0.1～0.5份、氢氧化钠0.5～2份、聚羧酸类减水剂0.3～0.9份，水70～80份。其中改性红砂岩由天然红砂岩、聚乙烯醇、氟硅酸盐和甲基硅酸钠混配制得的强化剂、乳酸反应制得。利用聚乙烯醇、强化剂、乳酸对天然红砂岩改性，可有效解决了红砂岩吸水后易发生软化，降低混凝土强度的问题。本发明制备的加气混凝土具有抗压强度高、干密度低的特点。
The invention discloses high-strength aerated concrete and a preparation method thereof. The high-strength aerated concrete is prepared from the following raw materials in parts by weight: 40 to 60 parts of modified red sandstone, 15 to 23 parts of cement, 13 to 19 parts of lime, 1 to 7 parts of gypsum, 0.1 to 0.5 part of aluminum powder, 0.5 to 2 parts of sodium hydroxide, 0.3 to 0.9 part of a polycarboxylic acid water reducing agent and 70 to 80 parts of water, wherein the modified red sandstone is prepared by reacting natural red sandstone, polyvinyl alcohol, an enhancer prepared by mixingfluosilicate and sodium methyl silicate, and lactic acid. The polyvinyl alcohol, the enhancer and the lactic acid are used for modifying the natural red sandstone, so that the problems that the red sandstone is easy to soften after absorbing water and the concrete strength is reduced can be effectively solved. The aerated concrete prepared by the preparation method has the characteristics of highcompressive strength and low dry density.
本发明公开了一种高强度加气混凝土及其制备方法。高强度加气混凝土包括以下原料，按重量份数计，改性红砂岩40～60份、水泥15～23份、石灰13～19份、石膏1～7份、铝粉0.1～0.5份、氢氧化钠0.5～2份、聚羧酸类减水剂0.3～0.9份，水70～80份。其中改性红砂岩由天然红砂岩、聚乙烯醇、氟硅酸盐和甲基硅酸钠混配制得的强化剂、乳酸反应制得。利用聚乙烯醇、强化剂、乳酸对天然红砂岩改性，可有效解决了红砂岩吸水后易发生软化，降低混凝土强度的问题。本发明制备的加气混凝土具有抗压强度高、干密度低的特点。
High-strength aerated concrete and preparation method thereof
一种高强度加气混凝土及其制备方法
MA ZHIBO (author)
2020-12-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
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