Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aerated concrete block and preparation method thereof
The invention relates to the technical field of aerated concrete blocks, and discloses an aerated concrete block, which comprises the following components by weight: 2000-2100 parts of slurry, 240-250parts of cement powder, 200-220 parts of lime, 1-2 parts of aluminum powder, and a shrinkage reducing agent, wherein the shrinkage reducing agent is prepared from 8 to 12 parts of polyoxyethylene ether and pentaerythritol, the slurry comprises sand and water, and the sand accounts for 55-60%. The aerated concrete block of the invention has the following advantages that when polyoxyethylene etheris doped into an aqueous solution, the polyoxyethylene ether can be enriched at a gas-liquid two-phase interface so as to reduce the surface tension of concrete pore water and reduce the self-shrinkage and the drying shrinkage; pentaerythritol can be compounded with the polyoxyethylene ether to generate a synergistic effect, so that the surface tension of the compounded shrinkage reducing agent islow so as to enhance the shrinkage reducing effect of the shrinkage reducing agent and improve the crack resistance of the concrete block; and by using zinc ricinoleate, gases such as formaldehyde, ammonia gas, hydrogen sulfide and the like can be removed so as to achieve environmental protection.
本发明涉及加气砌块的技术领域，公开了一种加气混凝土砌块，包括如下重量份的组分：料浆2000‑2100份；水泥粉240‑250份；石灰200‑220份；铝粉1‑2份；减缩剂；所述减缩剂包括总量为8‑12份的聚氧乙烯醚和季戊四醇；所述料浆包括沙子和水，所述沙子占比55‑60%。本发明具有以下优点和效果：聚氧乙烯醚掺入到水溶液中时会在气‑液两相界面处富集而降低混凝土孔隙水的表面张力，降低自收缩和干燥收缩；季戊四醇可与聚氧乙烯醚复配产生协同作用，使复合后减缩剂的表面张力更小，由此增强减缩剂的减缩效果，提高混凝土砌块的抗裂性能；还采用了蓖麻油酸锌，可去除甲醛、氨气和硫化氢等气体，更环保。
Aerated concrete block and preparation method thereof
The invention relates to the technical field of aerated concrete blocks, and discloses an aerated concrete block, which comprises the following components by weight: 2000-2100 parts of slurry, 240-250parts of cement powder, 200-220 parts of lime, 1-2 parts of aluminum powder, and a shrinkage reducing agent, wherein the shrinkage reducing agent is prepared from 8 to 12 parts of polyoxyethylene ether and pentaerythritol, the slurry comprises sand and water, and the sand accounts for 55-60%. The aerated concrete block of the invention has the following advantages that when polyoxyethylene etheris doped into an aqueous solution, the polyoxyethylene ether can be enriched at a gas-liquid two-phase interface so as to reduce the surface tension of concrete pore water and reduce the self-shrinkage and the drying shrinkage; pentaerythritol can be compounded with the polyoxyethylene ether to generate a synergistic effect, so that the surface tension of the compounded shrinkage reducing agent islow so as to enhance the shrinkage reducing effect of the shrinkage reducing agent and improve the crack resistance of the concrete block; and by using zinc ricinoleate, gases such as formaldehyde, ammonia gas, hydrogen sulfide and the like can be removed so as to achieve environmental protection.
本发明涉及加气砌块的技术领域，公开了一种加气混凝土砌块，包括如下重量份的组分：料浆2000‑2100份；水泥粉240‑250份；石灰200‑220份；铝粉1‑2份；减缩剂；所述减缩剂包括总量为8‑12份的聚氧乙烯醚和季戊四醇；所述料浆包括沙子和水，所述沙子占比55‑60%。本发明具有以下优点和效果：聚氧乙烯醚掺入到水溶液中时会在气‑液两相界面处富集而降低混凝土孔隙水的表面张力，降低自收缩和干燥收缩；季戊四醇可与聚氧乙烯醚复配产生协同作用，使复合后减缩剂的表面张力更小，由此增强减缩剂的减缩效果，提高混凝土砌块的抗裂性能；还采用了蓖麻油酸锌，可去除甲醛、氨气和硫化氢等气体，更环保。
Aerated concrete block and preparation method thereof
一种加气混凝土砌块及其制备方法
ZHANG GUANGSEN (Autor:in) / CHEN XIANGJIE (Autor:in) / SHAO WEIDONG (Autor:in) / XIANG GUANGBIN (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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