Novel autoclaved aerated concrete plate reinforcement preservative and preparation method thereof: Fid-Bau Portal

Novel autoclaved aerated concrete plate reinforcement preservative and preparation method thereof

SI ZHENGKAI / LI NING / ZHANG MENG'AN / YAO JUNWEI / DUAN XINGZE / WANG ZHAN / LI SHUAIYANG / LI YANG / CAO LINFANG / JIANG HUI

Abstract

The invention discloses a novel autoclaved aerated concrete plate reinforcement preservative and a preparation method of the novel autoclaved aerated concrete plate reinforcement preservative. The novel autoclaved aerated concrete plate reinforcement preservative comprises the following components in mass percent: 45%-55% of carboxylic butadiene-styrene latex, 1.0%-2.0% of iron oxide red, 2.5%-4%of cement, 30%-40% of a thickening agent, 2.5%-4.5% of silica fume, 3.5%-4.5% of a defoaming agent and 0.1%-0.5% of a dispersing agent. Sodium tripolyphosphate is used as a dispersing agent, hydroxypropyl methyl cellulose ether is used as a thickening agent, the problems that a common thickening agent is difficult to dissolve in water and difficult to stir evenly are solved, the preparation time of the preservative is shortened, the compactness of a steel bar coating is guaranteed, and the binding power between the preservative and a steel bar is improved; and silica fume is used for replacingtraditional quartz sand, and a dispersing agent is added, so that the problem of preservative layering is effectively solved, and the uniformity of preservatives is guaranteed.

本发明公开一种新型蒸压加气混凝土板材配筋防腐剂及其制备方法，一种新型蒸压加气混凝土板材配筋防腐剂以质量百分比计，包括羧基丁苯胶乳45％‑55％、氧化铁红1.0％‑2.0％、水泥2.5％‑4％、增稠剂30％‑40％、硅灰2.5％‑4.5％、消泡剂3.5％‑4.5％、分散剂0.1％‑0.5％。本发明以三聚磷酸钠为分散剂，以羟丙基甲基纤维素醚为增稠剂，解决了普通增稠剂难溶于水、不易搅拌均匀的特性，缩短了防腐剂的制备时间，保证钢筋涂层的密实度，提高了防腐剂与钢筋之间的粘结力，而且在使用硅灰代替传统石英砂并加入分散剂，有效解决了防腐剂分层问题，保证了防腐剂的均一性。

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