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发明公开
CN105175003A 一种无石灰粉煤灰蒸压加气混凝土及其制备方法 无效 - 撤回

一种无石灰粉煤灰蒸压加气混凝土及其制备方法
摘要：
本发明涉及一种无石灰粉煤灰蒸压加气混凝土及其制备方法，该加气混凝土由干料和辅料制成，其中，干料由下述重量百分比的组分组成：粉煤灰40～50%，普通水泥20～40%，脱硫石膏5～20%，熟石膏0～5%，余量为废料，所述废料为蒸压加气混凝土砌块生产过程中切割产生的下角料；辅料包括NaCO3、铝粉膏、稳泡剂和减水剂；NaCO3占干料重量的0.15～0.25%，铝粉膏占干料重量的0.08～0.12%，稳泡剂占干料重量的0.02～0.03%，减水剂占干料重量的0.03～0.05%。该加气混凝土原料中不包括石灰，消纳大量固废，减少成本的同时，各项技术指标均能达到国标要求。
摘要（英）：

The invention relates to non-lime fly ash autoclaved aerated concrete and a preparation method thereof. The aerated concrete is prepared from a dry material and an auxiliary material, wherein the dry material is composed of the following compositions in percentage by weight: 40-50% of fly ash, 20-40% of Portland cement, 5-20% of desulfurization gypsum, 0-5% of calcined gypsum, and the balance of wastes, and the wastes are offal produced by cutting in the production process of autoclaved aerated concrete blocks; and the auxiliary material comprises the following compositions in percentage by weight: 0.15-0.25% of NaCO3, 0.08-0.12% of aluminum paste, 0.02-0.03% of a foam stabilizer, and 0.03-0.05% of a water reducing agent. The aerated concrete does not include lime, so that a large amount of solid wastes are consumed, therefore, various technical indexes can meet the national standard requirements while the cost is reduced.

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