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本文介绍了一种新型高性能混凝土膨胀剂HCSA,具有膨胀能高、膨胀快、绝湿膨胀大、膨胀性能稳定的特点。该膨胀剂的主要矿物成分是是、CaSO4和CaO。其限制膨胀率是市售UEA膨胀剂的3倍。绝湿情况下限制膨胀率值约是水中的82%。在众多取消外防水的地下工程中应用,取得良好的抗裂防渗效果,是一种混凝土结构自防水理想材料。
In this paper, a new type of high performance concrete expander HCSA is introduced, which has the characteristics of high expansion energy, rapid expansion, large moisture expansion, and stable expansion performance. The main mineral components of this expander are CaSO4 and CaO. Its limiting expansion rate is three times that of the commercial UEA expander. Limit swell under the condition of the expansion rate of about 82% of water. In many cancel the application of external waterproofing underground engineering, and achieved good anti-cracking anti-seepage effect, is a self-waterproof concrete structure ideal material.