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众所周知,以石灰做激发剂或固化剂的硅酸盐材料,大多采用蒸汽固化处理,以保证硅酸盐水化反应所必须的水热条件.近年来,国内外所研制的不烧红壤砖,当以石灰做固化剂时,也大多采用蒸汽固化,即使有采用太阳能固化方式的,其固化温度也在60℃以上.用蒸汽进行固化处理,燃料消耗仍然较大,且对降低成本不利;用太阳能进行固化处理,虽然不消耗燃料,但现阶段太阳能装置费用较高.这些,都在一定程度上影响了石灰固化粘土制品的推广应用.难怪有的同志曾经断言,不烧粘土制品,只有解决了用石灰做固化剂和常温自然固化这两个先决条件
It is well-known that most of the silicate materials that use lime as the activator or curing agent are steam-cured to ensure the hydrothermal conditions necessary for the silicate hydration reaction. In recent years, non-fired red clay bricks have been developed at home and abroad. When lime is used as a curing agent, most of them are steam-cured. Even if solar curing is used, the curing temperature is above 60° C. Curing with steam, the fuel consumption is still large, and the cost is disadvantageous; Although solar energy is used for curing, it does not consume fuel, but at this stage, the cost of solar installations is relatively high. All these have affected the promotion and application of lime-cured clay products to a certain extent. It is no wonder that some comrades once asserted that they would not burn clay products, but only solve them. The two prerequisites for using lime as curing agent and natural curing at room temperature