粉煤灰／膨润土-聚丙烯酸盐聚合化学固沙材料的研究

文章利用粉煤灰／膨润土一聚丙烯酸盐聚合研制了一种化学固沙材料，通过大量的实验研究，确定了该固沙材料的最优配比，粉煤灰、膨润土和水玻璃的含量分别为60％、32％和16％，此条件下的固沙材料抗压强度及吸水、保水能力最佳。综合考虑到抗压强度、吸水率、失水率和经济成本，最佳配比确定为：粉煤灰、膨润土、水玻璃、聚丙烯酰胺与聚乙烯醇分别为50．4％、33．6％、8％、3％和5％，经核算每千克化学固沙剂的成本3．6元，说明了该固沙材料固沙的可行性及经济性。探讨了该膨润土粉煤灰水玻璃的固结机理、化学固沙机理及化学固沙材料的应用。

The Study about the Solidifying-Sand Materials with the Fly Ash and Bentonite by Polyacrylate Polymerizing

This experiment was about the solidfying-sand materials with the fly ash and bentonite by polyacrylate polymerizing.By a great deal of experiments we found the optimal ratio of solid sand material was that the fly ash was 60%,the bentonite was 32% and the water glass was 16%,and in that condition compression strength,water absorbing capacity and water holding capacity of the solidfying-sand materials were the best.Considering compression strength,water absorbing rate,water water losing rate and economic cos...