期刊论文

中文

武汉轻工大学学报

2095-7386

2015

34

1

58-61

10.3969/j.issn.2095-7386.2015.01.014

本校为第一机构

针对固化污泥开裂及收缩量大的特性，以生石灰，水泥，粘土及聚丙烯纤维为补强材料，对市政污泥进行固化研究，来探索黏土及聚丙烯纤维在固化中的作用机理。其中生石灰可用作减水剂；水泥作为胶凝材料；黏土粒径小，可提高污泥固化物的密实度；聚丙烯纤维在固化体中起到连接搭接的作用，分析了聚丙烯纤维在抗裂抗收缩的作用及黏土间接抗裂抗收缩的机理。结果表明：污泥固化体的体积在养护中逐渐减小，且随纤维含量的增加，体积收缩会变小，黏土在固化体养护中有阻止水蒸气排出的作用，从而减小早期收缩应力，间接阻止开裂，加入纤维越多，固化体内外能更好的连接成一片整体，将外部收缩应力通过...

According to the characteristics of large amount of sludge solidification cracking and shrinkage,with lime cement,clay and polypropylene fiber as reinforcing material,municipal sludge solidification is study,to explore the role of the clay and polypropylene fiber in curing mechanism. The lime can be used as water reducing agent; Cement as cementing material; clay particle small,which can improve the compactness of sludge is cured; Polypropylene fiber plays a role of connecting the lap in the solidified body,and the polypropylene fibers on crack resistance of shrinkage and the effect of clay in...