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以浙江台州淤泥质黏土为研究对象,在掺入水泥、生石灰、粉煤灰的基础上添加聚丙烯酰胺,对重塑黏土、不加聚丙烯酰胺、加聚丙烯酰胺重塑黏土试样进行扫描电镜观测,研究聚丙烯酰胺结合无机材料对淤泥质黏土孔隙结构的影响。最后利用计算机图像处理技术,研究了固化剂对淤泥质黏土孔隙结构的改变。研究结果表明,经固化剂加固后的黏土颗粒间胶结联结加强,结构稳定性提高。最后采用MATLAB对图像中孔隙总面积,总周长等参数进行定量分析。分析发现:淤泥质黏土的天然孔隙比、不加聚丙烯酰胺重塑土的孔隙比、加聚丙烯酰胺重塑土的孔隙比依次递减,从而得出聚丙烯酰胺与无机材料结合比单加无机材料作为固化剂对淤泥的加固效果有一定程度的提高。
Taking Taizhou clay mud in Zhejiang as the research object, polyacrylamide was added on the basis of cement, quicklime and fly ash, and the samples of the remolded clay without polyacrylamide and polyacrylamide modified clay were scanned The effects of polyacrylamide and inorganic materials on the pore structure of silty clay were investigated by SEM. Finally, the use of computer image processing technology to study the curing agent on the changes in the pore structure of silty clay. The results show that the clay particles strengthened by the curing agent strengthen the bond between the particles and the structural stability is improved. Finally, the quantitative analysis of the total pore area, total circumference and other parameters using MATLAB. The results showed that the porosity ratio of mucilaginous clay, void ratio without polyacrylamide remineralized soil and void ratio with polyacrylamide remineralized soil decreased in turn, which indicated that the combination of polyacrylamide with inorganic material Materials as a curing agent on the reinforcement effect of the sludge to a certain extent.