十二烷基磺酸钠与聚乙烯醇固化黏土的研究  

Study on the Solidification of Clay with Sodium Dodecyl Sulfonate and Polyvinyl Alcohol

作　　者：徐辉 王兴阵[2] XU Hui;WANG Xingzhen(School of Architecture and Civil Engineering,West Anhui University,Lu′an 237012,China;School of Earth and Environment,Anhui University of Science&Technology,Huainan 232001,China)

机构地区：[1]皖西学院建筑与土木工程学院,安徽六安237012 [2]安徽理工大学地球与环境学院,安徽淮南232001

出　　处：《宿州学院学报》2024年第3期15-21,共7页Journal of Suzhou University

基　　金：皖西学院自然重点项目(WXZR201930)。

摘　　要：以十二烷基磺酸钠(SDS)作为离子活化剂,聚乙烯醇(PVA)作为黏结剂,对六安本地黏土进行适配性试验。将SDS与PVA质量比为1∶4、1∶2、1∶1、2∶1、4∶1混合物分别稀释至1∶50、1∶100、1∶200、1∶300,每种浓度稀释液与六安黏土进行固化,分别对各个龄期的固化土进行无侧限抗压强度(UCS)试验。试验结果表明,随着固化剂浓度的增加,六安黏土UCS值先逐渐增加然后逐渐减少。最后,对SDS和PVA固化的六安黏土的物理和化学性质进行研究,研究结果表明,SDS和PVA适宜固化六安本地黏土,能够满足本地路基工程使用要求。The suitability test of the local clay in Lu′an was carried out by using sodium dodecyl sulfonate(SDS)as the ionic activator and polyvinyl alcohol(PVA)as the binder.The mixture of SDS and PVA with mass ratio of 1∶4,1∶2,1∶1,2∶1 and 4∶1 was diluted to 1∶50,1∶100,1∶200 and 1∶300,respectively,and each concentration diluent was solidified and compacted with Lu′an clay.The unconfined compressive strength(UCS)test was conducted on the solidified soil at each age.The test results showed that the UCS value of Lu′an clay first gradually increased and then gradually decreased with the increase of curing agent concentration.Finally,the physical and chemical properties of Lu′an clay solidified by SDS and PVA were studied by electrochemical,colloidal and physicochemical reaction mechanism.The results showed that SDS and PVA were suitable for curing local clay in Lu′an and could meet the requirements of local roadbed engineering.

关 键 词：固化剂 十二烷基磺酸钠 聚乙烯醇 无侧限抗压强度 

分 类 号：TU411.3[建筑科学—岩土工程]