发泡剂对淤泥固化性能的影响研究  

Study on the effect of foaming agent on the solidification performance of silt

作　　者：邓琪丰 刘卫东[1] 韩云婷 DENG Qifeng;LIU Weidong;HAN Yunting(University of Shanghai for Science and Technology,Shanghai 200093,China;Shanghai Research Institute of Building Sciences,Shanghai 201108,China)

机构地区：[1]上海理工大学,上海200093 [2]上海市建筑科学研究院有限公司,上海201108

出　　处：《新型建筑材料》2022年第7期138-143,共6页New Building Materials

摘　　要：研究了发泡剂种类及掺量对淤泥固化土固化性能的影响。试验结果表明,双氧水和蛋白型发泡剂适用于淤泥固化土发泡,发泡剂掺量增加会降低固化土的抗压强度和干密度、提高孔隙率;双氧水的最佳掺量为0.6%,此时固化土的孔隙率为47.91%、7 d抗压强度为0.821 MPa;蛋白型发泡剂的最佳掺量为0.1%,此时固化土的孔隙率为51.13%,7 d抗压强度为0.895 MPa;双氧水与蛋白型发泡剂对比,后者生产的泡沫更为细腻绵密,对增大固化土的孔隙率更为有利。This paper mainly studies the effect of foaming agent on the solidification performance of silt solidified soil.It is found that hydrogen peroxide and protein foaming agent are suitable for foaming of sludge solidified soil,and the increase of foaming agent content will reduce the compressive strength and dry density of solidified soil,and increase the porosity.The optimum content of hydrogen peroxide is 0.6%,the porosity is increased to 47.91%,and the 7 d compressive strength is 0.821 MPa.The optimum content of protein foaming agent is 0.1%,the porosity is increased to 51.13%,and the 7 d compressive strength is 0.895 MPa.Compared with the two foaming agents,the foam produced by the latter is more delicate,and is more beneficial to enhance the porosity of solidified soil.

关 键 词：淤泥 固化土 发泡剂 孔隙率 抗压强度 

分 类 号：TU528.042.4[建筑科学—建筑技术科学]