固化水库底泥制备人工骨料及其性能研究  

Preparation of Artificial Aggregates from Solidified Reservoir Sediment and its Performance Research

作　　者：李彦苍[1] 褚清涛 王育德[1] 靳子栋 乔威涛 LI Yan-cang;CHU Qing-tao;WANG Yu-de;JIN Zi-dong;QIAO Wei-tao(School of Civil Engineering,Hebei Engineering University,Handan 056038,Hebei Province,China;Jizhong Energy Fengfeng Group Co.,Ltd,Handan 056038,Hebei Province,China)

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038 [2]冀中能源峰峰集团有限公司,河北邯郸056038

出　　处：《中国农村水利水电》2025年第1期8-15,共8页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(52278171);河北省自然科学基金项目(E2020402079)。

摘　　要：水库底泥中含有大量无机质,经过处理后,可以用底泥生产建筑材料。采用固化剂固化水库底泥制备人工骨料,通过正交实验研究固化剂的最优掺量(固化剂的掺量以水库底泥的掺量为基准),其结果为:硅酸钠8%、石膏6%、聚羧酸高效减水剂3%、三乙醇胺0.05%(下文简称为SRPT)。然后,掺入最优SRPT作为附加固化剂制备出人工骨料并探究其性能。结果表明:掺入最优SRPT组骨料的筒压强度最大为7.31 MPa,相比于不掺固化剂组提升了44.2%,1 h吸水率为9.34%,堆积密度为937 kg/m^(3)。用SRPT固化剂固化水库底泥制备人工骨料可以高价值利用水库底泥,并且制备的骨料满足规范要求,研究成果为水库底泥在水利工程中的利用提供了新思路。Reservoir sediment contains a large amount of inorganic matter.After treatment,it can be used to produce building materials.This article uses a curing agent to solidify reservoir sediment and prepare artificial aggregates.The optimal dosage of the curing agent is studied through orthogonal experiments(the dosage of the curing agent is based on the dosage of the reservoir sediment).The results are:8%sodium silicate,6%gypsum,3%polycarboxylate superplasticizer,and 0.05%triethanolamine(hereinafter referred to as SRPT).Then,the optimal SRPT was added as an additional curing agent to prepare artificial aggregates and their performance were investigated.The results show that the maximum compressive strength of the aggregate with the optimal SRPT group added is 7.31 MPa,which is 44.2%higher than that of the group without curing agent.The 1-hour water absorption rate is 9.34%,and the bulk density is 937 kg/m^(3).This article uses SRPT curing agent to solidify reservoir sediment and prepare artificial aggregates,which can make high-value use of reservoir sediment and meet the regulatory requirements.The research results provide new ideas for the utilization of reservoir sediment in hydraulic engineering.

关 键 词：人工骨料 水库底泥 固化剂 正交实验 筒压强度 水利工程 

分 类 号：TU526[建筑科学—建筑技术科学] X524[环境科学与工程—环境工程]