刚性填埋场中混凝土基本性能和耐化学介质影响研究  

Research on the Basic Properties and Chemical Resistance of Concrete in Rigid Landfill Sites

作　　者：谭文超 闫亚楠 杨金娣 Tan Wenchao;Yan Yanan;Yang Jindi(Power China Guiyang Engineering Corporation Limited,Guiyang 550081,China)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《广东化工》2023年第24期92-96,共5页Guangdong Chemical Industry

基　　金：贵州省科技计划项目(黔科合支撑[2020]4Y024号)。

摘　　要：根据刚性填埋场所处的地理位置、气候条件和使用特点,通常选择高性能混凝土。本文采用高掺粉煤灰、双掺粉煤灰和硅粉等方案进行C30高性能混凝土配合比试验,对混凝土的力学性能、干缩性能、热学性能、耐化学介质进行试验,并对结果进行对比分析。通过室内试验结果,综合考虑工程建设周期、填埋场渗漏问题、防介质腐蚀等因素,建议优先采用单掺50%粉煤灰混凝土配合比进行施工。According to the geographical location,climatic conditions,and usage characteristics of rigid landfill sites,high-performance concrete is usually chosen.This article uses schemes such as high fly ash,double fly ash,and silicon powder to conduct C30 high-performance concrete mix ratio tests.The mechanical properties,dry shrinkage performance,thermal properties,and chemical resistance of the concrete are tested,and the results are compared and analyzed.Based on indoor test results and considering factors such as construction period,landfill leakage,and medium corrosion prevention,it is recommended to prioritize the use of a single 50%fly ash concrete mix ratio for construction.

关 键 词：刚性填埋场 混凝土 干缩性能 热学性能 耐化学介质 

分 类 号：TU528.2[建筑科学—建筑技术科学]