刚性填埋场中混凝土耐化学介质及变形防渗性能研究  

Study on Chemical Medium Resistance and Deformation Impermeability of Concrete in Rigid Landfill

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：《云南化工》2024年第4期54-58,共5页Yunnan Chemical Technology

基　　金：贵州省科技计划项目(黔科合支撑[2020]4Y024号);中国电力建设股份有限公司科技项目(DJ-ZDXM-2019-44)。

摘　　要：刚性填埋场建设根据所处的地理位置、气候条件和使用特点,通常选择高性能混凝土。通过采用高掺粉煤灰、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,对混凝土的耐化学介质、自生体积变形及防渗性能进行试验,并对结果进行对比分析。室内试验结果表明,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。High performance concrete is usually selected for construction of rigid landfill according to its geographical location,climatic conditions and service characteristics.In this paper,the mix proportion of C30 high performance concrete is tested by high fly ash,double fly ash and silica fume,and the chemical medium resistance,autogenous volume deformation and impermeability of concrete are tested,and carry on the contrast analysis to the result.Based on the results of indoor test,considering the factors such as construction period,leakage of landfill site and anti-corrosion of medium,it is suggested that the mixture ratio of 50%fly ash concrete should be adopted in construction.

关 键 词：刚性填埋场 混凝土 耐化学介质 自生体积变形 防渗性能 

分 类 号：TU528.2[建筑科学—建筑技术科学]