纳米抗裂外加剂关键技术在抽水蓄能电站堆石坝面板混凝土配合比优化试验研究中的应用  

Application of key technology of Nano crack-resistant admixture in the optimization experimental study of concrete mix design for the face slab of rockfill dams in pumped storage power stations

作　　者：李学平 赵志方[2] 蔡勇 LI Xueping;ZHAO Zhifang;CAI Yong(China Gezhouba Group International Engineering Co.,Ltd.,Beijing 100020,China;College of Civil Engineering,Zhejiang University of Technology,Hangzhou 310023,China;China Gezhouba Group Three Gorges Construction Engineering Co.,Ltd.,Yichang 443002,China)

机构地区：[1]中国葛洲坝集团国际工程有限公司,北京100020 [2]浙江工业大学土木工程学院,浙江杭州310023 [3]中国葛洲坝集团三峡建设工程有限公司,湖北宜昌443002

出　　处：《水利建设与管理》2025年第3期24-33,共10页Water Conservancy Construction and Management

基　　金：国家自然科学基金资助项目(52279142,51879235)。

摘　　要：钢筋混凝土面板堆石坝面板的防渗性能对于确保坝体的稳定和安全具有重要意义。本研究旨在探讨钢筋混凝土面板堆石坝混凝土纳米抗裂外加剂关键技术,通过综合分析和总结国际纳米外加剂的应用经验和成果,探讨如何优化钢筋混凝土面板堆石坝面板混凝土配合比,并详细介绍试验程序和方法。通过将抽水蓄能电站面板堆石坝混凝土不同外加剂进行对比试验分析,总结了纳米抗裂外加剂对改善面板混凝土抗裂性能的优势和缺点,以期打造全寿命期极少裂缝的纳米堆石坝混凝土面板。The impermeability of the reinforced concrete face slab of rockfill dams is crucial for ensuring the stability and safety of the dam structure.This study aims to explore the key technology of concrete nano crack-resistant admixtures for reinforced concrete face slabs of rockfill dams.By comprehensively analyzing and summarizing the international application experiences and achievements of nano admixtures,the study investigates how to optimize the concrete mix design for the face slabs of rockfill dams and details the experimental procedures and methods.Through comparative experimental analysis of different admixtures used in the concrete of pumped storage power station face slabs,the advantages and disadvantages of nano crack-resistant admixtures in improving the crack resistance of the face slab concrete are summarized.The goal is to develop a nano rockfill dam concrete face slab with minimal cracking throughout its service life.

关 键 词：堆石坝 面板混凝土 纳米抗裂外加剂 配合比优化 试验研究 

分 类 号：TV641.43[水利工程—水利水电工程]