矿物掺合料对水工高性能抗冲磨混凝土特性的影响研究  

Study on the Influence of Mineral Admixtures on the Properties of Hydraulic High-Performance Abrasion-Resistant Concrete

作　　者：卢浩丹 贺晶晶 张勇[1,3] 刘立峰 陈书军[4] 包想军 陈双蛮 LU Haodan;HE Jingjing;ZHANG Yong;LIU Lifeng;CHEN Shujun;BAO Xiangjun;CHEN Shuangman(PowerChina Northwest Engineering Corporation Limited,Xi'an 710065,China;Xi'an Key Laboratory of Clean Energy Digital Technology,Xi'an 710065,China;BeSTDR Infrastructure Hospital of NWE,Xi'an 710065,China;PowerChina Sinohydro Bureau 3 Co.,Ltd.,Xi'an 710024,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065 [2]西安市清洁能源数字化技术重点实验室,西安710065 [3]坝道工程医院西北水电分院,西安710065 [4]中国水利水电第三工程局有限公司,西安710024

出　　处：《西北水电》2024年第1期8-13,共6页Northwest Hydropower

基　　金：国家自然科学基金(5207090694);陕西省自然科学基础研究计划(2021JQ-983)。

摘　　要：针对不同种类、不同掺量矿物掺合料的高性能抗冲磨混凝土开展试验研究,探讨矿物掺合料对混凝土抗冲磨性能的影响规律,分析矿物掺合料改善混凝土抗冲磨性能的机理。结果表明:掺入矿物掺合料后,混凝土的抗压强度、抗冲磨强度均有显著地提高,脆性系数有一定程度的降低;混凝土抗压强度提升高达7%,脆性系数降低了约5%;抗冲磨强度提高了12%~19%。研究成果可为抗冲磨混凝土配合比设计及工程应用提供参考。Experimental study is carried out on high-performance abrasion resistant concrete with different types and different amounts of mineral admixtures to explore the influence of mineral admixtures on the erosion-resistant performance of the concrete and analyze how mineral admixtures improve the abrasion resistant performance mechanism of the concrete.The results show that after adding mineral admixtures,the compressive strength and abrasion resistance of concrete are significantly improved,and the brittleness coefficient is reduced to a certain extent;the compressive strength of concrete is increased by up to 7%,and the brittleness coefficient is reduced by 5%;the impact resistance is increased by 12%to 19%.The study results can provide reference for the mix design and engineering application of abrasion resistant concrete.

关 键 词：抗冲磨强度 脆性系数 微观结构 

分 类 号：TU528[建筑科学—建筑技术科学]