西北水电Issue(6)：30-36,48,8.DOI:10.3969/j.issn.1006-2610.2023.06.006
新疆大石峡水利枢纽工程抗冲耐磨混凝土配合比试验研究
Experimental Study on Mix Proportion of Impact-resistant and Wear-resistant Concrete for Dashixia Water Control Project in Xinjiang
摘要
Abstract
The mix design of impact-resistant and wear-resistant concrete is of great significance for the long-term operation of water conservancy projects.Based on the flood discharge system of the Dashixia Water Control Project,the influence of water-binder ratio of concrete,coarse aggregate gradation,sand ratio and unit water consumption on slump is studied,and the compressive strength of con-crete for28 d and 90 d is analyzed,and the mix design scheme of impact-resistant and wear-resistant concrete(C9055W8F300,C9050W8F300,C40W8F200)suitable for this project is put forward,finally,C9055W8F300 grade concrete is selected to carry out the experimental study on abrasion resistance.The results show that the water-binder ratios of three kinds of impact-resistant and wear-re-sistant concrete are 0.31、0.33 and 0.36 respectively.The content of fly ash can be 25%,the content of silica fume can be 5%,the mass ratio of small stone to medium stone in coarse aggregate gradation can be45 ∶ 55,the sand ratio can be34%,and the water con-sumption can be 130 kg/m3.Under the strength grade of C9055W8F300,"silica fume + polypropylene fiber concrete"has the best ab-rasion resistance.This method provides guidance for the mix design of impact-resistant and wear-resistant concrete in the Dashixia Water Control Project,and can also provide ideas and references for similar projects.关键词
水利枢纽工程/混凝土/抗冲耐磨/水胶比/砂率Key words
water control project/concrete/anti-impact and wear-resistance/water-binder ratio/sand rate分类
水利科学引用本文复制引用
高建福,钱国文,刘利,褚浩羽,沈伟,胡海明..新疆大石峡水利枢纽工程抗冲耐磨混凝土配合比试验研究[J].西北水电,2023,(6):30-36,48,8.基金项目
国家重点研发计划项目(2018YFC0406702). （2018YFC0406702）
