材料组成对超高性能混凝土性能的影响研究  

Effect of constitutes on properties of ultra high performance concrete

作　　者：李宁 张鸣[1] 毛翔 杨鼎宜[1] 赵健 潘卫 李明龙 Li Ning;Zhang Ming;Mao Xiang;Yang Dingyi;Zhao Jian;Pan Wei;Li Minglong(College of Architectural Science and Engineering,Yangzhou University,Yangzhou Jiangsu 225127,China)

机构地区：[1]扬州大学建筑科学与工程学院,江苏扬州225127

出　　处：《山西建筑》2025年第5期99-103,共5页Shanxi Architecture

基　　金：中交第一航务工程局有限公司揭榜挂帅项目:免蒸养超高性能混凝土的研制及应用(项目编号:2022-YHJJBGS-02);江苏省大学生创新创业训练计划项目:低碳水泥UHPC壳体及农业剩余物轻质芯材声屏障组成、结构形式与性能研究(项目编号:202211117089Y);江苏省建设系统科技项目:固化淤泥水化产物与结构形成机理及其在建材中的应用研究(项目编号:2018ZD207)。

摘　　要：文章以新拌超高性能混凝土(UHPC)浆体的流动度、黏度以及硬化后浆体的抗压强度为评价指标,确定了UHPC用降黏型外加剂的最佳组成;以抗压强度为评价指标,确定了单因素试验和正交试验得到的UHPC浆体最优配比;试验了不同类型钢纤维对UHPC抗压强度的影响,确定了对抗压强度提高最明显的钢纤维种类;采用优选的钢纤维与两种UHPC浆体优化配比制备渍浆纤维超高性能混凝土(SIF-UHPC),从而确定了抗压强度最高的SIF-UHPC组成。In this paper,the fluidity and viscosity of fresh Ultra High Performance Concrete(UHPC)paste and the strength of hardened UHPC paste were taken as evolution indexes,the optimal compositions of viscosity-reduction miscellaneous aids for UHPC were determined;consequently,take the compressive strength as evolution index,the optimal mix proportion of UHPC pastes based on single factor experiment and orthogonal experiment were determined;experimental investigated different types of steel fiber on compressive strength of Slurry Infiltrated Fiber Ultra High Performance Concrete(SIF-UHPC),and the type of steel fiber that has most obvious improvement in compressive strength was determined;SIF-UHPC prepared using the selected steel fiber and the two UHPC pastes,and obtained the optimal composition of SIF-UHPC with the highest compressive strength.

关 键 词：渍浆纤维超高性能混凝土 浆体组成 黏度 流动度 抗压强度 

分 类 号：TU528.57[建筑科学—建筑技术科学]