橡胶对超高性能混凝土性能的影响及机理研究
Study on the influence and mechanism of rubber on the properties of ultra-high performance concrete
甄智聪 1郑强 1于娇 1侯东帅2
作者信息
- 1. 青岛理工大学 土木工程学院,青岛 266525
- 2. 青岛理工大学 土木工程学院,青岛 266525;山东省高等学校蓝色经济区工程建设与安全协同创新中心,青岛 266525
- 折叠
摘要
为解决橡胶垃圾的环保处理问题,采用橡胶颗粒为填充骨料,制备生态型超高性能混凝土(Ultra-high Performance Concrete,UHPC).研究结果表明橡胶的掺量和粒径显著影响了UHPC的界面过渡区结构宽度和孔隙率,从而对UHPC产生不同的劣化效应.以工作性能和强度为因变量,确定了橡胶颗粒的最优掺量(10%)和粒径(0.850 mm),制备出抗压强度大于120 MPa的生态型UHPC,为橡胶的回收利用提供了思路.
Abstract
In order to address the issue of protecting the environment from rubber waste,this study uses rubber particles as filler aggregate to create ecotypic ultra-high performance con-crete(UHPC).The results indicate that the rubber content and particle size have a substan-tial impact on the structural breadth and porosity of the interfacial transition zone(ITZ)of UHPC,resulting in varying UHPC degradation effects.Using working performance and strength as the dependent variables,the ideal dose(10%)and particle size(0.850 mm)of rubber particles are found,and an ecotypic UHPC with a compressive strength of more than 120 MPa is created.This research provides suggestions for the recycling of rubber.
关键词
超高性能混凝土/橡胶颗粒/界面过渡区/生态化Key words
ultra-high performance concrete(UHPC)/rubber particles/interfacial transition zone(ITZ)/ecologicalization引用本文复制引用
基金项目
国家自然科学基金资助项目(U2006224)
出版年
2024
NETL
NSTL
万方数据