铜尾矿对堆积结构优化的超高性能混凝土性能影响研究
Study on the influence of copper tailings on the performance of ultra-high performance concrete with packing structure optimization
马志强 1陈涛 1马怡彤 1王鑫鹏1
作者信息
- 1. 青岛理工大学土木工程学院,青岛 266525
- 折叠
摘要
为安全环保地解决铜尾矿堆存问题,采用堆积结构优化的超高性能混凝土(Ultra-High Performance Concrete,UHPC)回收铜尾矿.研究结果表明铜尾矿的掺加会增加UHPC的堆积密实度.同时,研究了铜尾矿对UHPC的工作性能、力学性能、耐久性和水化产物的影响,并考虑了铜尾矿中重金属离子在UHPC中的浸出性能,为减少铜尾矿中重金属离子浸出,安全环保利用铜尾矿提供了思路.
Abstract
To address the issue of copper tailings storage safely and environmentally,ultra-high performance concrete(UHPC)with packing structure optimization is used to recover copper tailings.The results show that the addition of copper tailings can increase the packing density of UHPC.Simultaneously,the study investigates the influence of copper tailings on the workability,mechanical properties,durability and hydration products of UHPC,and the leaching performance of heavy metal ions in copper tailings in UHPC is also considered.This study provides a way to reduce the leaching of heavy metal ions from copper tailings and to use copper tailings safely and environmentally.
关键词
铜尾矿/超高性能混凝土/堆积结构/浸出量Key words
copper tailings/ultra-high performance concrete(UHPC)/packing structure/leaching amount引用本文复制引用
出版年
2024
NETL
NSTL
万方数据