高钛高炉渣透水混凝土单轴压缩破坏试验及数值模拟

王军; 王浩; 蒋中友; 梁贺之; 杨贺

doi:10.7513/j.issn.1004-7638.2020.01.015

高钛高炉渣透水混凝土单轴压缩破坏试验及数值模拟

doi: 10.7513/j.issn.1004-7638.2020.01.015

王军^1,2,3,
王浩¹,
蒋中友¹,
梁贺之¹,
杨贺^1,2

1. 西华大学土木建筑与环境学院, 四川成都 610039;
2. 攀枝花学院土木与建筑工程学院, 四川攀枝花 617000;
3. 工业固态废弃物土木工程综合开发利用四川省高等学校重点实验室, 四川攀枝花 617000

基金项目:

四川省高等学校重点实验室项目(SC_FQWLY201305工业固态废弃物土木工程综合开发利用)；西华大学研究生创新基金(ycjj2018117)

详细信息

作者简介:
王军(1994-),男,四川内江人,硕士研究生,从事工业固态废弃物土木工程综合开发利用工作。E-mail:wongjjun@163.com

中图分类号: X756,TU528
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出版历程
- 收稿日期: 2019-09-23

Uniaxial Compression Failure Test and Numerical Simulation of High Titanium Blast Furnace Slag Pervious Concrete

1. School of Civil Engineering, Architecture and Environment, Xihua University, Chengdu 610039, Sichuan, China;
2. School of Civil and Architectural Engineering, Panzhihua University, Panzhihua 617000, Sichuan, China;
3. Comprehensive Development and Utilization of Civil Engineering of Industrial Solid Waste Key Laboratory of Universities in Sichuan Province, Panzhihua 617000, Sichuan, China

摘要

摘要: 通过高钛高炉渣透水混凝土单轴压缩试验发现:高钛高炉渣透水混凝土的抗压强度可达9.2 MPa,满足路面基层无砂混凝土设计强度要求,其破坏面形态与普通透水混凝土稍有不同,小粒径高钛高炉渣透水混凝土的破坏形态多表现为骨料断裂。通过单轴压缩数值模拟,得到了高钛高炉渣透水混凝土的细观力学参数,基于此参数的单轴压缩数值模拟曲线能很好地与不同粒径应力-应变曲线吻合;通过数值模拟观察了高钛高炉渣透水混凝土模型的断裂开展情况,验证了用PFC模拟高钛高炉渣透水混凝土单轴压缩试验的可行性。研究结果可为研究高钛高炉渣透水混凝土受力状态及破坏机理提供参考。
- 高钛高炉渣 /
- 透水混凝土 /
- 单轴压缩 /
- 破坏形态 /
- 数值模拟 /
- 细观力学参数
Abstract: Through uniaxial compression test of high titanium blast furnace slag（HTBFS） pervious concrete,it is found that the compressive strength of HTBFS pervious concrete can reach 9.2 MPa,which meets the design strength requirements of no-fines concrete on road base.And the morphology of failure surface for HTBFS pervious concrete with small particle size is mainly shown as aggregate fracture,slightly different from that of ordinary pervious concrete.In addition,through numerical simulation of uniaxial compression,the mesoscopic mechanical parameters of HTBFS pervious concrete were obtained,based on which the uniaxial compression numerical simulation curves can coincide well with the stress-strain curves of HTBFS pervious concrete with different particle size.Furthermore,the fracture development of HTBFS concrete model was observed by numerical simulation,and the feasibility for PFC simulation of uniaxial compression test of HTBFS pervious concrete was verified.The results of above research can provide reference for studying the stress state and failure mechanism of HTBFS pervious concrete.
- high titanium blast furnace slag /
- pervious concrete /
- uniaxial compression /
- failure mode /
- numerical simulation /
- mesoscopic mechanical parameters