Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance Concrete
The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and by observing the morphologies of hardened past...
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Hindawi Limited
2018-01-01
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Series: | Advances in Civil Engineering |
Online Access: | http://dx.doi.org/10.1155/2018/1426037 |
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doaj-b5bb12f097a54842b110b846514026cb2020-11-24T22:58:08ZengHindawi LimitedAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/14260371426037Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance ConcreteJin Liu0Runhua Guo1Department of Civil Engineering, Tsinghua University, Beijing 100084, ChinaDepartment of Civil Engineering, Tsinghua University, Beijing 100084, ChinaThe applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and by observing the morphologies of hardened paste and the concrete fracture surface. The results show that the fluidity of the paste containing steel slag is higher. The nonevaporable water content of the hardened paste containing steel slag powder is close to that of the control sample at late ages. Both steel slag powder and steel slag aggregate react and connect tightly to gels and hardened paste, respectively. When the cement replacement ratio is no more than 10%, the proportion of pores larger than 50 nm in the hardened paste containing steel slag powder is close to that of the control sample, and the UHPC containing steel slag powder can display satisfactory compressive strengths. The UHPC containing steel slag aggregate demonstrates higher compressive strengths.http://dx.doi.org/10.1155/2018/1426037 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jin Liu Runhua Guo |
spellingShingle |
Jin Liu Runhua Guo Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance Concrete Advances in Civil Engineering |
author_facet |
Jin Liu Runhua Guo |
author_sort |
Jin Liu |
title |
Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance Concrete |
title_short |
Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance Concrete |
title_full |
Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance Concrete |
title_fullStr |
Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance Concrete |
title_full_unstemmed |
Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance Concrete |
title_sort |
applications of steel slag powder and steel slag aggregate in ultra-high performance concrete |
publisher |
Hindawi Limited |
series |
Advances in Civil Engineering |
issn |
1687-8086 1687-8094 |
publishDate |
2018-01-01 |
description |
The applications of steel slag powder and steel slag aggregate in ultra-high performance concrete (UHPC) were investigated by determining the fluidity, nonevaporable water content, and pore structure of paste and the compressive strength of concrete and by observing the morphologies of hardened paste and the concrete fracture surface. The results show that the fluidity of the paste containing steel slag is higher. The nonevaporable water content of the hardened paste containing steel slag powder is close to that of the control sample at late ages. Both steel slag powder and steel slag aggregate react and connect tightly to gels and hardened paste, respectively. When the cement replacement ratio is no more than 10%, the proportion of pores larger than 50 nm in the hardened paste containing steel slag powder is close to that of the control sample, and the UHPC containing steel slag powder can display satisfactory compressive strengths. The UHPC containing steel slag aggregate demonstrates higher compressive strengths. |
url |
http://dx.doi.org/10.1155/2018/1426037 |
work_keys_str_mv |
AT jinliu applicationsofsteelslagpowderandsteelslagaggregateinultrahighperformanceconcrete AT runhuaguo applicationsofsteelslagpowderandsteelslagaggregateinultrahighperformanceconcrete |
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1725648404948713472 |