Arid
DOI10.3390/buildings11080327
Performance of Steel Fiber-Reinforced Alkali-Activated Slag-Fly Ash Blended Concrete Incorporating Recycled Concrete Aggregates and Dune Sand
El-Hassan, Hilal; Hussein, Abdalla; Medljy, Jamal; El-Maaddawy, Tamer
通讯作者El-Hassan, H (corresponding author), UAE Univ, Dept Civil & Environm Engn, Al Ain 15551, U Arab Emirates.
来源期刊BUILDINGS
EISSN2075-5309
出版年2021
卷号11期号:8
英文摘要This study evaluates the performance of alkali-activated slag-fly ash blended concrete made with recycled concrete aggregates (RCA) and reinforced with steel fibers. Two blends of concrete with ground granulated blast furnace slag-to-fly ash ratios of 3:1 and 1:1 were used. Natural aggregates were substituted with RCA, while macro steel fibers with 35 mm of length and aspect ratio of 65 were incorporated in RCA-based mixtures at various volume fractions. Fine aggregates were in the form of desert dune sand. Mechanical and durability characteristics were investigated. Experimental results revealed that RCA replacement decreased the compressive strength of plain concrete mixtures with more pronounced reductions being perceived at higher replacement percentages. Mixtures made with 30%, 70%, and 100% RCA could be produced with limited loss in the design compressive strength upon incorporating 1%, 2%, and 2% steel fibers, by volume, respectively. In turn, splitting tensile strength was comparable to the NA-based control while adding at least 1% steel fiber, by volume. Moreover, higher water absorption and capillary sorptivity and lower ultrasonic pulse velocity, bulk resistivity, and abrasion resistance were reported during RCA replacement. Meanwhile, incorporation of steel fibers densified the concrete and enhanced its resistance to abrasive forces, water permeation, and water transport. Analytical regression models were developed to correlate hardened concrete properties to the 28-day cylinder compressive strength.
英文关键词alkali-activated concrete slag fly ash steel fibers dune sand recycled concrete aggregate hardened properties analytical regression model
类型Article
语种英语
开放获取类型gold
收录类别SCI-E
WOS记录号WOS:000688917600001
WOS关键词BLAST-FURNACE SLAG ; MECHANICAL-PROPERTIES ; GEOPOLYMER CONCRETE ; COARSE AGGREGATE ; DURABILITY PROPERTIES ; DEMOLITION WASTE ; MICROSTRUCTURE ; STRENGTH ; WORKABILITY ; BEHAVIOR
WOS类目Construction & Building Technology ; Engineering, Civil
WOS研究方向Construction & Building Technology ; Engineering
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/362750
作者单位[El-Hassan, Hilal; Hussein, Abdalla; Medljy, Jamal; El-Maaddawy, Tamer] UAE Univ, Dept Civil & Environm Engn, Al Ain 15551, U Arab Emirates
推荐引用方式
GB/T 7714
El-Hassan, Hilal,Hussein, Abdalla,Medljy, Jamal,et al. Performance of Steel Fiber-Reinforced Alkali-Activated Slag-Fly Ash Blended Concrete Incorporating Recycled Concrete Aggregates and Dune Sand[J],2021,11(8).
APA El-Hassan, Hilal,Hussein, Abdalla,Medljy, Jamal,&El-Maaddawy, Tamer.(2021).Performance of Steel Fiber-Reinforced Alkali-Activated Slag-Fly Ash Blended Concrete Incorporating Recycled Concrete Aggregates and Dune Sand.BUILDINGS,11(8).
MLA El-Hassan, Hilal,et al."Performance of Steel Fiber-Reinforced Alkali-Activated Slag-Fly Ash Blended Concrete Incorporating Recycled Concrete Aggregates and Dune Sand".BUILDINGS 11.8(2021).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[El-Hassan, Hilal]的文章
[Hussein, Abdalla]的文章
[Medljy, Jamal]的文章
百度学术
百度学术中相似的文章
[El-Hassan, Hilal]的文章
[Hussein, Abdalla]的文章
[Medljy, Jamal]的文章
必应学术
必应学术中相似的文章
[El-Hassan, Hilal]的文章
[Hussein, Abdalla]的文章
[Medljy, Jamal]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。