Ultra-high-performance alkali-activated concrete produced with desert sand incorporations

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成果类型：

期刊论文

作者：

Zhang, Ming;Hu, Pengfei;Sun, Shangyu;Yao, Jie;Sun, Yubo;...

通讯作者：

Zhong, J;Sun, YB

作者机构：

[Zhong, Jing; Zhong, J; Sun, Shangyu; Zhang, Ming] Harbin Inst Technol, Sch Civil Engn, Harbin 150001, Peoples R China.

[Zhang, Ming] China State Construct Int Holdings Ltd, Hong Kong 999077, Peoples R China.

[Hu, Pengfei] Wuhan Polytech Univ, Sch Civil Engn & Architecture, Wuhan 430023, Peoples R China.

[Yao, Jie] China State Construct Hailong Technol Co Ltd, Shenzhen 518000, Peoples R China.

[Sun, Yubo; Sun, YB] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong 999077, Peoples R China.

通讯机构：

[Zhong, J ; Sun, YB ] H

Harbin Inst Technol, Sch Civil Engn, Harbin 150001, Peoples R China.

Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong 999077, Peoples R China.

语种：

英文

关键词：

Desert sand;Ultra-high-performance concrete;Alkali-activated materials;Microstructures;Reaction products

期刊：

Construction and Building Materials

ISSN：

0950-0618

年：

2025

卷：

476

页码：

141240

DOI：

10.1016/j.conbuildmat.2025.141240

基金类别：

National Natural Science Foundation of China [52073073]; China State Construction International Holdings Limited [CSCI-2023-Z-11, CSCI-2023-Z-26]

机构署名：

本校为其他机构

院系归属：

土木工程与建筑学院

摘要：

The global surge in construction has intensified demand for natural silica sand (SS), causing shortages due to unsustainable extraction. This study explores the potential of using desert sand (DS) as an alternative to SS in producing ultra-high-performance alkali-activated concrete (UHPAAC), emphasizing the interactions between aggregates and the binding matrix. DS demonstrated a smoother surface morphology, finer particles, and a narrower gradation compared to SS. Substituting SS with DS at varying volume ratios improved the concentration of s...

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Ultra-high-performance alkali-activated concrete produced with desert sand incorporations

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