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Water absorption–release behavior of SAP@coral aggregate composite and its influence on UHPC

delete2026-07-16
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PRE
AI
Z
Zhihua Liu
J
Jianhui Liu *
J
Jing Li
W
Weiwei Su
Y
Yuzhu Yang
C
Chaofan Yi
Z
Zheng Chen
C
Caijun Shi *
DOI：10.1016/j.cemconres.2026.108334delete
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Abstract

Abstract

En 中文
• A novel composite internal curing material (SAP@CA) was synthesized via in-situ polymerization inside coral aggregate pores. • SAP@CA exhibits staged water absorption and controlled release suitable for UHPC's low w/b environment. • 15% SAP@CA reduces autogenous shrinkage by 44% and maintains 100% IRH up to 77 h. • Microstructural analyses (1H NMR, X-CT, SEM) confirm enhanced hydration, pore refinement, and ITZ densification. • SAP@CA provides internal curing without significant loss of compressive or flexural strength.

Journal

Cement and Concrete Research cover
Cement and Concrete Research
IF:
13.1
Papers:
6.9K
Citations:
7.5W

Organization

H
hunan university
Scholars:
4.3W
Papers: 3.2W
Citations: 70
G
guangxi university
Scholars:
3.2W
Papers: 1.8W
Citations: 25
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