SAP孔引入对水泥基材料压溃行为的影响

doi:10.11896/cldb.24090207

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Abstract Foam concrete is the most commonly used core material for aircraft arresting systems. However, foam concrete has some shortcomings, such as difficulty in controlling the foaming process, an unstable void system, and poor water resistance. Superabsorbent polymer (SAP) voids are artificial voids that offer better stability, uniformity, and designability compared to air voids. In this work, the crushing behavior of cement-based materials (CBMs) containing SAP voids were investigated before and after immersion. Moreover, the effects of SAP on the pore structure, micromechanical properties, and mineral composition of CBMs were studied using boiling tests, nanoindentation, and X-ray diffraction analysis. The results show that increasing the SAP dosage leads to a decrease in stress values and an increase in maximum crushability in the stress-crushability curve of CBMs. Increasing the SAP dosage also causes a reduction in the hardness of the matrix, which is attributed to the addition of extra water rather than the release of water from SAP particles. Compared to foam concrete, the crushing performance of CBMs containing SAP voids is more stable due to the superior uniformity and stability of the SAP void system. Additionally, the water resistance of CBMs containing SAP voids is superior, owing to the stronger mechanical properties of the matrix and the higher porosity of CBMs. The introduction of SAP voids provides new insights into the design of crushing performance for porous CBMs.

Key words： cement-based materials crushing behavior superabsorbent polymer micromechanical properties pore structure

Published: 10 October 2025 Online: 2025-09-24

CLC number:

X511

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	Articles by authors
	SU Jizhi
	YANG Shichao
	SHAO Hua
	ZHANG Wuchen
	YANG Haitao

Cite this article:

SU Jizhi,YANG Shichao,SHAO Hua, et al. The Influence of SAP Void Introduction on the Crushing Behavior of Cement-based Materials[J]. Materials Reports, 2025, 39(19): 24090207-8.

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https://www.mater-rep.com/EN/10.11896/cldb.24090207 OR https://www.mater-rep.com/EN/Y2025/V39/I19/24090207

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