水泥-蔗渣灰-矿粉海砂砂浆的抗压强度与抗氯盐渗透性能研究

doi:10.11896/cldb.23030005

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Abstract In this work, the effect of cement-bagasse ash(SCBA)-slag (BFS) ternary cementitious on the fluidity, compressive strength, chloride diffusion coefficient, pore structure, hydration products and bulk conductivity of mortar was studied by using simplex centroid design method. The results showed that the compressive strength decreased with the increase of bagasse ash content, but it can significantly reduce the chloride diffusion coefficient of sea-sand mortar. With the increase of the content of slag, the compressive strength increased slightly, and the chloride diffusion coefficient decreased significantly. When the cement content was 70%—75%, bagasse ash was 0%—10%, and slag was 10%—30%, the strength of sea-sand mortar was the highest, and the chloride diffusion coefficient was the lowest. The compressive strength of sea-sand mortar decreased with the increase of capillary pore and the most probable pore diameter. The chloride diffusion coefficient was determined by the pore structure and the chemical properties of pore solution.

Key words： bagasse ash slag sea-sand chloride diffusion coefficient pore structure

Published: 25 July 2024 Online: 2024-08-12

CLC number:

TU528

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	Articles by authors
	MO Yaohong
	LIU Jianhui
	LIU Leping
	CHEN Zheng
	JIANG Zenggui
	SHI Caijun

Cite this article:

MO Yaohong,LIU Jianhui,LIU Leping, et al. Study on Compressive Strength and Chloride Penetration Resistance of Cement-Bagasse Ash-Slag Sea-sand Mortar[J]. Materials Reports, 2024, 38(14): 23030005-10.

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http://www.mater-rep.com/EN/10.11896/cldb.23030005 OR http://www.mater-rep.com/EN/Y2024/V38/I14/23030005

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