Sulfuric acid resistance of concrete containing coal waste as a partial substitute for fine and coarse aggregates

Mahdi Shariati,Hesam Kamyab,Mostafa Habibi, Shirin Ahmadi,Morteza Naghipour, Fatemeh Gorjinezhad,Seyedalireza Mohammadirad,Arman Aminian

Fuel（2023）

引用 13|浏览3

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摘要

•Coal waste used as aggregate replacement in concrete.•Thorough assessment of sulfuric acid resistance.•Higher CW contents lead to more water absorption.•Strength enhanced by 5% and 10% CW, but decreased with higher CW contents.•Formation of harmful Ca(OH)2 crystals, ettringite needles, and gypsum observed in SEM images.

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关键词

Sulfuric acid attack, Coal waste, Concrete aggregates, Concrete durability, Concrete strength properties

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