材料科学与工程学报2024,Vol.42Issue(4):587-592,6.DOI:10.14136/j.cnki.issn1673-2812.2024.04.007
碱硅酸反应-冻融循环下掺锂渣混凝土力学性能试验分析
Experimental Analysis on Mechanical Properties of Concrete with Lithium Slag under ASR-FTC
摘要
Abstract
Research is conducted on the mechanical properties of concrete mixed with lithium slag under the coupling effect of alkali-silica acid reaction (ASR) and freeze-thaw cycle (FTC),including its flexural strength and compressive strength.Alkali-silica acid reaction and freeze-thaw cycles will reduce the compressive and flexural strength of concrete.The alkali-silica acid reaction after adding a certain amount of lithium slag will slightly increase the flexural strength of concrete.The more the number of freeze-thaw cycles,the more the compressive and flexural strength decreases,and the two reactions promote each other.The early alkali-silica reaction will aggravate the influence of the later freeze-thaw damage,and the first freeze-thaw damage will also aggravate the influence of the later alkali-silica reaction.The test results show that the incorporation of lithium slag can effectively improve the mechanical properties of concrete,with lithium slag content of 20% best.关键词
锂渣/碱硅酸反应/冻融循环Key words
Lithium slag/Alkaline-silicic acid reaction/Freeze-thaw cycle分类
建筑与水利引用本文复制引用
秦拥军,毕钰,阳毅恒,陈奇,张亚斌..碱硅酸反应-冻融循环下掺锂渣混凝土力学性能试验分析[J].材料科学与工程学报,2024,42(4):587-592,6.基金项目
国家自然科学基金项目(51668061) (51668061)