持续负温(-5℃)养护条件下含气混凝土性能劣化及孔结构发展规律试验研究OA北大核心CSTPCD
Experimental study on performance deterioration and pore structure development law of aerated concrete under negative temperature curing
通过对比负温养护、标准养护条件下5种不同含气混凝土试块在不同龄期下的抗压强度值及内部孔结构,分析持续负温(-5℃)养护条件下含气混凝土抗压强度的发展规律,针对持续负温(-5℃)养护条件,对少害孔的范围进一步明确;并从混凝土内部孔隙分布状况对引气类混凝土普遍存在的强度缺失进行研究.试验结果表明:持续负温(-5℃)条件养护对含气混凝土抗压强度的增长有明显的抑制作用,相同引气剂掺量下混凝土试块强度均小于标准养护试块的强度;同种养护条件下,受引气剂影响,…查看全部>>
In this experiment,by comparing the compressive strength values and internal pore structure of five different aerated concrete test blocks at different ages under the conditions of negative temperature curing and standard curing,the development law of the compressive strength of aerated concrete is analyzed based on the(-5℃)curing condition,and the range of less harmful pores under this condition is further clarified based on the relationship between the por…查看全部>>
张戎令;于博;郭海贞
兰州交通大学 土木工程学院,兰州 730070||兰州交通大学 道桥工程灾害防治技术国家地方联合工程实验室,兰州 730070兰州交通大学 土木工程学院,兰州 730070兰州交通大学 土木工程学院,兰州 730070
土木建筑
含气混凝土引气剂负温养护抗压强度孔结构
aerated concreteair entraining agentnegative temperature curingcompressive strengthpore structure
《土木与环境工程学报（中英文）》 2024 (3)
180-188,9
长江学者和创新团队发展计划滚动支持项目(IRT_15R29)国家自然科学基金(51768033)甘肃省高校协同创新科技团队支持计划资助(2017C-08)陇原青年创新人才(团队)项目甘肃省教育厅高等学校科研项目(2018B-054) Scholars and Innovation Team Development Program(No.IRT_15R29)National Natural Science Foundation of China(No.51768033)University Collaborative Innovation Science and Technology Team Support Program of Gansu Province(No.2017C-08)Longyuan Youth Innovative Talents(Team)ProjectScientific Research Project of Higher Education Institutions of Gansu Province(No.2018B-054)
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