id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-30377	Yang, Yifan	Study on the Influence of Air-Entraining Agent on Concrete Pore Structure Based on Nuclear Magnetic Resonance Technology	2025	5	.pdf	application/pdf	2540	96	55	In contrast, the JY1 group with 0.02% content decreased from 103.81% to 61.28%, the JY3 group with 0.06% content decreased from 102.59% to 64.35%, and the JS control group without air- entraining agent decreased from 102.60% to 62.52%. With the increase of air- entraining agent content, the expansion degree of concrete first increased and then decreased, and the influence of air- entraining agent on concrete expansion was greater than that of slump.	cache/ajst-30377.pdf	txt/ajst-30377.txt