id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-1156		cet-1156		6	.pdf	application/pdf	3057	131	46	Cement-based permeable crystalline waterproof coating is a kind of cement concrete waterproof material, which contains the chemical active substances as water a carrier to penetrate into the concrete. It can be used as the base material of polymer cement waterproof coating.	cache/cet-1156.pdf	txt/cet-1156.txt