id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
fis-3299	Djedid, Tarek; Mani, Mohammed; Ouakouak, Abdelkader; Guettala, Abdelhamid	Effect of varying silica-limestone sand fines on the physical-mechanical performance of concrete 	2021	12	.pdf	application/pdf	6262	417	59	Many researchers around the world have found that concrete based on 50% substitution of river sand by limestone sand gives better physico-mechanical characteristics. Aggregates The sand used for the production of concrete is composed of a mixture of 50% natural crushed sand (limestone sand) with a grain size of 0/3 mm (Fig. 1b) from the Ben Brahim quarry in the area (Hassi Messaoud, Algeria) and 50% natural rolled sand from the area of (Tébessa, Algeria) with a grain size of 0/5 mm (Fig. 1a)	cache/fis-3299.pdf	txt/fis-3299.txt