id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
fumecheng-11408	He, Chun-Hui; Liu, Chao	FRACTAL DIMENSIONS OF A POROUS CONCRETE AND ITS EFFECT ON THE CONCRETE’S STRENGTH	2023	14	.pdf	application/pdf	5163	302	65	There are many methods to calculate fractal dimensions, among which the Hausdorff dimensions are the most used one, its definition is [24, 26] ln ln N r  = (3) where N is new measured units when we measure the fractal pattern using a reduced 1/r scale. It is interesting to note that most natural materials have fractal dimensions closed to 1.618, the golden mean [29,30].	cache/fumecheng-11408.pdf	txt/fumecheng-11408.txt