id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajema-4520	Sirgievich, Rosilov Mansur; Ulashevna, Axmedova Fazilat	Methods for Obtaining Modified Sulfur Bitumen	2024	3	.htm	application/pdf	1384	57	36	A model of chemical processes occurring in a sulfur-asphalt concrete mixture has been developed, which makes it possible to establish the effects of prescription and technological factors on the emission of toxic gases; The kinetics of sulfur crystallization in sulfur bitumen materials has been established, which affects the structure parameters and properties of sulfur asphalt concrete; a method for designing compositions of sulfur asphalt concrete obtained by adding a sulfur modifier has been developed; a method for estimating the emission of toxic gases from sulfur bitumen materials is proposed, which allows determining the concentrations of released toxic gases; dependences of the temperature of preparation and compaction of sulfur-asphalt concrete mixtures on the amount of sulfur modifier and plasticizer (paraffin) are obtained; the composition and mode of preparation of sulfur asphalt concrete, which has increased physical, mechanical and operational properties, have been optimized. A method for producing sulfurous asphalt concrete, including the interaction of sulfur with dicyclopentadiene followed by mixing modified sulfur with bitumen and filler, characterized in that the interaction of sulfur with dicyclopentadiene is carried out by intensive mixing with an immersion sulfur pump for 45-60 minutes at a temperature of 140-145 ° C, then sulfur bitumen is mixed first obtained by mixing modified sulfur and bitumen in a reactor in for 25-35 minutes in a ratio of 1:1-1:1.5, followed by mixing the resulting sulfur bitumen with a mineral filler, moreover, sulfur bitumen is introduced in an amount at which its volume concentration corresponds to the volume concentration of ordinary bitumen for a given brand of concrete and type of filler	cache/ajema-4520.htm	txt/ajema-4520.txt