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Information × Registration Number 0224U033438, (0123U103453) , R & D reports Title Development of composite materials for road construction on the based on heavy tonnage waste popup.stage_title Обгрунтування необхідних технологічних параметрів виготовлення тротуарної плитки із заданими фізико-механічними властивостями Head Sakhnenko Mykola D., Доктор технічних наук Registration Date 27-12-2024 Organization National Technical University "Kharkiv Polytechnic Institute" popup.description1 The purpose of the project is development of warehouses and technological parameters of paving slabs with reinforced surface layer based on heavy tonnage waste of metallurgical and energy industries with stable performance properties that can withstand alternating temperatures, atmospheric precipitation, dynamic and static loads. popup.description2 The purpose of the work is to develop compositions and technological parameters for obtaining paving slabs with a reinforced surface layer based on high-tonnage waste from the metallurgical and energy industries with stable operational properties that can withstand the effects of alternating temperatures, precipitation, aggressive environments, dynamic and static loads. Research methods are simplex-lattice method of experiment planning, physical, mechanical and technical properties were determined in accordance with the current DSTU and international ISO standards. Experimental data processing was performed using mathematical statistics methods. Based on previously developed theoretical provisions, theoretical calculations and laboratory studies, technological parameters for manufacturing a laboratory batch of paving slabs were substantiated; calibration dependences of the pressing pressure were established to obtain a given initial strength of the raw material; Rational conditions for the strength gain of a laboratory batch of paving slabs were determined; recommendations were developed for the use of technological equipment and parameters for the manufacture of paving slabs; protocols for research of the physical, mechanical, technical and operational properties of the obtained paving slab samples were obtained. Laboratory samples developed on the basis of high-tonnage waste from the metallurgical and energy industries meet the requirements of DSTU B V.2.7.–238:2010 and have the following indicators of physical, mechanical, technical and operational properties: normal density of slag-alkali binder – 12%; mobility of the initial concrete mixture – class P2, which helps to regulate the speed of strength gain; compressive strength – class B35; tensile strength when bending – class Bvtv 3.6; water absorption – 4.2 6%; frost resistance – class F150; abrasion resistance – 0.8 g/cm2. Product Description popup.authors Borysenko Oksana M. Voloshchuk Valentyna V. Zakharov Artem V. Korohodska Alla M. Kryvobok Ruslan V. Lisachuk Heorhii V. Shabanova Halyna M. Shumeiko Vita M. Shchukina Liudmyla P. popup.nrat_date 2024-12-27 Close