PT Journal AU Kozbagarov, R Kamzanov, N Amanova, M Baikenzheyeva, A Naimanova, G TI Justification of the Cam Roller Parameters for Destruction of the Road Coatings for Obtaining the Lumpy Asphalt Scrap SO Communications - Scientific Letters of the University of Zilina PY 2023 BP B103 EP B109 VL 25 IS 2 DI 10.26552/com.C.2023.028 WP https://komunikacie.uniza.sk/artkey/csl-202302-0009.php DE highway; cam rollers; asphalt concrete pavement; working bodies; asphalt scrap SN 13354205 AB Cam rollers can be used to break up cold asphalt pavements. In Kazakhstan, about 70 % of roads have such coatings. It is most effective to open at temperatures above 20 °C. To reduce the traction force and uniform movement of the roller, it is necessary to eliminate the resistance of the coating to the exit of the cams, when rolling the drum by pivoting the cams in the roller's direction. The reliability of the theoretical studies' results was confirmed by production tests of the cam rollers during the opening of the asphalt concrete pavement on the Gulshad-Akchatau highway. ER