RoadStar CRMB 50 is manufactured as per IS : 15462 : 2004,  IRC: 53-2004 /  IRC 53: 2010. It is recommended for cold climate zones. It enhances the key properties of asphalt mixes, i.e. deformation resistance and fatigue life. It is beneficial for use as it helps in delayed cracking and reflective cracking, provides better water resistance, higher fatigue life, higher resistance to deformation at elevated pavement temperatures, higher resistance to rutting, resistance to creep and higher indirect tensile strength, lower susceptibility to daily and seasonal temperature variations, better adhesion between aggregate and binder, overall improved performance in extreme climatic conditions and under heavy traffic conditions.

Technical Specification

RoadStar CRMB as per IS : 15462-2004, IRC :53- 2004 /IRC 53-2010

Sr. No	Designation	Requirements	Test Method
1	Penetration at 25 °C, 01mm, 100g, 5 sec	< 70	IS 1203 – 1978
2	Softening point, °C ( R & B ), Min.	50	IS 1205 – 1978
3	Elastic recovery of half thread in Ductilometer at 15 °C, % Min.	50	IS 15462 – 2004
4	Flash point °C Min.	220	IS 1209 – 1978
5	Separation difference in softening point, ( R & B ) °C Max.	4	IS 15462 – 2004
	Thin Film Oven Test (TFOT) on residue
	(a) Penetration at 25 °C, Min. % of original	60	IS 1203 – 1978
	(b) Increase in softening point, °C Max.	7	IS 1205 – 1978
	(c) Elastic recovery of half thread in Ductilometer at 25 °C, % Min.	35	IS 15462 – 2004