Bitumen 80/100 is a soft penetration grade with a needle penetration of 80 to 100 dmm at 25 °C, tested to ASTM D5. It is the paving grade of choice where winters are real and summers are moderate: soft enough to stay flexible through freeze–thaw cycles, stiff enough to carry light and medium traffic. ZUMRUT INT […]
Bitumen 60/70 is a medium-hard penetration grade with a needle penetration of 60 to 70 dmm at 25 °C, tested to ASTM D5. It is the most widely exported paving grade in the world, and in warm and tropical climates it is the default binder for hot mix asphalt. ZUMRUT INT Co. supplies it in jumbo […]
Bitumen 40/50 is a hard penetration grade with a needle penetration of 40 to 50 dmm at 25 °C and a softening point of 52 to 60 °C, tested to ASTM D946. It is specified where heat and heavy slow-moving traffic combine and a softer binder would rut: motorway intersections, port and airport pavements, and tropical road […]
General Description Bitumen 30/40 Bitumen 30/40 is a semi-hard penetration bitumen of grade bitumen that is derived from vacuum distillation of crude oil. It is viscous and durable and is primarily used in road construction and asphalt pavement manufacturing, especially where there is heavy traffic and high stress. This penetration grade bitumen softens at elevated […]
Description of MC Medium Curing (MC) Medium Curing cutback bitumen is a solvent bitumen blend with a moderately volatile solvent, typically kerosene. It has widespread usage in flexible pavements for surface dressing, prime coating, tack coating, and cold mix asphalt. It possesses a medium evaporation rate with a balance between setting time and workability, which […]
What is Rapid Curing Cutback Bitumen? Rapid curing cutback bitumen is asphalt cement mixed with light, very volatile solvents such as gasoline or naphtha. The solvents reduce the viscosity of the bitumen, making it easier to apply at low temperatures. The most commonly applied grades of rapid curing cutback bitumen are RC-70, RC-250, RC-800, and […]
What is Cationic Bitumen Emulsion? Cationic bitumen emulsion is a stable water dispersion of bitumen droplets with a positive electric charge. The positively charged emulsifying agents (e.g., NH₃⁺ groups) cause them to move towards the cathode when under an electric field, hence the term “cationic.”They repel one another due to the charge and stay suspended […]
Bitumen emulsion is bitumen dispersed in water as droplets half a micron to five microns across, held in suspension by an emulsifier that gives each droplet an electrical charge. That charge is not a technical footnote — it decides whether the binder bonds to your aggregate or strips off it. This guide covers what bitumen […]
Description of Bitumen Number 40 Bitumen Number 40 Bitumen grade 10 is most consumable hard asphalt which is semi solid grade of pure petroleum bitumen categorized in polycyclic aromatic hydrocarbons is normally used for different purposes in the construction business.Bitumen 30 is a type of hard grade building asphalt with penetration starting from No.10 that […]
