Bitumen PMB 40

What is PMB 40 Bitumen

PMB 40 Bitumen, also known as Polymer Modified Bitumen 40, is a specialized bituminous material engineered to enhance its performance and durability through polymer additives. This grade’s penetration value of 40 signifies its viscosity and consistency under specified conditions, making it suitable for various construction applications.

Comparative Analysis: PMB 40 vs. Other Grades

When comparing it with other bitumen grades, such as higher penetration grades or specialized formulations, distinct differences emerge in terms of performance and suitability for specific environments. It offers a balanced combination of viscosity and flexibility, making it suitable for moderate traffic areas and regions with varying climatic conditions.

Applications of PMB 40 Bitumen

It is a valuable asset in construction projects. It is commonly used in road construction to improve resistance to rutting, cracking, and aging, leading to longer-lasting and more durable road surfaces. Additionally, It finds applications in airport pavements, bridge decks, and areas with heavy traffic due to its robust performance characteristics.

Price Dynamics and Affordability

The pricing of PMB is influenced by factors such as raw material costs, market demand, and technological advancements. While it may be priced competitively compared to higher-grade PMBs, the affordability of PMB 40 lies in its performance benefits and suitability for a wide range of construction projects. Contact us for the proper cost analysis and procurement strategies can optimize its use within budget constraints.

Best Practices in Handling and Storage

Proper handling and storage are essential to maintain its quality and performance characteristics. It should be stored in a controlled environment, protected from direct sunlight and moisture, to prevent degradation and ensure consistency during application. Adequate packaging, such as sealed containers or drums, further enhances its shelf life and usability.

Specification of PMB 40 Bitumen

r. No	Designation	Requirements	Test Method
1	Penetration at 25 °C	30-50	IS 1203 – 1978
2	Softening point, ( R B ), C Min.	60	IS 1205 – 1978
3	Elastic recovery of half thread in Ductilometer at 15 °C, % Min.	70	IS 15462 – 2004
4	Flash point °C Min.	220	IS 1209 – 1978
5	Separation difference in softening point, ( R B ) °C Max.	3	IS 15462 – 2004
	Thin Film Oven Test (TFOT) on residue
	(a) Reduction in Penetration of residue at 25 °C, Min. % of original	35	IS 1203 – 1978
	(b) Increase in softening point, °C Max.	5	IS 1205 – 1978
	(c) Elastic recovery of half thread in Ductilometer at 25 °C, % Min.	50	IS 15462 – 2004