Believe in Progress,
Achieve Success

As a creative and agile Iranian holding in the bitumen industry, DEJPA is among the first three producers in Iran with an export market, focusing on the field of bitumen and mulch. It is also known as a leading company in the field of technical and engineering services in the oil refining, bitumen and mulch industry, and it has made successful entries in the field of oil refining as business opportunities for the coming years.
Taking the lead in gaining market share in the current chain through increasing productivity, intelligence and innovation in supply, production and sales methods, as well as entering the oil refining chain in order to learn and build strategic capacity for the future of business.
40 YEARS OF COUNTINUES ACTIVITY IN BITUMEN PRODUCTION.
 
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Photo Report of the 16th National Conference and Exhibition on Bitumen, Asphalt, and Machinery

Photo Report of the 16th National Conference and Exhibition on Bitumen, Asphalt, and Machinery

The 16th National Conference and Exhibition on Bitumen, Asphalt, and Machinery was held from October 29 to October 31, 2024, at the Road, Housing, and Urban Development Research Center. This scientific event aimed to expand technical knowledge in the road construction industry and to provide a platform for the exchange of ideas and experiences among practitioners, experts, and specialists in related fields.






October 29 2024 More
Dejpa Bitumen

Effect of Penetration and Temperature on the Performance Specification of Bitumen

In this study, the effect of penetration and temperature changes on the performance specifications of bitumen was investigated experimentally. In this regard, it was ensured that the bitumen was obtained from a constant raw material and oxidation process at different times from the reactor. Experiments were carried out on bitumen with different penetration
May 29 2024 More