All posts by: Zumrut

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Oxidized bitumen vs penetration bitumen is not a question of which is better. They are different products made by different processes for different jobs. Penetration bitumen is straight-run refinery bottoms, graded on how soft it is at 25 °C, and it goes into roads. Oxidized bitumen is that same material blown with air until it hardens, […]

The bitumen vs asphalt question has two separate answers, and confusing them is why the argument never ends. Technically, asphalt is made from bitumen — bitumen is the black binder, asphalt is the finished mix of that binder with aggregate. One is an ingredient of the other, not a rival to it. Regionally, American English […]

Bitumen shelf life is shorter than most buyers assume, and it depends far more on how the material is stored than on how old it is. Penetration grade bitumen in sealed drums holds its specification for roughly two years. The same bitumen sitting hot in a tank at 180 °C can drift out of specification in […]

Bitumen Grade Equivalence Chart — Penetration, VG, PG, AC and Australian Grades Compared There is no exact bitumen grade equivalence between grading systems, and any chart that claims otherwise is misleading you. Penetration, viscosity, performance and AC grading each measure different properties at different temperatures. What this guide gives you is the practical cross-reference used […]

PG Bitumen 64-22 Supplier — AASHTO M320 Performance Graded Binder PG 64-22 is the workhorse paving binder of the Superpave system: an unmodified, performance graded asphalt binder specified for pavements where the seven-day average maximum design temperature reaches 64 °C and the minimum design temperature falls to −22 °C. It is the most widely produced […]

Bitumen Supplier in Iraq — Penetration, VG and Oxidized Grades via Umm Qasr As a bitumen supplier in Iraq, Zumrut International Kimya delivers penetration grades, viscosity grades and oxidized bitumen into Umm Qasr and overland to Erbil and Sulaymaniyah. Iraq is unusual among our markets: it produces bitumen domestically and exports it, yet imports continue […]

As a global bitumen supplier, ZUMRUT INT Co. ships penetration, oxidized, cutback and emulsion grades to 35 countries across Southeast Asia, Africa and South America. This page is the entry point to each market — but before the country pages, it sets out what actually differs between destinations: which grade each region specifies, what the […]

Introduction As Thailand continues to grow as a Southeast Asian infrastructure, real estate, and industrial development center, the need for high-performance building materials is rapidly increasing. Oxidized Bitumen, also known as blown bitumen, has emerged as an essential product applied in waterproofing, roofing, pipe coating, and other heavy-duty industrial applications. As a trusted Oxidized Bitumen […]