Rumays Intl. Trading Co.

International Bitumen Standards: ASTM, AASHTO, CEN, IS, AS

International Bitumen Standards

Various international organizations have established standards for bitumen, including ASTM, AASHTO, CEN, IS, and AS. These standards help ensure consistency and quality in the production and use of bitumen around the world. Let’s take a closer look at each of these standards: 1. American Society for Testing and Materials (ASTM): This is an international institution […]

Hot Mix VS Cold Mix Asphalt

Hot Mix VS Cold Mix Asphalt

Are you aware of the difference between hot mix and cold mix asphalt? Understanding the distinction between these two types of asphalt can help you make an informed decision when it comes to your paving needs. Don’t miss out on the advantages of either type. Learn all about it today! Asphalt is a black, sticky […]

Bitumen Production Process

Bitumen Production Process

There are four methods for producing bitumen: Straight Run, Air Blowing, Deasphalting, and Blending. Air Blowing is the most commonly used method. Suitable Crude Oil for Producing Bitumen It is possible to produce bitumen using crude oil that has a specific gravity greater than 0.9. This is because these crude oils contain a suitable amount […]

Introduction to Gilsonite (Natural Bitumen)

Gilsonite, Natural Bitumen, Rumays

Gilsonite is a natural bitumen found in mines in lump form, with varying ash content. These lumps can be used as micronized powder or in the same form in industry. Gilsonite is mainly used in road construction, drilling mud, and printing. The Process of Producing Micronized Gilsonite “The production process of micronized Gilsonite powder” refers […]

Cutback Bitumen: Types, Advantages, Grades and Uses

Cutback Bitumen rumays internatinal branding bitumen trading rahgozar farghadani asphalt

Cutback bitumen is a combination of bitumen and a solvent, such as kerosene or gasoline, that is suitable for the intended purpose. The type and quality of Cutback bitumen depend on the quality of the original pure bitumen, the type of solvent, and the amount of solvent used. Cutback bitumen is commonly used in road […]

Bitumen Emulsion: Types, Advantages and Uses

Bitumen Emulsion: Uses, Advantages and Disadvantages rumays internatinal branding bitumen trading rahgozar farghadani asphalt

Bitumen emulsion is a mixture of fine Bitumen droplets and Emulsifiers dispersed in Water. Bitumen emulsifying agent is a substance that prevents bitumen particles from sticking to each other in water and causes bitumen to disperse completely in water. In this way, the emulsifying molecules surround the bitumen molecules and prevent the bitumen particles from […]

9 Different Types of Asphalt

Asphalt is the most widely used material for roads and pavement. On the following we mention nine different types of asphalt, and a quick explanation about each of them. What is Asphalt? Asphalt is a black, sticky liquid that is mixed with gravel, crushed rock, sand, and slag. A binder is used to make […]

Why is Bitumen Used in Road Construction? Bitumen is used in road construction because of its unique features and benefits over other paving materials. Bitumen obtains certain qualities that are incorporated into it during the manufacturing process. Bitumen as a raw material in flexible road construction and bitumen as a mix (comprising additional materials such as aggregates/pozzolans) provide significant benefits, prompting […]