What is bitumen? This is a black liquid with high viscosity, tar and asphalt are variations. Bitumen has many applications in construction and manufacturing.

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Bitumen is a material used a lot in the construction field. However, some people often mistakenly believe that bitumen is asphalt. So what is bitumen? How is this material applied in the construction industry – architecture?

Let’s find answers to questions about bitumen together with New Land in the article below.

I. What is bitumen


1. Concept

Bitumen is a liquid, black, highly viscous organic compound. It is a mixture of asphaltenes, aromatic hydrocarbons and saturated hydrocarbons.

Structure of bitumen components

Tar and bitumen are among the variations of bitumen:

Tar: is a liquid obtained by distillation, hydrolysis or carbonization of natural organic materials such as coal or wood under rare gas conditions Asphalt: is separated from petroleum by technology without any change. by heat or breaking the structure

2. Classification

Based on the origin of formation, people divide bitumen into 2 main types:

Bitumen is classified based on the origin of formation

Natural origin

Natural bitumen occurs in various parts of the world as quarries or open pits.

Synthetic origin

Bitumen is synthesized and processed into the following products:

“Straight” bitumen: obtained by vacuum or air distillation of petroleum oils containing bitumen. “blown” bitumen: produced by blowing air in the opposite direction of the molten stream of straight bitumen. “trimmed” (liquid bitumen): obtained by mixing bitumen with petroleum solvents or mineral oils, sometimes with tar or aromatic polymers extracted. Bitumen emulsions: made by emulsifies 50 – 65% bitumen in water with the participation of 0.5 – 1.0% emulsifier, usually soap, and is often used in cold form for industrial and sugar-making purposes. Petroleum bitumen. : Synthesized from petroleum distillation.

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II. Application of bitumen in the construction industry – architecture

1. Bitumen tiles, bituminous roofing sheets with stone

Bitumen tile is a new type of roof tile, which is composed of components such as bitumen, fiberglass film, porcelain coated natural crushed stone and a specialized glue.

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Like bitumen tiles, stone coated bitumen roofing sheets are products used for roofing, widely used in America and Europe. This product is composed of bitumen base film, alkali resistant fiberglass, natural stone, acrylic coating and specialized adhesive.

What is bitumen tile?

Bitumen tiles, stone-covered bitumen roofing sheets have many outstanding advantages compared to other common tiles such as:

Good insulation, sound insulation High strength, long service life, can be recycled after use to make asphalt laminating mixture High water resistance, even waterproof Light weight, much lower than tile terracotta and cement tiles, convenient for construction and can be cost-optimized Styles and designs are diverse, increasing the aesthetics of the house Can be bent into many different shapes, helping the tile not to crack break and ensure safety during construction

2. Bitumen asphalt (bitumen asphalt)

Bitumen bitumen (or bitumen asphalt) is produced into 2 main products:

Bitumen asphalt roof is a type of roofing made of a mixture of liquid organic substances, highly cohesive, and impermeable to water. Bitumen asphalt waterproofing membrane is a material with a the main part is bitumen and reinforced with mesh, layers of fibers, etc. to enhance toughness, flexibility, elasticity, resistance to impact force and high temperature

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3. Bitumen Insert Slot

Sealant bitumen is a product made on the basis of the adhesive properties of modified rubber bitumen combined with other special additives.

The slot insert bitumen has the following effects:

Sealing, inserting expansion joints in concrete roofs, roads, industrial floors, etc. Waterproofing, anti-leakage to protect concrete and reinforced concrete (new or old) Waterproofing, anti-leakage for asbestos cement roofing sheets is very good. effective

4. Bitumen for pipes, anti-corrosion bitumen tape

Pipe wrap bitumen

Pipe wrapping bitumen, also known as pipe sweeping bitumen, is a type of liquid bitumen manufactured to wrap pipes, forming an adhesive film that separates water and moisture in the ground from metal pipes. This product helps to waterproof, prevent electrochemical corrosion, limit the leakage of pipes.

Pipe wrapping bitumen (sweeping pipe bitumen) is applied on construction surfaces such as:

Bitumen sweeps fire hosesA layer of underground waterproofing material for metal pipe surfaces.Waterproofing on surface structures in contact with water (chains, ship anchors…) Basement waterproofing.…

Another type of bitumen product that also has this effect is the anti-corrosion bitumen cuff. This product is made up of one layer of anti-corrosion bitumen rubber on the inside (1mm thick) and two layers of waterproof PVC on the outside, very good adhesion on rusty, cold, damp and resistant surfaces. temperature from -30 to 70 degrees Celsius.

Corrosion-resistant bitumen tape specializes in protecting metal pipes such as:

Gas, chemicals, water, gas pipes Underground pipelines Pipelines outside the rig…

Thus, New Land has just introduced to you what bitumen is and some applications of bitumen in the construction industry – architecture. Hopefully the above information and knowledge will help you understand more about a new material in nature.

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Ann Tran – New Housing Editorial Board

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