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[Chemical Knowledge]：Properties and Uses of Heavy-crossing Asphalt

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Heavy asphalt is an important raw material for chemical production, which is widely used in road construction, waterproof materials, paints and coatings and other fields. This article will detail the properties and uses of heavy asphalt.

1. the properties of heavy asphalt

1. Physical properties

heavy asphalt is a black, viscous, semi-solid material, with high viscosity and softening point, with good heat resistance, cold resistance, corrosion resistance, water resistance and plasticity.

2. Chemical properties

heavy cross asphalt is mainly composed of carbon, hydrogen, oxygen, nitrogen and other elements, of which carbon accounts for a relatively large proportion, followed by hydrogen. Heavy asphalt has good chemical stability and good corrosion resistance to acid, alkali and other chemical reagents.

2. heavy asphalt use

1. Road construction

heavy asphalt is one of the commonly used materials in road construction, mainly used for paving asphalt pavement. Asphalt pavement has good smoothness, skid resistance, durability and environmental protection, and is widely used in highway, urban roads, bridges and other road construction.

2. Waterproof material

heavy asphalt has good waterproof performance and can be used to make waterproof materials, such as waterproof coiled materials, waterproof coatings, etc. These materials can be used for building basement, roof, toilet and other parts of the waterproof.

3. Paint

heavy asphalt can also be used as one of the raw materials of paint coatings, with good weather resistance, corrosion resistance and decoration. Can be used for metal surface, wood surface coating protection.

4.

in other fields In addition to the above fields, heavy asphalt can also be used to make rubber products, linoleum, ink and other chemicals. The production process of

3. heavy asphalt

heavy asphalt production process mainly includes raw material processing, blending, oxidation, dehydration, slag removal and other steps. Among them, raw material processing is to obtain heavy oil from crude oil through distillation, cracking and other processes; blending is to mix heavy oil of different properties in proportion to obtain the required performance index; oxidation is to improve the viscosity and softening point of asphalt, usually air or oxygen is used as oxidant; dehydration is to remove moisture from asphalt; slag removal is to remove impurities from asphalt. The final obtained heavy cross asphalt needs to meet the relevant quality standards and specifications. The development trend and prospect of heavy asphalt in

4.

With the development of economy and the progress of technology, the development trend and prospect of heavy asphalt are very broad. In the future, heavy asphalt will pay more attention to environmental protection and sustainable development, continue to promote new technologies and processes, and improve production efficiency and product quality. At the same time, with the continuous strengthening of infrastructure construction and people's increasing requirements for environmental protection and safety, the market demand for heavy asphalt will also be further expanded. Therefore, the development prospect of heavy asphalt is very broad.

In short, heavy asphalt as an important chemical production raw materials, has a wide range of uses and good prospects for development. In the future development, it is necessary to continuously improve the technical level and product quality to meet market demand and promote the development of the industry.

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