Medium temperature asphalt block is a solid asphalt product prepared from coal tar medium temperature fraction. It has a range of physical and chemical properties that determine its use. Here are some common indicators and uses of medium-temperature asphalt blocks:
Indicators of medium-temperature asphalt blocks:
1. Softening point: The softening point of the medium temperature asphalt block is usually between 80-90 °C, which means that it has a certain hardness and stability at room temperature, but it can be softened at a certain temperature, which is convenient for application.
2. Coking value: The coking value of medium temperature asphalt block is usually around 50%, which means that it can form a certain amount of residual carbon at high temperature, which is advantageous for applications that require high temperature resistance and structural stability.
Toluene insolbidities: Medium-temperature asphalt blocks typically have a toluene insoluble content of 18-26%, which reflects their aromatic hydrocarbon and resin content, which help improve their adhesion and heat resistance.
4Quinoline insolubles: The quinoline insoluble content of medium-temperature asphalt blocks is usually between 8-12%, which is related to its chemical composition and molecular structure.
Volatile content: The volatile content of medium-temperature asphalt blocks is usually between 55-65%, which indicates a certain amount of volatility at room temperature, but this needs to be taken into account when applying.
Ash content: Medium-temperature asphalt blocks typically have a low ash content, which helps to guarantee their purity and performance when applied.
Uses of medium temperature asphalt blocks:
1. Carbon industry: Medium temperature asphalt blocks are often used in the manufacture of carbon electrodes, anode paste, electrode rods, etc., and their good adhesion and heat resistance make them widely used in these fields.
2. Waterproof materials: Due to its good adhesion and water resistance, medium temperature asphalt blocks can be used to make waterproof coatings, waterproof membranes and other waterproof materials.
Building materials: Medium temperature asphalt blocks can be used for the waterproof layer and insulation layer of the building to improve the waterproof and thermal insulation performance of the building.
4 Coatings and paints: Medium temperature asphalt blocks can be used to make high-grade asphalt paints, coatings, etc., and their unique properties can provide good coating results.
Other industrial applications: Medium temperature asphalt blocks can also be used as adhesives, sealants, etc., and are widely used in rubber, sealing and other industries.
The specific indicators of medium-temperature asphalt blocks may vary according to the process and raw materials of different manufacturers, but their basic properties and application range are similar. When selecting and using medium-temperature asphalt blocks, it is necessary to select the right product according to the specific application requirements and environmental conditions.