Rubber powder is extensively used in sports artificial turf fields, playgrounds, rubber tiles, waterproof membranes, waterproof coatings, road modified asphalt, and various rubber products.

Processing waste rubber products into rubber powder is the primary method for recycling waste rubber, with the majority being tire rubber powder. The main components of tire rubber powder include natural rubber, synthetic rubber, and carbon black, along with small amounts of additives such as sulfur and iron oxide.

As a bitumen modifier for road engineering, it enhances the road surface's high-temperature performance, anti-aging properties, and fatigue resistance. In road construction, rubber powder is primarily used in rubber asphalt, rubber asphalt concrete, and cement mortar modification applications.

Rubber asphalt

Rubber asphalt can be used in road engineering for rubber asphalt waterproof bonding layers, gravel sealing layers, road waterproofing materials, and joint fillers, effectively enhancing the road's frost resistance, crack resistance, and fatigue resistance, and preventing water from affecting asphalt pavements.

In actual production, rubber powder can be directly mixed with asphalt, or surface-modified rubber powder can be used with asphalt, or aromatic additives can be added to the rubber powder/asphalt mixture, or a certain amount of natural rubber can be incorporated into the rubber powder/asphalt blend.

2. Rubber asphalt concrete

Rubber asphalt concrete is a material made by blending rubber powder, aggregates, and asphalt, primarily including low-noise rubber asphalt concrete and crack-resistant rubber asphalt concrete. It is mainly used for road noise reduction and the reconstruction of old roads.

In actual production, the addition of rubber powder 2YLYY618-LYY significantly enhances the elasticity and damping of asphalt concrete, improving its load-bearing capacity and crack resistance. High-viscosity rubber asphalt provides excellent noise reduction effects, and the incorporation of an appropriate amount of rubber powder into asphalt concrete can visibly reduce the thickness of the asphalt surface while enhancing its crack resistance.

3. Modified Cement Mortar

When using rubber powder to modify cement mortar, the common method is to replace the ordinary aggregates with the rubber powder according to the volume fraction of fine aggregates in the mortar. During the preparation process of rubber powder-modified cement mortar, it is necessary to fully consider the changes in density, compressive strength, water resistance, thermal insulation, and sound insulation of the mortar after adding the rubber powder.

Generally, the amount of polymer powder in modified cement mortar should not be too high.