Stone 0x5 factory run mesh 0x8mm

0x5 stone (also known as dusty stone, crushed stone 0-5 mm) is a type of stone with a size from 0 mm to 5 mm. This is a by-product in the process of crushing stone or screened from larger stones.

This type of stone is often used as a small aggregate in asphalt concrete, helping to fill the voids between large aggregates, creating a solid density for the asphalt concrete mixture.

Characteristics of 0x5 stone

• Small grain size: from 0 mm to 5 mm.
• High dust content, helps increase adhesion to asphalt.
• High hardness, limits abrasion when bearing loads.
• Angular shape, helps bond better with large aggregates.
• Color: Gray, black (depending on the type of parent stone: granite, basalt, limestone…).

1. Main ingredients in asphalt concrete mixture

• 0x5 stone acts as fine aggregate, helping to increase adhesion and fill the gaps between large aggregates.
• Used in medium and fine grain asphalt concrete to create a smoother and more durable road surface.

2. Road construction

• Is an important ingredient in asphalt concrete pavement.
• Used as a underlying layer, helping to increase the durability of the road surface structure.

3. Stabilize the road surface structure

• Reduce the porosity of asphalt concrete, making the road surface smoother.
• Increase water resistance, protecting the roadbed structure from water damage.

1. Standard grain composition (TCVN 8819:2011)

2. Important physical and mechanical indicators

• TCVN 8819:2011 – Requirements for hot mix asphalt concrete.
• TCVN 7570:2006 – Standard for coarse aggregate in concrete.
• ASTM D692/D692M – American standard for asphalt concrete aggregate.

1. Advantages

• Helps increase the adhesion of asphalt concrete – Due to high dust content.
• Fills the voids between large aggregates, increasing the density of the asphalt concrete mixture.
• Increases water resistance, limits damage caused by water penetration.
• Easy to construct and popular, reasonable cost.

2. Disadvantages

• Easily washed away when there is water, need to be well preserved before use.
• Cannot be used independently, must be combined with larger aggregates to ensure stable structure.
• High dust content, if excessive can reduce the adhesion of asphalt concrete.

1. Selection criteria

• Uniform size, avoid mixing too large or too small particles.
• High cleanliness, no soil, clay, organic impurities.
• Reasonable dust content, not too high to avoid affecting the adhesion of asphalt concrete.

2. Storage and transportation

• Avoid contact with water, avoid washing away important fine particles.
• Do not mix with other types of stone, ensure the particle composition meets the standards.
• Store in a dry place, avoid contamination from soil and sand.

0x5 stone is an important fine aggregate in asphalt concrete, helping to increase adhesion, reduce voids and improve road surface durability.

• Main applications: Fine asphalt concrete layer, road surface layer, subbase layer.
• Applicable standards: TCVN 8819:2011, ASTM D1073.
• Notes when using: Ensure cleanliness, control dust content and store properly before construction.