Dmax 37.5 stone factory running mesh 0x40mm

Dmax 37.5 stone is the type of stone with the largest particle size (Dmax) of 37.5 mm. This type of stone is often crushed from natural stones such as granite, limestone, basalt… and is widely used in the construction of traffic infrastructure, civil and industrial works. Classification and origin of Dmax 37.5 stone

Dmax 37.5 stone can be classified according to:

• Origin of formation:

• Crushed granite: Hard, durable, less weathered.
• Crushed limestone: Softer than granite, easy to process, but less durable.
• Crushed basalt: Very high strength, resistant to weather and chemicals.

• Purpose of use:

• Graded crushed stone (used in roadbed).
• Concrete stone (used in cement concrete structures).
• Paving stone foundation of the project.

Applications of Dmax 37.5 stone

Dmax 37.5 stone is used in many fields, including:

1. In road construction

• Making the base layer crushed stone aggregate (type 1 and type 2) according to TCVN 8859:2011.
• Making the base layer, subbase layer for asphalt concrete pavement.
• Stabilizing the roadbed, helping to withstand loads well and reduce deformation.

2. In cement concrete

• Used in high-grade concrete (≥ 300) to build bridges, culverts, and concrete roads.
• Making large-block concrete, helping to reduce the amount of cement needed.

3. In construction foundations

• Making house foundation cushions, bridge and road foundations.
• Reinforcing weak soil in irrigation works, sea dykes, and dikes.

4. In irrigation works

• Making bank revetments, preventing erosion.
• Reinforcing dam bodies and water channels.

The physical and mechanical standards of Dmax 37.5 stone are determined according to TCVN 7570:2006 or ASTM C33.

1. Graincomposition

2. Important physical and mechanical indicators

• TCVN 7570:2006 – Requirements for coarse aggregates for concrete.
• TCVN 8859:2011 – Regulations on grading of crushed stone in roadbed.
• ASTM C33 – American standard for aggregates for concrete.

1. Advantages

Good load-bearing capacity – High strength, suitable for heavy-duty constructions.

Structural stability – Good durability, not easy to weather.

Multi-purpose – Can be used in many fields such as roads, concrete, foundations, etc.

Reduces concrete shrinkage – Large size helps reduce the amount of cement needed.

2. Disadvantages

Large weight, more difficult to construct than smaller stones.

Requires strict quality control to ensure size and cleanliness.

Not suitable for small-thick concrete due to large stone size.

1. Selection criteria

• High cleanliness, low dust, low impurities.
• Grains are angular, not too many flat grains.
• High compressive strength, suitable for the purpose of use.

2. Storage and transportation

• Avoid mixing mud and soil during storage.
• Pile properly, avoid mixing with other types of stone.
• Store in a dry place, avoid long-term water absorption which reduces the quality of the stone.

Dmax 37.5 stone is an important material in construction and transportation, with high bearing capacity, suitable for road foundations, high strength concrete and foundation reinforcement. The selection of stone must comply with technical standards to ensure the quality of the project.

• Main applications: Road foundations, cement concrete, foundations.
• Applicable standards: TCVN 7570:2006, TCVN 8859:2011, ASTM C33.
• Notes when using: Ensure the grain size meets the standards, control the quality before construction.