The second phase of the expressway project requires sand and stone material standards

The second phase of the expressway project is underway, and the demand for high-quality sand and stone materials is on the rise. To ensure the successful completion of the project and meet the required specifications, it is crucial to establish clear sand and stone material standards. These standards will guide the selection, processing, and usage of these materials, ultimately contributing to the overall quality and durability of the expressway.

Sand standards for the expressway project should focus on several key aspects:

1.Particle size and shape：Sand particles should be evenly sized and shaped, with a well-distributed gradation. This will ensure optimal compaction and cohesion, leading to a stronger and more durable road surface.

2.Mineral composition：The sand should have a consistent mineral composition, free from impurities that could negatively impact the performance of the expressway.

3.Humidity and moisture content：The sand should have a low moisture content, as high moisture levels can lead to reduced strength and stability.

4.Soluble salt content：The sand should have a low content of soluble salts, which can cause detrimental effects on the expressway's durability and resistance to corrosion.

5.Particle compactness：The sand particles should be closely packed, ensuring optimal density and reducing the likelihood of voids and settling.

For stone materials, the standards should address the following aspects:

1.Rock type：The stone should be of a type suitable for road construction, such as granite, limestone, or dolomite.

2.Size and shape：The stones should be evenly sized and shaped, with a well-distributed gradation. This will ensure better compaction and cohesion, leading to a stronger road surface.

3.Strength and hardness：The stones should have a high degree of strength and hardness, as this will contribute to the durability and resistance to wear of the expressway.

4.Wear resistance：The stones should be resistant to abrasion and impact, ensuring that the road surface remains intact despite the constant traffic and exposure to elements.

5.Chemical composition：The stones should have a consistent chemical composition, free from impurities that could negatively impact the performance of the expressway.

Establishing clear sand and stone material standards for the second phase of the expressway project will ensure the selection of high-quality materials that meet the required specifications. This will ultimately contribute to the successful completion of the project and the creation of a durable and safe expressway for public use.