Production of artificial sand and gravel aggregates by sand making machines to improve the performance of dry powder mortar

The production of artificial sand and gravel aggregates using sand making machines can indeed improve the performance of dry powder mortar. The properties of the sand and aggregates, such as particle size distribution, shape, and surface texture, play a crucial role in the strength and workability of the mortar. Here's how the production process can enhance mortar performance:

1. **Controlled particle size**: Sand making machines are designed to produce aggregates with a consistent particle size, which is essential for achieving a workable and strong mortar mix. The ability to control the particle size ensures that the mortar has the right balance of fine and coarse particles.

2. **Optimal particle shape**: Sand making machines, particularly vertical shaft impactors (VSI), are capable of producing cubical or elongated particles. Cubical particles provide better packing and higher interlocking, which can significantly improve the strength of the mortar.

3. * * Improved adhesion * *: The surface texture of aggregates can affect the bonding with cement (cement) particles. Carefully produced artificial sand can have a rougher surface texture, which can enhance the bonding with cement particles and produce stronger mortar.

4. **Reduced impurities**: By using sand making machines, the production process can be controlled to minimize the inclusion of impurities, such as organic matter or excessive fines, which can negatively affect mortar performance.

5. **Enhanced workability**: The consistent particle size and shape provided by sand making machines can lead to improved workability of the mortar, making it easier to mix, place, and compact.

6. **Better durability**: The improved particle shape and size distribution can lead to a mortar with better durability, as the aggregates will provide more effectiveforcement and resistance to wear and tear.

7. **Environmental benefits**: Artificial sand production using sand making machines can help reduce the consumption of natural sand, which is often limited in supply and can be environmentally damaging to extract.

It's important to note that the production process and the quality of the sand and aggregates are critical factors. The sand making machines and the production parameters (such as rotor speed, feed rate, and cavity design) should be carefully selected and controlled to optimize the properties of the artificial sand and aggregates. Additionally, the mortar mix design, including the proportion of sand to cement and the addition of admixtures, should be tailored to the specific application to ensure the best performance.

Quality control and testing of the produced sand and aggregates are also essential to ensure that they meet the required specifications for use in dry powder mortar applications. This may include tests for particle size distribution, shape, durability, and strength.