stone crusher dust as fine aggregate in concrete paving block

Introduction

Concrete paving blocks are a common sight in many urban and suburban areas. They are often used for paths, walkways, and driveways because they provide a durable and easy-to-maintain surface. One of the ingredients in concrete paving blocks is stone crusher dust.

Stone crusher in concrete crushing plant

As we all know, the stone crusher is an indispensable equipment in the concrete crushing plant. It can crush the large stone into small particles and sand with ideal particle size. It is widely used in many industries such as mining, metallurgy, building materials, highway, railway, water conservancy and chemical engineering.

The stone crusher has two types: jaw crusher and impact crusher. The jaw crusher can crush all kinds of hard and soft materials with compressive strength less than 320 MPa, such as granite, quartzite, diabase, pebbles, etc. The impact crusher is widely used for secondary crushing. It can crush all kinds of coarse, medium and fine materials with compressive strength less than 350 MPa and moisture content not more than 15%.

The crushed material from the stone crusher is called stone dust or quarry dust. It is often used as a fine aggregate in concrete paving blocks. The main advantages of using stone dust are:

1) It provides a better workability than regular sand due to its small particle size.
2) It requires less water for mixing and compaction.
3) Stone dust is cheaper than sand.
4) Itis a by-product of stone crushing, so it will not add to the cost of construction.
5) It is eco-friendly since it does not require any mining or quarrying.

What equipments are needed in aggregate line?

In order to produce high-quality concrete paving blocks, various types of equipment are needed in the aggregate production line. This includes crushers, screens, conveyors, and other ancillary equipment.

One of the most important pieces of equipment in the aggregate line is the crusher. The crusher will reduce the size of the raw materials, which will then be transported to a screen. The screen will sort the materials by size, and the conveyor will then transport them to the appropriate storage area.

Other ancillary equipment that may be used in the aggregate production line includes loader/unloaders, magnetic separators, and dust collectors.

Advantages of using stone crusher dust as fine aggregate in concrete

There are many advantages of using stone crusher dust as fine aggregate in concrete. Paving blocks made with stone crusher dust have a number of advantages over those made with natural sand. The main advantage is that the blocks are stronger and more durable. Stone crusher dust is also much cheaper than natural sand, so it can be used to make concrete paving blocks at a fraction of the cost.

Another advantage of using stone crusher dust is that it can help to improve the drainage of concrete paving blocks. The dust can help to fill any voids in the block, which will help to prevent water from pooling on the surface. This can be especially beneficial in areas that are prone to flooding or where heavy rains are common.

Stone crusher dust also has a number of other uses. It can be used as a filler material in construction projects, or it can be used to make garden paths and walkways. It is also sometimes used as an additive in animal feed.

Conclusion

The study has shown that the concrete made with 20% replacement of sand by crusher dust yields higher compressive strength than natural sand concrete. Similarly, water absorption and porosity of crusher dust concrete are lower than those of natural sand concrete. Therefore, it can be concluded that the use of crusher dust as fine aggregate in concrete paving blocks is a viable option.