Performance comparison of manufactured sand and natural sand
Machine-made sand is a kind of artificial sand obtained by processing granite, pebbles, limestone, etc. through crushers, sand making machines, and sand washing machines. This article is about feature of manufactured sand, M sand process, equipment. The compare of m sand and river sand.
Why use manufactured sand
1. Factory production, quality can be guaranteed.
Factory production can establish a quality monitoring system from a series of technological processes such as material selection and crushing. The production conditions are good and the quality of sand is guaranteed.
2.Good physical and mechanical properties of sand
It is possible to consciously select hard rock to produce machine-made sand, avoid soft and weathered rocks, and at the same time, the amount of mud (lumps) can be manually screened and controlled. The chemical composition is the same as the base material and crushed stone, and has no negative effect on the concrete. It is suitable for high-strength concrete.
3.The particle gradation and fineness modulus of manufactured sand can be adjusted.
According to the needs of the project, the fineness modulus and particle gradation of manufactured sand can be adjusted in combination with the characteristics of the base material and the requirements of concrete. The adjustment measures are mainly completed through the selection of crushing equipment and technological processes.
The advantages of nature sand
2. Manufactured sand contains a certain amount of stone powder. Although the particle size of stone powder and mud are both less than 0.075 mm, their composition is different, and the difference in fineness is also large. Most of the mud particles are smaller than 0.016 mm, while most of the stone powder particles are between 0.0116 and 0.075 mm. Mud is adsorbed on the surface of sand and hinders the bonding between sand and cement; and a proper amount of stone powder can be filled in the gaps between cement and fine sand to enhance the workability of machine-made sand concrete.
Granite sand washing production line configuration plan (customizable)
Each user’s needs and site conditions are different, and the required granite sand washing production line configuration plan also has some differences.
Common granite sand washing production line configuration scheme:
Granite has low mud content
Feeder + sand washing machine + vibrating screen + fine sand recovery machine + conveyor.