what is the process of concrete block production?
Selection of raw materials:
The main raw materials for concrete blocks are cement, sand, crushed stones, etc. Cement is the main material for stabilizing block structures, while sand and gravel are the “fillers” of cement, which can provide a certain degree of stability and density. Therefore, a good selection of raw materials is the primary factor in ensuring the quality of building blocks.
Characteristics of various materials:
1. Cement: Cement has strong adhesion and can bond various parts of concrete bricks together, forming a dense structure. However, if the amount of cement used is too small, the strength of concrete bricks will decrease; Excessive use can lead to a decrease in the shrinkage of concrete bricks.
2. Aggregates: Aggregates are the main load-bearing material of concrete bricks, and their quality directly affects the strength and durability of concrete bricks. High quality aggregates have advantages such as high hardness, sharp angles, good elasticity, and strong waterproofing.
3. Sand: Sand is used to fill the gaps in concrete bricks, increase the density of the bricks, and also play a role in reducing the shrinkage rate of concrete bricks. The quality of sand also directly affects the strength and waterproofing of concrete bricks.
4. Water: Water is the key to mixing various materials to form concrete bricks. An appropriate amount of water can give concrete bricks a certain degree of pouring ability, but excessive use can lead to an increase in the shrinkage rate of concrete bricks.
Processing of concrete blocks:
1. Mixing: stirring the selected raw materials . During the mixing process, adjustments should be made according to different types of raw materials to ensure that the mixed product meets the standards.
2. Vibration compression molding : Pour the mixed mortar into a concrete block machine hopper and compress it into bricks through vibration and pressure. In this step, attention should be paid to controlling the vibration time and pressure to ensure the density and strength of the bricks.
3. Curing: After molding, bricks need to undergo a period of curing process to ensure their strength and hardness. Usually, wet curing methods are used, such as spraying bricks with water and covering them with a canopy, to provide them with sufficient moisture and air.
