What materials to make paver block ?
News 2023年3月14日 173
- Cement (42.5 Cement)
Generally, the cement used for floor tiles is 42.5 cement. Common cement labels are 225, 325, 425, 525, etc. In terms of price, 42.5 cement is slightly more expensive, mainly because its strength is much higher. 425 cement The initial setting time is not less than 45 minutes, and the final setting time is not later than 10 hours. 425 mainly refers to the label of cement strength, indicating that the compressive strength of cement is 42.5mpa.
42.5 cement belongs to hard cement, and its compressive strength is better than 325 cement. The 28-day compressive strength is not less than 42.5mpa. 425 cement is generally used for concrete, laying streets, floors, building houses, large pillars, and beams of bridges. Board, etc., 325 cement can be used in home construction.
The cement cannot be used immediately after it has solidified. It needs to be watered for more than three days. The purpose of this is to hydrate the cement, so that the various ingredients in the cement can be tightly combined to meet the strength requirements.
2.water
Water is the basic need for the production of cement products, the main function is to hydrate the cement.
There is a certain proportion of water added, and it cannot be added at will. The bricks made according to a certain proportion will be harder and more durable.
3.Stones
Construction stones are divided into cobblestones, pebbles and crushed stones.
Cobblestone: Rock particles with a particle size greater than 4.75mm formed by natural weathering, water transport, sorting, and accumulation. Natural cobblestone 8-10cm can also be used in the construction industry, building filling, paving, cobblestone wall decoration, etc.
Crushed stone: Rock particles with a particle size larger than 4.75mm made of natural rock, pebbles or mine waste rock by mechanical crushing and screening. · Rock particles with a particle size greater than 4.75mm made of natural rocks or pebbles by mechanical crushing and screening
Generally, 5-10mm crushed stone can be used to make floor tiles. There is a certain strength in the raw materials of cement paving bricks, which can make the bricks harder.
4. Brightener
Brightener can make the finished cement paving bricks brighter and more lustrous, so brightener can be added to the paint layer to make the finished cement paving bricks more beautiful.