What is the specification size of cement bricks in general

Summary: Cement brick is a kind of wall material without high temperature calcination, it is mainly the use of cement coagulation, fly ash, cinder, gangue, chemical slag and sea mud in one or more materials coagulated together, compared to other construction materials, the production method is relatively simple. The more common cement brick specifications on the market is 240*115*53mm standard brick; 240*115*90mm eight hole brick; 390*190*190mm hollow brick and other specifications. Below together to understand the size and characteristics of cement bricks. Introduction to cement bricks

Cement bricks refers to the use of fly ash, cinder, gangue, tailings slag, chemical slag or natural sand, mud, etc. (one or more of the above raw materials) as the main raw material, cement as a coagulant, without high temperature calcination and the manufacture of a new type of wall materials known as cement bricks.

Cement bricks are lighter in weight, higher strength, no need to burn, with the pollutants of the power plant fly ash as material, more environmentally friendly, the country has been vigorously promoted. The only disadvantage of this type of block is that the combination with the plaster mortar is not as good as red brick, easy to produce cracks in the wall, affecting the aesthetics. Construction should be fully sprayed with water, the higher requirements of the villa class can be considered full wall hanging wire mesh, can effectively prevent cracks.

What is the general size of the cement brick specifications

Cement bricks are generally divided into six-hole bricks, eight-hole bricks and hollow bricks three.

Six-hole bricks are used most, of which the specification of 240mm * 115mm * 53mm six-hole bricks is the largest application of one, known as the standard brick or standard brick;

Eight-hole bricks most commonly used specification of 240mm * 115mm * 90mm;

Hollow most commonly used specification is 390mm * 190mm * 190mm.

Other specifications are 240mm*135mm*40mm and 250mm*150mm*60mm.

What are the characteristics of cement bricks

1, significant economic benefits. The production cost of cement bricks, the market price will vary depending on the raw materials and other costs around the world. Red bricks are significantly more cost-effective.

2, production technology is mature. The use of high-pressure molding technology, cement bricks have good compactness, low water absorption, good frost resistance, high strength. With these advantages, it can be applied to various urban construction projects.

3, the cost is relatively low. Can be mixed in the environmental protection cement brick more than 80% of the stone powder, waste stone or construction waste, etc., so that the cost of cement will be greatly low, in addition to reducing the cost of raw materials, but also enjoy the tax exemption policy.

4, the product is widely used. Cement brick with its own advantages in the garden, residential district, colleges and universities, factories, sidewalks, plazas and other landscaping on a fairly wide range of applications.

5, small investment in equipment. Into the production speed, the establishment of an annual output of 60,000 square meters ~ 120,000 square meters of color pavement brick production line, equipment investment is small, and from the equipment installation and commissioning, training of workers, to the formation of mass production capacity of a short period of time.

Cement brick structure composition

1, clay: to contain a certain amount of loose particles, in order to facilitate the mixing of cement. Clay with less sand, can be matched with sand in the soil. Clay with less sand and harder, shall be ground and then with sand.

2, cement: mixed with 10% of 425 # common silicate cement, can improve the strength of the brick and water resistance, water immersion does not crack. Otherwise, the general brick will be cracked.

3, additives: mixed with a small amount of additives (reinforcing agent), in addition to improving the hardening strength of the brick, but also reduce the amount of cement, reduce product costs.

4, water: appropriate water consumption, brick strength is high. Molding water is less, the strength of the brick is poor, the material in the mold resistance, one-sided pressure, the bottom of the brick is not dense; molding water is more, the bottom of the wet, out of the mold is easy to touch the bad. When the sand moisture content of 3-5%, molding water consumption of 10% is appropriate. If the raw material is too much fine sand, it is reduced to 8%.