The use of porous bricks in the building materials industry is still very important and extensive. Porous brick refers to clay, pulverized coal and shale as the main raw materials, which are formed and roasted. The void rate is generally not less than 15% to 30%. The hole pattern of perforated brick is generally round or non-round hole, the number of holes is large and the size is small. The main purpose of the porous brick is to be used for the load-bearing parts of the brick-concrete structure. Then. Today we will take a look at the characteristics of porous bricks and the scope of use.
Characteristics of porous brick
1. Porous brick is a concrete product with multiple rows of small holes, which is made of cement as a cementing material, mixed with sand, stone and other water, formed and maintained.
2. It is a new variety of wall materials.
3. Low production energy consumption, land saving and waste, convenient construction and light weight, high strength, good thermal insulation effect, durability, small shrinkage and deformation, regular appearance and other characteristics.
Scope of porous brick
1. The scope of use can refer to the current masonry standards. It can directly replace the sintered clay bricks in various building wall structures such as various types of load-bearing, heat-insulating load-bearing and frame filling, and has a broad application prospect.
2. Help to reduce and eliminate the production and use of sintered clay bricks, which is of great significance for improving the environment, protecting land resources, and promoting the innovation of wall materials and building energy conservation.
Precautions for porous brick
1. During loading, unloading and transportation, perforated bricks are strictly prohibited to be dumped and thrown. They should be stacked neatly on a solid site according to grade, and the height of the stacking should not exceed 2m.
2. Under normal temperature conditions, porous bricks should be watered and wetted 1 to 2 days in advance.
3. The weight ratio of mortar should be weight ratio, the mud content of sand should not exceed 5%, and the consistency of mortar should be controlled at 70-90mm.
4. The masonry should be staggered up and down and overlapped inside and outside.
5. Before the masonry, consider the method of grouping, pay special attention to the row of bricks at the joints, and conduct a trial row. The holes of the porous brick should be perpendicular to the pressure surface; the porous brick can not be cut, if necessary, cut on site or use a small amount of solid brick.
6. When the masonry is connected, the surface of the connection must be cleaned, wet with water and filled with mortar to keep the mortar joint straight.
7. The masonry gray joints should be horizontal and vertical, the thickness of the horizontal and vertical gray joints should be 8mm to 12mm, the fullness of the masonry horizontal gray joints should not be less than 80%; the vertical gray joints can be added with mortar Filling or ashing the head to make the mortar full. It is strictly forbidden to grouting with water, and the depth of the scratch should be controlled between 5mm and 12mm.
Edit Summary: These are the characteristics of porous brick and small series about the scope and precautions for use of porous brick introduce friends. After reading this article, you should have a more comprehensive understanding of the relevant knowledge and precautions of porous bricks.
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