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It is welded by flat steel and twisted square steel or flat steel and flat steel. Rainwater grate has the advantages of beautiful appearance, better drainage, height, multiple specifications and low cost, so steel grating rainwater grate is usually used. With the development of science and technology, a new composite water grate is formed by using resin or plastic reinforcement and inorganic filler. Its advantages are that its dead weight is lighter than that of cast iron water grate, its cost is lower, and its disadvantage is that its strength is not as high as that of cast iron water grate. According to specific classification, rainwater grate mainly includes: ordinary rainwater grate, tubular rainwater grate, U-shaped rainwater grate and anti-theft rainwater grate.

2023/08/29 13:51:21

1. Light weight: the weight of the product is only about one-third of that of cast iron, which is convenient for transportation, installation and emergency repair, greatly reducing labor intensity. 2. Anti theft property: the synthetic material has no recycling value and is naturally anti-theft; A locking structure is provided to prevent property theft in the well. It can completely eliminate the occurrence of "urban black hole" accidents. 3. Strong weather resistance: The product uses high molecular weight and chemical stability polymer materials as raw materials. Through scientific formula, advanced technology and perfect technical equipment, the product can be used normally at - 50 ℃ - 150 ℃. 4. High precision: because the product is molded at high temperature, the cover

2023/08/29 13:50:33

The rectangular inspection well concrete block includes the matched concrete straight block and the matched concrete corner block. The top surface of the straight block is provided with a bulge, the bottom surface is provided with a clamping groove, the left end surface is provided with a bulge, and the right end surface is provided with a clamping groove, The bulge can be clipped into the slot of adjacent concrete straight blocks or upper and lower concrete straight blocks, so that the adjacent concrete straight blocks match each other, and the upper and lower concrete straight blocks match each other accurately, which is not easy to move, and forms vertical and horizontal pouring space, which is conducive to the filling of concrete and waterproof mortar; The concrete corner block has

2023/08/29 13:49:48

The characteristics of concrete modular manhole The concrete module is made of sand, stone, cement, fly ash and other raw materials in a certain proportion, vibrated with high frequency, and extruded vertically. It is a * * * product. The concrete modular manhole has changed the disadvantages of the traditional brick manhole and cast-in-place well, such as slow construction progress, clumsy technology, high strength, easy structural settlement, etc., effectively preventing the displacement and subsidence of the well body, solving the common problems on the road manhole, forming a chain during masonry, and ensuring the integrity and stability of the masonry structure. 1. Modularization. The basic size of the arc module applied to the circular inspection well is to cut all kinds of well types as a whole, and use the perimeter and straight

2023/08/29 13:49:03

The shape and size of concrete module bricks and masonry requirements, new concrete labels and reinforced steel standards. However, for the prefabricated well (module) of the bottom plate of the new concrete inspection well, during the process of strengthening the pipeline, the installation project is carried out before the new concrete inspection (module) is carried out in time. The demand between the new concrete pipeline and the reserved well for inspection is in a gap, and the requirements of this area are unlikely to be controlled in the construction site. If not properly treated or treated, there will be a certain amount of water seepage. Health) condition. The main characteristics of the concrete module in the inspection are very good. The concrete module consists of raw materials, such as

2023/08/29 13:48:16

1. There are many kinds of bricks in the market, including hollow bricks, solid bricks, perforated bricks, foam bricks, aerated bricks, etc. When we use bricks to build walls, we should choose the type of bricks. For example, we can use light brick materials such as foam brick, perforated brick and aerated brick to build partition wall indoors. These bricks are light in weight and can reduce floor load. If the local area is an earthquake prone area, people should not use hollow bricks to build walls, because the seismic resistance of this type of bricks is not very good. 2. When we use bricks to build walls, we should water the bricks in advance, because the bricks have a certain water absorption. If we use dry bricks to build walls directly, the wall will be

2023/08/29 13:20:44

There are 60 × 10 × 20cm, 60 × 24 × 20cm, 60 × 15 × 24cm, 60 × 30 × 30cm, 60 × 25 × 10cm and other specifications. You can also customize concrete bricks of different sizes according to your own needs. Concrete bricks are widely used for building walls, which have the advantages of good seismic resistance, high strength, good sound insulation, etc., but these bricks are expensive and bulky.

2023/08/29 13:19:56

The concrete module of sewage inspection well is mainly applicable to municipal engineering, outdoor precipitation of industrial and industrial buildings and non corrosive sewage pipeline engineering. It is applicable to annular and square sewage inspection well with diameter D ≤ 2000mm of precipitation pipe, diameter D ≤ 2000mm of pipe top filling not more than 4m, diameter Ds1500mm of wastewater pipe, and diameter of pipe top filling not more than 6m. Type: applicable to annular concrete modules of sewage inspection wells with nominal diameters of 700mm, 800mm, 900mm, 1000mm, 1100mm, 1300mm, 1500mm and their parallel wells, 90 ° three-way wells and 90 ° four-way wells

2023/08/29 11:39:30

The left and right sides of the module are provided with concave convex groove structure, which forms a chain after masonry. The shear resistance of shaft wall in all directions is better than that of flat friction masonry. Third, core injection hole analysis. The module is a hollow structure, which forms a cast-in-place concrete mesh structure after core pouring, playing the role of reinforcement and water closure. The masonry construction technology of concrete modular manhole is simple, flexible and convenient, and has the characteristics of good pressure bearing, shear resistance, low cost, corrosion resistance, environmental protection and energy conservation of concrete structure; The structural strength is very high, because there are concave and convex connecting structures around the module, which form a chain during masonry, ensuring the integrity and stability of the masonry structure. New hybrid

2023/08/29 11:29:52

1. Making mold: cut the wood plate into corresponding shapes according to the size and shape of the wellhead, and then splice the wood plate into a complete mold. 2. Reinforcing steel bars: fix the steel bars at the bottom and around the mold. The length of the steel bars should be about 10cm higher than the height of the mold, which can enhance the bearing capacity of the well cover plate. 3. Mixing cement and sand: Mix cement and sand evenly in a ratio of 3:1, and then add appropriate amount of water to mix them into a paste. 4. Pour into the mold: pour the mixed cement paste into the mold, and compact the cement paste with a wooden stick to ensure that the cement paste fills the entire mold. 5. Maintenance:

2023/08/29 11:28:35