Economic World: According to the decision of the General Administration of Market Supervision, since the beginning of September, all enterprises producing steel billets, blooms and slabs must register information in the integrated trade system and the integrated warehouse system. According to Tasnim News Agency, according to the approval of the 97th meeting of the working group of the General Administration of Market Supervision, from September 1 this year, all enterprises producing steel slab billets, billets and slabs will be required to provide initial inventory information. production, sales, consumption, arrival. In the integrated transaction system and the integrated warehouse system, register your goods out of the warehouse according to the timetable. A structure consists of many connected building elements such as walls, beams, columns, foundations, floors. Among them, the tablet is the most important. This allows other parts of the building element to bear different loads. There are different types of slabs in construction.
Steel
But in this article, we will examine the types of concrete slabs in detail. What is building board? Slabs are structural elements made of concrete that are used to create smooth and horizontal surfaces such as floors, roofs, and ceilings. A slab is usually several inches thick, usually between 100 and 500 mm, and is supported by beams, columns, walls, or floors. Types of concrete slabs used in construction
- Tablet
- Normal slab
- Hardboard
- Waffle
- Sunken slab and other plates
- Flat Slab
A slab is also called a beamless slab because it is directly supported by a column or cover. Here, the load is transferred directly to the column. The task of this type of slab is to provide a simple roof surface that provides optimum light diffusion. They are typically used in hotels, parking lots, commercial buildings or where beams are not suitable for height control or even aesthetics.
Slab steel rod size frame insulation
Slab Steel Details
A slab is a structural element made of concrete and used to create flat and horizontal surfaces such as floors, flat roofs, and ceilings. A slab is ordinarily a few inches thick and is bolstered by bars, columns, dividers, or the floor.
- Conventional slab
Slabs supported by beams and columns are called plain slabs or plain slabs. In these types, the slabs have a smaller thickness, and the beams have a larger depth and are passed to the load-bearing beams and then to the columns. It requires more molds than a flat plate. There is no need to set column caps for ordinary floor slabs.
- Hardy slab
This type of slab is made of durable brick, made of hollow brick and concrete. These bricks are used to fill thick slab areas, which saves the amount of concrete and thus the slab weight. These types of slabs are commonly found in Dubai and China. This board is used in areas with very high temperatures. The thickness of the slab increases to withstand the temperature from the top of the slab. Neutralize the heat of the walls by using special bricks that contain thermocol.
- Waffle Slab
A waffle board is also known as a lattice board. It is a square grid reinforced concrete roof or floor with deep sides. Such floor slabs are mainly used for good image viewing and installation of artificial light at the entrance of hotels, shopping malls, restaurants. This is a slab and when you remove the mould you can see a cavity in the slab. PVC sheets (sheets) are first placed on the valve, then a steel mesh is placed between the reinforcing sheets and above the sheath, and then filled with concrete. After the concrete is solidified, the mold is taken out, and the PVC part is not separated. This slab is mainly used in industrial and commercial buildings, while wood and metal waffle boards are used on many construction sites.
How are steel slabs made large
Function Of Steel Slabs
Tablet Features: It acts as sound insulation, heat insulation and fire protection. It provides shelter or a flat work surface in buildings. Its main function is to transmit loads by bending in one or two directions.
- Provide a smooth surface
- Support the load
- Sound insulation, heat insulation, fire protection
- The upper floor becomes the roof of the lower floor
- The space between the floor and the roof can be used to place building facilities
A board placed under the toilet to hide the sewer or toilet seat plumbing or other fixtures is called a recessed board. Since the pipes through which the water passes are hidden under the floor, care must be taken to avoid leakage problems.
The sinking board should be adequately waterproofed and treated to prevent leakage or moisture. After the downpipes have been poured in the slab, the slab is filled with bricks or coals or a suitable lightweight material. This type of slab is commonly used in the construction of bridges. Bridges are subject to horizontal loads due to flooding, wind loads and moving vehicle loads. Where it is necessary to change the direction of the wind load, if there is a long curve in the direction of the slab, use a slab with an arch. Resist high wind loads. They were originally made of brick or stone, but today they are made of steel and reinforced concrete. A slab in which the reinforcement is stretched before concrete is poured is called a prestressed slab. The plates have the same post-tensioning properties.
- b) Post-tensioned slabs: Floor slabs in which steel cables or bundles are stretched after concrete is poured are called post-tensioned slabs. Reinforcement members are provided to resist compression. In this plate, the reinforcing bars are replaced by steel cables/tendons.
Temperature Steel Slabs
Steel Slab temperature is for this billet operation, hot charging above the bainite formation temperature, which is approximately 873 K (600 °C) for Q550D steel sheets, is recommended. Some continuously cast billets are susceptible to transverse fracture problems during transportation or handling from their storage condition, while some billets are susceptible to transverse surface cracks during subsequent rolling within a given hot charging temperature range. Studies have shown that billets with a high fracture tendency at room temperature always contain pearlite transformation retarding elements, which lead to the formation of brittle bainite microstructures inside, while some micro alloyed steels have high surface resistance due to carbonitride precipitation. equal to the temperature of the hot charge. Susceptibility to leave. According to the calculated internal cooling rate and the CCT map, slabs that tend to fracture more during cold loading should be cooled slowly after being cut to a certain length from heat flow or directly loaded above their bainite formation temperature. Based on thermodynamic calculations of carbonitride precipitation in austenite, a sensitive hot loading temperature range for the respective steels is shown, which can be used to determine a reasonable temperature schedule. The temperature was recorded until reaching a value equal to the initial temperature of the soil under the plate. The temperature measurement device used, and the location of the measurement points are shown in Figure 7.7. The temperature sensor is located 72 cm below the surface of the slab (half thickness). The location of the thermal sensor was chosen according to the suggestion of Azenha et al. The recorded temperature-time curve is shown in Figure 7.8. The maximum temperature difference between the concrete temperature inside the slab and the air temperature in the test chamber is equal to 27 degrees Celsius. 
Slab Steel Ratio
The minimum reinforcement ratio is the minimum amount of reinforcement that should be embedded in the concrete members of the structure to prevent premature failure after losing tensile strength. The least fortification proportion controls the splitting of concrete members. The maximum reinforcement ratio is the maximum area where reinforcement can be placed in concrete members such as columns and beams. In reinforced concrete beams, providing additional reinforcement above the maximum reinforcement ratio will not be beneficial because the concrete will be crushed before the full strength of the steel is used. The collapse of the concrete structure was sudden and there were no signs of failure before. The maximum reinforcement ratio ensures the economy of concrete elements and provides safety against brittle failure of concrete. And Steel sheets are available in stainless steel, but carbon steel is the most common. The chemistry varies, but important elements include iron, copper, chromium, molybdenum, manganese, nickel, and silicon. Composite panels with profiled metal trim panels provide a cost-effective solution for floors in metal frame building systems. This is because it is easier to install, lighter in weight and faster to operate than precast, prestressed, and solid slab systems for steel frame buildings. The combined action of this floor system is achieved by welding steel studs to the top flanges of the steel beams and embedding the studs in the concrete during the pouring process. The maximum amount of steel required for 1 cubic meter of concrete slab is 1.5%, now 1.5% of 1m3 = 0.015m3, we know that the weight of 1m3 steel is 7850 kg, so the weight of 0.015m3 steel = 0.015×7850 = the maximum amount of steel used is 118 kg, 1 cubic meter of concrete slab is required to be 118 kg. 
Conclusion All mentioned information above provides for buyers who want to buy Steel Products. As per market report steel products demand increasing day by day compare to last year, so that’s why our mission is seeking to find our place in international market with best quality and competitive price for the buyers and we guarantee the best market for steel products.
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