What is the amount of cement per square meter of cast in place floor slab

The thickness of the cast-in-place floor slab is different according to the house type. Most of the national standards are 80-160mm, and the thickness of the cast-in-place floor slab depends on the location of the floor slab size and reinforcement according to the design requirements;

The thickness of the floor slab of a general residential building is 80-160mm depending on the use, bay size, reinforcement, concrete strength, etc. If it is thicker, it is generally added to the beam, otherwise the dead weight is too large. The appropriate thickness is calculated by the designer, and the allowable error is -5mm +8mm.

If it is a frame structure, the steel content is calculated by 50kg per square meter, and if the foundation is relatively good (using a single foundation or a shallow strip foundation), about 6 tons is enough.

1. Determine how much concrete is used per square meter to convert the thickness of the floor slab.

2. The cast-in-place reinforced concrete floor slab refers to the floor slab made by supporting the formwork, binding the steel bar, pouring concrete, and curing and dismantling the formwork according to the design position on the site.

3. Construction process: pay-off, shoveling wall skin, drilling, hole cleaning, formwork erection and installation, glue matching, glue potting, reinforcement bar production and binding, pouring concrete, concrete curing, dismantling of formwork, and completion cleaning.

4. The amount of steel bars per square meter: the amount of steel bars in housing construction is related to the foundation, structural form and building layout. It depends.

Summary. 1. Cast-in-place concrete mix ratio.

Concrete mix ratio:

1. C20: water: 175kg, cement: 343kg, sand: 621kg, stone: 1261kg. The mix ratio is:

2. C25: water: 175kg, cement: 398kg, sand: 566kg, stone: 1261kg. The mix ratio is:

3. C30: water: 175kg, cement: 461kg, sand: 512kg, stone: 1252kg. The mix ratio is:

How to mix cast-in-place floor slab concrete.

1. Cast-in-place concrete mix ratio.

Concrete mix ratio:

1. C20: water: 175kg, cement: 343kg, sand: 621kg, stone: 1261kg. The mix ratio is:

2. C25: water: 175kg, cement: 398kg, sand: 566kg, stone: 1261kg. The mix ratio is:

3. C30: water: 175kg, cement: 461kg, sand: 512kg, stone: 1252kg. The mix ratio is:

What is the ratio of 8 m x 8 m cement sand and gravel of cast-in-situ floor slab.

The ratio of cement sand and gravel of cast-in-situ floor slab, the ratio of cement and gravel to sand is 1 to 2 to 3, which is a bag of cement, two quintals of stones, and three quintals of river sand.

Summary. Cast-in-place floor slab is made of cement for one square, and the cement is generally made of 325 grade (to be the national standard) cement and sand in proportion, which is generally about 1:3.

What is the amount of cement per square meter of cast-in-place floor slab

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Hello, I have inquired for you that the amount of cement per square meter of cast-in-place floor slab is.

Now trapped in the trousers pouring the floor slab a flat Wang Jianfang with cement, cement is generally made of 325 marks (to the national standard) cement and sand have a ratio, generally about 1:3. Splitting.

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At least use the number, and cement below this number is no longer commonly used.

At present, the most designed floor slab concrete is C30, and there are C25 below this mark, which is not used much.

The main load-bearing components of reinforced concrete structures are constructed with reinforced concrete. It includes thin shell structures, cast-in-situ structures of large formwork, and reinforced concrete structures constructed using sliding formwork, rising plates, etc. A structure made of steel and concrete.

The steel bar is subjected to tensile force, and the concrete is subjected to pressure. It has the advantages of being strong, durable, good fire performance, saving steel and low cost than steel structure. It is made of reinforced concrete elements that are pre-made in a factory or construction site and assembled on site.

<> "1. What is the general thickness of cast-in-place floor slabs?

It is generally between 80 mm and 160 mm. According to the relevant regulations of our country, the thickness of the cast-in-place floor slab can generally not be less than 80 centimeters, but it can not exceed 160 mm, what is the specific thickness of the cast-in-place floor slab, the construction personnel will generally make reasonable arrangements in accordance with the reinforcement, bay size, concrete strength, building use, etc., under normal circumstances, the thickness of the cast-in-place floor slab is between 80 mm and 160 mm.

The thickness of the cast-in-place floor slab is not the thicker the better, because after the thickness of the cast-in-place floor slab is thickened, although the bearing capacity of the floor slab can be increased, the overall weight of the building will undoubtedly increase, resulting in the weight of the foundation also increases.

2. What aspects need to be paid attention to in the construction of cast-in-place floor slabs.

1. Pay attention to safety.

In the construction of cast-in-place floor slabs, great attention must be paid to safety issues. The construction personnel must strictly abide by the correct construction specifications and do their own safety protection measures, which can not only ensure the safety of the cast-in-place floor structure, but also ensure the safety of the construction personnel. In addition, the construction personnel must carry out the construction according to the construction drawings and the correct ruler stimulation construction steps, and the construction process is operated to avoid errors.

2. Pay attention to quality.

Before construction, it is necessary to check in detail whether the embedded parts in the expansion joints, guardrails, drainage holes and other positions are correct, and only after confirming that there are no problems, can you start cast-in-place construction. In addition, because the thickness of the web, plate beam and other positions will be thinner, so it should be pointed out that the dilemma should be selected to use the appropriate aggregate particle size for construction, before construction, it is best to do a ratio experiment.

A concrete floor slab with a square thickness of 10 centimeters weighs 240 kilograms. This can be calculated by multiplying the volume of concrete from the floor slab by the weight of each side. The volume of a square concrete is cubic meters, and the weight of a single square concrete is 2400 kilograms of cubic meters, and then multiply it.

Ferroconcrete.

The bulk density is between 2350 and 2450kg m3, take 2400kg m3. Reinforced concrete (English: reinforced concrete or ferroconcrete), often referred to as reinforced concrete in engineering.

tong）。It refers to a composite material composed of steel reinforcement, steel mesh or fiber in the concrete to improve the mechanical properties of concrete. It is one of the most common forms of stiffened concrete.

Extend. Concrete mix ratio:

Debugging method:

1) Gravimetric method: the mix ratio needs to be adjusted according to the measured bulk density. The standard is within 1%, but it is recommended that you adjust it to the same level. If the actual bulk density is large, then increase the design bulk density. Vice versa.

2) Volumetric method. Adjust the apparent density of the material. Mainly sand and gravel.

apparent density. If the actual bulk is heavy, then the apparent density of sand or stone will be increased. Vice versa.

Summary. Concrete mix ratio:

Concrete mix ratio:

1. C20: water: 175kg, water and naison mud: 343kg, sand: 621kg per mu, stone: 1261kg. The ratio of split acres is:

2. C25: water: He Que 175kg, cement: 398kg, sand: 566kg, Shizi Zen Qiaofu: Kuan Chi 1261kg. The mix ratio is:

3. C30: water: 175kg, cement: 461kg, sand: 512kg, Shiziheng Dousen mu: 1252kg. The ratio of pins to the mix is:

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