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Advantages of foam concrete for cast-in-place walls

2020-06-29 17:25:00

Advantages of foam concrete for cast-in-place walls
Foam concrete machine is widely used for cast-in-place walls, it has the following advantages: lightweight, fire resistance, shock resistance, sound insulation and noise reduction, thermal insulation, waterproof, moisture-proof, mildew-proof, increase the use area, can hang heavy objects, convenient construction and low cost, environmental protection.

1. Lightweight

Compared with blocks and brick walls of the same thickness, the cast-in-place wall of foam concrete (foamed cement) weighs only one-fifth to one-sixth. For example, the building plans to use foam concrete (foamed cement) from the structural design stage Cast-in-place wall can reduce the standard of structural cement and steel materials, reduce the weight load of the building, and the overall cost of the building can be greatly reduced.

2. Fire resistance

Foam concrete (foamed cement) cast-in-situ wall 120mm thick, 150mm thick, 200mm thick, 240mm thick, the fire resistance limit at a high temperature of 1000 degrees Celsius exceeds 4 hours. Especially used in steel structure houses, it not only increases the strength of the steel structure, prolongs the service life of the steel structure (protects the steel structure from corrosion), but also becomes a firewall of the steel structure.

3. Shock resistance

The design of foam concrete (foamed cement) cast-in-place wall is scientific and reasonable. The entire wall is connected with beams, slabs, and columns by light steel keel and then cast into shape. It is closely combined to form a solid multi-constrained structure wall. The impact resistance is general masonry. 1.5 times, and at the same time increased the seismic level, suitable for seismic fortification intensity of 8 degrees and below, especially suitable for earthquake-prone areas.

foam concrete for cast-in-place walls

4. Sound insulation and noise reduction
More than 95% of the foam cells inside the foam concrete (foam cement) cast-in-situ wall constitute a honeycomb structure, which has proper ventilation performance. When sound waves enter the porous material, they first cause air movement in the small holes or gaps, and the air close to the hole wall or fiber surface is not easy to move due to the influence of the hole wall. This viscous nature of air will turn part of the sound energy into heat energy. The heat conduction between the air in the small holes and the walls of the holes and the fibers also causes heat loss. So that the sound energy is attenuated. The sound absorption capacity is more than 10 times that of ordinary concrete, the sound insulation effect reaches 50db (150mm), and the noise reduction coefficient reaches 0.97. It is a new foam sound absorption and sound insulation material. The two sides are high-density pressure cement slabs, and the entire wall forms the "mass-spring-quality" law, which plays a great role in the sound insulation of houses and buildings. Cast-in-situ lightweight composite wall sub-partition partition wall 120mm thick air sound weighted sound insulation amount reaches 45 decibels, 150mm thick sub-partition wall air sound weighted sound insulation amount reaches 50 decibels, 200mm thick hotel partition wall air sound weighted sound insulation amount reaches 55 decibel. Fully meet the current sound insulation requirements of residential and hotel.

5. Thermal insulation

Foamed concrete (foamed cement) is an excellent thermal insulation material. The thermal conductivity can meet the requirements of self-insulating walls. It solves the defect of poor insulation of block walls, and is in line with the current national household measurement heating. Claim.

The heat storage coefficient is higher, so under the premise of the same thermal insulation effect as the organic thermal insulation material, the thermal insulation performance will be better, especially in the summer, the thermal insulation effect is significant, which can greatly reduce the use of building air conditioning and save energy. At the same time, it guarantees good comfort in housing or office environment, and has the effect of warming in winter and cooling in summer.

foam concrete machine for cast in situ

6. Waterproof, moisture-proof, mildew-proof

Walls need to consider waterproof, moisture, mildew. Keep the indoor dry and hygienic and improve the living comfort. The cast-in-place lightweight composite wall has good water repellency, high strength, moisture resistance, and is not easy to deform. After the wall is formed, no other treatment is required and the next process can be directly performed. Practice has proved that the foam concrete (foamed cement) cast-in-place wall can be kept dry in the humid environment without any waterproof finish, and the back of the wall can be kept dry, leaving no traces, and no condensation in wet weather. Drops of water. The panel of the wallboard is a professional cement pressure board with good waterproof and moisture-proof performance.

7. Increase the use area

Take the traditional brick wall as an example.