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The benefits of foam cast-in-place concrete and its application

2023-10-10 16:59:20  Blog

What is the cast-in-place foam concrete?

Cast-in-place foam concrete wall is a kind of lightweight porous concrete. It makes foam from foaming agent aqueous solution by physical method, and then adds foam to the slurry made of cement, aggregate, admixture, admixture and water.


The benefits of foam cast-in-place concrete

  • Fast construction speed

Compared with traditional wall building, the time is about 3 times faster and the construction period is short. 60% of the construction process is dry work, and 40% of the construction process is wet work. It is not affected by the season and the construction speed is fast. There is no need to slot pre-buried water and electricity pipelines like ordinary lightweight partition walls, and they can be pre-buried as long as they are installed.

  • Light weight and high strength

At present, the weight of red brick is 270 kg per square meter, and the perforated brick is about 210 kg. However, the weight of cast-in-place foam concrete wall with non-dismantling form work steel mesh is only about 30-50 kg per square meter, which can greatly reduce the weight of the floor. Heavy objects can be hung arbitrarily, which solves the problem of inconvenient installation due to poor lateral pressure, drawing and hanging capabilities of ordinary lightweight partition walls.


  • Good sound insulation

The sound absorption capacity is over 10 times that of ordinary concrete, the insulation effect reaches 50db (150mm), and the noise reduction coefficient gets to 0.97. It is a new type of foam sound absorption and sound insulation material. Dismantling-free form work expanded metal foam concrete cast-in-place wall with 120mm thickness airborne sound weighted sound insulation of 45 decibels, 150mm thick household partition wall airborne sound weighted sound insulation of 50 decibels, 200mm thick hotel partition wall airborne sound weighted sound insulation of weighted sound insulation Reached 55 decibels. It fully meets the current sound insulation requirements of houses, apartments and hotels.

  • Fire resistance

The non-removable template expanded metal foam concrete cast-in-place wall 120mm thick, 200mm, 240mm, 1000 degrees Celsius, the fire resistance limit exceeds 4 hours at high temperatures, and does not emit toxic gases, otherwise the performance can reach the national A-level standard. Especially used in light steel structure walls, it not only increases the strength of the light steel structure, but also  prolongs the service life of the light steel structure (protects the light steel structure and does not rust), and becomes a firewall of the light steel structure.


  • Earthquake resistance

The design of cast-in-place foam concrete wall with non-dismantling template expanded steel mesh is scientific and reasonable. The entire wall is casted with light steel keel columns and expanded steel mesh structure. The impact resistance is 1.5 times that of general masonry, and the earthquake resistance level is improved at the same time, which is suitable for earthquake resistance. The fortification intensity is 9 degrees and below, which is especially suitable for earthquake-prone areas.

  • Crack resistance and crash resistance

One-piece molding, shock resistance and impact are in line with national standards. Because it is a mesh surface, it blocks the pulling force of the cement and does not produce cracks.

  • Energy saving

Because a large number of closed small pores are contained in foamed concrete, It has excellent insulation performance, which is unparalleled in ordinary concrete. Commonly, the density of cast-in-place foamed concrete wall is in the range of 300kg/m3 to 500 kg/m3. The thermal conductivity of foamed concrete is between 0.08-0.3w/(m·K) and the thermal resistance is about 20 times that of ordinary concrete.


  • Variety of shape

The cast-in-place foam concrete wall of the non-removable template expanded metal mesh is plastic, and the shape can be changed at will according to the design needs, such as the curved wall. The construction is still simple and fast.

Application of cast-in-place concrete

Generally, in daily life, foam concrete has the following applications in energy-saving wall materials.

  • Thermal insulation layer

foam concrete can be used as thermal insulation layer for roof and wall insulation. It has excellent thermal insulation performance and can effectively reduce energy consumption and waste.

  • Lightweight wallboard

Foam concrete can be made into lightweight wallboard, which has the advantages of light weight, sound insulation, heat preservation, earthquake resistance, etc., and can be used for the internal and external walls of buildings, heat preservation and sound insulation.

  • Sandwich member

In precast reinforced concrete members, foam concrete can be used as the core, so that it has good performance of lightweight, high-strength and heat insulation. It can improve the thermal insulation performance and seismic performance of the member.


  • Sports ground and track and field track

Permeable foam concrete with strong drainage capacity is used as a light foundation, which is covered with gravel or artificial turf and can be used as a sports ground or track and field track.

  • Retaining wall

Foam concrete can be used as a lightweight backfill material for retaining walls, which can reduce the vertical cut-off load and the lateral load on the bank wall.

  • Pipeline back filling

Abandoned underground oil tanks, pipelines and other cavities are easy to cause fire or collapse. Back filling with foam concrete can solve these problems with low cost.



TRUNNANO is a concrete foaming agent supplier with over 12 years experience in nano-building energy conservation and nanotechnology development. It accepts payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea. If you are looking for high-quality concrete additives, please feel free to contact and send an inquiry. (

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  • Luoyang Tongrun Info Technology Co., Ltd. ( is the world's leading nanomaterial technology developer and application manufacturer, the company has more than 20 years of industry experience, after years of scientific research and production, has been professionals in lightweight concrete and foam concrete solutions. We can supply concrete foaming agents, superplasticizers, aerogels and foam concrete strength enhancers for lightweight concrete mix, CLC blocks all over the world, suitable for ordinary cement foamed concrete cast-in-place, block, plate, insulation wall, etc.