The research is devoted to the combination of foam concrete and lightweight aggregates

(The research is devoted to the combination of foam concrete and lightweight aggregates)

What is Cellular lightweight concrete

Monolithic foam concrete is used for enclosure structures in the form of lightweight steel concrete structures, retaining walls, and backfill materials for highways, railways, and plazas. This material is characterized by a low density, good sound insulating properties, and high thermal insulation capacity, while it exhibits sufficient compressive strength for the load-bearing function. The use of monolithic foam concrete makes it possible to simplify and reduce the cost of construction and increase the volume of work more than ten times, compared with the laying of aerated concrete and foam concrete blocks, with a significant reduction in the number of workers. It also minimizes the use of cranes and lifting and reduces transport expenses and the area of the zones of materials storage. Monolithic foam concrete quality greatly depends on the type and quality of the foaming agent. There are two types of foaming agents for monolithic foam concrete: protein foaming agents and synthetic foaming agents.

 

A synthetic foaming agent is cheaper than a protein foaming agent

Concrete based on synthetic foaming agents has shorter durability and lower strength compared to concrete based on protein foaming agents. The protein foaming agent (vegetable-based and animal-based) has more suitable characteristics to produce foam concrete. The research is devoted to the study of the pore structure of foam concrete. The use of fly ash as filler helps in achieving a more uniform distribution of air voids, which leads to an increase in the material strength. Finer filler material helps in the uniform distribution of air voids. A larger porosity results in a more significant effect of the moisture content on the effective thermal conductivity. When the volumetric moisture content reaches 10 %, the thermal conductivities of foam concrete and aerated concrete increase by approximately 200 % and 100 %, respectively. There are additives, such as fly ash metakaolin, shredded rubber, silica fume, and granulated blast furnace slag, which can improve concrete properties. The use of mineral additives regulates the porous structure of foam concrete; simultaneously, the coefficient of thermal conductivity is reduced, density is reduced, and frost resistance is improved.

 

The research is devoted to the combination of foam concrete and lightweight aggregates

The work shows an improvement in the compressive strength of such concrete by almost 40% compared to conventional foam concrete. The same applied to the drying shrinkage; the change in length is reduced by almost 80 %. Thermotechnical characteristics of foam concrete are investigated. The coefficients of thermal conductivity of foam concrete depend on its density, and it varies from 0.07 W/(m·o C) – to 0.24 W/(m·o C). Adding microspheres of perlite to foam concrete reduces its thermal conductivity coefficient to 0.062 W/(m·o C). The use of basalt and glass fiber, fine additives of wollastonite, and diopside reduces the thermal conductivity coefficient to 0.069-0.097 W/(mo C). The work shows the experimentally obtained thermal conductivity resistance of the enclosure structure from thin-wall profiles with foam concrete. It is 1.367 (m2 ·K)/W, taking into account thermal resistance 0.783 (m2 ·K)/W for reinforced sections. However, there is little research on foam concrete as part of lightweight steel concrete structures (LSCS). The works show fire resistance of lightweight steel concrete structures consisting of profiled steel filled with monolithic foam concrete with a 200 kg/m3 – 400 kg/m3 density and with fiber cement sheets sheathing. The actual fire resistance limit of samples of the slab panel fragment is at least REI 60 with a uniformly distributed load of 4 kN/m2.

 

Price of Cellular lightweight concrete

Cellular lightweight concrete particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Cellular lightweight concrete. A large amount of large amount will be lower. The Price of Cellular lightweight concrete is on our company's official website.

 

Cellular lightweight concrete supplier

If you are looking for high-quality Cellular lightweight concrete, please feel free to contact us and send an inquiry. (sales@cabr-concrete.com). We accept 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.

(The research is devoted to the combination of foam concrete and lightweight aggregates)