For the production of cellular concrete, Brickwell has tied up with Isoltech, a world leader in CLC Manufacturing Solutions. Brickwell offers to its clients the quality and effectiveness of the foaming agents ISOCEM S/L and ISOCEM S/B-P.
Isocem S/L is a foaming agent for cellular concrete, developed by Isoltech.
The properties of cellular concrete obtained by using the specific foaming agent Isocem S/L, however, are influenced by the foam/cement ratio, rather than by the properties of the foam itself, and this ratio determines the final heat and sound insulation properties ot cellular concrete.
ISOCEM S/L is an innovative foaming agent, made up of natural surfactants mixed to vegetable raw materials: it is highly effective and can also be used as an air-entraining additive for cement mixes containing light aggregates (EPS, vermiculite etc.).
The most significant physical property of cellular concrete is its density. It is determined by the quantity of air in a cubic meter of material, that is by the air/cement ratio. The most frequently used densities are:300 kg/m3400 kg/m3500 kg/m3600 kg/m3
These densities correspond to different values of thermal insulation and mechanical resistance, which approximately amount to the values in the following tables:
- D 300 kg/m3 = 0.062 kal/m/h/C°
- D 400 kg/m3 = 0.08 kal/m/h/C°
- D 500 kg/m3 = 0.09 kal/m/h/C°
- D 600 kg/m3 = 0.12 kal/m/h/C°
Doses: 2.5-3% (percentage of foaming agent for the production of cellular concrete).Applications: layers and/or sloping terraces.
Storage: 1000 kg tanks or 200 kg drums.
Description and Features:
Isocem S/L is a foaming agent for cellular concrete, developed by Isoltech. Its main features are the following:
Isocem S/L Description
|Physical properties||Isocem S/L|
|Freezing point||-2 °C|
ISOCEM S/B-P is a foaming agent made up of protein hydrolysates, which form a highly stable foam; it is used to produce building blocks with specific foam generators and can be used in all medium density mixes of cellular concrete and sand, from 600 to 1200 kg/m3.
- Absorption: Trials have shown that the foaming agent ISOCEM S/B produces a cellular concrete with very low water absorption. The higher the air content, the higher the water absorption: a fully submerged, medium density (770 kg/ m3) sample of cellular concrete absorbs only 13% of the weight of water over a 10 days period.
- Fire resistance: Cellular concrete is extremely fire resistant and well suited to applications where fire is a risk. Tests have shown that in addition to prolonged fire protection, the application of intense heat, such as a high energy flame held close to the surface, does not cause the concrete to spall or explode as is the case with normal weight concrete.
- Reliability: Foam concrete is not subject to the impact of time: it does not decompose and is as durable as rock. Its high compression resistance allows to use it with volumetric weights that reduce the global weight of a building.
- Heat: Due to a high temperature lag, buildings made of foam concrete are able to accumulate heat, which allows to minimize heating expenses by 20-30%.
- Microclimate: Cellular concrete prevents loss of heat in winter, is moisture resistant, allows to avoid very high temperatures in summer and control air humidity in a room by absorbing the output of moisture, thus helping to create a favourable microclimate (like in a wooden house).
- Quick mounting: The small density (and therefore the lightness) of foam concrete and the large size of blocks compared with bricks allow to increase the speed of laying by several times. Foam concrete is easy to process and trim, to cut channels and holes for electrical wiring, sockets, and pipes. The simplicity of laying is reached through high exactness of linear dimensions: the tolerance is +/- 1 mm.
- Sound insulation: Cellular concrete has a relatively high property of acoustic absorption. Buildings made of porous concrete meet the requirements for sound insulation.
- Environmental compatibility: During maintenance, foam concrete does not produce toxic substances and in its ecological compatibility is second only to wood. As a comparison, the coefficient of ecological compatibility of porous concrete is 2; of wood 1; of brick 10; of expanded clay 20.
- Versatility: Due to its high workability, it is possible to produce various shapes of corners, arches, pyramids, which can enhance the architectural and aesthetic value of buildings.
- Cost-effectiveness: The high geometrical exactness of dimensions of concrete production allows to lay blocks on glue, to avoid “frost bridges” in a wall and to make inner and outer plaster thinner. Cellular concrete weighs from 10% to 87% less than standard concrete. A sufficient reduction of weight leads to a sufficient economy on basements.
- Safety: Foam concrete is protected from fire spread and corresponds to the first degree of refractoriness. Thus, it can be used in fire-proof constructions. Under the impact of intensive heat, like that of a blow lamp, the surface of foam concrete does not split or blow, as is the case with standard concrete. As a result, the armature is protected from heating for a longer period.
- Transport: The compact size of systems and their low cost allow to distribute them near the target markets, thus saving on transport costs.
Isocem S/B Comparison
|Density (kg/mc)||Cement kg||Sand kg||Water l.||Isocem S/B kg|
Isocem S/B Properties
|Thermal density (kg/m3)||Mechanical resistance||Insulation|