General & Speciality products
foamcement
MAS FOAMCEMENT is an efficient low dosage foaming admixture, which is used to produce lightweight foam concrete for a variety of insulation and construction applications. It contains synthetic and naturally occurring surfactants, which work with synergy with them.
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MAS FOAMCEMENT helps to produce a stable aerated mortar, by entrapping air into prepared cement slurry in the shape of discontinued air bubbles, to form a cellular structure that significantly reduces the thermal conductivity and density of concrete, resulting in a lower dead load imposed on the structure. It provides excellent resistance to freeze and thaw.
USES:
MAS FOAMCEMENT can be used for the production of low density foamed mortar and concrete.
- As flat roof insulation screeds.
- Insulated floor screeds.
- As a backfill concrete.
- Fabrication of lightweight beams, blocks and panels.
- Fire barrier.
- Sound insulation of walls and ceilings.
- As encasement concrete.
ADVANTAGES:
- High efficiency even at low dosage.
- Excellent stability in alkaline conditions. A 1% aqueous solution creates stiff white foam with a 40 to 50 times increase in volume.
- It can be used with all types of lightweight aggregates to produce very-low-density concrete mixes.
- Chloride-free.
- Asbestos-free
Appearance – Light brown liquid
Specific Gravity – 1.02 kg/li @ 25ºC
Solubility – Soluble in water
Chloride Content – Nil as per BS 5075
Water Absorption – Absorption of foam cement containing 60% voids after 3 months immersion in water, shows only a 20% increase in volume.
Toxicity – Non-Toxic
pH – 7
Freezing Point – <3ºC
Compatibility with cement – Compatible with Portland cement
Shelf Life – At least 24 months if stored in tightly closed containers at normal ambient temperature
The optimum dosage and performance of MAS FOAMCEMENT are best assessed after preliminary tests on-site using the actual mix design and the job under consideration.
MAS FOAMCEMENT is a concentrated material and should be diluted with water to prepare a 1% solution. The diluted solution is used to produce pre foam by passing through a foam generating machine which produces a uniform and stable foam having a volume of 40 to 50 times that of the original solutions.
As an alternative, the water and foaming agent can be fed separately into the foam generator, which mixes it uniformly to produce foam. Add the pre-foam into the cement or sand-cement slurry within a suitable concrete mixer.
DOSAGE:
The dosage of MAS FOAMCEMENT required will vary due to a number of factors including the final mortar density, mixing method and starting materials.
OVERDOSING:
MAS FOAMCEMENT is an air-entraining agent. The compressive strength of any mix will get reduced with an increase in the content of MAS FOAMCEMENT as the level of entrained air will be increased. Overdosing of MAS FOAMCEMENT will normally produce an increase in air content, workability together with loss in compressive strength.
Detailed mix formula is given in Fig.1 (view datasheet). The amount of MAS FOAMCEMENT used is subject to slight variations owing to differences in the hardness of the local water supply and the properties of the cement used. Larger variations in the quantities of foam cement required can be owed to cases where water supplies are polluted and/or cement is old stock. It is therefore very important to obtain clean water and fresh cement in order to produce efficient and economical lightweight foam concrete.
