SINOGAIN ASIA LTD.
Properties
Properties
CLC is a version of lightweight concrete that is produced like
normal concrete under ambient conditions. It is produced by
initially making a slurry of cement + sand + fly ash
(constituting 26 % - 34 % content) + water, which is further
mixed with the addition of pre-formed stable foam in an ordinary
concrete mixer under ambient conditions. The mixture is either
poured or pumped into assembled moulds of blocks or formwork
of reinforced structural elements or poured onto flat roofs or voids
for thermal insulation or filling. The foam imparts free flowing
characteristics to this slurry due to ball bearing effect of foam
bubbles enabling it to flow easily into all corners and compact by
itself in the moulds without requiring any kind of vibration or
compaction.
This Cellular Lightweight Concrete (CLC) can be produced in a
wide range of densities from 400 kg/m3 to 1,800 kg/m3 to suit
different applications. CLC is very light in weight, very low water
absorbing, fire resistant, highly thermal insulative, energy efficient,
sound insulative, and offers excellent strength in its category
conforming to standards, and above all it qualifies as a
Green Building Product.
The uses of CLC are innumerable. CLC can be used to manufacture
light weight blocks to construct partition walls, load bearing walls,
wall panels, structural elements, floor screeding and ground
stabilization works.
Process chart
Cellular Lightweight Concrete (CLC) is produced by the mixing of sand,
fly-ash cement foam and water in required proportion in ready mix plant
or ordinary concrete mixer. The mixed slurry is then poured into moulds
of pre-cast blocks, structural components, assembled formwork of building
elements or over flat roofs for thermal insulation (cast in-situ). It is
essentially air cured, thus can be produced at project site, utilizing equipment
and moulds normally in use for conventional concrete.
The foam is produced with the help of a Foam Generator by using a foaming
agent. The foam contains isolated air bubbles, which creates million of
unconnected tiny voids/cells in the mix resulting in lighter weight of concrete.
CLC can be produced in wide range of controlled densities from 400 kg/m³ to
1.800 kg/ m³. The density recommended is 1.000 kg/ m³ (oven-dried) for
blocks and 1.200 kg/ m³ to produce prefab elements and walls cast in-situ.
CLC has moderate embodied energy content and performs very well as
thermal insulation. Blocks are made to very exacting dimensions and are usually
laid in thin-bed mortar that is applied with a toothed trowel, although more
conventional thick-bed mortar can be used. CLC has a long life and does not
produce toxic gases after it has been put in place. It offers a substantial material
savings as little cement and no gravel is used.
our products
for producing your own CLC blocks or for cast on site applications we supplier following products.
- foaming generator
- foaming agent
- moulds
- cutting machines
- plug & foam units
- starter kits
Quality characteristics and benefits of CLC
· CLC Blocks are very light in weight, density ranging from 400 to 1800 kg / m³ can be produced as required.
· CLC Blocks are excellent for earthquake resistant housing due to light weight, reducing dead weight by more than 50% of the normal concrete. Multistory high rise towers constructed has saved cement and steel to large extent.
· CLC Blocks are excellent for thermal and sound insulation which keeps the house cool in summer and warm in winter saving energy and electricity for cooling and heating
.
· CLC Blocks are “Environment friendly” using more than 30% of fly ash from thermal power stations and converting directly into valuable building materials.
· CLC Blocks will also replace clay bricks which is destroying agricultural top soil.
· Our technology will save environment and ecology from the hazardous and polluting material fly ash and prevent destruction of valuable agricultural land.
· In-situ casting houses have no joints and hence it will not damage by high intensity earthquake or typhoons. The doors, windows, sanitary and water pipes are inserted in the moulds before pouring CLC in the moulds resulting into a compact house without any maintenance cost for a long period.
· In-situ casting housing, prefab reinforced building elements and CLC Blocks are used regularly in more than 40 countries and more particularly by the developing countries.
· Micro Air Cells of CLC are intact, not interconnected as it is produced by stable foaming agent. Therefore our product has very low water absorption avoiding any leakage, seepage or dampness in the walls and ceiling.
· Steel reinforcement is not required for the ground floor housing with sheet roofing or CLC panel roofing. Any shrinkage can be avoided by using synthetic fibers, which adds to the strength of the concrete.
· CLC do not require stone aggregates and the slurry of cement, sand, fly ash, foam and water can be pumped easily in length and height.
· CLC is excellent for snow bound cold regions and also for hot climate desert zones for the comfortable living. CLC Blocks can be produced in the remote snow bound areas by a mobile production unit.
· CLC is excellent fire retardant and can be used for firefighting operations in coal mines.
· CLC is excellent for roofing thermal insulation and sound insulation for floor slabs.
· CLC is best for trench reinstatement, void filling, bridge abutment, tunnel work and floor construction.
· CLC is also suitable for soil stabilization, road foundation, land reclamation and harbour fills.
· CLC is most suitable to construct sound barriers at the airports, highways and high speed train routes to prevent noise pollution.