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General
- Cellular blocks
provide the same or similar performance characteristics as solid blocks
but with the significant advantage of having lower unit weight.
- The need to restrict
block weights has revived interest in voided blocks and the recently
introduced units having innovative core patterns offer additional
strength, cutting and chasing advantages.
- Cellular blocks are
available in thicknesses from 90mm and are made with either dense or
lightweight aggregates.
- Aggregate concrete
blocks are the most economical solution for builders. They have the best
acoustic properties, provide an excellent background for fixings
and have excellent resistance to fire.
Process
- Autoclaved Cellular
Concrete is a lightweight building material, unique from lightweight
aggregate concrete and other types of concrete in that it is composed of
millions of microscopic cells generated during the manufacturing
process.
- Also unlike most
other concrete products, it is steam cured in a high pressure
autoclave.The raw materials and the manufacturing process are also
unique, resulting in a building material superior in characteristic so
most of the building materials presently available in the United States.
- Foamed (or cellular)
concrete is made from mixing preformed stable foam to a slurry of cement
, sand & water.This action incorporates small enclosed air bubbles
within the mortar thereby making the concrete lighter .
Application
- Foamed concrete has a
wide range of applications and some of them include wall blocks , wall
panels , floor & roof screeds , trench reinstatement ,road foundations,
bridge abutments and void filling.
- TaG-Crete™ CLC is
ideal for any project or product that will benefit from increased
thermal efficiency, reduced weight, and raw material savings.
- TaG-Crete™ CLC can be
used for Structural and Non-Structural Applications.
- The high air content
of TaG-Crete™ CLC provides substantially higher thermal performance than
normal concrete.
Market
- Due to current
ready-mix supply constraints, the Cematrix Company is maximizing
utilization of dry process equipment that uses cement in lieu of
ready-mix in meeting its current and expected market demands.
- The Company plans to
increase its marketing and sales staff to better anticipate such
conditions and is currently evaluating various equipment options to
enable the Cematrix Company to be in a better position to react to these
changing market conditions.
- Today two separate
organizations are trying to introduce ACC block to the American
market—Providence, R.I.-based North American Cellular Concrete and
The Hebel Group of Germany. They are not working cooperatively.
Report
- Moyno type pumps are
used to transfer cellular concrete from the mixer to its point of
placement. Progressive cavity pumps are constant volume delivery pumps
consisting of a rotor and stator. These pumps are sized to deliver
adequate material volume through hoses attached to the pumps.
- The second most
important factor controlling cellular concrete is the foam generation
rate. Assuming the cement weight is correct, the final concrete density
is controlled by the volume of the foam introduced in the mixture.
- Foam rate is measured
in volume per second. Time is used to determine foam volume introduced
during the mixing of cellular concrete.
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