Plain Cement Concrete and Reinforced concrete:
concrete with no reinforcement and with
reinforcement called PCC and RCC respectively
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Lean concrete: -
Plain concrete with a large aggregate to cement ratio. It is used for filling and non-structural duties. Prevents foundation concrete to direct contact with the soil.
Structural concrete: -
light wt.concrete of such a quality that, it is suitable for load bearing members of structure.
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Pre-stressed concrete:
Pre-stressed concrete is a form of concrete used in construction. It is substantially "prestressed" (compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service
·Cast in situ/cast in place concrete
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Pre-cast concrete ·Vacuum concrete:
which includes high water content to allow enough workability to enable it to be placed into a complicated mould or around extensive reinforcement.
Ready mix concrete:
concrete which is made at a mixing plant and delivered to the site in a special transport vehicle (Panchakanya).
Water resistance concrete:
i. Waterproofed concrete ii. Water-tight concrete Waterproofed concrete is framed with a water resistance layer as the surface whilst (-while) the mass of concrete being ordinary concrete.
Watertight concrete the watertight concrete layer can be framed using a stray lacquer, applying a coat of asphalt or bitumen, or using water or soda (water glass).
Aerated/Cellular/Air-entrained concrete:
The concrete is prepared by mixing aluminum in it is called air-entrained, cellular or aerated concrete.
In this concrete bubbles of hydrogen gas are liberated which forms cell and make the concrete cellular.
USES: This concrete is used for lining walls and roofs for heat and sound insulation purposes