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REPAIR OF POST CONCRETING DEFECTS IN STRUCTURES

The Constructor

Cleanliness: when repairing concrete, care must be taken to remove any dirt or dust that will prevent the repair concrete bonding with the parent concrete. Cleanliness: when repairing concrete, care must be taken to remove any dirt or dust that will prevent the repair concrete bonding with the parent concrete.

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STRUCTURAL USES OF PRECAST CONCRETE

The Constructor

Use of Precast Concrete in frames: There are two main types of precast building frame. Use of Precast Concrete for Floors: Each year the industry makes about 5 million square meters of precast floor slabs. Structural frames are mainly used for offices, car parks and retail developments.

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What Is Mass Concrete | Properties of Mass Concrete | Advantage of Mass Concrete | Disadvantage of Mass Concrete |How Much Mass Density of Concrete

CivilJungle

Mass Concrete: Large bridge piers , foundations , and such as dams like the massive structure , the mass concreting technique is used. For also, mass concrete strength , economy, uniformity, and other factors considered should take into account. The temperature shrinkage is the major problem in mass concrete work.

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CONCRETE CURING METHODS

The Constructor

Both the rate and degree of hydration, and the resulting strength of the final concrete, depend on the curing process that follows placing and consolidating the plastic concrete. This reaction, called hydration, produces a stone-like substance—the hardened cement paste.

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COMPOSITION OF REACTIVE POWDER CONCRETE (RPC)

The Constructor

It is new technique involved in the civil engineering.Reactive powder concrete in made by replacing the conventional sand and aggregate by grounded quartz less than300 micron size, silica fume, synthesized precipitated silica ,steel fibers about 1 cm in length and 180 micron in diameter.

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CELLULAR LIGHTWEIGHT CONCRETE?FLY ASH BASED

The Constructor

It has many advantages when compared to the normal conventional concrete. The density is considerably reduced by using fly ash based cellular lightweight concrete than normal concrete and at the same time, the strength is not affected by appropriate design mix.

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4 key innovations and construction trends across airport design

BD+C

Photo courtesy Skanska Along with improvements like reconfiguring Customs screening and inspection areas and upgrading escalators, baggage was a priority for our work at Phoenix Sky Harbor International Airport. Portland International Airport. Phoenix Sky Harbor International Airport.

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