Concrete Inspections Safety 
The Constructor
MAY 29, 2012
Hence, the bridge must be regularly inspected and maintained for the benefit of its users. There are three levels of inspection: 1. General inspection: Usual inspection of representative parts of a structure. General inspection: Usual inspection of representative parts of a structure.
The Constructor
MARCH 20, 2012
When the formwork is erected the concrete can be poured. When the concrete has reached the required strength the formwork can be poured. If the steel had been placed too close to the surface and the concrete had been poured then over time the steel may become exposed to moisture and corrosion will commence.
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The Constructor
MARCH 19, 2012
Depending on how big or complicated the pour is, the inspection may just take few minutes or it could take hours. Formwork pressures are function of height (including the height from which concrete is dropped into the forms) and are affected by concrete workability, rate of stiffening and rate of placing.
The Constructor
NOVEMBER 8, 2011
Cracks in concrete beams due to increased shear stress 2. Cracks in concrete beams due to corrosion or insufficient concrete cover 3. Cracks parallel to main steel in case of corrosion in beams 4.
The Constructor
MARCH 21, 2012
The size of movement depends upon the change in temperature and the coefficient of thermal expansion o f concrete. The size of movement depends upon the change in temperature and the coefficient of thermal expansion o f concrete.
The Constructor
MARCH 25, 2012
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.
The Constructor
NOVEMBER 8, 2011
Upon wetting, concrete tends to expand. These moisture-induced volume changes are a characteristic of concrete. If the shrinkage of concrete could take place without any restraint, the concrete would not crack.
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