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The Constructor
MARCH 27, 2012
Polystyrene void formers can be introduced into rectangular sections to reduce self weight. The above units can be used in the main elevations supported by trestles and column formwork used in the curved elevation. More efficiently, they can act compositely with the in-situ concrete.
The Constructor
NOVEMBER 11, 2011
Deflections can be due to self-weight, external loading, due to changes in temperatures of the truss members or due to a combination of these effects. The simplest configuration of a truss is a set of interconnected members forming a series of triangles. Here we will discuss the deflections of pin jointed determinate trusses.
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The Constructor
MARCH 26, 2012
The different materials are used according to their strengths and weaknesses to provide simple, buildable and competitive high-quality structures that offer consistent performance. Hybrid concrete construction can incorporate all the benefits of precasting, (e.g. economy, flexibility, moulability, continuity and robustness).
The Constructor
NOVEMBER 8, 2011
This type of shrinkage is caused by the loss of moisture from the cement paste constituent, which can shrink by as much as 1% per unit length. Unfortunately, aggregate provides internal restraint that reduces the magnitude of this volume change to about 0.05%. Upon wetting, concrete tends to expand.
The Constructor
MARCH 25, 2012
Precast concrete being moved to the storage area: Once an appropriate strength has been reached, the precast units are moved to the storage area. The following figures illustrate the precast concrete process: 1. Many precast works now employ computer controlled batching plants.
The Constructor
AUGUST 7, 2012
They may be load bearing, or they may be just decorative to act as a façade. The techniques that are used in the manufacture of panels permit a variety of finishes that imitate virtually any type of architecture at a fraction of the cost. Economy: Precast cladding offers major cost benefits compared to its natural competitor, curtain walling.
The Constructor
NOVEMBER 27, 2011
Put the display unit on “Peak Hold” mode to hold the maximum load reading. hardened concrete). hardened concrete). hardened concrete). hardened concrete). hardened concrete). Procedure as per IS 516 – Methods of tests for strength of concrete 1. Close the pressure release valve.
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