This
apparatus is used for checking the density of both fresh and hardened
concrete and it is of interest to the engineer for numerous reasons
including its effect on durability, Strength, and resistance to
permeability. Hardened concrete density is been calculated either by
simple dimensional checks, followed by weighing and calculation or by
weight in air/water buoyancy methods. The density of Hardened Concrete:
The density of hardened concrete specimens such as cubes and cylinders
can be quickly and accurately determined using a Buoyancy Balance.
Buoyancy Balance: The buoyancy balance system developed by us consists
of a rigid support frame. Incorporating a water tank mounted on a
platform. A mechanical lifting device is used to raise the water tank
through the frame height immersing the specimen suspended below the
balance fixed on a cradle. The balance supplied may also be used as a
standard weighting device, thus providing a versatile and comprehensive
weighing system in the laboratory. The sample is weighed in air and in
water to calculate the density of fresh concrete.Used for determining
the slump of fine aggregate in the determination of bulk and apparent
specific gravity and absorption of fine aggregate.
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