Buoyancy Balance
Product Code : EL-CTLE-10307
Quick Answer:
A Buoyancy Balance is a laboratory instrument used to determine the density of both fresh and hardened concrete specimens, such as cubes and cylinders, using the weight-in-air/weight-in-water buoyancy method. It consists of a rigid support frame with a water-tank platform and a mechanical lifting device that immerses the suspended specimen for weighing, and it can also double as a standard weighing device in the laboratory. Density testing of this kind is important to engineers because it relates directly to a concrete sample's durability, strength, and resistance to permeability.
The density of both fresh and hardened concrete is of interest to the engineer for numerous reasons, including its effect on durability, strength and resistance to permeability. Hardened concrete density is determined either by simple dimensional checks, followed by weighing and calculation, or by the weight in air/water buoyancy method, and 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 sample is weighed in air and in water to calculate the density of fresh concrete, and the balance supplied may also be used as a standard weighing device, thus providing a versatile and comprehensive weighing system in the laboratory.
Standards: EN 12390-7, BS 1881:114
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Last Updated: September 2026
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