What is the purpose of specific gravity?

Specific gravity can be used to determine if an object will sink or float on water. The specific gravity of water is equal to one. If an object or liquid has a specific gravity greater than one, it will sink. If the specific gravity of an object or a liquid is less than one, it will float.

Where is the value of specific gravity used in construction?

The specific gravity and water absorption of aggregates are important properties that are required for the design of concrete and bituminous mixes. The specific gravity of a solid is the ratio of its mass to that of an equal volume of distilled water at a specified temperature.

Why specific gravity of cement is important?

The significance of specific gravity of cement It is directly proportional to workability and the strength of a bonding. If the cement has already more moisture in it then, the value of water-cement ratio will actually affect the workability and strength rather than increasing it.

What is specific gravity of concrete?

Limit: Specific gravity of cement = 3.15 g/cc.

What is specific gravity in construction materials?

01. The specific gravity of aggregates indirectly measures its density; hence it is the most essential parameter of strength or quality of the aggregates. Higher the specific gravity, higher is the strength.

Why kerosene is used in specific gravity of cement?

In general, To calculate the specific gravity of material, we use water. But in cement, we use kerosene for finding specific gravity in it. The reason behind this, cement hydrates and forms calcium oxide when it reacts with water. Cement won’t show any reaction when it mixed with kerosene.

What if specific gravity of cement is low?

Specific Gravity of Cement Formula:- If the specific gravity of the material is less than 1, then that material floats in water. If the material has a specific gravity greater than 1, then it sinks in water.

What is effect of specific gravity of aggregate on concrete?

Higher the specific gravity, higher is the strength. It is due to higher specific gravity there would be higher compressive strength of aggregates and hence it passes on to the concrete. 02. Lower specific gravity indicates high porosity.

What is specific gravity of sand?

2.65 to 2.67
Sand particles composed of quartz have a specific gravity ranging from 2.65 to 2.67. Inorganic clays generally range from 2.70 to 2.80. Soils with large amounts of organic matter or porous particles (such as diatomaceous earth) have specific gravities below 2.60. Some range as low as 2.00.

What is the gel space ratio?

The ratio of the volume occupied by hydrated cement paste to the aggregated volume of capillary pores and hydrated cement paste is known as the gel/space ratio. It is denoted by r. Powers (1958) found that no influence of the mix proportion of concrete and age of it on strength prediction.