Q. The removal of excess air after placing concrete helps in increasing the strength of concrete by ___________

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Q. The sound absorption coefficient of light weight concrete is nearly __________

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Q. This type of concrete possesses __________

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Q. In making precast structural units for partition and wall lining purposes, the concrete should be __________

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Q. Most low-density aggregates are ________ in origin.

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Q. ________ is also something used as the aggregate component of lightweight concretes.

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Q. ________ is the most commonly used.

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Q. Aggregates with a specific gravity of _________ are called lightweight aggregates.

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Q. Light weight cement content for compressive strength 2500 psi is _______ pounds per cubic yard.

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Q. Light weight cement content for compressive strength 4000 psi is _______ pounds per cubic yard.

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Q. Light weight cement content for compressive strength 5000 psi is _______ pounds per cubic yard.

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Q. Light weight cement content for compressive strength 6000 psi is _______ pounds per cubic yard.

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Q. Light weight cement content for compressive strength 17.24 MPa is _______ kg/m³.

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Q. Light weight cement content for compressive strength 20.68 MPa is _______ kg/m³.

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Q. Light weight cement content for compressive strength 27.58 MPa is _______ kg/m³.

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Q. Light weight cement content for compressive strength 34.47 Mpa is _______ kg/m³.

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Q. Light weight cement content for compressive strength 41.37 MPa is _______ kg/m³.

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Q. What is the amount of mixing water used to make LWC?

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Q. What is the normal time to get uniform mixing?

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Q. The strength of the resulting concrete is _______ % lower than when dry aggregate is used for the same content.

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