Question

Workability of concrete is increased due to an excess of

Answer 1

Explanation:

Entraining air in to the concrete enhances the workability (however addition of too much air results in the reduction of the concrete strength). This can be done using air entraining admixtures. Use of fly ash improves the workability due to its 'ball bearing effect' as a result of their spherical shaped particles.

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Answer 2

Explanation:

entertaining air into the concrete enhances the workability this can be done using air and gaining admixtures use of fly ash improve the workability due to its ball bearing effect as a result of the spherical shape particles