For concrete's subjected to freeze-thaw cycles air-entraining admixtures are used to increase the durability of concrete. In addition, there is always some unavoidable entrapped air. During the mix- design calculations of a mix without any air entrainment, usually an amount of entrapped air is assumed. For such a mix, the masses of the ingredients for 1 m3 of mix are found as: Water (172 kg), Cement (330 kg), SSD Coarse agg. (1040) kg, SSD Fine agg. (750 kg). Calculate the assumed amount of entrapped air in the mix and state what could be done in the field to reduce the amount of entrapped air?

For concrete's subjected to freeze-thaw cycles air-entraining admixtures are used to increase the durability of concrete. In addition, there is always some unavoidable entrapped air. During the mix- design calculations of a mix without any air entrainment, usually an amount of entrapped air is assumed. For such a mix, the masses of the ingredients for 1 m3 of mix are found as: Water (172 kg), Cement (330 kg), SSD Coarse agg. (1040) kg, SSD Fine agg. (750 kg). Calculate the assumed amount of entrapped air in the mix and state what could be done in the field to reduce the amount of entrapped air?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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