The effects of pumping on the air content and void structure of air-entrained, wet mix fibre reinforced shotcrete

摘要

The air content and void structure of hardened shotcrete is essential for its durability and Received 18 July 2019 resistance against freeze thaw damage. However, producing a mix which is pumpable, Received in revised form 3 October 2019 shootable, and also meets durability requirements is not always easy. The situation is Accepted 8 October 2019 further complicated when adding fibres to the mix. This paper presents some observations concerning air content and air void systems of fresh and hardened fibre reinforced.