Development of Air-Enhanced Self-Compacting Concrete

Author(s): Masahiro Ouchi, Anuwat Attachaiyawuth
Paper category: Conference
Book Title: 8th International RILEM Symposium on Self-Compacting Concrete - SCC 2016
Editor: Kamal H. Khayat
ISBN: 978-2-35158-156-8
e-ISBN: 978-2-35158-157-5
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 15-24
Total Pages: 10
Language: English

Abstract: The authors have developed a bubble-lubricated Self-Compacting Concrete (SCC) and named it “Air-enhanced Self-Compacting Concrete (air-SCC)”. The level of self-compactability of air-SCC was similar to that of conventional SCC by making use of ball-bearing effect of entrained air bubbles. The purpose of the development of air-SCC was to make SCC a standard concrete so that the reliability of concrete structures with which designed performance may be attained in spite of the skill of its construction workers. No other material than ordinary Portland cement was in use. The unit cement content in air-SCC was around 370 kg, similar to that of conventional concrete and it was effective in reducing the unit cost of SCC. Air bubbles with smaller diameter were suitable for enhancing self-compactability. A mixing method in which not all the material are to be poured into the mixer and high dosage of air-entraining agent were effective in making air bubbles finer.

Online publication: 2016
Publication Type: full_text
Public price (Euros): 0.00