Practices for crack control of concrete in Japan

Author(s): T. Yamamoto and T. Ohtomo
Paper category: conference
Book title: Crack Control of Mass Concrete and Related Issues concerning Early-Age of Concrete Structures
Editor(s): F. Toutlemonde and J.-M. Torrenti
Print ISBN: 978-2-35158-125-4
e-ISBN: 978-2-35158-126-1
Publisher: RILEM Publications SARL
Publication year: 2012
Pages: 193 - 200
Total Pages: 8
Language: English

Abstract: Several Japanese practices for crack control are presented at first. Although usage of low heat type cement is one of most common applications, associated construction technologies are also playing important roles to realize good quality concrete. Bridge foundation concrete for the world longest suspension bridge, underground LPG tank and world deepest immersed tube tunnel are presented. Secondly, procedures to predict thermal cracking of concrete based on JCI (Japan Concrete Institute) Guideline are presented. The objective structure is LNG tank with 80 m in diameter and 36 m in height. By using 3-D FEM analysis, countermeasures to mitigate thermal cracking are studied. Since such quantitative study is considered to be a rational approach and can be studied in advance (in design stage), the method presented in JCI Guideline has recently been becoming a prevailing procedure for early age crack control in Japan.

Online publication: 2012-07-20
Publication Type: full_text
Public price (Euros): 0.00