建築材料における回収した骨材を使用したコンクリートの性状に関する実験検討

鈴木 澄江; 陣内 浩; 荒井 正直; 棚野 博之; 鹿毛 忠継; 辻本 一志; 松沢 晃一; 土屋 直子; 桝田 佳寛

doi:10.3130/aijt.26.1

Materials and Construction

EXPERIMENTAL STUDY ON PROPERTY OF RECLAIMED AGGREGATE FOR CONCRETE AS BUILDING MATERIALS

Sumie SUZUKI, Hiroshi JINNAI, Masanao ARAI, Hiroyuki TANANO, Tadatsugu KAGE, Kazushi TSUJIMOTO, Koichi MATSUZAWA, Naoko TSUCHIYA, Yoshihiro MASUDA

Author information

Sumie SUZUKI
Japan Testing Center for Construction Materials
Hiroshi JINNAI
Dept. of Architecture, Faculty of Engineering, Tokyo Polytechnic Univ.
Masanao ARAI
Testing and Research Center, General Building Research Corporation
Hiroyuki TANANO
Building Materials and Components, Building Research Institute
Tadatsugu KAGE
Building Materials and Components, Building Research Institute
Kazushi TSUJIMOTO
ZENNAMA
Koichi MATSUZAWA
Building Materials and Components, Building Research Institute
Naoko TSUCHIYA
National Institute for Land and Infrastructure Management, Ministry of Land, Infrastructure, Transport and Tourism
Yoshihiro MASUDA
Utsunomiya Univ.

Keywords: Reclaimed aggregate, Exchange ratio, Fresh property, Mechanical property, Shrinkage, Condition of use

JOURNAL FREE ACCESS

2020 Volume 26 Issue 62 Pages 1-6

DOI https://doi.org/10.3130/aijt.26.1

Details

Abstract

In this experimental study, we focus on the Ready-mixed concrete factory using reclaimed aggregate for concrete as building materials. In some Ready-mixed concrete factories, we mixed concrete using reclaimed aggregate, and tested fresh concrete and physical properties. The results show the following points: (1) concrete of using reclaimed aggregate until 20% is same as concrete using original aggregate in testing lab. and site plant (2) a reclaimed coarse aggregate kept for 1 month after collection can use ready-mixed concrete (3) a reclaimed coarse aggregate can be applied to strength class 45 in JIS A 5308.

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