FUNDAMENTAL STUDY ON PERFORMANCE EVALUATION OF CONCRETE USING UNPROCESSED CRUSHED STONE

DOI Web Site 1 References
  • HAYASHI Kazuhiko
    NATIONAL INSTITUTE OF TECHNOLOGY, KAGAWA COLLEGE（355 Chokushi-cho, Takamatsu-shi, Kagawa 761-8058, Japan）
  • HASEGAWA Yuki
    NATIONAL INSTITUTE OF TECHNOLOGY, KAGAWA COLLEGE（355 Chokushi-cho, Takamatsu-shi, Kagawa 761-8058, Japan）
  • MATSUMOTO Masayuki
    NATIONAL INSTITUTE OF TECHNOLOGY, KAGAWA COLLEGE（355 Chokushi-cho, Takamatsu-shi, Kagawa 761-8058, Japan）
  • YOSHIDA Yukitoshi
    KAGAWA CRUSHED STONE ASSOCIATION（1-12-1, Ritsurin-cho, Takamatsu-shi, Kagawa 760-0073, Japan）

Bibliographic Information

Other Title
  • 砕石ズリを骨材に有効利用したコンクリートの性能評価に関する基礎的検討

Abstract

<p>In the process of manufacturing crushed stone, high-quality new materials are used as aggregates for concrete, and unprocessed crushed stone including topsoil and fragile parts are used as roadbed materials. Therefore, it is being considered to make full use of natural resources. As the use of recycled concrete roadbed materials is expanding and the use of crushed stones for roadbed materials is shrinking, it is desirable to increase the choices of applications for the effective use of natural aggregate resources. In this study, it was examined to utilize all the unprocessed crushed stone with a continuous grading of 0mm to 30mm for concrete without partial utilization. As a result, it is possible to ensure the mechanical performance of both strength and elastic modulus. When only unprocessed crushed stone is used as the aggregate, segregation resistance is inferior due to the extreme unbalanced grading of aggregates. It was shown that segregation resistance can be ensured by compensating for the insufficient grading of aggregates.</p>

Journal

References(1)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top