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Quality control and durability of concrete with recycled aggregate

Research Project

Project/Area Number 16560399
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Civil engineering materials/Construction/Construction management
Research InstitutionOkayama University

Principal Investigator

AYANO Toshiki  Waste Management Research center, Associate professor, 廃棄物マネジメント研究センター, 助教授 (10212581)

Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2006: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2005: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2004: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsRecycled aggregate / Water absorption / Slump / Strength / Drying shrinkage strain / Sulfate attack resistance / 吸水量 / 耐硫酸塩性 / 耐久性 / アルカリ骨材反応 / 発生量 / コンクリートがら
Research Abstract

The quantity of demolished concrete is about 40,000,000 tons a year in Japan. 65% of demolished concrete was crushed and made good use as an aggregate for pavement base and so on in 1997. This amount reached to 98% in 2000. The use of demolished concrete is increased year after year. But it is used as pavement base or the reclamation materials as ever. The amount of demolished concrete is expected to be ten times in a few decades. Many researchers have already found it possible to produce a normal strength concrete with the required slump by using recycled concrete aggregate. However, it has been also clear that the durability of concrete with recycled concrete aggregate is sometimes very inferior to that of concrete with virgin aggregate even if the compressive strength of both types of concrete are the same.
The concrete with recycled concrete aggregate was inferior to that with virgin aggregate in most properties of concrete. The water absorption of recycled aggregate is very important factor to express the deterioration of each performance on concrete strength, drying shrinkage and resistance to sulfate attack. The effect of cement paste of recycled aggregate on the carbonation is small. The carbonation of concrete with crushed concrete specimen cast in our own laboratory is almost same as that with virgin aggregate. The big carbonation speed modulus of concrete with crushed demolished concrete may be due to the foreign objects in the demolished concrete. The conclusion is as follows: the performance of concrete with recycled aggregate is inferior to that with virgin aggregate. But the effect of recycled aggregate on deterioration of concrete performances can be expressed by the water absorption of recycled aggregate.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (19 results)

All 2007 2006 2005 2004

All Journal Article (18 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] 水酸化アルミニウムによるアルカリ骨材反応抑制効果2007

    • Author(s)
      石井あきな, 藤井隆史, 渡辺純一, 片岡宏治, 綾野克紀
    • Journal Title

      材料 Vol. 56(掲載予定)

    • NAID

      130002085812

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 水酸化アルミニウムを用いたコンクリートの耐久性に関する研究2007

    • Author(s)
      田中誠司, 片岡宏治, 渡辺純一, 綾野克紀
    • Journal Title

      コンクリート工学年次論文集 Vol. 29(掲載予定)

    • NAID

      110009696940

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Effect of Aluminum Hydroxide on Control of Alkali-aggregate Reaction2007

    • Author(s)
      Akina ISHII, Takashi FUJII, Jun-ichi WATANABE, Koji KATAOKAand Toshiki AYANO
    • Journal Title

      Journal of JSMS Vol. 56

    • NAID

      130002085812

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Durability of concrete with Alminum hydroxide2007

    • Author(s)
      Seiji TANAKA, Koji KATAOKA, Jun-ichi WATANABE, Toshiki AYANO
    • Journal Title

      Proceeding of JCI Vol. 29

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 水酸化アルミニウムによるアルカリ骨材反応抑制効果2007

    • Author(s)
      石井あきな, 藤井隆史, 渡辺純一, 片岡宏治, 綾野克紀
    • Journal Title

      材料 Vol.56 (掲載予定)

    • NAID

      130002085812

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 水酸化アルミニウムによるコンクリートの耐久性改善に関する研究2007

    • Author(s)
      田中誠司, 片岡宏治, 渡辺純一, 綾野克紀
    • Journal Title

      コンクリート工学年次論文集 Vol.29 (掲載予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 再生骨材の吸水率が再生コンクリートの強度2005

    • Author(s)
      綾野克紀
    • Journal Title

      コンクリートテクノ Vol. 24 No. 3

      Pages: 52-57

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Effect of pH on strength and durability of steel-slag hydrated matrix2005

    • Author(s)
      4.T.AYANO, T.Fujii, K.Sakata
    • Journal Title

      Proceedings ConMat '05 3-5

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Effect of water absorption of recycle aggregate on strength and durability of recycled concrete2005

    • Author(s)
      Toshiki AYANO
    • Journal Title

      Journal of Concrete technology Vol.24, No.3

      Pages: 52-57

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Effect of pH on strength and durability of steel-slag hydrated matrix2005

    • Author(s)
      T.AYANO, T.Fujii, K.Sakata
    • Journal Title

      Proceedings ConMat '05

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 再生骨材の吸水率が再生コンクリートの強度および耐久性に及ぼす影響2005

    • Author(s)
      綾野克紀
    • Journal Title

      コンクリートテクノ Vol.24, No.3

      Pages: 52-57

    • NAID

      110009694420

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Effect of pH on strength and durability of steel-slag hydrated matrix2005

    • Author(s)
      T.AYANO, T.Fujii, K.Sakata
    • Journal Title

      Proceedings ConMat '05 Vol.26, No.1

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Durability of Concrete with Recyccled Aggreagate2004

    • Author(s)
      Toshiki AYANO, Ryoichi KAWANAKA, Kenji SAKATA
    • Journal Title

      conditions of Environment and Loading Vol. 1

      Pages: 117-124

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 再生骨材を用いた自己充填コンクリートの二次製品への適用2004

    • Author(s)
      馬場政教, 河中涼一, 綾野克紀, 阪田憲次
    • Journal Title

      コンクリート工学年次論文集 Vol. 26 No. 1

      Pages: 1545-1550

    • NAID

      110009695106

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Durability of Concrete with Recycled Aggregate2004

    • Author(s)
      Toshiki AYANO, Ryoichi KAWANAKA, Kenji SAKATA
    • Journal Title

      Conditions of Environment and Loading Vol. 1

      Pages: 117-124

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Application of self-compacting high performance concrete with recycle aggregate to factory product2004

    • Author(s)
      Masanori BABA, Ryoichi KAWANAKA, Toshiki AYANO, Kenji SAKATA
    • Journal Title

      the proceedings of JCI Vol.26, No. 1

      Pages: 1545-1550

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Durability of Concrete with Recycled Aggregate2004

    • Author(s)
      Toshiki AYANO, Ryoichi KAWANAKA, Kenji SAKATA
    • Journal Title

      Conditions of Environment and Loading Vol.1

      Pages: 117-124

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 再生骨材を用いた自己充填コンクリートの二次製品への適用2004

    • Author(s)
      馬場政教, 河中涼一, 綾野克紀, 阪田憲次
    • Journal Title

      コンクリート工学年次論文集 Vol.26, No.1

      Pages: 1545-1550

    • NAID

      110009695106

    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] アルカリ骨材反応の抑制方法およびセメント組成物2006

    • Inventor(s)
      綾野克紀, 片岡宏治, 渡辺純一
    • Industrial Property Rights Holder
      大阪兵庫生コンクリート工業組合, 神戸生コンクリート協同組合
    • Filing Date
      2006
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary

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Published: 2004-04-01   Modified: 2016-04-21  

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