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Mechanical Properties of a New Type Recycled Aggregate Concrete Interlocking Hollow Block Masonry

Author

Listed:
  • Jie Li

    (Key Laboratory of Concrete and Pre-Stressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China
    School of Civil Engineering, Southeast University, Nanjing 210096, China)

  • Hao Zhou

    (Key Laboratory of Concrete and Pre-Stressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China
    School of Civil Engineering, Southeast University, Nanjing 210096, China)

  • Wenwen Chen

    (Key Laboratory of Concrete and Pre-Stressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China
    School of Civil Engineering, Southeast University, Nanjing 210096, China)

  • Zhongfan Chen

    (Key Laboratory of Concrete and Pre-Stressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China
    School of Civil Engineering, Southeast University, Nanjing 210096, China)

Abstract

Considering the advantages of energy conservation and reducing the construction skill requirement of the workers, a new type of interlocking hollow block using recycled aggregates concrete (IHB-RAC) with the compressive strength up to 10 Mpa was proposed, which could help improve more than 56% of the construction efficiency compared to commonly used concrete hollow blocks. In order to study the mechanical properties and promote the application of this new type block in building engineering, the masonries considering different strengths of mortar and the concrete used in the grouting holes were designed, and the corresponding compressive and shear strength, as well as the failure mode of the masonries were studied according to the test results. Then, experimental results were compared with the calculated values obtained from Chinese code GB50003-2011 to check the suitability of the standards. In order to make an accurate prediction of the compressive strength of the masonry, modifying coefficients were suggested considering the positive contributions of the connecting keys. In addition, according to the test results, an appropriate calculation method for accurately predicting the shear strength of the grouted IHB-RAC masonry was proposed by separately considering the effort of the mortar and the grouting hole concrete.

Suggested Citation

  • Jie Li & Hao Zhou & Wenwen Chen & Zhongfan Chen, 2021. "Mechanical Properties of a New Type Recycled Aggregate Concrete Interlocking Hollow Block Masonry," Sustainability, MDPI, vol. 13(2), pages 1-15, January.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:2:p:745-:d:480109
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    Citations

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    Cited by:

    1. Zhenwen Hu & Zhe Kong & Guisheng Cai & Qiuyi Li & Yuanxin Guo & Dunlei Su & Junzhe Liu & Shidong Zheng, 2021. "Study of the Properties of Full Component Recycled Dry-Mixed Masonry Mortar and Concrete Prepared from Construction Solid Waste," Sustainability, MDPI, vol. 13(15), pages 1-17, July.
    2. Yang Yu & Peihan Wang & Zexin Yu & Gongbing Yue & Liang Wang & Yuanxin Guo & Qiuyi Li, 2021. "Study on the Effect of Recycled Coarse Aggregate on the Shrinkage Performance of Green Recycled Concrete," Sustainability, MDPI, vol. 13(23), pages 1-15, November.

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