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Study on the Effect of Recycled Coarse Aggregate on the Shrinkage Performance of Green Recycled Concrete

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  • Yang Yu

    (College of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, China)

  • Peihan Wang

    (College of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, China)

  • Zexin Yu

    (College of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China)

  • Gongbing Yue

    (College of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, China)

  • Liang Wang

    (College of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, China)

  • Yuanxin Guo

    (College of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, China)

  • Qiuyi Li

    (College of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, China)

Abstract

Shrinkage property is a significant indicator of the durability of concrete, and the shrinkage of green recycled concrete is particularly problematic. In this paper, construction waste was crushed and screened to generate simple-crushed recycled coarse aggregate (SCRCA). The SCRCA was then subjected to particle shaping to create primary particle-shaped recycled coarse aggregate (PPRCA). On this basis, the PPRCA was particle-shaped again to obtain the secondary particle-shaped recycled coarse aggregate (SPRCA). Under conditions where the dosage of cementitious material is 300 kg/m 3 and the sand rate is 38%, a new high-belite sulphoaluminate cement (HBSAC) with low carbon emission and superior efficiency was used as the basic cementitious material. Taking the quality of recycled coarse aggregate (SCRCA, PPRCA, and SPRCA) and the replacement ratio (25%, 50%, 75%, and 100%) as the influencing factors to prepare the green recycled concrete, the workability and shrinkage property of the prepared concrete were analyzed. The results show that the water consumption of green recycled concrete decreases as the quality of the recycled coarse aggregate (RCA) increases and the replacement ratio decreases, provided that the green recycled concrete achieves the same workability. With the improvement of RCA quality and the decrease of replacement ratio, the shrinkage of recycled concrete decreases. The shrinkage performance of green recycled concrete configured with the SPRCA completely replacing the natural coarse aggregate (NCA) is basically the same as that of the natural aggregate concrete (NAC).

Suggested Citation

  • 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.
  • Handle: RePEc:gam:jsusta:v:13:y:2021:i:23:p:13200-:d:690415
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    References listed on IDEAS

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    1. 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.
    2. Ana María Bravo-German & Iván Daniel Bravo-Gómez & Jaime A. Mesa & Aníbal Maury-Ramírez, 2021. "Mechanical Properties of Concrete Using Recycled Aggregates Obtained from Old Paving Stones," Sustainability, MDPI, vol. 13(6), pages 1-17, March.
    3. Valeria Superti & Cynthia Houmani & Ralph Hansmann & Ivo Baur & Claudia R. Binder, 2021. "Strategies for a Circular Economy in the Construction and Demolition Sector: Identifying the Factors Affecting the Recommendation of Recycled Concrete," Sustainability, MDPI, vol. 13(8), pages 1-32, April.
    4. 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.
    5. Mahdi Naeini & Alireza Mohammadinia & Arul Arulrajah & Suksun Horpibulsuk, 2021. "Recycled Glass Blends with Recycled Concrete Aggregates in Sustainable Railway Geotechnics," Sustainability, MDPI, vol. 13(5), pages 1-17, February.
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    1. Wanchai Yodsudjai & Kirati Nitichote, 2022. "Chloride Penetration Behavior of Concrete Made from Various Types of Recycled Concrete Aggregate," Sustainability, MDPI, vol. 14(5), pages 1-14, February.
    2. Andréia Arenari de Siqueira & Guilherme Chagas Cordeiro, 2022. "Sustainable Cements Containing Sugarcane Bagasse Ash and Limestone: Effects on Compressive Strength and Acid Attack of Mortar," Sustainability, MDPI, vol. 14(9), pages 1-15, May.
    3. Wenqiang Xing & Zhihe Cheng & Xianzhang Ling & Liang Tang & Shengyi Cong & Shaowei Wei & Lin Geng, 2022. "Bearing Properties and Stability Analysis of the Slope Protection Framework Using Recycled Railway Sleepers," Sustainability, MDPI, vol. 14(8), pages 1-11, April.
    4. Heba Marey & Gábor Kozma & György Szabó, 2022. "Effects of Using Green Concrete Materials on the CO 2 Emissions of the Residential Building Sector in Egypt," Sustainability, MDPI, vol. 14(6), pages 1-22, March.

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