IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v12y2019i11p2187-d238267.html
   My bibliography  Save this article

Mechanical and Ultrasonic Testing of Self-Compacting Concrete

Author

Listed:
  • Hongbo Li

    (College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
    Ningxia Research Center of Technology on Water-saving Irrigation and Water Resources Regulation, Yinchuan 750021, China
    Engineering Research Center for Efficient Utilization of water Resources in Modern Agriculture in Arid Regions, Yinchuan 750021, China
    These authors contributed equally to this work and should be considered co-first authors.)

  • Hao Sun

    (College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
    These authors contributed equally to this work and should be considered co-first authors.)

  • Juncang Tian

    (College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
    Ningxia Research Center of Technology on Water-saving Irrigation and Water Resources Regulation, Yinchuan 750021, China
    Engineering Research Center for Efficient Utilization of water Resources in Modern Agriculture in Arid Regions, Yinchuan 750021, China)

  • Qiuning Yang

    (College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China)

  • Qingqing Wan

    (College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China)

Abstract

Based on the urban shantytown renovation project in Hongguang Town, Helan County, Ningxia, in Northwest China, the influence of fly ash and silica fume admixture on the mechanical properties of Self-compacting Concrete (SCC) was tested and analyzed in this work. The experimental tests including compressive strength, splitting strength, triaxial strength and an ultrasonic nondestructive test. Furthermore, the Back Propagation (BP) neural network algorithms were established. The results show that there is an obvious difference between the development law of compressive strength of SCC and that of ordinary concrete. The splitting pressure ratio of SCC is 1/10 to 1/8, while that of ordinary concrete is 1/13 to 1/10. Moreover, the peak strain, peak stress and initial stiffness of SCC increase with the increase of the confining pressure when compressed from three directions. In addition, the ultrasonic amplitude of SCC can reflect the changing laws of its compressive strength. As a conclusion, the addition of fly ash and silica fume increases the splitting pressure ratio of SCC. More importantly, the compressive strength formula for SCC with silica fume and a low content of fly ash is proposed, and the model equation between the amplitude and compressive strength is given. This study provides a reference for the mixture ratio of fly ash and silica fume in the application of SCC.

Suggested Citation

  • Hongbo Li & Hao Sun & Juncang Tian & Qiuning Yang & Qingqing Wan, 2019. "Mechanical and Ultrasonic Testing of Self-Compacting Concrete," Energies, MDPI, vol. 12(11), pages 1-15, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:11:p:2187-:d:238267
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/12/11/2187/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/12/11/2187/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Grzegorz Ludwik Golewski, 2022. "Combined Effect of Coal Fly Ash (CFA) and Nanosilica (nS) on the Strength Parameters and Microstructural Properties of Eco-Friendly Concrete," Energies, MDPI, vol. 16(1), pages 1-16, December.
    2. Xiongchao Lin & Wenshuai Xi & Jinze Dai & Caihong Wang & Yonggang Wang, 2020. "Prediction of Slag Characteristics Based on Artificial Neural Network for Molten Gasification of Hazardous Wastes," Energies, MDPI, vol. 13(19), pages 1-18, October.
    3. Hao Sun & Qingyuan Xu & Pengfei Yan & Jianguang Yin & Ping Lou, 2020. "A Study on Axial Compression Performance of Concrete-Filled Steel-Tubular Shear Wall with a Multi-Cavity T-Shaped Cross-Section," Energies, MDPI, vol. 13(18), pages 1-20, September.
    4. Hongbo Li & Hao Sun & Wanlong Zhang & Huiyan Gou & Qiuning Yang, 2019. "Study on Mechanical Properties of Self-Compacting Concrete and Its Filled in-Line Multi-Cavity Steel Tube Bundle Shear Wall," Energies, MDPI, vol. 12(18), pages 1-18, September.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:12:y:2019:i:11:p:2187-:d:238267. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.