IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v268y2023ics0360544223000634.html
   My bibliography  Save this article

Experimental analysis of Nano-SiO2 modified waterborne epoxy resin on the properties and microstructure of cement-based grouting materials

Author

Listed:
  • Liu, Weitao
  • Sun, Yida
  • Meng, Xiangxi
  • Qin, Yueyun

Abstract

To improve the delayed effect of waterborne epoxy resin (WEP) on cement hydration and improve the early compressive strength of the composite paste. Nano-SiO2 (NS) modified WEP was prepared by in-situ polymerization and mixed into cement injection materials. The characteristics and microstructure of composite grouting materials were tested and analyzed, as well as the microscopic synergistic mechanism of each slurry component. The results demonstrated that increasing the NS concentration in WEP shortens the setting time of the composite slurry, and enhances slurry stability. When the content of NS in WEP was 4%, the compressive strength of specimens at 3 and 28 days increased by 33.71% and 39.03%, respectively. The stress-strain curve showed obvious stress step, besides, the stiffness and toughness were enhanced. The macroscopic failure form demonstrates the fine-grained rock's properties. The composite of NS with WEP promotes the production of C–S–H and C-A-S-H in cement and facilitates the fine crystallization of hydration products. The hydration crystals grow on the NS on the surface of WEP, thus, bridging the resin film and cement particles. In addition, the adsorption of Ca2+ by NS reduces the concentration of Ca2+ between interfaces and promotes the conversion of cementitious materials to hydration products.

Suggested Citation

  • Liu, Weitao & Sun, Yida & Meng, Xiangxi & Qin, Yueyun, 2023. "Experimental analysis of Nano-SiO2 modified waterborne epoxy resin on the properties and microstructure of cement-based grouting materials," Energy, Elsevier, vol. 268(C).
    • Handle: RePEc:eee:energy:v:268:y:2023:i:c:s0360544223000634
    DOI: 10.1016/j.energy.2023.126669
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544223000634
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2023.126669?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Dong, Kai & Ni, Guanhua & Nie, Baisheng & Xu, Yuhang & Wang, Gang & Sun, Lulu & Liu, Yixin, 2021. "Effect of polyvinyl alcohol/aluminum microcapsule expansion agent on porosity and strength of cement-based drilling sealing material," Energy, Elsevier, vol. 224(C).
    2. Weitao Liu & Yueyun Qin & Xiangxi Meng & Lifu Pang & Mengke Han & Zengmou Song, 2021. "Basic Experimental Study of Plasticity Material for Coal Rock Fracture Grouting Based on RSM-PCA Technology," Energies, MDPI, vol. 14(15), pages 1-20, July.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Xi, Xian & Jiang, Shuguang & Shi, Quanlin, 2023. "Study on the flow and bonding-reinforcement characteristics of composite foam slurry material used to block mine leakage," Energy, Elsevier, vol. 263(PD).

    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:eee:energy:v:268:y:2023:i:c:s0360544223000634. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    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.