Preparation and rheological performance analysis of volcanic ash and metakaolin based geopolymer grouting materials

This study investigated the possibility of using volcanic ash and metakaolin (MK) to prepare road grouting materials. The effects of different contents of MK and water glass(WG) on the mechanical properties, setting time and rheological properties of the materials were investigated separately. The materials science testing methods were also used to observe the reaction mechanism of the geopolymer products. The test results showed that the compressive strength increased with the content of MK and SS. The average flow curve of geopolymer grouts fitted the Bingham model. The multilayer lamellar microstructure of MK increases the rheological parameters of the pastes. While the WG suspends VA and MK particles, which reduces the rheological parameters of the pastes. It can be concluded from the results of microscopic experiments that the MK reduces side reactions as well as sodium by-products, while WG produces more silica-aluminate filling the voids which enhances the compressive strength.

• Record URL:
  • https://doi.org/10.1080/14680629.2022.2092024
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14680629
• Supplemental Notes:
  • © 2022 Informa UK Limited, trading as Taylor & Francis Group 2022. Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Yang, Zhanning
  • Zhou, Siqi
  • Li, Feng
  • 0000-0002-1448-6430
  • Zhang, Rongrong
  • Zhu, Xingyi
• Publication Date: 2023-6

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 1614-1635
• Serial:
  • Road Materials and Pavement Design
  • Volume: 24
  • Issue Number: 6
  • Publisher: Taylor & Francis
  • ISSN: 1468-0629
  • EISSN: 2164-7402
  • Serial URL: http://www.tandfonline.com/loi/trmp20

Subject/Index Terms

• TRT Terms: Compressive strength; Concrete pavements; Grout; Kaolin; Rheological properties; Volcanic ash
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01895998
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 15 2023 5:36PM