Development of High-Strength Light-Weight Cementitious Composites with Hollow Glass Microspheres

X. Li, Y. Yao, D. Zhang, Z. Zhang, Y. Zhuge

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Achieving both light-weight and high-strength cementitious composites (HSLWCCs) is challenging. In this study, hollow glass microspheres (HGMs) were used to develop a HSLWCC. Different amounts of HGMs were incorporated in the cement mixture and the associated effects on the engineering properties and microstructure were investigated. The results showed that the density and strength decreased with increasing HGM content. Compressive strength of the HSLWCC decreased significantly when the HGM content increased from 30 to 40% and decreased slightly with further increasing HGM content, while the density generally reduced linearly with increasing HGM content. Structural efficiency of the HSLWCC increased when the HGM content was 30% and then decreased significantly at HGM content of 40%. In particular, a floatable cementitious composite with a density of ~970 kg/m3 and compressive strength of ~31 MPa was developed by incorporating 60% of HGMs. Additionally, two failure modes (i.e., (i) debonding of interface and (ii) crush of HGM) were found in the high-strength light-weight cementitious composite (HSLWCC), with the former dominating in HSLWCC with high HGM content and the later dominating in HSLWCC with low HGM content.

Original languageEnglish
Title of host publicationNanotechnology in Construction for Circular Economy - Proceedings of NICOM7
EditorsWenhui Duan, Lihai Zhang, Surendra P. Shah
PublisherSpringer Science and Business Media Deutschland GmbH
Pages241-249
Number of pages9
ISBN (Print)9789819933297
DOIs
StatePublished - 2023
Externally publishedYes
EventNanotechnology in construction, including deep advances in cement chemistry, nanotechnology, artificial intelligence, robotics, concrete technology, and extreme engineering (blast, impact and fire) - Melbourne, Australia
Duration: 31 Oct 20222 Nov 2022

Publication series

NameLecture Notes in Civil Engineering
Volume356 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

ConferenceNanotechnology in construction, including deep advances in cement chemistry, nanotechnology, artificial intelligence, robotics, concrete technology, and extreme engineering (blast, impact and fire)
Country/TerritoryAustralia
CityMelbourne
Period31/10/222/11/22

Keywords

  • High-strength light-weight cementitious composites
  • Hollow glass microspheres
  • Structural efficiency

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