TY - GEN
T1 - Development of High-Strength Light-Weight Cementitious Composites with Hollow Glass Microspheres
AU - Li, X.
AU - Yao, Y.
AU - Zhang, D.
AU - Zhang, Z.
AU - Zhuge, Y.
N1 - Publisher Copyright:
© 2023, The Author(s).
PY - 2023
Y1 - 2023
N2 - 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.
AB - 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.
KW - High-strength light-weight cementitious composites
KW - Hollow glass microspheres
KW - Structural efficiency
UR - http://www.scopus.com/inward/record.url?scp=85172194463&partnerID=8YFLogxK
U2 - 10.1007/978-981-99-3330-3_25
DO - 10.1007/978-981-99-3330-3_25
M3 - 会议稿件
AN - SCOPUS:85172194463
SN - 9789819933297
T3 - Lecture Notes in Civil Engineering
SP - 241
EP - 249
BT - Nanotechnology in Construction for Circular Economy - Proceedings of NICOM7
A2 - Duan, Wenhui
A2 - Zhang, Lihai
A2 - Shah, Surendra P.
PB - Springer Science and Business Media Deutschland GmbH
T2 - Nanotechnology in construction, including deep advances in cement chemistry, nanotechnology, artificial intelligence, robotics, concrete technology, and extreme engineering (blast, impact and fire)
Y2 - 31 October 2022 through 2 November 2022
ER -