| Title |
Characterization of novel lightweight self-compacting cement composites with incorporated expanded glass, aerogel, zeolite and fly ash |
| Authors |
Adhikary, Suman Kumar ; Rudžionis, Žymantas ; Tučkutė, Simona |
| DOI |
10.1016/j.cscm.2022.e00879 |
| Full Text |
|
| Is Part of |
Case studies in construction materials.. Amsterdam : Elsevier. 2022, vol. 16, art. no. e00879, p. 1-19.. ISSN 2214-5095 |
| Keywords [eng] |
aerogel ; expanded glass ; lightweight concrete ; microscopy ; porosity ; self-compacting cement composite |
| Abstract [eng] |
This study is aimed at preparing thermal insulating lightweight self-compacting cement composites (LWSCCC) below the density of 1400 kg/m3 by using lightweight minerals and aggregates. Study results showed that incorporation of porous-structured expanded glass aggregate (EGA) enhances the demand for water to maintain the workability and increases the risk of higher water absorption capacity. The use of a portion of aerogel as a replacement of EGA increases porosity by 7.3%, resulting in lowering of compressive strength by 49% and a 7% increase in water absorption capacity. However, the use of aerogel in combination with EGA cement composite can reach a density of less than 1000 kg/m3, maintaining self-compaction ability and adequate strength. The gaps between the cementitious materials and aerogel shown in SEM indicate poor aerogel particle adhesion with cementitious materials. Additionally, X-ray diffraction analysis and thermal conductivity results were analyzed in this study. |
| Published |
Amsterdam : Elsevier |
| Type |
Journal article |
| Language |
English |
| Publication date |
2022 |
| CC license |
|
