Effects of basalt powder and silica fume on ultra-high-strength cementitious matrix: A comparative study
Understanding the effects of basalt powder on the microstructures and hydration products of ultra-high-strength cementitious matrices (UHSCMs) can contribute to the application of basalt powder in ultra-high-performance concrete. This study assesses the effects of basalt powder and silica fume on ce...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-12-01
|
| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522005290 |
| _version_ | 1828182964896268288 |
|---|---|
| author | Manlin Shen Lixiao Zhou Zuyong Chen Yinong Shen Botao Huang Jianfu Lv |
| author_facet | Manlin Shen Lixiao Zhou Zuyong Chen Yinong Shen Botao Huang Jianfu Lv |
| author_sort | Manlin Shen |
| collection | DOAJ |
| description | Understanding the effects of basalt powder on the microstructures and hydration products of ultra-high-strength cementitious matrices (UHSCMs) can contribute to the application of basalt powder in ultra-high-performance concrete. This study assesses the effects of basalt powder and silica fume on cementitious matrices by strength examination, microstructure analysis, and material characterization. The results prove the feasibility of adding basalt powder to UHSCMs. Both basalt powder and silica fume can function as reactive additives for cementitious matrices and improve silicate polymerization in calcium silicate hydrate (C-S-H) gels. The calcium-enrichment of the cementitious matrices containing basalt powder leads to the decalcification of the C-S-H structure, the refinement of the pore structure, and the decrease in the strength of UHSCMs. Moreover, a high-temperature curing procedure can alleviate the above adverse effects of basalt powder on the strength of cementitious matrices. The findings of this study are useful for improving the sustainability of concrete materials with high and ultra-high performance. |
| first_indexed | 2024-04-12T06:25:58Z |
| format | Article |
| id | doaj.art-6603b82e5a824ac2885c07c60e176952 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-04-12T06:25:58Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-6603b82e5a824ac2885c07c60e1769522022-12-22T03:44:08ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01397Effects of basalt powder and silica fume on ultra-high-strength cementitious matrix: A comparative studyManlin Shen0Lixiao Zhou1Zuyong Chen2Yinong Shen3Botao Huang4Jianfu Lv5Zhejiang Huian Engineering Quality Inspection Co., Ltd., Hangzhou 310000, ChinaZhejiang Huian Engineering Quality Inspection Co., Ltd., Hangzhou 310000, ChinaZhejiang Huian Engineering Quality Inspection Co., Ltd., Hangzhou 310000, ChinaZhejiang Huian Engineering Quality Inspection Co., Ltd., Hangzhou 310000, China; College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China; Corresponding author at: Zhejiang Huian Engineering Quality Inspection Co., Ltd., Hangzhou 310000, China.Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China; Corresponding author.College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaUnderstanding the effects of basalt powder on the microstructures and hydration products of ultra-high-strength cementitious matrices (UHSCMs) can contribute to the application of basalt powder in ultra-high-performance concrete. This study assesses the effects of basalt powder and silica fume on cementitious matrices by strength examination, microstructure analysis, and material characterization. The results prove the feasibility of adding basalt powder to UHSCMs. Both basalt powder and silica fume can function as reactive additives for cementitious matrices and improve silicate polymerization in calcium silicate hydrate (C-S-H) gels. The calcium-enrichment of the cementitious matrices containing basalt powder leads to the decalcification of the C-S-H structure, the refinement of the pore structure, and the decrease in the strength of UHSCMs. Moreover, a high-temperature curing procedure can alleviate the above adverse effects of basalt powder on the strength of cementitious matrices. The findings of this study are useful for improving the sustainability of concrete materials with high and ultra-high performance.http://www.sciencedirect.com/science/article/pii/S2214509522005290Cementitious matrixBasalt powderMicrostructureHydrationSilica fumeUltra-High-Performance Concrete (UHPC) |
| spellingShingle | Manlin Shen Lixiao Zhou Zuyong Chen Yinong Shen Botao Huang Jianfu Lv Effects of basalt powder and silica fume on ultra-high-strength cementitious matrix: A comparative study Case Studies in Construction Materials Cementitious matrix Basalt powder Microstructure Hydration Silica fume Ultra-High-Performance Concrete (UHPC) |
| title | Effects of basalt powder and silica fume on ultra-high-strength cementitious matrix: A comparative study |
| title_full | Effects of basalt powder and silica fume on ultra-high-strength cementitious matrix: A comparative study |
| title_fullStr | Effects of basalt powder and silica fume on ultra-high-strength cementitious matrix: A comparative study |
| title_full_unstemmed | Effects of basalt powder and silica fume on ultra-high-strength cementitious matrix: A comparative study |
| title_short | Effects of basalt powder and silica fume on ultra-high-strength cementitious matrix: A comparative study |
| title_sort | effects of basalt powder and silica fume on ultra high strength cementitious matrix a comparative study |
| topic | Cementitious matrix Basalt powder Microstructure Hydration Silica fume Ultra-High-Performance Concrete (UHPC) |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522005290 |
| work_keys_str_mv | AT manlinshen effectsofbasaltpowderandsilicafumeonultrahighstrengthcementitiousmatrixacomparativestudy AT lixiaozhou effectsofbasaltpowderandsilicafumeonultrahighstrengthcementitiousmatrixacomparativestudy AT zuyongchen effectsofbasaltpowderandsilicafumeonultrahighstrengthcementitiousmatrixacomparativestudy AT yinongshen effectsofbasaltpowderandsilicafumeonultrahighstrengthcementitiousmatrixacomparativestudy AT botaohuang effectsofbasaltpowderandsilicafumeonultrahighstrengthcementitiousmatrixacomparativestudy AT jianfulv effectsofbasaltpowderandsilicafumeonultrahighstrengthcementitiousmatrixacomparativestudy |