Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of microlimestone on properties of self-consolidating concrete with manufactured sand and mineral admixture
Self-consolidating concrete (SCC) with manufactured sand (MSCC) is crucial to guarantee the quality of concrete construction technology and the associated property. The properties of MSCC with different microlimestone powder (MLS) replacements of retreated manufactured sand (TMsand) are investigated in this study. The result indicates that high-performance SCC, made using TMsand (TMSCC), achieved high workability, good mechanical properties, and durability by optimizing MLS content and adding fly ash and silica fume. In particular, the TMSCC with 12% MLS content exhibits the best workability, and the TMSCC with 4% MLS content has the highest strength in the late age, which is even better than that of SCC made with the river sand (Rsand). Though MLS content slightly affects the hydration reaction of cement and mainly plays a role in the nucleation process in concrete structures compared to silica fume and fly ash, increasing MLS content can evidently have a significant impact on the early age hydration progress. TMsand with MLS content ranging from 8% to 12% may be a suitable alternative for the Rsand used in the SCC as fine aggregate. The obtained results can be used to promote the application of SCC made with manufactured sand and mineral admixtures for concrete-based infrastructure.
Effect of microlimestone on properties of self-consolidating concrete with manufactured sand and mineral admixture
Self-consolidating concrete (SCC) with manufactured sand (MSCC) is crucial to guarantee the quality of concrete construction technology and the associated property. The properties of MSCC with different microlimestone powder (MLS) replacements of retreated manufactured sand (TMsand) are investigated in this study. The result indicates that high-performance SCC, made using TMsand (TMSCC), achieved high workability, good mechanical properties, and durability by optimizing MLS content and adding fly ash and silica fume. In particular, the TMSCC with 12% MLS content exhibits the best workability, and the TMSCC with 4% MLS content has the highest strength in the late age, which is even better than that of SCC made with the river sand (Rsand). Though MLS content slightly affects the hydration reaction of cement and mainly plays a role in the nucleation process in concrete structures compared to silica fume and fly ash, increasing MLS content can evidently have a significant impact on the early age hydration progress. TMsand with MLS content ranging from 8% to 12% may be a suitable alternative for the Rsand used in the SCC as fine aggregate. The obtained results can be used to promote the application of SCC made with manufactured sand and mineral admixtures for concrete-based infrastructure.
Effect of microlimestone on properties of self-consolidating concrete with manufactured sand and mineral admixture
Front. Struct. Civ. Eng.
Qu, Fulin (Autor:in) / Li, Wengui (Autor:in) / Zeng, Xiaohui (Autor:in) / Luo, Zhiyu (Autor:in) / Wang, Kejin (Autor:in) / Sheng, Daichao (Autor:in)
Frontiers of Structural and Civil Engineering ; 14 ; 1545-1560
01.12.2020
16 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
High-strength high-performance manufactured sand concrete with no mineral admixture
| Europäisches Patentamt | 2016
PERFORMANCE OF SELF-CONSOLIDATING CONCRETE MADE WITH VARIOUS ADMIXTURE COMBINATIONS
| British Library Conference Proceedings | 2003
Performance of self-consolidating concrete made with various admixture combinations
| Tema Archiv | 2003
Admixture for use of manufactured sand in concrete
| British Library Conference Proceedings | 2002