Utilization of lime-based alternative hydration to develop cementless UHPFRC
| Autor: | Sung-Hoon Kang, Hyunuk Kang, Yang-Hee Kwon, Nankyoung Lee, Juhyuk Moon |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Curing (food preservation)
Materials science Silica fume Metallurgy technology industry and agriculture Slag Building and Construction engineering.material complex mixtures Chemical reaction law.invention Portland cement Mechanics of Materials law Ground granulated blast-furnace slag visual_art Architecture engineering visual_art.visual_art_medium Pozzolanic reaction Safety Risk Reliability and Quality Civil and Structural Engineering Lime |
| Zdroj: | Journal of Building Engineering. 45:103668 |
| ISSN: | 2352-7102 |
| DOI: | 10.1016/j.jobe.2021.103668 |
| Popis: | This study presents that ultra-high-performance fiber-reinforced composite can be manufactured based on alternative hydrations of slag hydration and pozzolanic reaction. Without portland cement, combinations of hydrated lime, silica fume, and ground granulated blast furnace slag or quartz powder were shown to be effective in exhibiting superior workability as well as strength. The slag hydration and the pozzolanic reaction contributed significantly to strength development, especially at the early ( 28 days), respectively. When favorable conditions for the pozzolanic reaction were provided (elevated temeprature curing or the absence of hydraulic materials which perferentially consume water), the chemical reaction from the hydrated lime and silica fume, and resulting strength evolution were experimentally verified. Along with the efficiency of the pozzolanic reaction, it was found that the quartz powder acted as a supplementary silica source at 60 °C when the primary source of silica fume was depleted. |
| Databáze: | OpenAIRE |
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