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Silica fume

About: Silica fume is a research topic. Over the lifetime, 10177 publications have been published within this topic receiving 173857 citations.


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Journal ArticleDOI
TL;DR: In this paper, the influence of nano-silica with three different silica-based materials (quartz, ultrafine quartz, and silica fume) on hydration, rheology, porous structure, and compression strength in cement pastes with 2.5% cement replacement.

78 citations

Journal ArticleDOI
TL;DR: In this article, the effectiveness of transition zone densification on the fiber-cement paste system was investigated, and it was concluded that the transition-zone densification technique should be effective in fiber-cement systems in which bond strength is controlled by cohesive failure of the transition zone material.

78 citations

Journal ArticleDOI
TL;DR: In this article, the performance of concrete mixes incorporating 7% and 10% of silica fume (SF) as a cement replacement was investigated in three exposure conditions, and the results showed that plain type II portland cement performed better than blended SF cement under cyclic wetting and drying conditions.

77 citations

Journal ArticleDOI
TL;DR: In this paper, the pore solution compositions of paste samples produced with Ordinary Portland Cement (PC), slag 25%, 50% and 75%, fly ash 30%, condensed silica fume (SF) 7%, and a ternary blend of 50% PC, 43% slag and 7% SF were determined.

77 citations

Journal ArticleDOI
TL;DR: In this article, two rapid chloride permeability tests (RCPT) and UCT) were employed and compared using concrete specimens cast with effective w/b ratio of 0.48 and applying seven days of curing.
Abstract: In this study, the two rapid chloride permeability tests; the AASHTO’s rapid chloride permeability test (RCPT) and the University of Cape Town (UCT) chloride conduction test were employed and compared using concrete specimens cast with effective w/b ratio of 0.48 and applying seven days of curing. Fly ash and blast furnace slag were used in a systematic replacement of cement at the levels of 25%, 50%, and 70%. In addition, silica fume was added at 10% cement replacement. The matrix therefore, was either a binary or ternary blend of cementitious materials. The experimental results were tested for significance using standard statistical methods. The results indicate that ternary blends of 25% fly ash and 10% silica fume exhibited significant decrease in charge passed compared to 25% fly ash. Similarly, the charge passed in the ternary blends of 25% BFS and 50% BFS with addition of 10% silica fume showed lower charge compared to their respective binary blends. The UCT test has been faster and more convenient to use than the RCPT. However, when binary and ternary blends were compared, the RCPT proved to be more sensitive in showing appreciable differences in the values obtained while such differences were insignificant when the UCT test was used.

77 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
2023485
2022944
2021621
2020726
2019779