Topic
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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TL;DR: In this article, a sustainable self-compact concrete (SCC) was proposed by substantially substituting natural aggregates with RCA and cement with SCM by using a combination of fly ash, slag and/or silica fume.
123 citations
TL;DR: In this article, the influence of addition of 1, 2 and 3% Basalt fiber volume fraction in three different mixes of high-performance concrete (HPC) is investigated and the results showed that the addition of up to 2% fiber volume together with mineral admixtures improved the compressive strength.
122 citations
Journal Article•
TL;DR: The effect of methylcellulose, silica fume, and latex on the degree of dispersion of short carbon fibers in cement paste was assessed and methyl cellulose was superior to latex in giving a high degree of fiber dispersion at fiber volume fractions < 1 percent, as measured by this technique.
Abstract: The effect of methylcellulose, silica fume, and latex on the degree of dispersion of short carbon fibers in cement paste was assessed. This degree, as indicated by the ratio of the measured volume of electrical conductivity to the calculated value, and the effectiveness of the fibers in enhancing the tensile/flexural properties attained by using methylcellulose and silica fume were higher than those attained by using methylcellulose alone or latex. Methylcellulose was superior to latex in giving a high degree of fiber dispersion at fiber volume fractions < 1 percent, as measured by this technique. Latex resulted in superior tensile-flexural properties and lower content and size of air voids than methylcellulose. With the fiber content fixed at 0.53 vol. percent, the degree of fiber dispersion, as measured by this technique, decreased with increasing latex-cement ratio. As a result the flexural toughness decreased monotonically with increasing latex-cement ratio and the flexural strength attained a maximum at an intermediate latex-cement ratio of 0.15. In contrast, both flexural toughness and strength increased monotonically with increasing latex-cement ratio when fibers were absent.
122 citations
TL;DR: In this paper, the effects of superplasticizer (SP) and of mineral admixtures on selfcompactability and compressive strength of mortar and of self-compacting high performance concrete (SCHPC) were investigated.
121 citations
TL;DR: In this article, uniaxial compression of carbon fiber-reinforced cement pastes in the elastic regime caused reversible decreases in both longitudinal and transverse electrical resistivities.
121 citations