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Silica fume: Quiz

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Question 1: Because of its extreme fineness and high ________ content, silica fume is a very effective pozzolanic material.
Silicon dioxideOpalQuartzAmethyst

Question 2: Silica fume, also known as microsilica, is a fine-grain, thin, and very high surface area ________.
QuartzSilicon dioxideOpalAmethyst

Question 3: After environmental concerns necessitated the collection and ________ of silica fume, it became economically viable to use silica fume in various applications, in particular high-performance concrete[8].
Waste managementLandfillLandfill miningIncineration

Question 4: Silica fume is added to ________ concrete to improve its properties, in particular its compressive strength, bond strength, and abrasion resistance.
RawmillCement kilnCement millPortland cement

Question 5: Silica fume is a byproduct in the reduction of high-purity quartz with coke in ________ in the production of silicon and ferrosilicon alloys.
AluminiumElectric arc furnaceCarbonIron







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