what are the disadvantages of high silica cement?
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disadvantages of silica fume in concrete
Silica fume concrete is too viscous and difficult to apply.it is not easy to wipe the surface.
Silica fume requires a high amount of water and needs to be used with a superplasticizer.
The price of silica fume is relatively high compared to cement and fly ash.
More items...•22-Oct-2018
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High silica will make the cement (i) very slow hardening and (ii) do not attain full strength for a considerable period
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