Question: An engineer is proposing using local limestone from a nearby foundation excavation for aggregate. You ask them about the possibility of the alkali - silca

An engineer is proposing using local limestone from a nearby foundation excavation for aggregate. You ask them about the possibility of the alkali-silca
reaction, where small amounts of silica in a rock aggregate react with cement in hard-to-control ways. The engineer says "I am not worried, It's a limestone
and they never contain silica". Are they right??
Yes
No
An engineer is proposing using local limestone

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