Dear Jim6758, fly ash and admixtures are also our remedy here in the tropics plus chilled water (at max 4C chiller capacity). But this is not usually a guarantee, for ambient temp of 34C, not to exceed the 32C max of ASTM C94, 11.9, note 16 or ACI 305R. For a3a, cement is usually processed in the kiln at about 1500C to get the necessary reactions. The burning or kiln process (clinker production) in the cement production is followed by clinker cooling, grinding or finish mill and the last is packaging. Thou there are cooling process this is not really cool as we think to facilitate easy grinding. So from the 1500C at the kiln finish cement are usually stored at cement plant silos at about 80-100C. This will take weeks before the cement temp in silos to cool down due to its huge mass and cement plants silos needs this temp for easy fluidization discharge. In short, there is no really cold cement (bulk) unless it is old stock. "Hot cement" is usually a concern of ready-mixed concrete suppliers like us for factors said by others in this discussion. Cold cement are those you find in bags/sacks.
