High Slag Cement Concrete with higher than average replacement ratio (e.g. 30 – 40% and above) is particularly sensitive with the early curing conditions, and therefore strict requirements should be imposed, such as:
Early curing should be carried out before the concrete’s final solidification (e.g. spray the curing compounds, use wet burlap or cotton mats etc);
Moisture-retaining curing for at least 7 days;
When the replacement ratio is above 50%, moisture-retaining curing period should be extended to at least 14 days.