High early concrete is faster setting and has an accelerated rate of developing strength earlier. For in-place concrete, this provides earlier finishing operations and permits for faster service times. Faster service times of concrete are crucial for road repair situations when rapid lane openings to traffic are required.
In cold weather, when setting time and strength gain are delayed, high early concrete is often necessary. High early concrete requires less time for proper curing and protection and allows for faster stripping and reuse of forms.
High early concrete is best used for repairs to allow quicker access to roadways, traffic areas, commercial slabs and pavements.