Are covered under water by making small ponds.
Roof slab curing time.
The indian standard is 456 2000 recommends that curing duration of concrete must be at least seven days in case of ordinary portland cement at least ten days for concrete with mineral admixtures or blended cements are used.
Curing time for concrete.
Vertical retaining wall or plastered surfaces or concrete columns etc.
In standard industrial cases full strength concrete is recognized at 28 days.
Ideally the slab could be water cured for 7 days some builders on a tight schedule water cure for 3 days as this achieves approximately 80 of the benefit of water curing for 7 days.
The removing of shuttering related with span of the roof slab.
The precast concrete items are normally immersed in curing tanks for a certain duration.
But to answer the question of how long does concrete take to set concrete setting time is generally 24 to 48 hours.
The enclosed area is continually flooded with water.
21 days for underside of beams arches above 6 meter span and up to 9 meter span.
At seven days you should have concrete that is cured to 70 full strength or greater.
Are cured by spraying water.
Pavement slabs roof slab etc.
Water curing can be done after the slab pour by building dams with soil around the house and flooding the slab.