Roof Slab Curing Time

In standard industrial cases full strength concrete is recognized at 28 days.

Roof slab curing time. The removing of shuttering related with span of the roof slab. 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 enclosed area is continually flooded with water. Are cured by spraying water.

At seven days you should have concrete that is cured to 70 full strength or greater. 14 days for underside of slab beams arches above 4 5 meter up to 6 meter span. At this point the neighborhood dog will not leave his footprints in it but you should keep it clear of heavy equipment during this time period. Pavement slabs roof slab etc.

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. 48 hours for sides of foundations columns beams and walls. 21 days for underside of beams arches above 6 meter span and up to 9 meter span.

The precast concrete items are normally immersed in curing tanks for a certain duration. Are covered under water by making small ponds.