Cement acts as a binding agent when used in concrete…
Once the concrete slab is poured, the post-slab stage begins—a critical phase that ensures structural strength, durability, and readiness for the next construction steps. Proper curing, reinforcement, and quality checks during this stage play a vital role in preventing future structural issues. This guide explores post-slab construction techniques, challenges, and essential quality tests.
The post-slab phase refers to all activities that take place after the slab is poured. This includes curing, formwork removal, structural reinforcement, and preparing the slab for further construction. Ensuring proper curing and conducting quality tests help enhance the slab’s strength and longevity while preventing cracks and settlement issues.
Once the slab is poured, several key construction techniques are implemented to ensure the structure’s stability and readiness for further work. These techniques focus on curing, strengthening and preparing the slab for subsequent construction phases.
Curing is a critical process that ensures the concrete gains the required strength and durability. Moisture retention is maintained for 7 to 28 days through various curing methods, such as:
Keeping the slab surface continuously wet by creating small water ponds.
Applying curing compounds or plastic sheets to prevent moisture loss.
Used in cold weather or precast structures to accelerate hydration.
Once the slab reaches the desired strength, the formwork (shuttering) is carefully removed to avoid damaging the concrete. The timing of formwork removal depends on factors like slab thickness, curing conditions and concrete mix strength.
Before walls and flooring are finalised, key utility installations are completed, including:
Laying pipes for water supply, drainage and waste disposal.
Embedding conduits and junction boxes for safe electrical connections.
Applying coatings or membranes to prevent moisture seepage, especially in bathrooms, kitchens and basements.
Once reinforcement and utility installations are complete, the slab surface is prepared for finishing:
Ensuring a smooth, even surface for flooring.
Tiling, marble, or wooden flooring is laid based on project requirements.
Any surface imperfections are identified and filled to enhance durability.
Despite careful planning, post-slab construction comes with challenges such as:
Improper curing or excessive load can lead to cracks.
Poor material quality or incorrect mix ratios can affect durability.
If the subgrade is not well compacted, the structure may experience uneven settling.
Inadequate waterproofing can lead to seepage issues.
Essential Checks and Tests for post slab casting
Strength Check by Rebound Hammer (NDT)
Brick Test (All Field Test)
Find a professional nearby to help you with construction planning
Access a wide-range of construction services to help you get your project on track
Silt Test
pH Test
Brick Test
Slump Cone
Test