WHAT IS HARDCORE IN BUILDING CONSTRUCTION

WHAT IS HARDCORE

Hardcore filling

Hardcore is a layer of a building with infilled materials which comprises of stones, broken blocks, graded bricks, larger sides of granites, etc.

Hardcore is a layer of a building with infilled materials which comprises of stones, broken blocks, graded bricks, larger sides of granites, etc.

When you built to DPC Damp Proof Course  level, you may need to apply hardcore after filling up to a level almost the same with the last block on the wall. Hardcore is applied after filling the internal part of your foundation with laterite or sharp sand.
On filling, ramming may be used to compact the soil in order to avoid voids which may exist within the soil.
After ramming, it is then necessary to apply rods/wire mesh and concrete.

IMPORTANCE OF HARDCORE

  1. Hardcore provides a stable bed for the concrete slab and foundation.
  2. Hardcore solidifies the base upon which the german concrete sits on i.e it helps to resist pressure of dead and imposed loads on the ground floor as it transfer this loads to the foundation.
  3. Hardcore helps in isolating concrete slab from a subsoil and to form a dry hard surface.
  4. Hardcores provides a good base for buildings which serves as a platform for the base of the building.
  5. Hardcore helps to save cost. This is because the amount of cement and granite that would have been used for oversite concrete is reduced as stones or boulders are used to reduce the depth of void.
  6. In swampy site, hardcore is used to provide a firm working surface and to prevent contamination of the lower part of wet concrete during placing and compacting.
  7. Hardcore reduces the amount of rising ground water moisture but cannot eliminate the need for waterproof membrane.
  8. The Oversite concrete slap can be protected against sulphate by a layer of bitumen felt of sheeting placed on the hardcore.

Abasiekeme George

Architect by profession, Political Analyst, Blogger and Publisher @ mybuildingconstruction.com, Writer, Critic, and a Good Governance Advocate.

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