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Plain cement Concrete in Foundation

Work Procedure For PCC (Plain cement concrete)

Earthwork excavation for PCC

  • Check all Earth work excavation for trenches, footings, underground tanks, retaining walls, lift walls etc. exactly to match the required dimensions specified in structural drawings.
  • Check the bottom level before starting concrete works.
  • Keep ready all tools and materials required for PCC work. If required, use shuttering otherwise concrete to be done for full width of excavation.
  • Take necessary precautions and safety measures, while removing loose earth, filled earth, and slushy soil in order to avoid sudden collapse of huge earth.
  • Safety supervisors must monitoring these activities of removing earth, filling in pans, taking out from excavation area and stacking in safe location.
  • Remove all loose earth from foundation pits before placing of PCC.
  • Take care to sprinkle water and ram in foundation pit before placing plain cement concrete in foundation.

Segregation of concrete

  • Care should be taken while using RMC directly into the excavation pit, Check height off fall of concrete into the pit.
  • Height should not be more than 1 m. For deeper footings, use chute of longer length and adjust the height, so that the concrete falling into the pit is within 1 m depth. By this we can control segregation of concrete

Compaction, levelling and finishing :

  • Compaction of PCC work : Should be properly done to get smooth even levelling course and finishing.
  • Loose coarse aggregate can be picked up from the surface.
  • Finally check the top level of concrete with Dumpy level.
  • While doing Concreting for inside building and for floor PCC work, the earth surface should be well compacted, in such a way that it satisfy the compact test results (By achieving 95% of Proctor density with respect to the natural soil).
  • Anti-termite treatment to be done as per specifications and manufacturer’s instructions.
  • Giving Broom finishing for top surface of Concrete is highly advisable for good bondage for further works like footing concrete, retaining wall concreting or CM for flooring works.
  • Calibrated instruments : Measuring tape and levelling instruments.
  • Records : Measurement book, Pour card.
Excavation surface is maintaining it's level and shuttering is ready for PCC
PCC leveling and compaction is in process
Final round of compaction using plate vibrator for concrete laying
PCC completed and shuttering works for first slab in progress
Close up view of top surface of PCC with broom finishing
Simultaneous activities of earth work, concrete and raft reinforcement
Concrete unloading using long chute from RMC transit mixer

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15/4, gurunath 2 A cross Hanumagirinagar, Chikkallasandra Main Road Subramanyapura,
Bengaluru – 560061
info@myhomemydesign.in

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