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  1. LewisLiew

    Hydrostatic force to clear muddy water at pile cap

    Is that appropriate if use hydrostatic force to clear muddy water inside pile cap fownwork which has a hole at side?
  2. LewisLiew

    Concrete cover pile cap

    May I know concrete cover for side pile cap count from binder tie link or main vertical bar?
  3. LewisLiew

    minimum distance between 2 pile caps

    Thanks for reply. Will use Pecaform to cast both pile caps. May I know the requirement for the gap between 2 pile caps? It that appropriate if we cast 2 pile caps close to each other?
  4. LewisLiew

    minimum distance between 2 pile caps

    What is minimum distance between 2 pile caps? My drawing show both pile caps touch each other. Shall I put polyfoam between pile caps?
  5. LewisLiew

    Ducting install outside of links beam?

    My Subcon installed ducting outside of links for a beam to fit a light point. Any rule which I can follow or any disadvantage?
  6. LewisLiew

    Ductings between top & bottom reinforcement

    ACI 6.3.9 said solid slab we need to put ductings between top & bottom rebar. How about RC staircase?
  7. LewisLiew

    Lift Hall call button and rebars

    Looking for opinion: Hall call button for a lift is 300(h)x150(w) and it located on junction of rc wall and rc separated beam, both are 230 width. Before concreting, when I inspected reinforcement, spacing 2 rebars with 20mm dia. left 100mm only. How can I fix it?
  8. LewisLiew

    Different concrete gred for beam and column

    Can I just concrete the column till height of beam with G30 together with beam eventhough column required G40? My consultant want us concrete separetely column till height of beam with G40.
  9. LewisLiew

    Different concrete gred for beam and column

    Vertical member like column and wall G40 while hor. Member like slab and beam G30. How to cast beam? Is that possible to cast beam and column's rebar together?
  10. LewisLiew

    Spacer bar requirement

    My spacer bar are cutted more than width of beam so I put it 45 degree from the beam with enough cover. Is that ok?
  11. LewisLiew

    Spacer bar requirement

    I am using spacer bar 25mm dia each of 1500 mm lgth of beam to separate 2 layer of rebars. Any requirement for lgth of spacer bar?
  12. LewisLiew

    Vibrating concrete with 12" to 24" thick each lift

    Is that ok if I discharge first layer fully then only start vibrator?
  13. LewisLiew

    Vibrating concrete with 12" to 24" thick each lift

    I will use mobile crane to drop concrete to 2.6 m deep pile cap. My workers will vibrate each lift of 12" thick concrete with 6" inside lower lift of concrete. My question is how many drum (0.7 cu.m/drum) should I drop before I need to start vibrate? Can I just fill out 12" thick of the pile...
  14. LewisLiew

    Split and extend tie rebar at corner pile cap

    A pile cap with L shape will be constructed. Tie bar in Internal corner will always split and extent into pile cap with lapping length. I understand that the tie bar is useless if I am not doing so. Why and what this rebar/ fenomena called?

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