Author: Rajan Patel

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Prior to Backfilling

Posted on by Rajan Patel
Back-filling around the structure is going to start, as a QC Engineer I will send the following comments to site team and ask for their actions prior to backfilling.
1. Tie rod holes to be filled.
2. The structure below ground level to be protected.(C-4 Paint and Polyethylene sheet)
3. Waste concrete, Binding Wire, Nails, Wooden Ply, Polythene etc to be removed.
Tie rod holes to be filled and structure to be protected.
Waste concrete, Binding Wire, Nails, Wooden Ply, Polythene etc to be removed.
The structure below ground level to be protected.(C-4 Paint and Polyethylene sheet).
The structure below ground level to be protected.(C-4 Paint and Polyethylene sheet).
The structure below ground level to be protected.(C-4 Paint and Polyethylene sheet).
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Surface Preparation

Posted on by Rajan Patel
Why site engineer’s don’t include surface preparation in their activity?

Preparation for Light weight concrete work is going on in checklist items surface preparation always get ignored
site team will be notified to rectify following comments prior to screeding.
Tie rod holes to be filled.
Defect in concrete to be repaired.
Tie rod holes to be filled.
Debris to be removed.
Parapet columns to be casted prior to screed.
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How important is Surface Preparation before concrete footing.

Posted on by Rajan Patel

Non-Conformance in work due to Proper compaction not done for Footing PCC.

Footing and ground structure are designed for ground with an assumed or
known ground bearing pressure, If there is a loose spot at the bottom of the excavation, It must be removed. Levels can be made up with crushed stone, sand or sometimes
low strength concrete.

We generally use concrete as blinding to seal and protect the surface of bearing stratum, this also
provides a firm base for erection, shuttering or block wall true to line and level.

And as our site is near to sea it’s not worth to ignore proper compaction so we will redo it again
after proper preparation.

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Dome form work

Posted on by Rajan Patel

Dome form-work for lobby room, the construction of the centering for domes is more complicated than that of most other types of vaults. Formwork could be two way either horizontal or Radial we have a smaller dome and radial formwork will be easier for us in the picture we are making the mainframe with 21mm wooden ply, which will support two layers of ply sheet which are flexible enough to do the maths.

Dome form-work in place, reinforcement work in progress, Once reinforcement work completed a low slump concrete will be used for the casting.

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Reinforcement Inspection at Swimming Pool (The QC View)

Posted on by Rajan Patel
 As a QC Engineer this is what i do almost every day “Reinforcement Inspection” 75% of my inspection either small structure or big I find some comments i wonder how the site team don’t see them.

So comments notified to site team its hardly a two hour job for them to do the rectification, I will get a coffee for myself by than.
 

1. Stirrup sway in beam.
2. Proper lapping at columns
3. Cover to reinforcement
4. Cleaning of re-bars
5. Proper placing of reinforcement
Sway in beam stirrup
Sway in beam stirrup
Improper lapping at column
Cover to reinforcement to be provided.
Slurry to be cleaned from re-bars
Placement of re-bar not completed tying of re-bar to be done.
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Whome Shoud I Approch For Quality At Workplace.

Posted on by Rajan Patel
As a QC Engineer, I have to be proactive all the time, I remember one of my senior told me to once be lazy sometime no problem but stay 100% active at-least two days in a week you will do good. Its kind of works in construction. Anyways.

During site visits, I observed lots of activity which can lead to the customer complain and rework, and I have to notify all of them to construction depending open the issue this could be the construction worker working at the site to the project whoever I think at first can take action for my comments.

For the below two issues for the first one I will inform to site engineer as he is the responsible person to prepare the inspection request for the second one I informed to the charge-hand at site to immediately  talk with the site engineer regarding the quality issue and the same issue I will take to weekly meeting so it will be conveyed to all site team.

1. No inspection request has been raised for the casting of the lintel.
2. Striking of form work has been started near swimming pool area which was casted yesterday night circa 11.30 pm.
No inspection has been raised for the casting of the lintel.
Early stricking of form work
Early striking of form work