CONCRETE POUR CHECKING
The
Pre Construction Stage Can Be Broadly Classified As Pour Planning Stage And Pour
Checks Stage.
1) Once the pour is planned, it is required to check the various sub-activities listed earlier article in parallel for speedy clearance of the pour.
ARTICLE: What Is Form Work? | Types | Formwork Checklist | Removal Of The Formwork |
2) This
is ensured to avoid any delay required for rectification if any after the pour is ready.
Following
procedures are to be followed during pour checking:
Site Register: During
parallel checking record of sub-activities
are to be cleared or observation to be recorded requires
rectification. This should be maintained
at the site regularly.
Pour Card: This
gives pour inspection information. This enables us to know about all concerned
officials have extended their clearance for the specific pour.
A Checklist can be prepared for specific activities,
which shall help for clearing the pour
card.
Drawing control record: Reference drawing must be checked with an updated drawing control record. Further
ECN, DCN, FCN, or hold if any between
various grids and elevation also need to be checked. Details of pour plan and sequence of
concreting to be done at the site and must
be properly defined before the start of the work.
Other requirements:
Following
information is also to be identified
before the start of the work.
1) Type
of finish required.
2) Slope
and its extent on the surface of the concrete.
3) Location
of the sump in a pour if any.
4) Location
of green cutting requirement in a pour.
5) Level
of bulb of PVC water stops, its location and alignment.
6) Location
and alignment of EP’s.
7) Planned
schedule for availability of workers during and immediately after the
concreting. If required the shift arrangement
must be ensured.
8) In addition
to above following details are also important for Site Supervisor / Site Engineer
9) Concrete
requisition slip shall be given at least 24 hrs. in advance for all major pours to ensure availability of
approved construction material.
10)
Pour
card clearance should be ensured before the start of the work.
11)
Assessment
of job hazard and preventive measures to be ensured by the Site Engineer.
12)
Aptitude
for safety and housekeeping helps for faster and safer completion.
13)
Post-concrete
inspection report to be prepared for all major pours.
Following are also required
before the start of concrete
1) To ensure
availability and functioning of vibrators.
2) Proper
walkways.
3) Adequate
Lighting arrangement.
4) Availability
of walky-talkies / Phones.
5) Covering
material, for sun/rain protection.
6) Dewatering
arrangement: - If work is being done during the monsoon and at lower elevation.
7) Stand
- by the arrangement of machinery to be ensured before the start of the work.
8) Stand
- by the arrangement of power supply to be ensured before the start of the work.
9) Ensure
the availability of supervision staff for the next few hours after the last concrete is placed at the site to maintain the proper finishing, slope, etc as per requirement.
10) Awareness
of the reporting system to whom matter to be informed, in case of emergencies. (Knowledge of telephone
nos. of the immediate superior official is
essential.)
11) During
pour checking apart from the above requirement should important for a site supervisor/site
engineer.
12) Pour
card i.e pour inspection clearance.
13) Assessment
of job hazard and preventive measures.
14) Aptitude
for safety and housekeeping.
15) Post-concrete
inspection report
16) Concrete
requisition slips at least 24 hrs in advance to be given to ensure, availability of approved material for
the work.
17) Post-concrete
inspection report
18) Rectification,
if found any non-conformance during Post concrete inspection.
RESPONSIBILITIES OF
SUPERVISOR / SITE ENGINEERS:
CHECKING REQUIREMENT PRE CONCRETING:
1) Site engineer has to ensure that necessary checking at the pour wise reference to various agencies have been
checked and cleared.
2) Assessment
of safe access, approach for machinery, worker etc is available.
3) Requirement
w.r.t ramp, the slope of access & approach and skilled manpower to handle the machinery like
placer boom, concrete pumps, vibrators,
concrete pipes, and necessary stand by spare
parts are available.
4) Proper
communication system from the batching plant to the place of pouring the concrete is available.
5) Details
regarding the location from the grid to grid - indicating final level/slope or finish
to be maintained is identified.
6) Arrangement
for green cutting and stand by arrangement for
concreting is ensured.
CHECKING REQUIREMENT DURING CONCRETING
1) Skilled
manpower like a carpenter is available to review the position of formwork during concreting.
2) Proper
slope /levels/finishing/green cutting to be made on the finished concrete surface.
3) Alignment
of the support system of formwork needs continuous attention during concreting.
CHECKING REQUIREMENT POST CONCRETING
One the last batch of concrete
is received and placed at the site, site supervisor/Engineer
responsibility dose does not end with the placement of the final load of concrete. Before he leaves
the site he must ensure the arrangement
required as per planning of the pour is available. Further the requirement of maintaining green cutting
/ protection of the concrete surface from
sun/rain and curing arrangement for the
area to be ensured effectively.
Post
concrete inspection to done as per requirement w.r.t.
1)
Alignment.
2)
Dimension.
3)
Levels.
4)
Slopes.
5)
Type of Finish.
6)
Location & Levels of embedded parts.
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