Date of Work should be mention: Marking of
the date of the casting of concrete,
construction of brick or block work, plastering is to be made on the structure
for identification as well as control of curing.
Work Should be as per Design: Concrete design
submitted by supplier has to be reviewed after ensuring its effectiveness / if
required can be established by third party agency before acceptance for using
for our site.
Checklist should be filled before starting work by Engineer: All the said
procedure, checklist is to be checked filled and documented then only activity
can be taken up.
Curing to be done for RCC members: Covering columns
with heasen cloth (jute bag), creating mortar / sprinklers for effective curing
arrangement in RCC structure.
Approved shuttering design to be use at site: For the
shuttering methodology adopted by the contractor should be reviewed changed in
principal if required after approval only it can be used at site.
Deshuttering to be done as per IS code: De-shuttering of
columns moulds, should not be done not less then 18 hours. For other structures
based on the spans can be done in guidance with respective IS code.
Shuttering Checking: For any sort of
special structure, form work design is to be established, checked thoroughly
for its effectiveness, after ascertaining its rigidity for pumping concrete
condition it can be adopted.
Cube Testing: A compressive
test of cubes results are to be established for 7th and 28th day as well as for
56 days. In case of Fly ash mixing is permitted in design mix, And Standard deviation should be monitored in
guidelines with IS 456.
Strength checkig if requied: In case of lower
strength up to the value of 85% of targeted strength Rebound hammer and
ultrasonic tests can be conducted based on results we can conclude that the
structure is ok, if this also resulting in lover strength / CTM results less
then 85% core tests are to be conducted to know stability of structure. Further
we can take advice of designer in respect of corrective action.
Post pour Checking: Post inspection
to be conducted and in cause of defective concrete is observed the loose
particles is to be removed, cavity has to be updated with dry mortar packing.
If cavities are for more depth cement pressure grouting is to be done to
maintain homogeneity of concrete structure.
Checking of matrial before use: For all incoming
materials like steel and cement manufactures test certificate is to be
verified. How ever the bar benders opinion has to be taken for bending and
re-bending before unloading.And third
party testing for 500MT / one test in case of reinforcement. For 5000 no of
bricks one set of bricks to be tested in our lab / one third party test at
100000 no of bricks results are to be established.
Material testing Certificate: All the materials
require the testing / certification should be rooted through QC personals and
there witness is to be ensured before acceptance at site.
Checking Sequence for Work: Checking sequence
will be in three level I.e. contractor engineer followed with builder engineer
and finally quality engineer for clearance.
Backfilling requirement: Backfilling of
the sides of buildings are to be tested with Procter modified density test to
95%. No of samples for core test is in the order of one for 300 Cu m / 1000 Sq
m.
Safety measures: All the activities should be done under the safety officers guidance and safety measures should be followed and checklist of safety work should be done by safety officers.
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