Monday, July 15, 2013

METHOD STATEMENT FOR CONCRETING WORKS

• Level 1
Submission of concrete design mix to superintending officer

• Level 2
Upon approval of the design mix, Contractor shall prepare for concrete trial mix .
Trial mixed shall be perform before any concreting works start.
The trial mixed will consist of delivery time required from the mixing plan to construction site. Delivery time shall not exceed 2 hour from the time of mixing until pouring concrete. after 2 hours  Concrete will start to harden ( initial  set)

• Level 3
The trial mix also will produce the  Slump value  and  the strength of the concrete for 3 days, 7 days, 14 days  and  28 days
If the first trial mixed fail, contractor must repeat the trial  mixed until it meet the requirement or contractor will submit new design mixed and repeat the step 1 to 3 until it achieved the requirement.

• Level 4
The Proposed concrete mixed can than be use for the construction after it meet all the minimum requirement.

• Level 5
Before any concreting work, Contractor shall submit request for inspection form to enable S.O or S.O.R do the inspection for installation of Reinforcement, Formworks and any other requirement.
No concreting works shall proceed until the S.O or S.O.R had given written approval to proceed concreting via Approval chit.
Approval chit shall be submitted at least 1 day prior to concreting works.

• Level 6
Upon receiving approval for proceed with concreting work, contractor shall ensure that they have  at least 2 concrete vibrator, lifting machine, concrete bucket and gunny sac for concrete curing.

•Level 7
There shall be no concreting works shall proceed during rainy days. Shall there be rain, contractor must immediately stop the work.
On the concreting day every truck of concrete shall be tested for its slump and concrete cube shall be taken and mark clearly with the date and location of the concreting work.
Number of cube shall be at least 6 numbers. 3 numbers each for 7 days strength and 28 days strength or else as directed by S.O or S.O.R.
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