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15) All other requirements pertaining to Materials, Storage of Ingredients, production, delivery, batching equipments, quality control, sampling, order processing etc. as specified in IS 4926:2003 – “READY- MIXED CONCRETE-CODE OF PRACTICE” shall be binding on the producer / supplier of concrete.
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16) Any additional compliance criteria (project specific) shall be declared to the producer by site engg prior to supply and shall be mutually agreed upon in terms of definition, tolerance, frequency
of assessment, method of test and significance of result. If there is any specific requirement other than
above requirements like temperature control, early strength etc. for a particular project, such
requirements shall be intimated to the supplier by in advance.
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17) The action to be taken in case of non-compliance shall be declared and mutually agreed upon.
18) In case of failure of strength (as estimated by cube strength), Cores shall be drilled out from the structure with strength failure and shall be tested for compressive strength and equivalent cube strength must meet the requirements of relevant BIS standard. No other NDT shall be entertained. The cost of Core drilling and testing shall be born by the supplier of concrete. Further the results shall be forwarded to structural consultant for his opinion and his decision shall be binding on both the parties – and the Supplier of concrete.
19) If the equivalent cube strength of the drilled cores does not meet the requirements of BIS codes, then the matter shall be referred to structural consultant and as per the recommendation of the Structural Consultant, the structure shall be demolished and reworked or strengthened. The cost for such demolition/ breaking, reworking including cost of labour and material such as steel reinforcement, concrete, electricity etc. or the cost of strengthening the structure shall be born by the supplier.
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