specifications - FAACO - Federal Aviation Administration Contract ...

5. FAILURE TO MEET REQUIREMENTS:FTWIC-2235June, 20091.04 SUBMITTALS:a) Should the 7-day strengths shown by the test specimens fall below therequired values, additional curing shall be performed on those portions ofthe structures represented by the test specimens at the Contractor'sexpense. Test cores shall be obtained and tested in accordance withASTM Method of Obtaining and Testing Specimens from Drilled Coresand Sawed Beams of Concrete, Designation C-42. If additional curingdoes not give the strength required, the Owner reserves the right torequire strengthening, replacement of those substandard portions of thestructure, or additional testing, at the Contractor's expense.b) Upon receipt of the Contractor's written request, substandard concretework may be re-examined in place by non-destructive testing methods orcore samples, in accordance with ACI 301. The services of anindependent testing laboratory shall be retained and all expenses paid bythe Contractor. Laboratory results shall be evaluated by the ContractingOfficer, who shall make the final decision on acceptability of theconcrete in question. Core sample holes shall be repaired to thesatisfaction of the Contracting Officer.Submittals shall be in accordance with Section 01300, SUBMITTALS and shall include:A. Trial mix design, materials in the design, and independent laboratory test results for eachclass of concrete.B. Seven (7) day and twenty-eight (28) day compressive strength test results.C. Manufacturer's literature on materials. Submit certifications on bagged materials.D. Schedule of concrete placements.E. Drawing showing location of proposed construction joints.1.05 REFERENCES AND STANDARDS:Mixing, sampling, placing, curing and testing of concrete, and the materials used shall be incompliance with the latest revisions of the following standards, unless otherwise noted in theContract Documents.A. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)PUBLICATIONS:ASTM C-31ASTM C-33Test Methods of Making and Curing Concrete Test Specimens in theFieldSpecifications for Concrete Aggregates03300-6