Common use of Other Tests Clause in Contracts

Other Tests. (i) If the work cubes do not give the required strengths, the Engineer reserves the right to ask the Contractor to dismantle such portions of the work which in his opinion are unacceptable and re-do the work to the standard required at the Contractor's cost. (ii) The following tests shall be conducted whenever the required to be strength achieved on cement, sand, coarse aggregate, water in accordance with the relevant Indian Standards. Tests on cement shall include (i) fineness test, (ii) test for normal consistency, (iii) test for setting time, (iv) test for soundness, (v) test for tensile strength , (vi) test for compressive strength, (vii) test for heat of hydration (by experiment and by calculations) in accordance with I.S. 269. Tests on sand shall include (i) sieve test, (ii) test for organic impurities, (iii) decantation test for determining clay and silt content, (iv) specific gravity test, (v) test for unit weight and bulk age factor, (vi) test for sieve analysis and fineness modulus. Tests on coarse aggregate shall include (i) sieve analysis, (ii) specific gravity and unit weight of dry, loose and rodded aggregate, (iii) soundness and alkali aggregate reactivity, (iv) petrography examination, (v) deleterious materials and organic impurities, (vi) test for aggregate crushing value. b. Load Test on Members or any other Tests (i) In the event of any work being suspected of material or workmanship or both, the Engineer requiring its removal and reconstruction may order, or the Contractor may request that it should be load tested in accordance with the following provisions: (ii) The test load shall be 125 percent of the maximum superimposed load for which the structure was designed. Such test load shall not be applied before 56 days after the effective hardening of concrete. During the test, struts strong enough to take the whole load shall be placed in position leaving a gap under the members, The test load shall be maintained for 24 hours before removal. (iii) If within 24 hours of the removal of the load, the structure does not show a recovery of at least 75 percent of the maximum deflection shown during the 24 hours under load, the test loading shall be repeated after a lapse of at least 72 hours, The structure shall be considered to have failed to pass the test if the recovery after the second test is not at least 75 percent of the maximum deflection shown during the second test. If the structure is certified as failed by the Engineer, the cost of the load test shall be borne by the Contractor. (iv) Any other tests, e.g. taking out in an approved manner concrete cores, examination and tests on such cores removed from such parts of the structure as directed by the Engineer, sonic testing, etc., shall be carried out by the Contractor, if so directed, at no extra cost.