Aggregate Tests Clause Samples

Aggregate Tests. A. A break in production of a particular class of concrete shall not constitute the need for additional testing if the following items are submitted to the City: a. Aggregate sieve analysis; b. Organic impurities in sands for concrete; c. Petrographic examination of aggregates; and d. Letter of evaluation prepared by the professional signatory of the mix design review letter indicating that the material initially tested is still representative. B. Fine aggregate shall be tested in accordance with CAN/CSA A23.2-7A, “Organic Impurities in Sands for Concrete”. 1. Fine aggregate producing an organic impurity colour darker than the Standard colour shall be rejected in the absence of a satisfactory record of performance in a similar class of concrete (minimum 30 tests over the last 12 months). Clauses 4.2.3.3.3.2 (a) and (b) of CAN/CSA A23.1- 14 shall not apply. 2. Testing in accordance with CSA A23.3-2A and 5A shall not have more than 3.0% passing an 80 µm sieve. C. The potential for deleterious alkali-aggregate reactivity for fine and coarse aggregates shall be assessed in accordance with CAN/CSA A23.2-27A. This assessment shall include the risk level associated with Structure size and environment, the level of prevention required to achieve the Design Service Life of the Structure and the determination of the appropriate preventative measures, including testing in accordance with CAN/CSA A23.2-28A. Current (less than 24 months old) test data evaluating the potential alkali-silica reactivity of aggregates tested in accordance with CAN/CSA A23.2-14A or CAN/CSA A23.2-25A is required. In the absence of test data, the aggregate shall be considered highly reactive. D. Petrographic analysis on the coarse and fine aggregates shall be performed in accordance with CAN/CSA A23.2-15A by experienced personnel employed by a CAN/CSA A283 certified laboratory. The petrographic analysis report shall be signed and sealed by either a Professional Engineer, a Professional Geologist, or a Geological Engineer. 1. The (weighted) petrographic number of the coarse aggregates shall not exceed 130, and the ironstone content shall not exceed 0.8%. 2. Ironstone content in fine aggregate (material retained on the 2.5 mm sieve) shall not exceed 1.5% by total dry mass of fine aggregate for all classes of concrete in Table 4-1.6.1-1 [Concrete Classes] except Pile Concrete. E. Material test reports shall be current according to the required frequency of analysis in Table 4-4.5.4-1 [Material T...
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Aggregate Tests. Samples of the fine and coarse aggregates to be used shall be selected by the Engineer for tests at least 30 days before the actual concreting operations are to begin. It shall be the responsibility of the contractor to designate the source or sources of aggregate to give the Engineer sufficient time to obtain the necessary samples and submit them for testing. No aggregate shall be used until official advice has been received that it has satisfactorily passed all test, at which time written authority shall be given 'for its use.
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Related to Aggregate Tests

  • Performance Tests Contractor shall perform Performance Tests in accordance with Section 11.2 of the Agreement and Attachment S.

  • Performance Testing (a) All performance tests of the Project, including any Initial Performance Test required in Section 2 of Appendix VIII, will be performed in accordance with the test procedures set forth in Appendix VIII (“Performance Test”), including additional procedures and protocols related to Performance Testing as mutually agreed between Buyer and Seller (“Test Procedures”). Seller shall bear all costs and receive all revenues, if applicable, associated with all Performance Tests. (b) After the Initial Delivery Date and during the Delivery Term, Buyer will have the right to conduct a Performance Test (“Buyer Performance Test”) no more than once a calendar year to demonstrate whether the Project is capable of delivering the Distribution Services at the Contract Capacity. Within 30 calendar days following a Buyer Performance Test, Seller will have the right to retest the Project with a Performance Test (“Seller Retest”). For the avoidance of doubt, the results of any Seller Retest will supersede the results of the preceding Buyer Performance Test. (i) If a Buyer Performance Test or, if a corresponding Seller Retest has occurred, a Seller Retest demonstrates the Project is capable of delivering Distribution Services at or above ninety-nine percent (99%) of the Initial Contract Capacity, the Contract Capacity will remain the Initial Contract Capacity; (ii) If a Buyer Performance Test or, if a corresponding Seller Retest has occurred, a Seller Retest demonstrates the Project is capable of delivering Distribution Services at more than or equal to eighty-five (85%) of the Initial Contract Capacity, but less than ninety-nine percent (99%) of the Initial Contract Capacity (“Testing Band”), the Contract Capacity will be automatically adjusted (upwards or downwards) to the capacity commensurate with the amount of Distribution Services the Project delivered during the Performance Test within the Testing Band. (iii) If a Buyer Performance Test or, if a corresponding Seller Retest has occurred, a Seller Retest demonstrates the Project is not capable of delivering Distribution Services of at least eighty-five percent (85%) of the Initial Contract Capacity, an Event of Default shall occur in accordance with Section 7.1(a)(viii).

  • Meter Testing Company shall provide at least twenty-four (24) hours' notice to Seller prior to any test it may perform on the revenue meters or metering equipment. Seller shall have the right to have a representative present during each such test. Seller may request, and Company shall perform, if requested, tests in addition to the every fifth-year test and Seller shall pay the cost of such tests. Company may, in its sole discretion, perform tests in addition to the fifth year test and Company shall pay the cost of such tests. If any of the revenue meters or metering equipment is found to be inaccurate at any time, as determined by testing in accordance with this Section 10.2 (Meter Testing), Company shall promptly cause such equipment to be made accurate, and the period of inaccuracy, as well as an estimate for correct meter readings, shall be determined in accordance with Section 10.3 (Corrections).

  • Right to Observe Testing Developer and Connecting Transmission Owner shall each notify the other Party, and the NYISO, in advance of its performance of tests of its Attachment Facilities. The other Party, and the NYISO, shall each have the right, at its own expense, to observe such testing.

  • Acceptance Tests 11.1 If the Contract provides acceptance tests for Goods and/or the result of Services after their completion and/or delivery to the Purchaser, the acceptance shall only be considered as definitive when such tests have demonstrated the compliance of the Goods and/or the result of the Services to the requirements in the Contract. 11.2 Where the Contract provides for an acceptance procedure in the presence of both parties, at the successful completion of such procedure, the Purchaser shall issue the Supplier with an acceptance certificate which shall authorise the Supplier to invoice the Purchaser for any payment due on such acceptance. 11.3 The Purchaser shall at its discretion be entitled to issue and acceptancecertificate with reserves. The Supplier shall be obliged to remedy any non-conformities within the period set out in the acceptance certificate. Any payment which would otherwise have been due on acceptance may be withheld by the Purchaser in whole or part until the non- conformities underlying the reserves have been remedied.