Laserfiche WebLink
D. A record of annual calibration of testing equipment performed by an independent third party that has 1)standards <br /> that are traceable to the National Institute of Standards and Technology, and 2)a formal reporting procedure, <br /> including published test forms. <br /> • The Contractor shall provide samples for quality assurance testing in conformance with the provisions in these <br /> specifications and the special provisions. <br /> • Prequalification and production sample splices shall be 1)a minimum length of 1.5 meters for reinforcing bars <br /> No.25 or smaller, and 2 meters for reinforcing bars No.29 or larger, with the splice located at mid-point; and 2)suitably <br /> identified before shipment with weatherproof markings that do not interfere with the Engineer's tamper-proof markings or <br /> seals. Splices that show signs of tampering will be rejected. <br /> • Shorter length sample splice bars may be furnished if approved in writing by the Engineer. <br /> • The Contractor shall ensure that sample splices are properly secured and transported to the testing laboratory in such <br /> a manner that no alterations to the physical conditions occur during transportation. Sample splices shall be tested in the same <br /> condition as received. No modifications to the sample splices shall be made before testing. <br /> • Each set or sample splice, as defined herein, shall be identified as representing either a prequalification or <br /> production test sample splice. <br /> • For the purpose of production testing, a lot of either service splices or ultimate butt splices is defined as 1) 150,or <br /> fraction thereof,of the same type of mechanical splices used for each bar size and each bar deformation pattern that is used in <br /> the work,or 2) 150,or fraction thereof,of complete joint penetration butt welded splices or resistance butt welded splices for <br /> each bar size used in the work. If different diameters of hoop reinforcement are shown on the plans, separate lots shall be <br /> used for each different hoop diameter. <br /> • Whenever a lot of splices is rejected, the rejected lot and subsequent lots of splices shall not be used in the work <br /> until 1)the QCM performs a complete review of the Contractor's quality control process for these splices,2)a written report <br /> is submitted to the Engineer describing the cause of failure for the splices in this lot and provisions for preventing similar <br /> failures in future lots,and 3)the Engineer has provided the Contractor with written notification that the report is acceptable. <br /> The Engineer shall have 3 working days after receipt of the report to provide notification to the Contractor. In the event the <br /> Engineer fails to provide notification within the time allowed,and if,in the opinion of the Engineer,completion of the work <br /> is delayed or interfered with by reason of the Engineer's delay in providing notification,the Contractor will be compensated <br /> for any resulting loss,and an extension of time will be granted in the same manner as provided for in Section 8-1.09, "Right <br /> of Way Delays." <br /> 52-1.08C(1) Splice Prequalification Report <br /> • Before using any service splices or ultimate butt splices in the work, the Contractor shall submit a Splice <br /> Prequalification Report. The report shall include splice material information,names of the operators who will be performing <br /> the splicing,and descriptions of the positions,locations,equipment,and procedures that will be used in the work. <br /> • The Splice Prequalification Report shall also include certifications from the fabricator for prequalifications of <br /> operators and procedures based on sample tests performed no more than 2 years before submitting the report. Each operator <br /> shall be certified by performing 2 sample splices for each bar size of each splice type that the operator will be performing in <br /> the work. For deformation-dependent types of splice devices, each operator shall be certified by performing 2 additional <br /> samples for each bar size and deformation pattern that will be used in the work. <br /> • Prequalification sample splices shall be tested by an independent qualified testing laboratory and shall conform to <br /> the appropriate production test criteria and slip requirements specified herein. When epoxy-coated reinforcement is required, <br /> resistance butt welded sample splices shall have the weld flash removed by the same procedure as will be used in the work, <br /> before coating and testing. The Splice Prequalification Report shall include the certified test results for all prequalification <br /> sample splices. <br /> • The QCM shall review and approve the Splice Prequalification Report before submitting it to the Engineer for <br /> approval. The Contractor shall allow 2 weeks for the review and approval of a complete report before performing any service <br /> splicing or ultimate butt splicing in the work. In the event the Engineer fails to complete the review within the time allowed, <br /> and in the opinion of the Engineer,completion of the work is delayed or interfered with by reason of the Engineer's delay in <br /> completing the review,the Contractor will be compensated for any resulting loss,and an extension of time will be granted,in <br /> the same manner as provided for in Section 8-1.09,"Right of Way Delays." <br /> 52-1.08C(2) Service Splice Test Criteria <br /> • Service production and quality assurance sample splices shall be tensile tested in conformance with the requirements <br /> in ASTM Designation: A 370 and California Test 670 and shall develop a minimum tensile strength of not less than <br /> 550 MPa. <br /> Contract No. 10-OM7104 <br /> 38 <br />