Permits & Development - Encroachment(EP)/Driveway(DW) Permits - 2007_EP-07-301 thru EP-07-400_ - EP-07-352

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The second paragraph in Section 51-1.18C, "Class 2 Surface Finish (Gun Finish)," of the Standard Specifications is amended to read: • When Class 2 surface finish(gun finish)is specified,ordinary surface finish shall first be completed. The concrete surfaces shall then be abrasive blasted to a rough texture and thoroughly washed down with water. While the washed surfaces are damp,but not wet,a finish coating of machine applied mortar,approximately 6 mm thick,shall be applied in not less than 2 passes. The coating shall be pneumatically applied and shall consist of either(1)sand,cementitious material,and water mechanically mixed prior to its introduction to the nozzle or (2)premixed sand and cementitious material to which water is added prior to its expulsion from the nozzle. The use of admixtures shall be subject to the approval of the Engineer as provided in Section 90, "Portland Cement Concrete." Unless otherwise specified, supplementary cementitious materials will not be required. The proportion of cementitious material to sand shall be not less than one to 4,unless otherwise directed by the Engineer. Sand shall be of a grading suitable for the purpose intended. The machines shall be operated and the coating shall be applied in conformance with standard practice. The coating shall be firmly bonded to the concrete surfaces on which it is applied. The fifth paragraph in Section 51-1.18C, "Class 2 Surface Finish (Gun Finish)," of the Standard Specifications is amended to read: • When surfaces to be finished are in pedestrian undercrossings, the sand shall be silica sand and the cementitious material shall be standard white portland cement. The fourteenth paragraph in Section 51-1.23, "Payment," of the Standard Specifications is amended by deleting "and injecting epoxy in cracks". SECTION 52: REINFORCEMENT Issue Date: June 30,2006 The first paragraph in Section 52-1.02A,'Bar Reinforcement,"of the Standard Specifications is amended to read: • Reinforcing bars shall be low-alloy steel deformed bars conforming to the requirements in ASTM Designation: A 706/A 706M, except that deformed or plain billet-steel bars conforming to the requirements in ASTM Designation: A 615/A 615M,Grade 280 or 420,may be used as reinforcement in the following 5 categories: A. Slope and channel paving, B. Minor structures, C. Sign and signal foundations(pile and spread footing types), D. Roadside rest facilities,and E. Concrete barrier Type 50 and Type 60 series and temporary railing. The third paragraph in Section 52-1.04,"Inspection,"of the Standard Specifications is amended to read: • A Certificate of Compliance conforming to the provisions in Section 6-1.07,"Certificates of Compliance," shall also be furnished for each shipment of epoxy-coated bar reinforcement or wire reinforcement certifying that the coated reinforcement conforms to the requirements in ASTM Designation: A 775/A 775M or A 884/A 884M respectively, and the provisions in Section 52-1.02B, 'Epoxy-coated Reinforcement." The Certificate of Compliance shall include all of the certifications specified in ASTM Designation: A 775/A 775M or A 884/A 884M respectively. The third paragraph of Section 52-1.06,'Bending,"of the Standard Specifications is amended to read: • Hooks and bends shall conform to the provisions of the Building Code Requirements for Structural Concrete of the American Concrete Institute. Section 52-1.07"Placing,"of the Standard Specifications is amended by deleting item C of the third paragraph. The eleventh paragraph in Section 52-1.07,"Placing,"of the Standard Specifications is amended to read: Contract No. 1 O-OM7104 34