1014 CALIFORNIA ST 2016-01-01 MF Import

. . . the Owner and authorized agents. Make bends and hooks in sccordance with the applicable portfons of the Bu(Iding Code and the Concrete Reinforcing Steel Instituta. C. Placing and Fastening 1. Place all steel reinforcement accurateiy and hold firmly in the position indicated on the drawing during the placing and setting of concrete. Tie bars at all intersecNons, except where spacing is lese than 1 (oot in each direction, then tie altemate intersections. 2. Provide the following minimum concrete covering of refnforcement, unless noted othenvise on the drawings: a. Concrete Below-Ground Deposited Against Forms: 2 Inches. b. Concrete Deposited Against Earth: 3 inches. c. Concrete Elsewhere: As fndicated on the drawfngs or otherwise approved by the Engineer. 3. Maintain the minimum distance from the fortns by means of stays, blocks, ties, hangers, or other approved supports. Blocks for holding roinYorcement irom contact with the forms shall be precast mortar blocka of compressive strength not less than 3,750 psi ot approved shape and dimensions, or approved metal chairs. Metal chairs which are in contact with the exterior suriace of the concrete shall be plastic-coated or galvanized. Separate layera of bara by plastic chairs, by precast mortar blocks of compresaive atrength not less than 3,750 psl, or by other equally suitable devices. The use of pebbles; piecea of broker� stane, brick, and metal pipe; and wooden blocks will not be permitted. The minim�m apacing between bars shall be one bar diameter or 1 inch minimum, but not I�•as than 1 1/3 times the maximum size of coarse aggregate. Place reintorcement, !nspect, and obtain approval of the Engineer before piacing concrete. Concrete placed In violation of this provision may be rejected and remova� required, to be followed by placing af new reinforcing steel and concrete by the Contractor at no additfonal coat to the County. 4. In the event that conduita, piping, inserta, sleeves, or ather itema interfere with placing reinforcement, as indicated on the drewings or as othervvise required, immediately consult the Owner and obtain appraval of new pracedure be%re placing concrete. D. Splicing 1. Fumish all reinforcement in the full lengths indicated on the drawings. Splicing of bars, except when indicated on the drawings, will not be permitted without written approval of the Owner and authorized agent. When approved, stagger splices as far as possible. 2. Un�ess shown othervvise, lap all rei�forcing 38-bar diametera (18 fnches mfnimum). April 27, 2001 03200- 3 . z-5