SANTA ANA UNIFIED SCHOOL DISTRICT (SAUSD) (6)

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CITY OF SANTA ANA SPECIFICATIONS PROJECT NO.: 25-6030 TRAFFIC SIGNAL INSTALLATION AT SEGERSTROM AVENUE AND ROSEWOOD AVENUE Sidewalks in the parkway designated for replacement shall be replaced at the same width as existing unless otherwise specified and shall conform to City of Santa Ana Standard Plan No. 1104. Sidewalk replacement shall include removing all existing materials below existing sidewalk to make necessary to construct new sidewalk. Curb ramps shall conform to City of Santa Ana Standard Plan No. 1122 unless otherwise specified. All new concrete shall be placed within five (5) working days after removal of existing concrete. All concrete work shall be finished in texture, scoring, banding in generally the same manner as the adjacent existing improvements, unless specified. 1.14 PORTLAND CEMENT CONCRETE(PCC) GRINDING Grinding existing PCC curb and sidewalk shall be done as shown on the Plans. Grinding shall be done with a power-driven machine that will leave a finished surface comparable to the adjacent sidewalk surface. Excessively smooth surfaces which will become slippery when wet are not acceptable. Unless shown otherwise on the plans, the grinding width shall be assumed to be one-foot wide. Limits of PCC Grinding shall be measured along the uplifted edge. 1.15 PORTLAND CEMENT CONCRETE(PCC)PAVEMENT CONSTRUCTION PCC Pavement and bus pads shall conform to Section 302-6 of the Standard Specifications and these Special Provisions. PCC used for street pavement and bus pad construction shall be minimum class 560-A- 3250. In addition to these minimum requirements,the concrete shall possess the following characteristics: • Flexural strength at 28 days: 550 p.s.i. min. • Flexural strength at 7 days: 430 p.s.i. min. • Compressive strength at 7 days: 2500 p.s.i. min. All cement to be used or furnished on this Project shall be Type II low alkaline Portland Cement conforming to ASTM C150. 36