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CITY OF SANTA ANA <br />SPECIFICATIONS <br />PROJECT NO.: 25-6030 <br />TRAFFIC SIGNAL INSTALLATION AT SEGERSTROM AVENUE AND ROSEWOOD <br />AVENUE <br />Construction and installation of dowels shall be per City of Santa Ana Standard Plan No. <br />1428A, the construction plans, and these specifications. <br />PCC pavement replacement and bus pad replacement shall conform to Sections, 400, 200, <br />201, and 302 of the Standard Specifications and these Special Provisions. <br />PCC used for street pavement and bus pad construction shall be minimum class 560-A- <br />3250. In addition to these minimum requirements, the concrete shall possess the following <br />characteristics: <br />Flexural strength at 28 days: 550 p.s.i. min. <br />Flexural strength at 7 days: 430 p.s.i. min. <br />Compressive strength at 7 days: 2500 p.s.i. min. <br />All cement to be used or furnished on this Project shall be Type II low alkaline Portland <br />cement conforming to ASTM C150. <br />Prior to the start of construction, the Contractor shall furnish to the Engineer laboratory <br />test data for the particular mix design he will use. The data will include the following: <br />A. A detailed concrete mix design including the type and amount of cement used; <br />complete gradation and source of the aggregate used; the amount of water used; and <br />any proposed admixtures. <br />B. Flexural strength test data for the same batch of concrete used in A above showing the <br />compressive strength of the concrete at 3, 7, and 28 days. <br />Section 302-6.4.2 entitled "Tamping" of the Standard Specifications shall be modified by <br />adding the following: <br />The outer edge of the gutter shall not be used as a side form for the mechanical <br />tamper except where existing gutter is to remain as shown on the construction plans. <br />Concrete pavement for bus pads shall be installed monolithic with the curb and <br />gutter and shall be accomplished in accordance with City of Santa Ana Standard <br />Plan No. 1108. <br />Section 302-6.4.4 entitled "Final Finishing" of the Standard Specifications shall be <br />modified as follows: <br />Delete all reference to wetted burlap. Final finish of the surface shall be textured <br />by stiff broom process that will produce scoring perpendicular to the centerline of <br />the street, performed at a time and in a manner to produce a hardened surface have <br />a coefficient of friction of not less than 0.38 as determined by California Test 342. <br />Curing to be applied immediately following broom process. <br />.o <br />