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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 /> 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 <br /> Plans. <br /> Concrete pavement for bus pads shall be installed monolithic with the PCC curb and gutter. <br /> A 12-inch thick PCC curb and gutter shall be installed both preceding and following the <br /> proposed bus pad. <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 pavement surface shall be <br /> textured by stiff brooming that will produce scoring perpendicular to the centerline <br /> of the street, performed at a time and in a manner to produce a hardened surface <br /> have a coefficient of friction of not less than 0.38 as determined by California Test <br /> 342. Curing to be applied immediately following brooming. <br /> Joints in the concrete pavement shall be constructed as shown on the Jointing Plan (if <br /> provided) and described in Section 302-6.5 of the Standard Specifications except as <br /> modified herein. Sawing of the joints shall begin as soon as the concrete has hardened <br /> sufficiently to permit sawing without excessive raveling, usually 4 to 24 hours per <br /> engineer's directions. If necessary,the sawing operations shall be carried on both day and <br /> night, regardless of weather conditions. <br /> For construction of PCC alleys, transverse weakened plane joints shall be constructed at <br /> 15 foot intervals and at power poles, manholes, meter boxes, and utility vaults. One <br /> longitudinal weakened plane joint shall be placed offset the centerline. Weakened plane <br /> joints shall be saw cut to a depth of/ of the pavement thickness and '/"wide. <br /> All joints shall be sawed before uncontrolled shrinkage cracking occurs. A standby saw <br /> shall be available in the event of breakdown. All weakened plane joints shall be sawcut to <br /> a depth equal to one fourth of the pavement thickness. Longitudinal joint spacing shall be <br /> at ten (10) feet minimum and fifteen(15) feet maximum on either side of centerline joint. <br /> Transverse joint spacing shall be at ten (10) feet minimum and fifteen(15) feet maximum <br /> 37 <br />