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<br /> 106 <br /> RAMON LUCIO, RIO VISTA, RIO VISTA ANNEX, AND BICENTENNIAL <br /> PARKS RECREATION DEVELOPMENT <br /> TECHNICAL SPECIFICATION 5 <br /> CONCRETE SLABS, CURB AND GUTTER, AND MISCELLANEOUS CONCRETE <br /> in the forms, upon prewetted and compacted select base material, <br /> to the shape specified. <br /> (a) Concrete shall be dry enough to permit construction <br /> without the use of face forms for the curb section; it shall not <br /> be so dry but what adequate tamping and spading will insure <br /> adequate compaction and surfaces free from honeycomb. <br /> (b) The surface shall be shaped to the required section, <br /> finished with a wood float or steel trowel, and brushed to produce <br /> a uniform surface of slightly roughened texture. The exposed edge <br /> of the gutter at the front form, and the exposed edge of the curb <br /> at the back form, shall be edged with an edging tool having a <br /> radius of approximately 1/8 inch. <br /> (C) As the Contractor may elect, shaping may be done by <br /> a steel screed, shaped to exact curb and gutter section, riding <br /> upon the tops of front and back forms, or by strike off with a <br /> straight edge riding up exactly shaped metal templates. The <br /> Contractor shall be responsible for construction within the <br /> tolerances allowed by this section. The shaping operation shall <br /> be repeated as often as necessary to attain the required results. <br /> (d) If templates are used to control shape, they shall <br /> be of metal securely fastened in position at intervals not <br /> exceeding ten (10) feet. Templates shall be normal to the grade <br /> of the gutter and to the centerline of the roadway. <br /> (e) Curb and Gutter shall be one-course, monolithic, <br /> between expansion joints. <br /> (7) Joints: <br /> (a) Preaolded expansion joint material, as specified <br /> above, shall be placed between curb and any concrete construction <br /> that otherwise would abut upon it. Joint material shall be <br /> one-half (1/2) inch thick, with a width sufficient to obtain <br /> complete separation. <br /> (b) Premolded expansion joints of one-half (1/2) inch <br /> shall be constructed at the ends of curb and gutter, at the points <br /> of curvature of returns. Intermediate expansion joints shall be <br /> constructed so that the maximum distance between expansion joints <br /> is thirty (30') feet. The joint material shall extend entirely <br /> through the curb and gutter, and before the joint can be considered <br /> 5-5 <br />