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SUBARTICLE 400 - 7 . 13 . 2 (page 389) is deleted and the following substituted : <br /> 4004. 13 . 2 Screed Demonstration : Subsequent to the placement of all <br /> reinforcing steel and prior to placing any slab or deck concrete , demonstrate that the proposed <br /> equipment and methods can finish the concrete to the specified grades while maintaining the <br /> specified cover over the reinforcement. Provide the demonstration over the entire length and <br /> width of the spans to be placed. <br /> SUBSECTION 400- 11 . 3 (Page 394) is deleted. <br /> SUBSECTION 400- 11 . 4 (Page 394) is the deleted and the following substituted : <br /> 40041 .3 Bearing Pads : Use bearing pads for seating bridge shoes , ends of beams, and <br /> slabs of the types specified or required in the plans . <br /> Fumish and install Composite Neoprene Pads as detailed in the plans . Place <br /> neoprene pads , where specified or required, directly on masonry surfaces finished in accordance <br /> with the requirements of this Article . Ensure that pads , bearing areas of bridge seats , and metal <br /> bearing plates are thoroughly cleaned and free from oil, grease, and other foreign materials . <br /> Exercise care in fabrication of related metal parts to avoid producing conditions <br /> detrimental to the performance of the pads , such as uneven bearing, excessive bulging, etc . <br /> ARTICLE 400 - 14 (Page 394 - 395 ) is deleted and the following substituted : <br /> 400- 14 Removal of Forms . <br /> Use the table below as the criterion for minimum time or compressive strength required <br /> before removal of forms or supports . <br /> When using the time period criterion , include in the time period all days except days in <br /> which the temperature falls below 40°F . <br /> Use the specified 28 -day minimum compressive strength value as stated in 346 - 3 . 1 for <br /> each Class of Concrete utilized. <br /> Minimum Time for Form Minimum (%) of 28 -day <br /> Location of Concrete Placement Removal for any Strength Compressive Strength for <br /> Concrete * Form Removal <br /> 1 ) Deck slabs , top slabs of culverts and bottom of caps , forms under sidewalks , and safety curb <br /> overhangs extending more than 2 feet <br /> (a) Class II (Bridge Deck) 7 days * * 75 * * <br /> (b) Class II (Other than Bridge Deck) 7 days 75 <br /> (c) Class III 7 days 70 <br /> (d) Class IV 7 days 60 <br /> (e) Class V 7 days 50 <br /> - 136 - <br /> FPID ( S ) : 423186 - 1 - 58 - 01 <br /> k <br /> sN <br /> ,, . <br />