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<br />density acceptable at any location along the traveled roadway shall be ninety-eight (98) percent of <br />such maximum density. The minimum percent of carbonates of calcium and magnesium in the <br />Limerock Material will be fifty (50). <br /> <br />After spreading of the first lift is completed, the entire surface shall be scarified and shaped so as to <br />produce the required grade and cross section after compaction. Prior to placing the second lift, the <br />first course shall be cleaned of all foreign material and blade and brought to a surface cross section <br />approximately parallel to that of the proposed finished base. Prior to spreading of any material for <br />the upper course, the density tests for the lower course shall be made and the Engineer shall have <br />determined that the required compaction has been obtained. <br /> <br />After the spreading of the material for the second course is completed, its surface shall be finished <br />and shaped so as to produce the designed grade and cross section after compaction, and free of scabs <br />and lamination. <br /> <br />a. At the option of the Engineer, unless the use of forms is specifically called for in the Plans, the <br />base may be constructed six (6) inches wider in lieu of using forms. These extra widths will not be <br />measured for payment and shall be provided at no additional expense to the City. <br /> <br />b. Upon the Engineer's approval of the Limerock Base, it shall be primed with a prime coat having a <br />minimum curing period of forty eight (48)-hours. <br /> <br />c. Under no circumstances will the Engineer allow the prepared base to remain un-surfaced pending <br />completion of other Work remaining on the Project. <br /> <br />d. The quantity of Limerock Base, determined as provided in this Section, shall be paid for at the <br />Contract Unit Price Bid as indicated in the Bid Form ofthe Proposal. Such price and payment shall <br />be full compensation for all the work specified for the complete construction of the base course as <br />specified herein, including the necessary preparation and compaction of the sub-grade, correcting all <br />defective surfaces of the sub-grade and/or deficient thickness and priming of the base course. <br /> <br />Note: The areas of base course to be measured for payment shall include the areas of extra base <br />required at various intersections. The cost of replacing base materials removed only for the <br />construction of underground items shall be included in the Bid Price for the various items. <br /> <br />26. Prime and Tack Coats for Base Courses (Section 300) <br /> <br />Section 300-7.1 - GENERAL: This article is expanded to include the following: <br /> <br />A Prime Coat is required for all Limerock Base Construction and the cost will be included in the Unit <br />Price Bid for Limerock Base per cubic yard as noted in the Bid Form of the Proposal. No separate <br />payment shall be made for the Prime Coat or its application. <br /> <br />27. Bituminous Material- Payment Adjustment (Item 300-1-999) <br /> <br />Section 9-2.1 -ITEMS INCLUDED IN PAYMENT: This sub-article is expanded as follows: <br /> <br />The bid unit price for bituminous materials (asphalt concrete, prime and tack coat) will be adjusted to <br />reflect changes, both increase and decrease, in the asphalt price index, based on the average of the <br />current bituminous materials prices at Port Everglades, from that in effect during the month 111 which <br /> <br />Oct. 2007, Special Provisions <br /> <br />Page 9 of 15 <br />