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pacted to a;. -density of not less than 95% of the maximum density as determined by the A.A.S.H. 0. Method T99 at optimum moisture, or other approved methods. (c.2) The sub -grade width shall be two feet wider than the base course with the ex- ception that the sub -grade width shall be such as to include the curb and gutter sections when, they are to be constructed. Approval of sub -grade shall be obtained before the base course is begun. d. Base Course (d.l) Lime Rock Base. The material used shall conform with the requirements specified in a Florida 1 i State Road Department standard specifications for Road and Bridge construction under Section 503 approved and adopted April 1, 1954, subject to supplements and new publications as issued approved and adopted by the State Road Department. All equipment necessary for the proper construction of this work shall be on t the project, in first class working condition, and shall have been approved by the engineerI before construction is started. No forms shall be required unless specified. The lime rock shall be transported and dumped by approved methods. ;i The lime rock shall be spread uniformly with equipment approved by the enginee. d All segregated areas of lime or coarse rock shall be removed and replaced with well -graded rock. After spreading is completed the entire surface shall be scarified and shaped so'.as to produce the exact grade and cross-section after compaction. When the material does not have, the proper moisture content to insure the required density, wetting or drying will be re- ;,i quired. As soon as proper conditions of moisture are attained the material shall be compacted!] to the satisfaction of the engineer and/or to an average density of at least 95% of the maximum density obtainable A.A.S.H.O. Method T99, at optimum moisture, or other approved methods. Unless otherwise directed by the engineer, the surface shall be 11hard-planed"r! J�1 with a blade grader immediately prior to the application of the prime coat, to remove the thin glazed or cemented surface of the base. If at any time the sub -grade material should become mixed with the base -course material, the contractor shall, without additional compensation, dig out and remove the mixture, reshape and compact the sub -grade and replace.the materials removed with clean base material, which shall be shaped and compacted as specified above. a �i If cracks or checks appear in the base, either before or after priming, which, in the opinion p of the engineer, would impair the structural efficiency of the base course, the contractor shall remove such cracks or checks by rescarifying, reshaping, adding base material where necessary and recompacting. Thickness determination shall be made as directed by the engineer. 0.2) Soil Cement Base The materials used shall conform with the requirements specified in the Florida State Road Department Standard Specifications for --.Road and Bridge Construction. That is, pori- land or -land cement, Type 1, water which shall be clean and practically free of oil, acid, alkali, 0 C� 1 1 1 0