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4B <br />11 <br />r" <br />STABILIZED SHOULDERS <br />A. Stabilized shoulders shall be constructed on each side of the paved <br />roadway section to the width, depth and slope as shown on the Plans and <br />Typical Sections. The stabilized shoulder material shall have a minimum <br />Limerock Searing Ratio of 40 as determined by the Limerock Bearing <br />Ratio Test. In an area where the bearing ratio is less than 40, stabilizing <br />material approved by the Engineer shall be furnished by the Contractor, <br />spread, and mixed thoroughly throughout the entire depth and width of <br />the stabilizing limits. No specific density will be required and <br />compaction shall be only to the extent directed by the Engineer. <br />6. COMPACTION 'TESTING <br />A. ' In general, Limerock Bearing Ratio tests on the subgrade shall be taken <br />at approximately 300 lineal foot intervals. Exact locations will be <br />designated by the Engineer. <br />B. The maximum dry density of the subgrade material shall be determined by <br />the Modified Proctor Test using the procedure as described by ASTM <br />D1557 or AASHTO-TI80 (Method A). In general, there shall be one <br />Modified Proctor Test per 300 lineal feet at a location which is <br />representative of the type of subgrade material used on the project. <br />Each material which is inherently different in composition from other <br />subgrade material and which is used over a widespread ,area of the <br />project, will necessitate an additional Modified. Proctor Test. <br />