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t. ,./ <br /> Escalon Subdivision <br /> Page 10 <br /> — May 30,2000 <br /> (3) Placing and Compacting <br /> Fill materials shall be spread in layers and shall have a uniform moisture content that <br /> will provide the specified dry density after compaction. If necessary to obtain <br /> — uniform distribution ofmoisture,water shall be added to each layer by sprinkling and <br /> the soil disked, harrowed, or otherwise manipulated after the water is added. The <br /> layers of the fill material shall not exceed 8 inches and each layer shall be compacted <br /> ` with suitable compaction equipment to provide the specified dry densities. <br /> (4) Required Densities <br /> The dry density of the compacted earth fill shall be at least 90 percent of the <br /> r, maximum dry density obtainable in the ASTM D1557 Compaction Test. The value <br /> of the optimum moisture content and maximum dry density will be determined by <br /> the engineer and this information supplied to the contractor. <br /> — <br /> (5) Seasonal Limits <br /> No fill shall be placed during weather conditions which will alter the moisture <br /> content of the fill materials sufficiently to make adequate compaction impossible. <br /> After placing operations have been stopped because of adverse weather conditions, <br /> — no additional fill material shall be placed until the last layer compacted has been <br /> checked and found to be compacted to the specified densities. <br /> (6) Control of Compaction <br /> The density of the upper 6 inches of subgrade and of each layer of fill shall be <br /> checked by the engineer after each layer has been compacted, Field density test shall <br /> be used to check the compaction of the fill materials. Sufficient tests shall be made <br /> on each layer by the engineer to assure adequate compaction throughout the entire <br /> area. If the dry densities are not satisfactory, the contractor will be required to <br /> increase the weight of the roller,the number ofpasses ofthe roller,or manipulate the <br /> moisture content as required to produce the specified densities. <br /> Soo <br /> H <br /> f! _ <br /> D <br /> Q 4 <br /> e1 oc G`D <br /> M• <br />