Laserfiche WebLink
Geotechnical Engineering Report 13 January 8,2021 <br /> Glint Car Wash and Sonic Everett,Everett,Washington RGI Project No.2020-643-1 <br /> Soil Material: Soil material shall consist of native subgrade material, of selected <br /> excavation material, or of a combination of these materials. The soil shall not contain <br /> roots, topsoil, or any material deleterious to its reaction with cement. <br /> Equipment: Mixing shall be accomplished by equipment that will produce soil-cement <br /> mixing meeting the requirements for soil pulverization, cement and water application, <br /> mixing, transporting, placing, compacting, finishing, and curing as recommended herein. <br /> Agricultural disks or motor graders shall not be acceptable mixing equipment. The <br /> equipment shall have the ability to supply metered water and have the ability to adjust <br /> the supply of water to the material during the mixing procedure. While moving, the water <br /> supply shall deliver water evenly across the full width of the machine, if water is <br /> necessary to be added. If, in the opinion of the Engineer, the equipment is not equal to <br /> the above, the Contractor shall remove said equipment from the jobsite and replace it <br /> with equipment meeting the requirements above. <br /> Cement Spreading and Mixing: Mixing of the soil material, cement, and water shall be <br /> accomplished by the mixed-in-place method. Cement shall be 3 to 6 percent by weight <br /> and may vary depending on the moisture content of the soil. <br /> No cement shall be spread more than 500 feet beyond the mixing operation, unless <br /> approved by the Engineer. The mixing operation shall not exceed more than 500 feet <br /> beyond the grading, shaping, and compaction operation. The operation of cement <br /> application, mixing, spreading, compacting and finishing shall be continuous and <br /> completed within 4 hours from the start of mixing. Any soil-cement mixture that has not <br /> been compacted shall not be left undisturbed for longer than 30 minutes. <br /> The operations of cement spreading, water application, and mixing shall be continuous <br /> and completed in daylight. No cement spreading shall be allowed during high winds. No <br /> cement shall be spread or soil-cement mixture mixed when the soil or subgrade is frozen. <br /> Cement Spreading and Mixing Methods: Mixing shall be continued until the mixture is <br /> uniform in color and at the required moisture content throughout. Operations of cement <br /> spreading, water application, mixing, and grading mixed material shall result in a uniform <br /> soil, cement, and water mixture for the full depth and width. <br /> The cement shall be uniformly distributed and mixed with the pulverized material and <br /> any existing underlying material or imported material as specified. The mixing operation <br /> may be accomplished by using either the same machine used for the pulverizing <br /> operation or a separate machine designed for in-place continuous mixing as approved by <br /> the Engineer. Regardless of which method is used, a control system capable of metering <br /> or measuring the cement application rate to an accuracy of plus/minus one pound per <br /> square yard shall be used.The equipment used to spread the cement shall have weighing <br /> Corporate Office <br /> 17522 Bothell Way Northeast <br /> Bothell,Washington 98011 <br /> Phone 425.415.0551• Fax 425.415.0311 <br /> 1414 .riley-group.com <br />