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n Client: Asphalt Paving Co. <br /> Project No.: 18-3046 <br /> ENGINEERING <br /> Ralston Quarry Slope Stability <br /> Direct Shear <br /> 1s �... <br /> I <br /> I <br /> i <br /> N <br /> a 10 ---- --- - <br /> in <br /> v <br /> L <br /> 5 <br /> ♦Peak <br /> 0 <br /> 0 5 10 15 20 25 30 <br /> Normal Stress(psi) <br /> Tested By Shear Date Device Prep. Specific Gravity <br /> DS/EK 9/17/2018 Geotest S2215A Liner 2.65 Estimated <br /> Point Normal Stress(psi) 5.0 10.0 20.0 <br /> Point Properties Initial I Pre-shear Initial Pre-shear Initial Pre-shear <br /> Diameter(in) 2.47 2.47 2.47 <br /> Height(in) 1.00 0.95 1.00 0.91 1.00 0.87 <br /> Wet Density(pcf) 118.5 126.9 118.5 130.8 118.5 132.7 <br /> Moisture(%) 20.2 22.2 18.6 18.8 20.7 17.2 <br /> Dry Density(pcf) 98.7 103.8 100.0 110.2 98.2 113.2 <br /> Void Ratio 0.672 0.588 0.650 0.497 0.679 0.457 <br /> Saturation(%) 79.5 1 100.0 75.8 100.0 80.6 100.0 <br /> Shear Rate(in/min) 0.0025 0.0025 0.0025 <br /> Point Results Peak Peak Peak <br /> Shear Stress(psi) 6.3 9.1 12.8 <br /> Horizontal Strain(%) 4.9 6.1 7.3 <br /> Test Results Peak <br /> Friction Angle(deg) 22.8 <br /> Cohesion(psi) 4.5 <br /> Sample: Lower Slope Classification: CL, A-7-6(22) Liquid Limit: 48 <br /> Description: Clay with Sand <No.200(%): 83.0 Plasticity Index: 25 <br /> Colluvium Figure: 16 <br /> Results apply only to the specific items and locations referenced and at the time of testing.Testing was performed in general accordance with ASTM <br /> D3080/AASHTO T236.Results should be evaluated and applied to the project by qualified personnel. This report should not be reproduced,except in <br /> full,without the written permission of GROUND Engineering Consultants,Inc. <br /> www.groundeng.com <br /> Englewood,Commerce City,Loveland,Granby,Gypsum <br />