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Transit Mix Concrete Co. Materials Laboratory <br /> 444 East Castilla Avenue 2596 Ilxy 96 Fast <br /> Colorado Springs,Colorado 80903 Pueblo,Colorado 81002 <br /> Ph (719)475-0700 Fax(719)475-0216 Ph.(719)543.7899 Fax(719)583-0345 <br /> February 15,2016 <br /> RE: Class I Structure Backfill/Fine Fill <br /> Daniels Sand Company <br /> 3710 Bradley Road <br /> Colorado Springs,CO 80916 <br /> Gentlemen: <br /> This letter presents the results of physical properties and deleterious substances tests performed on a <br /> Class 1 Structural Backfill that was sampled on January 13, 2016.Please be advised this is a raw bank <br /> product and variations may occur in test results.Testing was conducted to evaluate the suitability of <br /> the material for use as"Select Filr,for the City of Colorado Springs,CO. <br /> The results are as follows: <br /> Test Procedure Test Description Test Results Specifications <br /> ASTM C 117 -200 Wash 15.1% N/A <br /> ASTM C 136 Gradation Satisfactory N/A <br /> ASTM D 4318 Liquid Limit No Value N/A <br /> ASTM D 4318 Plastic Index Non-Plastic N/A <br /> ASTM D 1557 Moisture-Density Relationship(Modified) 128.9 pcf @ 8.9% N/A <br /> ASTM D 698 Moisture-Density Relationship(Standard) 122.2 pcf @ 9.4% N/A <br /> ASTM D 2844 Resistance R-Value/Expansion Pressure Please see Table <br /> CP-L 2103 Water Soluble Sulfate Please see Table <br /> More detailed test results are indicated on the attached tables.ACI Certified technicians <br /> performed all tests in accordance to procedures prescribed by the American Society for Testing <br /> and Materials(ASTM)and Colorado Procedures. <br /> If you have any questions feel free to contact me at your convenience. <br /> Respectfully Submitted, <br /> Robert L.Montoya, MEET <br /> NICET Technologist #1 Ol <br /> 0 <br /> Ppo0 t1g6, <br /> 0 <br /> Cj o <br /> 80 <br /> 0 ��� •�� <br /> `S�D14 L E� <br />