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LABORATORY TEST REPORT <br /> Ve TOST POTENTIAL ALKALI-SILICA REACTIVITY <br /> OF COMBINATIONS OF CEMENTITIOLIS MATERIALS AND AGGREGATE <br /> 627 Sheridan Boulevard•Lakewood,CO 80214 (ACCELERATED MORTAR-BAR METHOD) <br /> 303.975.9959•office@westest.net ASTM C1567 <br /> CLIENT: BURNCO Colorado REPORT DATE: November 26, 2019 <br /> PROJECT NO.: 673819 SAMPLE DATE: October 3, 2019 <br /> SAMPLE ID: 6738L <br /> AGGREGATE: <br /> SOURCE: Church McKay and Lupton Meadows Pits <br /> SIZE: ASTM &AASHTO Fine Aggregate, Lupton Meadows Pit <br /> SIZE: ASTM &AASHTO Coarse Aggregate, Church McKay Pit <br /> COMMENTS: Aggregates graded as per Section 8.2, Table 1 with 62% Coarse Aggregate and 38% Fine <br /> Aggregate. <br /> CEMENT: <br /> SOURCE: Mountain <br /> TYPE: I/II/V <br /> AUTOCLAVE EXPANSION: -0.03% <br /> ALKALIS CONTENT: 0.56% <br /> COMMENTS: Cement data provided by Mountain Cement <br /> POZZOLANS: <br /> SOURCE: Headwaters Prairie State <br /> CLASS: F Fly Ash <br /> RELPACEMENT: 20% <br /> MIX WATER: <br /> W/C RATIO: 0.47 <br /> ADMIXTURES: None <br /> EFFECTIVE GAUGE LENGTH =250 mm <br /> 10/30/19 10/31/19 11/4/19 11/7/19 11/11/19 11/14/19 <br /> Initial Zero 4 Days 7 Days 11 Days 14 Days <br /> Specimen Comparator Comparator Comparator Length Comparator Length Comparator Length Comparator Length <br /> Reading Reading Reading Change Reading Change Reading Change Reading Change <br /> A 0.190 0.348 0.386 0.02% 0.410 0.02% 0.462 0.05% 0.506 0.06% <br /> B 2.496 2.660 2.696 0.01% 2.720 0.02% 2.760 0.04% 2.806 0.06% <br /> C -0.034 0.116 0.160 0.02% 0.180 0.03% 0.218 0.04% 0.264 0.06% <br /> AVERAGE 1.041 1,081 0.020/6 1.103 0.02% 1.147 0.04% 1.192 0.06% <br /> MORTAR BAR EXPANSION <br /> w - - - <br /> 0 <br /> Q 0.20% - - <br /> x <br /> x <br /> t~9 0.10% F - <br /> z <br /> W <br /> J - - - -- -- <br /> W <br /> (9 0,00% <br /> �a 0 2 4 6 8 10 12 14 <br /> W <br /> a DAYS IN SOLUTION <br /> FIGURE 1 <br />