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MIR• <br /> STONE ! A <br /> WALL SYSTEM <br /> 815 NE 172nd Ave.,Vancouver,WA.98684 <br /> 360-694-0141 Office*800-377-3877 Toll Free*360-694-0281 Fax <br /> www.ultrablock.com <br /> STONETERRA MATERIAL SPECIFICATIONS <br /> Concrete units are manufactured with specifications based upon the project requirements. <br /> The engineer/owner shall determine the concrete strength, air entrainment and other <br /> specific mix design details. <br /> Standard characteristics include, but are not limited to: <br /> Aggregate used in block meets ASTM C-33 standard. <br /> Cement used in blocks are ASTM C-150 types I, II, I-II. <br /> Fly ash used in the concrete mix is a Pozzolanic Class F. <br /> Admixtures, when used in the concrete, are consistent with ASTM C-494 and ASTM C260. <br /> In certain climate regions return/surplus concrete (post consumer waste) may be <br /> considered; in these cases the strength and air entrainment will vary. Use in these areas <br /> have shown successful long term performance offering cost and environmental benefits. A <br /> minimum strength concrete can be verified by performing an ASTM C805 (Schmidt Hammer <br /> Test). <br /> Refer to full StoneTerra Specifications Guide for additional details. <br />