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<br />,1 <br /> <br />LJ <br /> <br />n <br /> <br />L.J <br /> <br />,.., <br /> <br />L.J <br /> <br />n <br /> <br />LJ <br /> <br />,.., <br /> <br />LJ <br /> <br />" <br /> <br />L..J <br /> <br />" <br /> <br />L..J <br /> <br />" <br /> <br />LJ <br /> <br />" <br /> <br />L.J <br /> <br />ri <br /> <br />LJ <br /> <br />'" <br /> <br />L.J <br /> <br />r, <br /> <br />L.J <br /> <br />" <br /> <br />L.J <br /> <br />(, <br /> <br />LJ <br /> <br />"I <br /> <br />LJ <br /> <br />" <br /> <br />LJ <br /> <br />" <br /> <br />LJ <br /> <br />" <br /> <br />L.J <br /> <br />'I <br /> <br />L.J <br /> <br />06/05 <br /> <br />C. Aggregates: <br /> <br />D. Water: <br /> <br />1. <br /> <br />2. <br /> <br />3. <br /> <br />4. <br /> <br />1. <br /> <br />2. <br /> <br />Fine aggregate shall consist of washing inert sand conforming to the requirements <br />of ASTM Specification C-33, and the following detailed requirements: <br /> <br />Sieve <br /> <br />% Passing <br /> <br />No.4 <br />16 <br />50 <br />100 <br /> <br />95-100% <br />60-75 <br />13-30 <br />3-8 <br /> <br />Fineness Modulus <br />Organics <br /> <br />2.4-2.6 <br />Organic Plate 2, per ASTM <br />C-40 <br />2.0% maximum <br />95% minimum as per ASTM <br />C87, Section 10 <br />8% maximum loss, using <br />magnesium sulfate, <br />subjected to 5 cycles <br /> <br />Silt <br />Mortar Strength <br /> <br />Soundness <br /> <br />Coarse aggregate shall consist of well-graded crushed rock or washing gravel <br />conforming to the requirements of ASTM Specification C-33 and the following <br />detailed requirements: <br /> <br />Organics <br /> <br />Organic Plate I, per ASTM <br />C-40 <br />1.0% maximum <br />8% maximum loss, using <br />magnesium sulfate, <br />subjected to 5 cycles <br /> <br />Silt <br />Soundness <br /> <br />The following designated sizes* of aggregate shall be the maximum employed in <br />concrete: <br /> <br />2 inch for plain concrete <br />I inch for reinforced sections 10 inch and over in thickness <br />3/4 inch for reinforced sections less than 10 inch in thickness <br /> <br />*Note: The "Designated Size" and the corresponding gradations shown represent <br />the end or combined gradation of the coarse aggregate to be used in the final <br />concrete. <br /> <br />Water shall be clean and free from injurious amounts of oils, acid, alkali, organic <br />matter or other deleterious substances. <br /> <br />When subjected to the mortar strength test described in ASTM C87, the 28 day <br />strength of mortar specimens made with the water under examination and normal <br />portland cement shall be at least 100 per cent of the strength of similar specimens <br />made with distilled water. <br /> <br />3. Potable tap water will normally fulfill the above requirements. <br /> <br />03300-5 <br /> <br />03-4138.8 <br />