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n <br />11 <br />(Type III) free from injurious water soluble salts or alkalies. High early <br />strength cement may only be used, with written approval of the <br />Engineer. Air entraining cements may be used with written approval <br />of the Engineer. Cement brands shall be subject to approval. <br />Organics Organic Plate 1, per ASTM <br />C -40 <br />Silt 1.0% maximum <br />Soundness 8% maximum loss, using <br />magnesium sulfate, <br />subjected to 5 cycles <br />3. The following designated sizes* of aggregate shall be the <br />maximum employed in concrete: <br />2 inch for plain concrete <br />1 inch for reinforced sections 10 inch and over in thickness <br />3/4 inch for reinforced sections less than 10 inches in thickness <br />I 4. *Note: The "Designated Size" and the corresponding <br />gradations shown represent the end or combined gradation of <br />the coarse aggregate to be used in the final concrete. <br />09/03 03300 -6 03 -3 l 48.A -R <br />C. Aggregates: <br />1. Fine aggregate shall consist of washing inert sand conforming <br />to the requirements of ASTM Specification C -33, and the <br />following detailed requirements: <br />Sieve % Passing <br />No. 4 95 -100% <br />16 60-75 <br />50 13 -30 <br />100 3 -8 <br />Fineness Modulus 2.4 -2.6 <br />Organics Organic Plate 2, per ASTM <br />C -40 <br />Silt 2.0% maximum <br />Mortar Strength 95% minimum as per ASTM <br />C87, Section 10 <br />iSoundness <br />8% maximum loss, using <br />magnesium sulfate, <br />i <br />subjected to 5 cycles <br />2. Coarse aggregate shall consist of well - graded crushed rock or <br />washing gravel conforming to the requirements of ASTM <br />' <br />Specification C -33 and the following detailed requirements: <br />Organics Organic Plate 1, per ASTM <br />C -40 <br />Silt 1.0% maximum <br />Soundness 8% maximum loss, using <br />magnesium sulfate, <br />subjected to 5 cycles <br />3. The following designated sizes* of aggregate shall be the <br />maximum employed in concrete: <br />2 inch for plain concrete <br />1 inch for reinforced sections 10 inch and over in thickness <br />3/4 inch for reinforced sections less than 10 inches in thickness <br />I 4. *Note: The "Designated Size" and the corresponding <br />gradations shown represent the end or combined gradation of <br />the coarse aggregate to be used in the final concrete. <br />09/03 03300 -6 03 -3 l 48.A -R <br />