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� 1 9-03.12(1)B Class B <br /> 2 Gravel backfill for foundations, Class B, sha!I confortn to the requirements of <br /> 3 Section E-03.10 except that the requirements fcr stabilometer R value and swell <br /> 4 pressure do not apply. <br /> 5 <br /> �� 6 9-03.12(2) Gravel Backfil! tor Walls <br /> 7 Gravel backfill for walls shall consist of free Jraining granular material, <br /> 8 essentially free from various type� of wood waste or other extraneous or <br /> 9 objectionable materials. It shall meet the following requirements for grading and <br /> 10 quality when placed in hauling vehicles for delivery to the roadway or during <br /> 11 manufacture an�i placement into a temporary stockpile. The exact point of <br /> i 12 acceptance will be determined by the Engineer. <br /> 13 <br /> 14 Sieve Size Percent Passing <br /> I 15 4"square 100 <br /> 16 �/z" square 2:-70 <br /> 17 U.S. No. 200 5.0 max. <br /> � 18 <br /> �, �9 Dust Ratio: % Passin U.S. No. 200 y3 max. <br /> 20 % assmg . . 0. 40 <br /> 21 <br /> I 22 Sand Equivalent 55 min. <br /> 23 <br /> 24 All percentages are by weigtrt. <br /> 25 <br /> 26 That portion of the inaterial retained on a Ya-inch square opening shall contain <br /> 27 not more than 0.20 percer[by weigM of wood waste. <br /> I 28 <br /> 29 9-03.12(3) Grave'I Backfill for Pipe Zone Bedding <br /> 30 Gravel backfill for E;ipe zone bedding shall consist of crushed, processed, or <br /> I 31 naturally occurring g�anular material. It shall be essentially free frorn various <br /> 32 types af �vood waste or other extraneous or objectionable materials. It shai! <br /> 33 have such characteristics of size and +shape that it will compact readily and shall <br /> I 34 meet the following specifications for grading and quality: <br /> 35 <br /> 36 Sieve Size Percent Passing <br /> 37 1"square 100 <br /> 38 '/a"square 25-80 <br /> 39 U.S. No. 200 15.0 max." <br /> I 40 Sand Equivalent 3Q min. <br /> 41 <br /> 42 `5.0 max. for sanitary sewer installations. <br /> 43 <br /> ' 44 All percentages are by weight. <br /> 45 <br /> a6 9-03.12(4) Gravel Backfill for Drains <br /> 47 Gravel backiill for drains shall c�nform to the foliowing gradings: <br /> 48 <br /> 49 Sieve Size Percent �'assing <br /> i 50 1"square 100 -- <br /> 51 3/a" square 80 100 <br /> ENGLISH AMENDMENTS DIVISION 9 03.AP9 <br /> JUNE 8, 1998 Page�4 <br /> � <br />