713.01 Erosion Control Stone
716 SECTION 713
713.01 Riprap Stone
Determine the bulk specific gravity and absorption in accordance with ASTM D 6473. Ensure the bulk specific gravity is at least 2.25, and the maximum absorption is 6.0 percent. Ensure the loss of soundness after 20 cycles is no greater than 15 percent when tested in accordance with OHDL -58. Provide riprap pieces with a width and thickness at least one -third the length. If placed on the embankment, distribute smaller stones throughout the mass. Provide the stone sizes specified in Table 713:1, Table 713:2, and Table 713:3: Table 713:1 Stone for Plain Riprap (Type I) Riprap Thickness, in [mm] Sizes, lb [kg] Maximum Average More than 80% of the riprap stone 12 [300] 150 [70] 30 – 50 [13 – 23] ≥20 [9] 18 [450] 300 [150] 70 – 125 [30 – 60] ≥30 [14] 24 [600] 1,000 [450] 225 – 400 [100 – 180] ≥40 [18] 30 [750] 1,000 [450] 225 – 400 [100 – 180] ≥40 [18] 36 [900] 2,000 [900] 450 – 800 [200 – 360] ≥80 [36] Table 713:2 Stone for Special Plain Riprap (Type II) Percent of Total Volume Volume of each stone, ft³ [m³] 40 – 60 5 – 12 [0.142 – 0.340] 20 – 30 2 – <5 [0.057 – <0.142] 10 – 20 0.25 – <2 [0.007 – <0.057] 5 – 15 <0.25 [0.007] EROSION CONTROL STONE 713.02 717 Table 713:3 Stone for Laid up (Type III) or Grouted Riprap (Type IV) Riprap Thickness, in [mm] Sizes, lb [kg] Range 60% or more of the riprap stone 12 [300] 50 – 250 [23 – 113] >100 [45] 18 [450] 50 – 250 [23 – 113] >150 [68] Note: The Department will not allow slabs or slivers. Use well graded, appropriately sized spalls.
713.02 Filter Blanket Mater Ial
Provide material for a filter blanket consisting of sand, gravel, or crushed stone, that has been processed, blended, or naturally combined. Limit deleterious materials to no greater than 3 percent. Provide filter blanket material containing 20 percent or less flat or elongated particles at a ratio of 1:5 if tested in accordance with ASTM D 4791 . Provide filter blanket within the gradation limits specified in Table 713:4 or Table 713:5: Table 713:4 Single Course Filter Blanket Gradation Sieve Size Percent Passing 4 in [100 mm] 100 2 in [50 mm] 60 – 90 1 in [25 mm] 40 – 70 ⅜ in [9.5 mm] 15 – 40 No. 4 [4.75 mm] 0 – 15 Table 713:5 Two Course Filter Blanket Gradation Sieve Size Percent Passing Lower Course Upper Course 6 in [150 mm] — 100 4 in [100 mm] — 90 – 100 2 in [50 mm] — 65 – 85 1 in [25 mm] — 40 – 70 ⅜ in [9.5 mm] 100 15 – 35 No. 4 [4.75 mm] 95 – 100 0 – 10 No. 8 [2.36 mm] 80 – 90 — No. 16 [1.18 mm] 55 – 75 —
713.03 Erosion Control Stone
718 Table 713:5 Two Course Filter Blanket Gradation Sieve Size Percent Passing Lower Course Upper Course No. 30 [600 μm] 30 – 60 — No. 50 [300 μm] 12 – 30 — No. 100 [150 μm] 0 – 10 —
713.03 Gabions, Revetment M Attresses, and Rock Filter Dams
Provide stone fill for gabions, revetment mattresses, and rock filter dams that is rough -fractured, cubical, and has the following characteristics: A soundness loss of no greater than 15 percent after 20 cycles when tested in accordance with OHDL -58. A bulk specific gravity of a t least 2.5 in accordance with ASTM D 6473. Dimensions in accordance with Table 713:6: Table 713:6 Stone Dimensions Structure Type Dimension Gabions a / rock filter dam 4 in – 8 in [100 mm – 200 mm] Revetment mattresses b 3 in – 5 in [75 mm – 125 mm] a If the gabion height exceeds 18 in [450 mm], the Department will allow 5 percent of the stone to have a maximum dimension of 10 in [250 mm]. b For 12 in [300 mm] revetment mattresses, the Department will allow the stone to have a maximum dimension of 6 in [150 mm]. MASONRY BRICK 714.02 719 SECTION 714 MASONRY BRICK
714.01 Masonry Brick Made F Rom Clay Or Shale
Provide Grade MW or SW masonry brick made from clay or shale in accordance with ASTM C62, except, the requirements for “Maximum Water Absorption by Five -Hour Boiling” and “Maximum Saturation Coefficient” do not apply. Use Grade MM or Grade MS bricks for manhole brick, in accordance with AASHTO M 91.
714.02 Concrete Building Br Ick
Provide normal weight concrete building brick in accordance with ASTM C 55, except, the requirements for “Water Absorption,” “Moisture Content,” and “Linear Shrinkage” do not apply.
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