7-117 SECTIO N 746 – CALCIU M CHLORIDE
746.01 CALCIUM CHLORIDE . Calcium chloride shall conform to the requirements of AASHTO M 144 .
a.Solid Calcium Chloride . Solid calcium chloride shall be Type S, Grade N1 or Grade N2 in accordance with ASTM D98 .
b.Liquid Calcium Chloride . Liquid calcium chloride shall be Type L, a true solution not reconstituted from flake calcium chloride, in accordance with ASTM D98 , and meet the requirements of Table 746.01A . TABLE 746.01A – LIQUID CALCIUM CHLORIDE REQUIREMENTS Property Value Calcium chloride 35% ± 1% Alkali chloride as NaCl 2% max. Magnesium as MgCl 0.1%
746.02 CALCIUM CHLORIDE FOR FULL DEPTH RECLAMATION . Calcium chloride for full depth
reclamation shall be in accordance with Subsection 746.01(b) and meet the requirements of Table 746.02A . TABLE 746.02A – CONCENTRATION OF LIQUID CALCIUM CHLORIDE Component Concentration (lbs/gal.) Calcium chloride 5.050 Sodium chloride 0.200 Magnesium chloride 0.004 Calcium sulfate 0.004 Water 6.002 Total 11.260 7-118 SECTIO N 750 – TRAFFI C SIGNS 750.0 1 SIGN POSTS .
a.Steel Posts and Anchors . Steel posts and anchors shall conform to the following requirements:
1.Structural steel tubing shall conform to the requirements of Subsection 714.11 . Steel posts consisting of standard rolled steel structural shapes shall conform to the requirements of AASHTO M 270, Grade 250 (Grade 36). After fabrication, these posts shall be galvanized in accordance with AASHTO M 111 .
2.Steel posts consisting of flanged channels shall conform to the mechanical requirements of ASTM A499, Grade 60 and the chemical requirements of ASTM A1, 85 to 114 lbs/yard Rail Class. Steel posts shall con form to the details indicated on the Plans as to size, shape, weight, hole punching, hole drilling, and other details. After fabrication, these posts shall be galvanized in accordance with AASHTO M 111 .
3.Steel posts and anchors consisting of welded mech anical square tubes formed from hot - rolled carbon steel sheet shall conform to the mechanical and chemical requirements of ASTM A1011, Grade 380 (Grade 55) or Grade 245 (Grade 40). They shall conform to the details indicated on the Plans as to size, shape, weight, hole punching, hole drilling, strength, and other details. The posts shall be fabricated in accordance with ASTM A787, Type 2, and shall be galvanized with a G140 Coating in accordance with ASTM A653 . Alternatively, the posts shall be fabric ated in accordance with ASTM A787, Type 3, and shall be galvanized in accordance with AASHTO M 111 .
b.Wood Posts . Wood posts shall be seasoned, straight, and sound sawn timber comprised of either oak, cedar, spruce, western fir, or other approved wood. T he posts shall conform to the dimensions and grade shown on the Plans or requirements specified in the Contract. All wood posts shall be pressure -treated with preservative as specified in Subsection 726.01 . All cut ends or notches shall be field -treated in in accordance with AWPA Standard M4. Depending on size and location, wood posts may have to be drilled as shown on the Plans.
c.Sleeves . Sleeves for sign posts consisting of structural tubing shall conform to the requirements of ASTM A501 . They shall conform to the details shown on the Plans as to size, shape, and weight, and they shall be punched or drilled as shown on the Plans. After fabrication, all steel sleeves shall be galvanized in accordance with AASHTO M 111 .
Source: Vermont Standard Specifications for Construction, 2024 Edition. Pages 1269–1269 of 1,380.