7-116 SECTIO N 745 – WATER 745.0 1 WATER . All water used shall be clear and free of harmful amounts of oil, salt, acids, alkalis, sugar, organic matter, or other substances injurious to the finished product, plant life, or the establishment of vegetation. Where the source of wa ter is relatively shallow, the intake shall be maintained at such a depth and so enclosed as to exclude silt, mud, grass, and other foreign materials. No formal tests of water will be made unless the Engineer questions the quality of the water. Water known to be of potable quality may be used without tests. Mixing water for concrete or mortar shall meet the requirements of ASTM C1602 . 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
Source: Vermont Standard Specifications for Construction, 2024 Edition. Pages 1268–1268 of 1,380.