Section 725 — Miscellaneous Material
725.01Water. Conform to the following:
(a)Water for cementitious materials. Provide water for mixing or curing cement, concrete, mortar, or grout that conforms to AASHTO M 157. Potable water of known quality may be used without testing according to ASTM C1602. Potable water is safe for human consumption as defined by the public health authority having jurisdiction.
(b)Water for vegetation. Provide water for the planting or care of vegetation that is free of substances injurious to plant life (such as oils, acids, alkalies, or salts).
(c)Water for construction. Provide water for earthwork, pavement courses, dust control, and incidental construction that is free of substances detrimental to the work.
725.02Calcium Chloride, Magnesium Chloride, and Lignosulfonate.
(a)Calcium chloride liquid. Provide a water solution conforming to the following:
(1)Calcium chloride liquid ASTM D98 , Type L
(2)Calcium chloride by mass 35 percent minimum
(b)Calcium chloride flake. Conform to ASTM D98 , Type S, Grades N1, N2, N3, or N4 , Class A.
(c)Magnesium chloride liquid. Provide a water solution conforming to the following:
(1)Magnesium chloride by mass 28 percent minimum
(2)Specific gravity, ASTM D1298 1.29 to 1.33
(d)Lignosulfonate liquid. Provide a water solution with a base cation of ammonia, calcium, or sodium. Conform to the following:
(1)Dry solids 50 percent Use Pulp and Paper Technical Association of Canada standard test Method H.1, Determination of Solids Content of Pulp and Paper Mill Effluents .
(2)Specific gravity, ASTM D1475 1.20 minimum
(3)pH, ASTM E70 3.0 to 8.0
725.03Lime.
(a)Lime for masonry. Conform to ASTM C207, Type NA.
(b)Lime for soil stabilization. Conform to AASHTO M 216.
(c)Lime for asphalt mixtures. Conform to AASHTO M 303.
725.04R eserved .
725.05Mineral Filler. Conform to AASHTO M 17.
725.06Concre te Building Brick. Conform to ASTM C55, normal weight.
725.07Concrete Masonry Units. Conform to one of the following:
(a)Loadbearing concrete masonry units ASTM C90, normal weight
(b)Concrete masonry units for constructing catch basins and manholes ASTM C139
(c)Nonloadbearing concrete masonry units ASTM C129, normal weight
725.08Paving Brick. Conform to one of the following:
(a)Pedestrian and light traffic paving brick ASTM C902, Class SX,
Type I
(b)Heavy vehicular paving brick ASTM C1272, Type F,
Application PS
725.09Precast Concrete Units and Accessories. Conform to the following:
(a)Precast reinforced concrete manhole sections AASHTO M 199
(b)Precast concrete barrier ASTM C825
(c)Concrete grid paving units ASTM C1319
(d)Underground precast concrete utility structures ASTM C858
(e)Precast concrete water and wastewater structures ASTM C913
(f)Solid concrete interlocking paving units ASTM C936
725.10Frames, Grates, Covers, and Ladder Rungs. Fabricate metal grates and covers to evenly bear on the frames. Correct bearing inaccuracies by machining. Assemble units before shipment. Mark pieces to facilitate reasse mbly at the installation site. Uniformly coat castings with a commercial preservative according to the manufacturer’s standard practice. Conform to the following:
(a)Gray iron castings AASHTO M 105
(b)Carbon steel castings AASHTO M 103
(c)Structural steel ASTM A36
(d)Galvanizing AASHTO M 111
(e)Malleable iron castings ASTM A47 873 (f) Aluminum alloy ladder rung material ASTM B221, alloy 6061- T6
(g)Aluminum castings ASTM B26, alloy 356.0- T6
725.11Detectable Warning Tape. Provide tape conforming to ASTM D2103.
725.12Epoxy Resin Adh esives. Provide epoxy resin adhesives conforming to AASHTO M 235.
725.13Slurry (Drilling Fluids).
(a)Mineral slurry. Provide sodium bentonite or attapulgite in potable water. Use a mineral grain size that remains in suspension with sufficient viscosity and gel characteristics to transport drilled material out of the hole.
(b)Polymer slurry. Provide a slurry compatible with soil type and water chemistry.
725.14Polymer Concrete and Mortar. Provide a mixture of monomers or resin binders that polymerize without the use of portland cement aggregates in the proportions recommended by the polymer manufacturer with a minimum compressive strength of 3500 pounds per square inch in 4 hours. Conform to the following:
(a)Epoxy mortar. Conform to ACI 503.4, Standard Specification for Repairing Concrete with Epoxy Mortars .
(b)Polyester resin grout. Provide polyester resin grout with a minimum ultimate compressive strength of 14,000 pounds per square inch, a minimum ultimate tensile strength of 2500 pounds per square inch, and a minimum ultimate shear strength of 4500 pounds per square inch when fully cured. Conform to ASTM F432, except where noted. Provide polyester resin grout consisting of an unsaturated polyester resin, evenly filled with nonreactive, inorganic aggregate of suitable size, and a separated catalyst filled with nonreactive inorganic f iller. Provide resin in cartridge form. Provide cartridge lengths and diameters according to the manufacturer recommendations for the specified drill hole and reinforcing bar size. Provide resin cartridges readily and individually identified as to their re spective gel times.
(c)Polyurethane grout. Conform to Table 725-1. Table 725-1
Polyurethane Grout Properties
Property Test Method Requirement
Grout de nsity ASTM D1622 3 lb/ft3 minimum Compressive strength ASTM D1621 30 psi minimum Compressive modulus ASTM D1621 1700 psi minimum Dimensional stability ASTM D2126 - 40 °F 2% maximum 200 °F 15% maximum Tensile strength ASTM D1623 60 psi minimum Tensile modulus ASTM D1623 1700 psi minimum Shear strength ASTM C273 35 psi minimum Shear modulus ASTM C273 500 psi minimum Flexural strength ASTM D790 50 psi minimum Flexural modulus ASTM D790 950 psi minimum Water absorption ASTM D2842 2% maximum Elongation ASTM D1623 1% maximum Closed cell content ASTM D6226 90% minimum
725.15Color Coating. Provide a semi -opaque colored toner containing methyl methacrylate -ethyl acrylate copolymer resins or equivalent resins, solvents, and color -toning pigments suspended in solution by a chemical suspension agent. Provide color -toning pigments consisting of laminar silicates, titanium dioxide, and inorganic oxides. Conform to the following:
(a)Mass per gallon , ASTM D1475 8.3 lb minimum
(b)Solids by mass, ASTM D2369 30 percent minimum
(c)Solids by volume 21 percent minimum
(d)Drying time, ASTM D1640 30 minutes at 70 °F and 50 percent maximum humidity
(e)Color change, ASTM D822, 1000 hours No appreciable change
(f)Resistance to acids, alkalies, gasoline, and mineral spirits, ASTM D543 Excellent
(g)Water vapor transmission from interior concrete, ASTM D1653 Transmittable
(h)Oxidation over time None
725.16Galvanic Anodes. Provide galvanic anodes that have at least 100 grams of zinc conforming to ASTM B418 Type II. 875 725.17 Polyester Resin Binder. Provide polyester resin binder meeting the following requirements:
(a)Be an unsaturated isophthalic polyester- styrene co -polymer;
(b)Contain at least 1 percent by weight gamma -methacryloxypropyltrimethoxysilane, an organosilane ester silane coupler;
(c)Used with a promoter that is compatible with suitable methyl ethyl ketone peroxide and cumene hydroperoxide initiators;
(d)Conform to Table 725-2. Table 725-2
Polyester Binder Resin Properties
Quality Characteristic Test Method Requirement Viscosity , cP, RV, No. 1 spindle, 20 RPM, at 77 °F(1) ASTM D2196 75 to 200 Specific gravity at 77 °F(1) ASTM D1475 1.05 to 1.10 Elongation, % 35 minimum Type I specimen, 0.25±0.03- inch-thick, rate = 0.45 in/min ASTM D638 Sample conditioning: 18/25/50+5/70 ASTM D618 Tensile strength, psi 2500 minimum Type I specimen, 0.25±0.03 -inch-thick, rate = 0.45 in/min ASTM D638 Sample conditioning: 18/25/50+5/70 ASTM D618 Styrene content, % by weight(1) ASTM D2369 40 to 50 PCC saturated surface- dry bond strength, psi, at 24 hours and 70±2 °F California Test 551 500 minimum
(1)Perform test before adding initiator.
725.18High Molecular Weight Methacrylate. Provide a wax -free, low odor, high molecular weight methacrylate primer consisting of a resin, initiator, and promoter. Use a promoter re commended by the system provider. Use an initiator consisting of a metal drier and peroxide. When supplied separately from the resin, do not mix the metal drier directly with the peroxide. Conform to Table 725-3. Table 725-3 High Molecular Weight Methacrylate Resin Properties
Property Test Method Requirement
Viscosity , cP, Brookfield RV with UL adaptor , 50 RPM, at 77 °F(1) ASTM D2196 25 maximum Volatile content, %(1) ASTM D2369 30 maximum Specific Gravity, at 77 °F(1) ASTM D1475 0.90 minimum Flash Point, °F(1) ASTM D3278 180 minimum Vapor Pressure, inches Hg, at 77 °F(1) ASTM D323 0.04 maximum Tack -free time, minutes, at 77 °F Prepare specimens under California Test 551 400 maximum PCC Saturated Surface -Dry Bond Strength, Adhesive , psi, at 24 hours and 70±1 °F(2) California Test 551, Part 5 700 minimum
(1)Perform test before adding initiator.
(2)PPC at 12 percent resin content by weight of the dry aggregate .
725.19Fiber -Reinforced Polymer. Fabricate polymer structures from high -strength E -glass and isophthalic polyester resin unless otherwise specified. Apply weathering and ultraviolet light protection by addition of a 10- mil polyester veil to the laminate construction. Conform to Table 725-4. Table 725-4
FRP Performance Requirements
Property Test Method Requirement , psi
Tensile strength ASTM D638 30,000 minimum Compressive strength ASTM D6641 30,000 minimum Shear strength ASTM D2344 4500 minimum Flexural strength ASTM D790 30,000 minimum Young’ s modulus ASTM D638 2,500,000 minimum
725.20Penetrating Sealant. Provide a silane penetrating sealant, with 40 percent solids and active materials dispersed in water, conforming to Table 725-5. Table 725-5
Penetrating Sealant Requirements
Property Test Method Requirement
VOC content EPA Method 24 675 lb/yd3 maximum Water absorption NCHRP Report 244 Series II 85% reduction minimum Chloride absorption NCHRP Report 244 Series II 85% reduction minimum Chloride absorption NCHRP Report 244 Series IV Weathering Test 95% reduction minimum
Resistance to chloride ion
penetration AASHTO T 259 & T 260 0.55 lb/yd³ at 0.5 inch depth maximum