729
7-104SECTIO N 729 – CURB MATERIALS
729.0 1 VERTICA L GRANIT E CURB . Vertical granite curb shall consist of hard, durable, quarried granite. It shall be gray in color, free from seams, cracks, or other structural defects, and shall be of a smooth splitting character. The curb may contain natural color variations that are characteristic of the granite source. Granite curb shall meet the requirements of ASTM C615 .
of the granite for curb materials. Such submission shall be made sufficiently in advance of ordering so that the Engineer may have an opportunity to judge the stone, both as to quality and appearance. Samples of curbing shall be submitted for approval only when requested by the Engineer.
the Plans and shall be of uniform thickness in any continuous run. The individual curb stones shall be furnished in minimum lengths of 6 feet. The top surface of the curb stones shall be sawed to an approximately true plane and shall have no projection or depression greater than 1/8 inch. The bottom surface may be sawn or split. The top front arris line shall be rounded to a 1/2 inch radius as shown in the Contract. The exposed arris li nes shall be pitched straight and true, with no variations from a straight line greater than 1/8 inch. The front face shall be at right angles to the plane of the top and shall be smooth quarry split or sawn for the full depth. Drill holes in the exposed p art of the face shall not be permitted. The front face shall have no projections greater than 1 inch or depressions greater than 1/2 inch, measured from the vertical plane of the face through the top arris line for 8 inches down from the top. For the remai ning distance, there shall be no projections or depressions greater than 1 inch measured in the same manner. The back surface of the curb stones shall have no projection for 3 inches down from the top which would fall outside of a plane having a batter of 3:1 (V:H) from the back arris line. The ends of all curb stones shall be square with the planes of the top and front face, and so finished that when the stones are placed end to end as closely as possible, no space more than 1 inch shall show in the joint for the full width of the top or down on the face for 8 inches. The remainder of the end may break back a maximum of 6 inches from the plane of the joint. Curbing stones to be set on a radius of 80 feet or less shall be cut to the curve required, and their ends shall be cut on radial lines.
729 7-105 729.0 2 GRANIT E SLOP E EDGING . Granite slope edging shall consist of hard, durable, quarried granite. It shall be gray in color, free from seams, cracks, or other structural defects, and shall be of smooth splitting character. The edging may contain natural color variations that are cha racteristic of the granite source. Granite slope edging shall meet the requirements of ASTM C615 .
of the granite for edging materials. Such submission shall be made sufficiently in advance of ordering so that the Engineer may have an opportunity to judge the stone, both as to quality and appearance. Samples of edging shall be submitted for approval only when requested by the Engineer.
the Plans and shall be of uniform thickness in any continuous run. The individual edging stones shall be furnished in minimum lengths of 2 feet. The tops and bottoms shall be not under the square more than 4 inches, or over the square at the back more than 1 inch, when so tested. The exposed face shall be smooth quarry -split or sawed. Drill holes will be permitted on the exposed face, but only along the bottom edge a nd extending no more than 3 inches upward from the edge. The exposed face shall have no projections or depressions greater than 1 inch, measured from a 24 -inch long straightedge placed as closely as possible on any part of the face. The ends of all edging stones shall be square with the plane of the exposed face and so finished that when the stones are placed end to end as closely as possible, no space more than 1 inch shall show in the joint for the full depth of the face. The arris lines at the ends shall be pitched with no variation from the plane of the face more than 1/4 inch. 729.0 3 PRECAS T REINFORCE D CONCRET E CURB . Precast reinforced concrete curb shall be solid, precast, reinforced units of uniform quality and appearance. All curb shall be cast in s teel or concrete forms which will produce a satisfactory surface requiring no further finishing, rubbing, or patching after the forms are removed, except for the removal of flash or excess material along the edges. Precast reinforced concrete curb shall co nform to the following requirements:
shall be cast in lengths of not less than 3 feet or greater than 10 feet. Random lengths of curb of not less than 3 fee t in length may be obtained by sawing regular precast curb, if the Engineer determines it is necessary to meet field conditions. All curbs to be set on a radius of 160 feet or less shall be precast to fit the curve as required.
729 7-106 (b) Marking . Each pour shal l be identified with a six -digit registration number (indicating in order the year, month, and day of month) cast in the curb, as well as the name or trademark of the manufacturer and the date of manufacture. A pour shall be considered one day’s production .
tested in accordance with AASHTO T 22 , shall have a minimum compressive strength of 5,000 psi. Bar reinforcement shall conform to the requirements of Subsection 713.01 .
AASHTO M 199 , for a suff icient length of time so that the concrete will develop the specified compressive strength at 28 days or less. 729.0 4 BITUMINOUS CONCRETE CURB . Bituminous concrete curb shall consist of blended aggregate, polyester fiber, performance -graded asphalt binder, and mineral filler if required.
requirements of Subsection 716.02 for Type IVS bituminous concrete pav ement, with the following modifications and requirements:
7.0% and 9.0% .
designation.
volumetric requirements are waived.
TABLE 729.0 4A – POLYESTER FIBER PROPERTIES Property Test Method Requirement Denier ASTM D1577 4.5 ± 1.5 Length (in.) -- 0.25 ± 0.02 Minimum tensile strength (psi) ASTM D2256 70,000 Specific gravity -- 1.36 ± 0.04 Minimum melting temperature (°F) -- 475
729 7-107 729.0 5 TREATE D TIMBE R CURB . Treated timber curb and stakes shall be either seasoned red
shall be fabricated prior to treatment in conformance with the dimensions and d etails shown on the Plans. The sides of the planks may be either surfaced or rough -sawn. Treatment shall be performed, inspected, tested, and reported in accordance with Subsection 72 6.01. All spikes, fasteners, U -bolts, nuts, and washers for treated timbe r curb shall conform to the dimensions shown on the Plans. They shall be of low - to medium -carbon steel, either galvanized or corrosion - resistance treated, and shall be of good commercial quality.
730
7-108SECTIO N 730 – PILING
730.0 1 STEEL PILING . Steel piling shall be rolled steel sections of the weight and shape shown on the Plans. Piles, splice plates, and point reinforcement shall be new material conforming to the requirements of ASTM A572, Grade 345 (Grade 50). When cast steel shoes are used, they shall conform to the requirements of AASHTO M 103, Grade 485 -275 (Grade 70 -40) or ASTM A148, Grade 550 -275 (Grade 80-40). 730.0 2 STEEL SHEE T PILING . Steel sheet piling shall be rolled steel sections of the type, shape, and weight shown on the Plans and shall be capable of being interlocked so that a continuous wall is formed when individual pieces are driven side by side. Permanent steel sheet piling shall be new material conforming to the requirements of AASHTO M 202 . 730.0 3 STEEL CASIN G FOR DRILLE D SHAFTS . Permanent steel casing for drilled shafts shall conform to the requirements of ASTM A36 or ASTM A252 , Grade 2.