216(c) Water shall conform to Section 216.
d.Admixtures shall conform to Section 215.
218.03 Detail Requirements
Hydraulic cement mortar and grout shall consist of a mixture of hydraulic cement, fine aggregate, water, and admixtures as specified herein. Hydraulic cement mortar and grout shall contain from 3 to 7 percent entrained air. Air-entrained hydrau - lic cement may be used. The Contractor or supplier shall mix hydraulic cement mortar and grout with the minimum amount of water necessary to obtain the required consistency.
a.Hydraulic cement mortar shall consist of 1 part hydraulic cement, 2 1/2 parts fine aggregate by weight, and sufficient water to produce a stiff mixture. Grading C fine aggregate shall be used.
b.Nonshrink mortar shall consist of 1 part hydraulic cement, 2 parts fine aggregate by weight, a set retarder or other admixture that will reduce the amount of required mixing water, and sufficient water to produce a stiff mixture. Grading C fine aggregate shall be used.
c.Hydraulic cement grout shall consist of 1 part hydraulic cement, 2 parts fine aggregate by weight, and sufficient water to produce a free-flowing mixture. Grading A or C fine aggregate shall be used.
d.High-strength grout and mortar shall consist of a commercially produced prepackaged, non shrink, hydraulic cement mixture conforming to ASTM C1107 modified by the following: The grout/mortar shall develop a 7-day compressive strength of at least 4,000 pounds per square inch when tested in accordance with ASTM C109, and a 7-day bond strength of at least 1,000 pounds per square inch when tested in accordance with VTM-41, except that epoxy shall not be used to develop the bond. SECTION 219—RIGHT-OF-W AY MONUMENTS
219.01 Description
These specifications cover concrete and metal markers used to designate right-of-way boundaries.
219.02 Detail Requirements
Right-of-way monuments shall be manufactured from reinforced concrete or metal conforming to the dimensions and details shown in the Standard Drawings, and in accordance with these specifications.
a.Concrete Monuments: Concrete shall be Class A3 conforming to Section 217, except that the Department will allow the use of Type I cement and a change in the aggregate size.218.02 217Steel reinforcement shall conform to Section 223 and shall be placed as shown on the Standard drawings. Monuments shall be cast in one piece with smooth and uniform surfaces. Monuments shall withstand a cracking load of at least 4,000 pounds and a destruction load of 5,000 pounds when tested transversely on a 24-inch span and shall have an absorption value of not more than 10 percent. Tests will be performed in accordance with AASHTO T177.
b.Metal Monuments: Material for steel pins shall conform to Section 223. Material for locator posts shall conform to Section 226 or Section 229. Steel posts or pins shall be galvanized in accordance with ASTM A123. SECTION 220—CONCRETE CURING MATERIALS
220.01 Description
These specifications cover materials used to maintain the humidity and temperature of freshly placed concrete to ensure satisfactory hydration and proper hardening of the concrete.
220.02 Detail Requirements
Concrete curing materials shall consist of waterproof paper, polyethylene (PE) film, a combination of burlap and PE film, liquid membrane-forming compound, or water. Concrete curing materials shall be free from impurities that may be detrimental to the surface of concrete or the proper curing of concrete.
a.Waterproof paper shall conform to AASHTO M171. One side shall be composed of white, light- reflecting paper.
b.PE film shall conform to AASHTO M171 except that its nominal thickness shall be 3.0 mils. The thickness at any point shall be at least 2.5 mils.
c.Burlap and PE film may be used in combination. They shall be bonded securely so that they cannot be easily separated in a dry or saturated condition. White PE film shall conform to the reflectance requirements of AASHTO M171. Burlap shall conform to AASHTO M182, Class 3. The combination product shall have a total weight of 11 ounces per square yard with 11 threads of burlap per inch.
d.Liquid membrane-forming compounds shall be used on concrete masonry except bridge substructure elements. Fugitive dye compounds shall be used on bridge substructure elements. The Contractor shall protect concrete surfaces or remove liquid membrane-forming compound from concrete surfaces to which a bonding compound, joint sealer, or waterproofing material is to be applied. Liquid membrane-forming compounds will be tested in accordance with VTM-2 and shall conform to the following:220.02
Source: Virginia Road and Bridge Specifications, 2020 Edition. Pages 244–244 of 1,065.