872 MATERIAL SUBSECTION Air Entraining Admixture 707.1 Cement 701.1 Coarse Aggregate 703.1, 703.2, or 703.3 Expansion Joint Filler Preformed 708.1 Fine Aggregate 702,1 Joint Sealing Material 708.3 Reinforcing Steel 709.1 and 709.4 Water 715.7 Sampling and testing of materials shall be in accordance with the minimum frequency stated in MP 603.02.10.
715.22.3 Proportioning: Concrete shall be in proportion to meet the following
requirements:
i.The minimum cement factor shall be seven sacks per cubic yard of concrete. ii. The maximum water content shall be five gallons per sack of cement. iii. The amount of entrained air in the plastic concrete shall be seven plus or minus two percentage points. iv. The consistency shall be such as to allo w proper placement, consolidation, and finishing.
715.22.4 Placing and Curing: Concrete shall be placed in forms designed to conform to
the lengths, shapes and other details of the median barrier shown on the Plans. Curing shall be in accordance with the applicable requirements of 601.
715.22.5 Finishing: The surface of the barrier shall be smooth and free from air bubble
pockets, depressions, and honeycombs. When the barriers are removed from the forms, any surface imperfections present shall be repaired in accordance with the requirements of 601.11.1 -Class I, Ordinary Surface Finish.
715.23 Gabions :
Welded wire fabric gabions shall conform to ASTM A974 and non -welded (twisted) wire mesh gabions shall conform to ASTM A975. Additionally, the use of fasten er rings in the assembly of the gabion baskets may be permitted by the Engineer, providing the rings have at least the same tensile strength, zinc coating, and size as the wire used in the body of the gabion.
715.24 Matting for Erosion Control :
715.24.1 General: Matting for erosion control shall be commercially designed and
manufactured especially for the prevention of soil erosion. The matting used shall be recommended by the technic al representative for a manufacturer and approved by the Engineer after an evaluation of the site conditions has been made. The manufacturer shall provide installation instructions and attest that the proposed matting is well suited to the particular site to be protected. The matting shall be stabilized or manufactured in such a way that the physical integrity of the product is maintained throughout the intended life expectancy. The matting shall not effect
Source: West Virginia Standard Specifications for Road and Bridge Construction, 2023 Edition. Pages 894–894 of 1,006.