870 consolida ted satisfactorily by spading or vibrating. Indications of initial set in the concrete to such an extent as to adversely affect the workability of the concrete during placement shall be cause for rejection. The concrete shall be in accordance with one of the following:
i.Concrete produced for other construction items under an approved mix design. ii. Concrete produced from premixed ingredients sold commercially in acceptable sacks, such as "Sacrete", or "Quickrete", "Handicrete ” or approved equal. Pre mixed commercial preparations shall be mixed in accordance with the manufacturer's instructions. iii. Concrete produced from separate components proportioned by volume in the ratio of one part Portland cement to two parts sand to three parts coarse aggre gate. Sand and coarse aggregate shall be visually inspected for deleterious substances, and such matter shall be removed prior to mixing.
715.13 Preformed Fabric Pads :
Material shall conform to the requirements of the AASHTO Standard Specifications for Highway Bridges, Division II, Section 18.4.10.1. A certified copy of test reports showing compliance with the above requirements shall be furnished the Division's Shop Inspector, or to other representatives of the Division as may be designated, for each shipment.
715.14 Elastomeric Bearing Pads :
Bearing pads shall meet the requirements of the AASHTO Standard Specifications for Highway Bridges, except for sampling frequency.
715.14.1 Sampling Frequency for Elastomeric Bearing Pads: The sampling rate shall
be one bearing pad per lot, per nominal dimensional size. (A chang e in nominal dimensional size is any change in the designed length, width or height of the bearing pad.)
715.14.2 Approval for Bearing Pads Without Shims: Beginning January 1, 2024
bearing pads that do not include shims or internal stiffeners will only be accepted using NTPEP test results and a certificate of compliance from NTPEP. Prior to January 1, 2024 the WVDOH will accept NTPEP test results and a c ertificate of compliance from NTPEP for approval of bearing pads without shims or internal stiffeners, or a company without NTPEP test results and a certificate of compliance from NTPEP can still submit bearing pads for acceptance testing using 715.14 and 715.14.1 until December 31, 2023.
715.15 Elastomeric Bearing Pads for Bridge Railing Posts :
Elastomeric bearing pads for bridge railing posts shall have a thickness of 1/8 inch unless modified by the project plans. The pads shall have a minimum tensile strength of 1,000 psi (7 M pa) when tested in accordance with ASTM D412. The pads shall have a durometer hardness of 55 to 75 when tested in accordance with D2240. 871 715.16 -CLAY OR SHALE BRICK : Brick shall conform to the requirements of one of the following Specifications: Sewer Brick ............................... AASHTO M 91, Grade SM or MM Sewer Brick ................................ ...... ASTM C32, Grade SM or MM Building Brick ................................ ..... AASHTO M 114, Grade SW Building Brick ................................ .............. ASTM C62, Grade SW
715.17 Concrete Brick :
Concrete brick shall conform to the requirements of ASTM C55; the grade shall be as specified on the Plans.
715.18 Concrete Masonry Units :
Hollow load -bearing concrete masonry units shall conform to the requirements of ASTM C90. The type and grade shall be as shown on the Plans. Solid preca st segmental concrete masonry units for construction of catch basins and manholes shall conform to the requirements of ASTM C139.
715.19 Precast Concrete Units for Manholes and Inlets :
Precast concrete units for manholes shall conform to the requirements in AASHTO M 199 and MP 604.02.40. In addition, air entrainment in the concrete shall be seven percent (7%) plus or minus two percent (2%) . Portland cement concrete for precast inlets s hall be in accordance with the applicable portions of the "Materials", "Manufacture" and "Physical Requirements" sections of AASHTO M 199, with the additional statement regarding compression tests to be included in the "Physical Requirements" section: "If no design strength is specified for precast concrete inlets, the minimum 28 -day compressive strength shall be considered to be the 3,200 psi (20 M pa) minimum cylinder strength." Also, for precast inlets, air entrainment in the concrete shall be seven per cent (7%) plus or minus two percent (2%) . Surface finish for precast inlets is not required, except, if resultant exposed surfaces have unsightly voids, flaking or other surface defects present, those imperfections shall be repaired in accordance with the requirements of 601.11.1 for Class 1, Ordinary Surface Finish.
715.20 through 715.21 : Blank
715.22 Precast Concrete Median Barriers (Permanent ):
715.22.1 Description: Precast median barriers shall conform to the shape and dimensions
shown on the Plans and shall meet the following requirements:
715.22.2 Materials: Materials shall meet the requirements specified in the following
Subsections of Division 700:
Source: West Virginia Standard Specifications for Road and Bridge Construction, 2023 Edition. Pages 892–893 of 1,006.