|706.05 Precast Reinforced Concrete Box Section, 3 Sided Sections, And Precast Arch Sections|
706.05 C&MS (4-sided)
706.052 ( precast arch)
2. Sampling and/or Inspection Requirements:
Certified Plant Sampled and Tested Materials:
All Precast Reinforced Concrete Box Sections (4-Sided), 3-Sided Sections, and Precast Arch Sections are manufactured and certified under Supplement 1073. The Certified Supplier list is on the OMM website @ http://www.dot.state.oh.us/Divisions/ConstructionMgt/Materials/Pages/default.aspx. Materials from non-certified suppliers will not be accepted. Shop drawings should be submitted for 706.051 and 706.052 materials.
Inspect precast concrete sections upon delivery to the project for dimensions and condition. The internal rise and span shall comply with the requirements of the project plans.(Field) A TE-24 Shipping Notice must be received with the material. If the material fulfills the requirements it may be used immediately.
If the material does not fulfill the requirements, it shall be rejected. Send a copy of the TE-24 to the Det and notify OMM, Concrete Section. (Field)
Precast concrete culverts shall be essentially free of fractures and excessive surface roughness. Individual pieces may be rejected for the following:
Fractures or cracks passing through the slab or walls, except for a single end crack that does not exceed the depth of the joint.
Defects that would indicate imperfect proportioning, mixing and forming.
Honeycombed or open texture that would adversely affect the function of the culvert section.
Damaged ends, where such damage would prevent making a satisfactory joint.
Damage that in the Engineer's opinion would be detrimental to the performance or function of the culvert.
Markings shall be placed on the inside of the section within the top one-half of the culvert. Each precast section shall be clearly marked with the following:
Span, Rise, Design Table Number (for 4 sided boxes), Design Earth Cover, Specification Designation,
Date of Manufacture, Name or Trademark of the Manufacturer.
3. Method of Test:
(OMM Cement and Concrete Section)
4-sided Box Culverts:706.05, C1433
3-sided Culverts: 706.051 and shop drawings, ASTM C1504
Precast Arch: 706.052 and shop drawings, ASTM C1504