Reinforcing Steel
Certified copies of mill reports attesting that the reinforcing
steel furnished contains no less than 25 percent recycled scrap
steel and meets the requirements specified herein, prior to the
installation of reinforcing steel.
1.3
WELDING
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NOTE: Delete this paragraph and submittal
requirement under SD-03 when welding is not
permitted. Welding will not be specified in
blast-resistant structures.
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Welders shall be qualified in accordance with AWS D1.4. Qualification test
shall be performed at the worksite and the Contractor shall notify the
Contracting Officer 24 hours prior to conducting tests. Special welding
procedures and welders qualified by others may be accepted as permitted by
AWS D1.4.
1.4
DELIVERY AND STORAGE
Reinforcement and accessories shall be stored off the ground on platforms,
skids, or other supports.
PART 2
PRODUCTS
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NOTE: Designer should require materials, products,
and innovative construction methods and techniques
which are environmentally sensitive, take advantage
or recycling and conserve natural resources.
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2.1
DOWELS
Dowels shall conform to ASTM A 675/A 675M, Grade 80. Steel pipe conforming
to ASTM A 53/A 53M, Schedule 80, may be used as dowels provided the ends
are closed with metal or plastic inserts or with mortar.
2.2
FABRICATED BAR MATS
Fabricated bar mats shall conform to ASTM A 184/A 184M.
2.3
REINFORCING STEEL
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NOTE: Grades and sizes of reinforcing steel will be
shown on the drawings. Low-alloy steel conforming
to ASTM A 706/A 706M is specified for its special
qualities such as bending ability and ease of
welding.
Specially coated bars (epoxy and zinc) may be
specified for use in a highly corrosive atmosphere
where concrete cover is not considered sufficient.
SECTION 03200A
Page 5
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