834.05 Storing and Handling Steel Piles.
832.07 Blank.
SECTION 833 LUMBER AND TIMBER - UNTREATED AND TREATED
833.01 Structural Lumber and Timber.
Structural lumber and timber shall be Southern Yellow Pine, unless otherwise noted on the plans or in the proposal, meeting the requirements of AASHTO M 168 “Standard Specification for Wood Products”. The grade of structural wood shall be as shown on the plans.
833.02 Preservative Treatment.
Preservatives for treated wood shall meet the requirements of AASHTO M 133 “Preservatives and Pressure Treatment Processes for Timber”. PILING MATERIALS
834.01 Concrete Piles.
Precast prestressed concrete piles shall be manufactured in accordance with the requirements given in Section 513.
834.02 Steel Pile Point Protectors.
The pile points shall be fabricated from cast steel meeting or exceeding the requirements of AASHTO M 103M. The pile points shall be properly identified as to the heat from which they were fabricated, either by this number being cast into the point or by being legibly stenciled on each point. Certified mill test reports shall be submitted for the pile points in accordance with the requirements given for the submittal of certified mill test reports for Structural Steel.
834.03 Steel Bearing Piles.
The material in rolled steel piles and splices shall conform to the requirements of AASHTO M 270 {AASHTO M 270M}, unless otherwise specified by plan details. All piles shall be rolled steel sections of the section number, size, and weight per foot {mass per meter} indicated on the plans and shall be fabricated in conformity with the requirements of ASTM A 6 {ASTM A 6M}. The heat number and section size shall be legibly marked on each piece by stamp, paint, tag, sticker or other industry acce pted method. Any piece that can not be properly identified at time of use will be rejected.
834.04 Steel Sheet Piles.
Permane nt steel sheet piling shall be of the type called for on the plans and shall conform to the requirements of AASHTO M 202 {AASHTO M 202M} and its supplementary requirement, S1. Temporary steel sheet piling shall conform to the requirements of AASHTO M 202 { AASHTO M 202M} and its supplementary requirement, S1 and may be either new piling or used piling, acceptable to the Engineer for the intended function. The temporary steel sheet piling shall be interlocking type piles having a 3/8 inch {9.4 mm} minimum web thickness.
834.05 Storing and Handling Steel Piles.
When placed in the leads, the pile shall conform to camber and sweep permitted by allowable mill tolerance. The method of storing and handling shall be such as to avoid undue bending stresses or other injury. Piles bent, cracked, or otherwise injured will be rejected.
835.01 General.
SECTION 835 STEEL REINFORCEMENT
835.01 General.
All reinforcing steel shall be Grade 60 {Grade 420} steel, unless otherwise stipulated in these Specifications or specifically designated by plan details. All steel reinforcement bars (smooth and deformed) must come from an ALDOT approved steel mill. Approved steel mills are listed in the Department’s Materials, Sources and Devices with Special Acceptance Requirements Manual, List I -12, Deformed and Plain Steel Bar Producing Mills. All reinforcing bars over 1/4 of an inch {6 mm} in diameter shall have deformations as prescribed in AASHTO M 31.
835.02 Reinforcing Bars.
Steel reinforceme nt bars 1/4 of an inch {6 mm} or less in diameter shall meet the requirements of AASHTO M 32. Steel reinforcement bars over 1/4 of an inch {6 mm} in diameter shall meet the requirements of AASHTO M 31.
835.03 Reinforcing Mesh or Mats.
WIRE FOR MESH REINFO RCEMENT. - Plain wire for mesh reinforcement shall meet the requirements of AASHTO M 32 . Deformed wire for mesh reinforcement shall meet the requirements of AASHTO M 225 . WELDED WIRE REINFORCEMENT. - Welded plain wire reinforcement mesh shall meet the requirements of AASHTO M 55 . Welded deformed wire reinforcement mesh shall meet the requirements of AASHTO M 221 . FABRICATED BAR OR ROD MAT. - Fabricated bar or rod mat shall meet the requirements of A ASHTO M 54.
835.04 Spiral Reinforcement.
Spiral reinforcement may be plain or deformed bars or may be cold drawn wire. Plain reinforcing bars shall conform (except for deformations) to AASHTO M 31, Grade 40 {Grade 300} or Grade 60 {Grade 420}. Deformed bars shall conform to Article 835.02. Cold drawn wire shall conform to AASHTO M 32.
835.05 Dowel and Tie Bars for Concrete Pavement.
a.Dowel Bars . Dowel bars shall be smooth round bars of the size shown by plan details. The bars shall be fabricated from steel conforming to AASHTO M 31 for Grade 40 or 60 {Grade 300 or 420}, or AASHTO M 227 for Grade 70 {Grade 480} or higher. The bars shall have a corrosion resistant coating conforming to the requirements of AASHTO M 254 for a Type A or Type B coating. One end of each dowel used in an expansion assembly shall be provided with an approved tight fitting non -collapsible expansion cap.
b.Tie Bars . Standard tie bars shall be of the size shown by plan details, fabricated from deformed bars meeting the requirements of AASHTO M 31 for Grade 40 or 60 {Grade 300 or 420}. Sectional tie bars shall be of the size shown by plan details fabricated from deformed bars meeting the requirements of AASHTO M 31 for Grade 60 {Grade 420} steel. Connectors shall be of a type approved by the Engineer.
835.06 Prestressing Steel.
a.Strand . Unless otherwise shown by plan details, stressing cables shall meet the requirements of AASHTO M 203 (ASTM A 416) Grade 1860 (270 ksi {1860 MPa}).
b.Bars. Stressing bars, when allowed by plan d etails, shall meet the requirements of AASHTO M 275 (ASTM A 722) for Type 1 or Type II with Mill Test Reports including Supplemental Requirements S1, S2 and S3, unless other requirements are provided by the plans or proposal.
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 744–744 of 934.