Stone and Broken Concrete Art. 1005.01
1.Resistivity. The resistivity according to Illinois Modified AASHTO T 288 shall be greater than 3000 ohm centimeters for galvanized reinforcement, and 1500 ohm centimeters for aluminized Type 2 reinforcement. However, the resistivity requirement is not applicable to CA 7, CA 8, CA 11, CA 13, CA 14, CA 15, and CA 16.
2.The chlorides shall be less than 100 parts per million according to Illinois Modified AASHTO T 291 or ASTM D 4327. For either test, the sample shall be prepared according to Illinois Modified AASHTO T 291.
3.The sulfates shall be less than 200 parts per million according to Illinois Modified AASHTO T 290 or ASTM D 4327. For either test, the sample shall be prepared according to Illinois Modified AASHTO T 290.
4.The organic content shall be a maximum of 1.0 percent according to Illinois Modified AASHTO T 267.
g.Test Frequency. Prior to the start of construction, the Contractor shall provide internal friction angle and pH test results demonstrating the select fill material meets the specification requirements. Resistivity, chlorides, sulfates, and organic content test results shall also be provided if steel reinforcement is used. The laboratory performing the Illinois Modified AASHTO T 288 test shall be approved by the Department according to the Bureau of Materials Policy Memorandum “Minimum Laboratory Requirements for Resistivity Testing”. These test results shall be no more than 12 months old. In addition, a sample of select fill material will be obtained by the Engineer for testing and approval before construction begins. Thereafter, the minimum frequency of subsequent sampling and testing at the jobsite will be one per 40,000 tons (36,300 metric tons) of select fill. Testing to verify the internal friction angle will only be required when the wall design utilizes a minimum effective internal friction angle greater than 34 degrees. SECTION 1005. STONE AND BROKEN CONCRETE FOR EROSION PROTECTION, SEDIMENT CONTROL, AND ROCKFILL
1005.01 Stone for Erosion Protection, Sediment Control, and Rockfill. The
material will be sampled and inspected according to the Bureau of Materials Policy Memorandum, “Inspection of Large Sized Aggregate and Rip Rap used for Erosion Protection, Sediment Control, Rockfill, and Aggregate Subgrade Improvement”. The material shall be according to the following.
a.Description. The material shall be stone, quarried from undisturbed, consolidated deposits (ledges) of rock reasonably free of shale and shaly stone. The ledges shall be sufficiently thick to produce the desired dimensions. The stone shall be reasonably free of laminations, seams, cracks, and other structural defects or imperfections tending to destroy its resistance to weather. Field stone or boulders will not be accepted. Bedding material shall be crushed stone, crushed gravel, crushed sandstone, or crushed slag meeting the requirements of Article 1004.01(a). Art. 1005.01 Stone and Broken Concrete
b.Quality. The stone shall be according to the following.
1.Stone for Erosion Protection or Sediment Control. The material shall be quarried from ledges meeting the quality designations listed in the following table. QUALITY OF STONE FOR EROSION PROTECTION AND SEDIMENT CONTROL QUALITY TEST QUALITY A 1/ 2/ 3/ QUALITY B 1/ Na2SO4 Soundness 5 Cycle, Illinois Modified AASHTO T 104 1/ Max. % Loss 1/ Elongated pieces (length is greater than five times the average thickness) shall not exceed ten percent by weight. 2/ The stone, when checked in a full gradation product, shall have a specific gravity (dry) greater than 2.450, as determined by the Department. 3/ The stone shall be reasonably free of chert. In addition to the above quality requirements, crushed slag used as a bedding material shall also meet the requirements in ITP 202 according to the Bureau of Materials Policy Memorandum, “Crushed Slag Producer Certification”.
2.Stone for Rockfill. The material shall be quarried from ledges consisting of sound, durable rock reasonably free of objectionable, deleterious material as determined by the Department.
c.Gradation. The stone shall be according to the following.
1.Stone for Erosion Protection or Sediment Control. The material shall meet the gradation limits listed in the following tables. All gradations produced shall be well graded. BEDDING MATERIAL GRADATIONS Grad. No. Percent Passing Sieves 4 in. (100 mm) 3 in. (75 mm) 2 in. (50 mm) 1 1/2 in. (37.5 mm) No. 4 (4.75 mm) RR 1 100 53±23 8±8 RR 2 100 53±23 8±8 Stone and Broken Concrete Art. 1005.02 EROSION PROTECTION AND SEDIMENT CONTROL GRADATIONS Grad. No. Percent Passing Rock Size (lb) 10001/ 6001/ 4001/ 300 170 150 1/ 90 50 1/ 40 12 10 6 3 1 RR 3 100 50±20 8±8 RR 4 100 50±20 8±8 RR 5 100 50±20 8±8 RR 6 100 50±20 8±8 RR 7 100 50±20 8±8 EROSION PROTECTION AND SEDIMENT CONTROL GRADATIONS (METRIC) Grad. No. Percent Passing Rock Size (kg) 4551/ 2701/ 1801/ 135 75 70 1/ 40 20 1/ 18 5 4 3 1 0.5 RR 3 100 50±20 8±8 RR 4 100 50±20 8±8 RR 5 100 50±20 8±8 RR 6 100 50±20 8±8 RR 7 100 50±20 8±8 1/ A maximum of 15 percent of the total test sample by weight may be oversize material. Each oversize piece shall not exceed the maximum size of the gradation by more than 20 percent.
2.Stone for Rockfill. The material may be shot rock, primary crusher run, or other specified gradations approved by the Department.
d.Shipping Tickets. Shipping tickets for the material shall be according to the Bureau of Materials Policy Memorandum, “Designation of Aggregate Information on Shipping Tickets”.
1005.02 Broken Concrete for Erosion Control. The material shall be made
from newly broken, sound concrete pavement or other suitable concrete debris from demolished concrete construction having a minimum thickness of 6 in. (150 mm) between unbroken surfaces. Concrete showing excessive popping, spalling, cracking, or any other type of disintegration indicating poor resistance to weathering will not be acceptable. No reinforcing steel or other such material shall be protruding from the broken pieces. The gradation or sizing of the pieces shall be according to
Article 1005 — 01(c).
Art. 1006.01 Metals SECTION 1006. METALS
1006.01 Corrugated Steel Pipe and Corrugated Steel Pipe Arch. The pipe
and arch shall be according to the following.
a.Corrugated Steel Pipe and Corrugated Steel Pipe Arch; Bituminous Coated Corrugated Steel Pipe and Bituminous Coated Corrugated Steel Pipe Arch; Perforated Corrugated Steel Pipe; Zinc and Aramid Fiber Composite Coated Corrugated Steel Pipe; and Aluminized Steel Type 2 Corrugated Pipe and Corrugated Pipe Arch. The pipe and arch shall be according to AASHTO M 36 and the following.
1.Bituminous coatings shall be according to AASHTO M 190, Type A. Bituminous coating for the connecting bands will not be required. Any damaged bituminous coating shall be repaired.
2.The perforations in perforated corrugated steel pipe shall have a nominal diameter of 3/16 in. (5 mm) when fine aggregate is used for backfill.
3.The sawed or cut ends of all corrugated steel pipe shall be coated according to the methods described in the Repair of Damaged Coatings in AASHTO M 36.
4.Round pipes 48 in. (1200 mm) in diameter and smaller may be fabricated with the smooth sleeve-type coupler listed in AASHTO M 36. The gasket material on the coupler shall be polyisoprene or equal with a durometer hardness of 45 ± 5 (ASTM D 2240, Shore A).
b.Precoated Galvanized Corrugated Steel Pipe and Precoated Galvanized Corrugated Steel Pipe Arch. The precoated steel sheets used to fabricate these items shall be according to AASHTO M 246, Grade 250/250. The precoated pipe and pipe arch shall be according to AASHTO M 245. The sawed or cut ends of corrugated pipe shall be coated according to the methods described in the Repair of Damaged Coatings in AASHTO M 245. Precoating for the connecting bands will not be required. When the smooth sleeve-type coupler is used, the gasket material on the coupler shall be polyisoprene or equal with a durometer hardness of 45 ± 5 (ASTM D 2240, Shore A).
1006.02 Corrugated Structural Plate Pipe, Pipe Arches, and Arches.
Corrugated steel structural plate pipe, pipe arches, and arches that are fabricated and erected in sections shall be according to AASHTO M 167. Corrugated aluminum alloy structural plate pipe, pipe arches, and arches that are fabricated and erected in sections shall be according to AASHTO M 219.
1006.03 Corrugated Aluminum Alloy Pipe and Corrugated Aluminum Alloy
Pipe Arch. Corrugated Aluminum Alloy Pipe and Corrugated Aluminum Alloy Pipe Arch; Bituminous Coated Corrugated Aluminum Alloy Pipe and Bituminous Coated Corrugated Aluminum Alloy Pipe Arch; and Perforated Corrugated Aluminum Alloy Pipe. The pipe and arch shall be according to AASHTO M 196 and the following.
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 792–795 of 1,217. View official source ↗