Art. 586.01 Granular Backfill for Structures SECTION 586. GRANULAR BACKFILL FOR STRUCTURES
586.01 Description. This work shall consist of furnishing, transporting and
placing granular backfill for abutment structures.
586.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Fine Aggregate ................................................................................... 1003.04
b.Coarse Aggregates ............................................................................. 1004.05 CONSTRUCTION REQUIREMENTS
586.03 General. This work shall be according to Article 502.10, except as
modified below. The backfill volume shall be backfilled, with granular material as specified in Article 586.02, to the required elevation as shown on the plans. The backfill volume shall be placed in convenient lifts for the full width to be backfilled. Mechanical compaction will not be required. The granular backfill shall be brought to the finished grade as shown on the plans. When concrete is to be cast on top of the granular backfill, the Contractor, subject to approval of the Engineer, may prepare the top surface of the fill to receive the concrete as he/she deems necessary for satisfactory placement.
586.04 Method of Measurement. This work will be measured for payment as
follows.
a.Contract Quantities. The requirements for the use of contract quantities shall conform to Article 202.07(a).
b.Measured Quantities. This work will be measured for payment in place and the volume computed in cubic yards (cubic meters). The volume will be determined by the method of average end areas behind the abutment.
586.05 Basis of Payment. This work will be paid for at the contract unit price
per cubic yard (cubic meter) for GRANULAR BACKFILL FOR STRUCTURES. SECTION 587. CONCRETE SEALER
587.01 Description. This work shall consist of furnishing and applying a
sealer to concrete structures as shown on the plans.
587.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Concrete Sealer ...................................................................................... 1026 Bridge Relief Joint Sealer Art. 588.03 CONSTRUCTION REQUIREMENTS
587.03 General. Before the sealer is applied, the concrete surface shall have
a minimum 48 hour drying period, and shall be cleaned with oil-free compressed air or wire brushes to remove all oil, grime, and loose particles. Surfaces that will not respond to cleaning by compressed air or wire brushes shall be cleaned by sandblasting. Care shall be taken to prevent the sealer from flowing over the edges and onto any concrete that is not to be sealed. The sealer shall be applied according to the manufacturer’s instructions, and information provided in the Department’s qualified product list.
587.04 Method of Measurement. This work will be measured for payment in
place and the area computed in square feet (square meters).
587.05 Basis of Payment. This work will be paid for at the contract unit price
per square foot (square meter) for CONCRETE SEALER. SECTION 588. BRIDGE RELIEF JOINT SEALER
588.01 Description. This work shall consist of sealing transverse relief joints
in the bridge decks.
588.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Hot-Poured Joint Sealer ..................................................................... 1050.02 CONSTRUCTION REQUIREMENTS
588.03 General. The relief joint opening shall be formed to produce a
reservoir for the sealing material and shall be 1/4 in. (6 mm) wide by 3/4 in. (19 mm) deep. For concrete surfaces the relief joint shall be formed into the concrete. For HMA surfaces the relief joint shall be sawed into the surface. Immediately prior to pouring the sealer the joint opening shall be cleaned with compressed air so that it is free of all foreign and loose material and in a dry condition. The bridge deck relief joints to be sealed shall be free of cracked or spalled areas. Any cracked areas shall be chipped back to sound material before placing joint sealer. The hot-poured joint sealer shall be placed when the weather conditions are suitable, the air temperature in the shade is at least 40 °F (5 °C), and the forecast is for rising temperatures. Hot-poured joint sealer shall be stirred during heating to prevent localized overheating. The sealing material shall be applied to each joint opening according to the details shown on the plans or as directed by the Engineer, without spilling on the exposed deck surfaces.
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 533–534 of 1,217. View official source ↗