Art. 481.08 Hot-Mix Asphalt Shoulders operations, water shall be added in such quantity that satisfactory compaction can be obtained.
481.08 Opening to Traffic. The road shall be open to traffic according to
Article 701 — 07.
481.09 Method of Measurement. This work will be measured for payment in
tons (metric tons), cubic yards (cubic meters), or square yards (square meters) according to Article 311.08, except payment will not be made for aggregate outside the plan width.
481.10 Basis of Payment. This work will be paid for at the contract unit price
per ton (metric ton) or per cubic yard (cubic meter) for AGGREGATE SHOULDERS, TYPE A, or AGGREGATE SHOULDERS, TYPE B; at the contract unit price per ton (metric ton) for AGGREGATE WEDGE SHOULDER, TYPE B; or at the contract unit price per square yard (square meter) for AGGREGATE SHOULDERS, TYPE A, or AGGREGATE SHOULDERS, TYPE B, of the thickness specified. SECTION 482. HOT-MIX ASPHALT SHOULDERS
482.01 Description. This work shall consist of constructing a hot-mix asphalt
(HMA) shoulder on a prepared subgrade, existing paved shoulder, or subbase.
482.02 Materials. Materials shall be according to Section 1030.
482.03 Equipment. The equipment shall be according to Article 406.03.
CONSTRUCTION REQUIREMENTS
482.04 General. For pavement and shoulder resurfacing projects, HMA
binder and surface course mixtures the same as that specified for the mainline pavement may be used in lieu of HMA shoulder mixture for the resurfacing of shoulders, at the option of the Contractor. For the construction of shoulder strips for pavement resurfacing, HMA binder and surface course mixtures the same as that specified for the mainline pavement shall be used. HMA shoulders shall not be placed on frozen or muddy subgrade. Whenever HMA shoulders are constructed adjacent to a pavement constructed on an improved subgrade and additional material is needed to extend the improved subgrade to the bottom of the HMA shoulder, the additional material shall be subbase granular material, Type C, according to Section 311.
482.05 Placing and Compacting. HMA shoulders shall be placed and
compacted according to Article 407.06, except the following.
a.When the shoulder width is 8 ft (2.4 m) or greater, the top lift shall be placed with a spreading and finishing machine. Hot-Mix Asphalt Shoulders Art. 482.06
b.All other lifts shall be placed with a mechanical spreader approved by the Engineer. The machine shall be operated on the mainline pavement. When the mainline HMA binder and surface course mixture option is used on resurfacing projects, shoulder resurfacing widths of 6 ft (1.8 m) or less may be placed simultaneously with the adjacent traffic lane for both the binder and surface courses. The specified density, thickness and cross slope of the pavement and shoulder shall be met. The paver shall operate with both tracks/drive wheels on the traffic lane. Shoulder resurfacing greater than 6 ft (1.8 m) in width shall be placed in a separate operation. The HMA binder course portion of shoulder strips constructed simultaneously with pavement resurfacing may be constructed in one or two lifts. If the plans call for the pavement to be resurfaced with HMA surface course only, the entire shoulder strip may be constructed with surface course, except that the portion normally constructed with HMA binder course shall be placed and compacted separately.
482.06 Tolerance in Thickness. The shoulder shall be constructed to the
thickness shown on the plans. When the contract includes square yards (square meters) as the unit of measurement for HMA shoulder, thickness determinations shall be made according to Article 407.10(b)(3) and the following.
a.Length of the Units. The length of a unit shall be a continuous strip of shoulder 2,500 ft (750 m) long.
b.Width of the Units. The width of the unit shall be the full width of the shoulder.
c.Thickness Deficient by More than Ten Percent. When a core shows the shoulder to be deficient by more than ten percent of plan thickness, additional cores shall be taken on each side of the deficient core, at stations selected by the Contractor and offsets selected by the Engineer, to determine the limits of the deficient shoulder. No core shall be located within 5 ft (1.5 m) of a previous core obtained for thickness determination. The first acceptable core obtained on each side of a deficient core will be used to determine the length of the deficient shoulder. An acceptable core is a core with a thickness of at least 90 percent of plan thickness. The area of deficient shoulder will be defined using the length between two acceptable cores and the full width of the unit. The area of deficient shoulder shall be brought to specified thickness by the addition of the applicable mixture, at no additional cost to the Department and subject to the lift thickness requirements of Article 312.05, or by removal and replacement with a new mixture. However, the surface elevation of the completed shoulder shall not exceed by more than 1/8 in. (3 mm) the surface elevation of the adjacent pavement. When requested in writing by the Contractor, the Engineer may permit in writing such thin shoulder to remain in place. When an area of thin shoulder is left in place, and no additional lift(s) are placed, no payment will be made for the thin shoulder. In addition, an amount equal to two times the contract unit price of the shoulder will be deducted from the compensation due the Contractor. Art. 482.06 Hot-Mix Asphalt Shoulders When an area of deficient shoulder is removed and replaced, or additional lifts are placed, the corrected pavement shall be retested for thickness.
d.Right of Discovery. When the Engineer has reason to believe any core location does not accurately represent the true conditions of the work, he/she may order additional cores. When the additional cores, ordered by the Engineer, show the shoulder to be at least 90 percent of plan thickness, the additional cores will be paid for according to Article 109.04. When the additional core shows the shoulder to be less than 90 percent of plan thickness, the procedure in (c) above shall be followed.
482.07 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. When HMA shoulders are constructed along the edges of the completed pavement structure, HMA shoulders will be measured for payment in place and the area computed in square yards (square meters). The width for measurement will be from the edge of the pavement to the top edge of the HMA shoulder as shown on the plans or as directed by the Engineer. On pavement and shoulder resurfacing projects, HMA shoulders will be measured for payment in tons (metric tons) according to Article 406.13, except that the requirement that payment will not be made for any HMA mixture in excess of 103 percent of the quantity specified by the Engineer will not apply. When shoulder resurfacing is placed simultaneously with the adjacent traffic lane or when a HMA wedge is placed simultaneously with the binder course on the traffic lane as specified in Article 406.10, the quantity of HMA shoulders will be measured for payment as specified in Article 406.13. The HMA binder and surface course mixtures used in construction of shoulder strips for pavement resurfacing will be measured for payment in tons (metric tons) as specified in Article 406.13, except that the thickness of surface course will be limited to that specified for the adjacent resurfacing. Surface course used in excess of this amount will be measured for payment as binder course. Subbase granular material Type C will be measured for payment according to
Article 311 — 08.
482.08 Basis of Payment. When HMA shoulders are constructed along the
edges of the completed pavement structure, this work will be paid for at the contract unit price per square yard (square meter) for HOT-MIX ASPHALT SHOULDERS of the thickness specified. The specified thickness shall be the thickness shown on the plans at the edge of the pavement. Subbase granular material Type C will be paid for according to Article 311.09. Portland Cement Concrete Shoulders Art. 483.05 On pavement and shoulder resurfacing projects, the shoulder resurfacing will be paid for at the contract unit price per ton (metric ton) for HOT-MIX ASPHALT SHOULDERS. When the work is performed under QCP criteria, the pay adjustments in
Article 406 — 14(a) shall apply.
The construction of shoulder strips for resurfacing pavements will be paid for as hot-mix asphalt binder or surface course, according to Section 406. SECTION 483. PORTLAND CEMENT CONCRETE SHOULDERS
483.01 Description. This work shall consist of constructing portland cement
concrete shoulders on a prepared subgrade or subbase.
483.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Portland Cement Concrete ..................................................................... 1020
b.Tie Bars ............................................................................................. 1006.10
c.Poured Joint Sealers .............................................................................. 1050
d.Protective Coat .................................................................................. 1023.01
483.03 Equipment. Equipment shall be according to the following.
Item Article/Section
a.Forms ................................................................................................ 1103.05
b.Formless Paver .................................................................................. 1103.16
c.Miscellaneous Equipment .................................................................. 1103.17 CONSTRUCTION REQUIREMENTS
483.04 General. Except for Articles 420.10 and 420.15, portland cement
concrete shoulders shall be constructed according to Articles 420.04 through 420.18, except as modified in Articles 483.05 and 483.06. Whenever concrete shoulders are constructed adjacent to a pavement constructed on an improved subgrade and additional material is needed to extend the improved subgrade to the bottom of the concrete shoulder, the additional material shall be subbase granular material, Type C, according to Section 311.
483.05 Placing and Finishing. The pavement edge at all transverse joints
shall be sealed or caulked to prevent the intrusion of mortar from the shoulder placing operation into the joint. When the slip form method is used, the slip form paving equipment may operate from the adjacent lane or on tracks spanning the shoulder area.
Referenced in this section
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 311–314 of 1,217. View official source ↗