2308.01 DESCRIPTION.
The work shall consist of applying diluted asphalt emulsion to the shoulder surface by means of a bituminous distributor.

2308.02 MATERIALS.
Asphalt emulsion grade CSS-1 or SS-1, meeting requirements of Section 4140, shall be used unless otherwise directed by the Engineer.

2308.03 EQUIPMENT.
The equipment shall meet the requirements of Section 2001.

2308.04 CLEANING.
At the time the emulsion fog seal is placed, the shoulder surface shall be cleaned of foreign material.

2308.05 DILUTION.
The asphalt emulsion shall be diluted with water prior to application to the shoulders. The dilution rate is one part of asphalt emulsion to two parts of water. The Engineer will require documentation that the dilution is done properly.

2308.06 APPLICATION.
The diluted asphalt emulsion shall be uniformly applied at the rate of 0.20 gallon per square yard (0.9 L/m² )of shoulder surface. The application rate may be reduced as directed by the Engineer.

Safety and convenience to the public without soiling their vehicles shall be a controlling factor.

Application widths shall be such that the entire shoulder surface is covered in one application.

Care shall be taken that asphalt emulsion is not applied to bridge decks, PCC gore areas, or the adjacent paved surface and painted edge lines. Edge lines obliterated by this operation shall be replaced without cost to the Contracting Authority.

2308.07 LIMITATIONS.
Asphalt emulsion shall not be placed on a damp or wet surface except as approved by the Engineer. Work will not be allowed on Sundays or holidays in accordance with Article 1108.03.

Asphalt emulsion shall be applied during weather conditions under which satisfactory application can be obtained. Asphalt emulsion shall not be applied when either the pavement temperature or the air temperature is below 60°F (16°C). Asphalt emulsion shall not be placed after August 31 without permission from the Engineer.

A sand dam or other approved means may be necessary to prevent emulsion from running on to the pavement in areas of superelevated curves.

2308.08 GENERAL.
The asphalt emulsion as applied shall have an appearance satisfactory to the Engineer. Dilution rate and application rate may need to be adjusted to accomplish desired results.

2308.09 TRAFFIC CONTROL.
Traffic control shall be in accordance with Article 1107.09 and the appropriate traffic control detail for the highway on which this sealing is to be done.

2308.10 METHOD OF MEASUREMENT.
The items involved in construction of Bituminous Fog Seal (Shoulders) will be measured as follows:

A. Asphalt Emulsion for Fog Seal.
Undiluted Asphalt Emulsion will be measured in gallons (liters) as provided in Article 2307.06, B.

B. Sand.
Sand will not be measured for payment.

C. Traffic Control.
Traffic Control shall be lump sum for the contract.

2308.11 BASIS OF PAYMENT.
For the quantity of items involved in construction of Bituminous Fog Seal (Shoulders), the Contractor will be paid as follows:

A. Asphalt Emulsion for Fog Seal.
The Contractor will be paid the contract unit price per gallon (liter) for undiluted Asphalt Emulsion for Fog Seal that is mixed and used on the project. Diluted asphalt emulsion that is delivered to the job site but not applied to the roadway surface will not be considered for payment.

This payment shall be full compensation for cleaning the shoulder surface, furnishing and applying the diluted asphalt emulsion, mixing water, furnishing and applying sand cover, and protecting the adjacent pavement and edge lines, including special protection and dams in areas of superelevated curves.

B. Traffic Control.
For Traffic Control, the Contractor will be paid the lump sum contract price. This payment shall be full compensation for furnishing all signs, barricades, flaggers, and other traffic control devices required for this work.