§ 11-129. Bituminous surface treatment.

Bituminous surface treatments (chip seals) shall meet the AHTD Standard Specification requirements for bituminous surface treatment, with emphasis on the following items:

(1)

The aggregate shall meet the AHTD requirements.

(2)

The asphalt material and the application temperature shall meet the AHTD requirements for bituminous materials.

(3)

Bituminous surface treatments shall not be placed between the period of October 15 and April 15, nor when the surface temperature is below sixty (60) degrees Fahrenheit. Note the temperature requirement is on the surface and not air temperature. Bituminous surface treatments placed in the early spring or late fall when the ground has cooled, but the air temperature rises above sixty (60) degrees Fahrenheit, have a very poor success rate.

(4)

The surface shall be properly cleaned and all structures protected from the spray.

(5)

Each time the distributor begins an asphalt application, it shall be started on paper, such as wrapping paper, which can be removed leaving a good starting line and eliminate any overlap.

(6)

Unless approved by the County Road Superintendent, the equipment shall meet the AHTD requirements.

(7)

If an asphalt emulsion is used, it is very critical to have the aggregate loaded and ready to spread prior to applying the emulsion. The spreading of the aggregate should follow very closely behind the distributor.

(8)

The aggregate shall be rolled with a pneumatic tired roller before the asphalt has chilled or the emulsified asphalt breaks.

(9)

The surface shall be maintained for up to four (4) days, as directed by the engineer.

(10)

If a succeeding application is required, it shall follow the same construction procedures as the first. It shall not be placed until the preceding application has cured and the rock properly set.

(Ord. No. 91-9, Art. 1, § 4.10, 4-11-91; Ord. No. 99-32, Art. 1, 7-8-99)