‘ Technical Specifications IFB0660-040617
2017 Pavement Preservation
Revised per Addendum #1
Rolling
If required by the Engineer, specified areas shall be rolled by a self-propelled, 5 to10 ton
pneumatic roller with a tire pressure of 50 PSI and equipped with a water spray system.
H. QUALITY CONTROL
Materials
The contractor will permit the Engineer to take samples of the aggregate and asphalt emulsion to
be used in the project at the Engineer’s discretion. Gradation and sand equivalency tests may be
run on the aggregate, and residual asphalt content test run on the emulsion. Test results will be
compared to specifications. Tests will be run by a qualified laboratory at the expense of the
Owner. The Owner must notify the contractor immediately if any test fails to meet the
specifications.
Micro-Surfacing Mixture
Samples of the mixture should be taken daily and may be taken directly from the mixing unit(s).
Consistency and residual asphalt content tests may be made on the samples and compared to the
specifications. Tests will be run by a qualified laboratory at the expense of the Owner. The
Owner must notify the contractor immediately if any test fails to meet specifications.
The Engineer may use the recorder and measuring facilities of the unit to determine application
rates, asphalt emulsion content, mineral and field control additives, and water.
Non-Compliance
If any two successive tests fail on the stockpile material, the job shall be stopped. It is the
responsibility of the contractor, at his own expense, to prove to the Engineer that the conditions
have been corrected. If any two successive tests on the mix from the same machine fail, the use
of the machine shall be suspended. It will be the responsibility of the contractor, at his own
expense, to prove to the Engineer that the problems have been corrected and that the machine is
working properly.
I. MEASUREMENT AND PAYMENT
Micro-surfacing will be paid by the square yard (SY) complete in place as measured in the field
to the nearest 0.1 SY. Payment for micro-surfacing includes full compensation for material,
labor, transportation, and equipment necessary to complete this portion of the Bid Schedule. A
price adjustment for liquid asphalt is provided in this contract as outlined in Item 900 Liquid
Asphalt Adjustment. No payment will be made for materials delivered but not placed.
