406.01Description
This work shall consist of preparing and treating an existing pavement or concrete surface with asphalt material in accordance with 105.03.
MATERIALS
406.02Materials
The type and grade of asphalt material shall be in accordance with the following: 10
Asphalt Emulsion, SS-1h, AE-NT ............................... 902.01(b) PG Asphalt Binder, PG 64-22 ..................................... 902.01(a)
CONSTRUCTION REQUIREMENTS
406.03Equipment
A distributor in accordance with 409.03(a) shall be used.
406.04Preparation of Surface 20
The existing surface to be treated sha ll be free of foreign materials deemed detrimental by the Engineer. The surface where the asphalt material is applied shall be free of standing water and shall be cleaned of dust, debris and any substances that will prevent adherence.
406.05Application of Asphalt Material
The asphalt material shall be uniformly applied across the entire width of pavement to be overlaid and shall cover a minimum of 95% of the surface. The asphalt 405.09
material shall be given sufficient time to break and set to minimize tracking from hauling and laydown equipment. Areas of inadequate coverage that create streaking 30 or areas of excessive coverage that create ponding shall be corrected to obtain an even distribution.
The asphalt material application rate shall be based on the existing surface type and shall be as follows:
Surface Type Application Rate*(gal./sq yd) New Asphalt 0.05 to 0.08 Existing Asphalt 0.06 to 0.11 Milled Asphalt 0.06 to 0.12 PCCP 0.05 to 0.08 * The asphalt material shall not be diluted.
406.06Method of Measurement
Asphalt for tack coat will be measured by the ton or by the square yard.
406.07Basis of Payment
The accepted quantities of tack coat will be paid for at the contract unit price per ton or per square yard for asphalt for tack coat, complete in place.
Payment will be made under:
Pay Item Pay Unit Symbol
Asphalt for Tack Coat ............................................................... TON SYS 50
TACK COAT in other states
Get an email when 406 changes
Indiana revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.