Attach 7 - Addendum 2 - Repair Airfield Pavement Spalling RVKQ 20-0770 dtd 14 Aug 2025.pdf

DEPARTMENT OF THE AIR FORCE

914TH AIR REFUELING WING

NIAGARA FALLS AIR RESERVE STATION

Addendum #2

Project: RVKQ 20-0770

Repair Airfield Pavement Spalling

This Addendum amends the project Specifications and Drawings dated August 11, 2021

14 August 2025

Description of Modifications

Drawings:

I. Change both JOINT SEALANT DETAIL’s JOINT SEALER callouts on the Repair Airfield Pavement Spalling RVKQ 20-0770 Drawing TAB NO. 23:

From:

BITUMINOUS HOT POURED JOINT SEALER

To:

JET FUEL RESISTANT JOINT SEALER

Specifications:

II. Add the following reference to Specification 32 01 19.61 SEALING OF JOINTS IN RIGID

PAVEMENTS, SECTION 1.2 REFERENCES, ASTM INTERNATION (ASTM):

ASTM D6690 (2021) Standard Specification for Joint and Crack Sealants, Hot Applied, for Concrete and Asphalt Pavements

III. Delete the following text from the Specification 32 01 19.61 SEALING OF JOINTS IN RIGID

PAVEMENTS, PART 2 PRODUCTS, SECTION 2.1 SEALANTS:

ADDENDUM #2 – RVKQ 20-0792

13 August 2025 Page 2 of 2 silicone

IV. Add the following paragraph to the Specification 32 01 19.61 SEALING OF JOINTS IN

RIGID PAVEMENTS:

3.1.2.2 HOT-POURED SEALING EQUIPMENT

Use mobile unit applicators equipped with a double-boiler, agitator-type kettle with an oil medium in the outer space for heat transfer for heating and installing ASTM D6690 joint sealant materials; a direct-connected pressure-type extruding device with a nozzle shaped for inserting in the joint to be filled; positive temperature devices for controlling the temperature of the transfer oil and sealant; and a recording thermometer for indicating the temperature of the sealant. Use an applicator unit designed so that the sealant circulates through the delivery hose and returns to the inner kettle when not in use.