- 967 - SECTION 1076 -- WO OD PRESERVATIVES
1076.01 Description
1.Creosote to be used as a wood preservative shall be a distillate derived entirely from tar produced by t he carbonization of bituminous coal.
2.Pentachlorophenol solution in petroleum for use as a wood preservative shall consist of 5% pure pentachlorophenol in a suitable petroleum solvent.
3.Waterborne preservatives that are approved for specific applications defined in this Section are:
a.ACA-Ammoniacal copper arsenate waterborne preservative. b. CCA-Chromated copper arsenate waterborne preservative. c. ACZA-Ammonical copper zinc arsenate waterborne preservative.
4.Copper naphthenate solution in petroleum for use as a wood preservative shall consist of 1% copper metal by weight in a suitable petroleum solvent.
1076.02 Material Characteristics
1.Creosote, pentac hlorophenol, ammoniacal copper arsenate, chromated copper arsenate, copper naphthenate, and ammoniacal copper zinc arsenate shall conform to the requirements of AASHTO M 133.
1076.03 Acceptance Requirements
1.Creosote shall be sampled and tested in accordance with AASHTO T 60.
2.Pentachorophenol shall be analyzed in accordance with ASTM D 1274.
3.Ammoniacal copper arsenate sha ll be analyzed in accordance with ASTM D 1326.
4.Chromated copper arsenate shall be analyzed in accordance with ASTM D 1628.
5.Ammoniacal copper zinc ars enate shall be analyzed in accordance with AWPA A2.
6.Copper naphthenate shall be analyzed in accordance with AWPA A5. - 968 - SECTION 1077 -- PAINTS AND PROTECTIVE COATINGS
1077.01 Description
1.The paint color shall be as specified in the contract.
1077.02 Material Characteristics
1.All paints except the 2-compone nt top coats and primers shall be furnished mixed and ready to use. When applied by approved methods, they shall show good covering and leveling qualities without running, sagging, streaking, or pigment floating.
2.Mixed paints, pastes, and paint components shall be of a smooth and uniform consistency and show no evidence of caking, thickening, livering, hardening, or ot her deleterious properties. They shall be free from skins and other foreign material. All mixed paints and paint components shall be capable of being broken up with a paddle and mixed to a smooth, uniform consistency. They shall not curdle, gel, or show any other objectionable properties.
3.When it is specified that the paint shall be tint ed, the tinting material shall be thoroughly and uniformly incorporated with the paint to form a uniform and even shade.
4.All paints shall be air-drying and shall dry to a smooth finish, free from grit, seeds, or other surface impe rfections. They shall not show undue change in sunlight or show appreciabl e discoloration with age. The dry-film shall show satisfactory adhesion to the metal surface and satisfactory intercoat and system adhesion.
5.All paints shall be packed for shipment in strong substantial containers. Two-component top coat and primer components shall be packaged separately or in double-com partment containers. The lids of the containers shall be of such design that they will exclude air and withstand considerable handling without becoming dislodged. Each container shall be plainly labeled. The label shall show the name of the manufacturer, the type of material, the date of manufacture, and instructions for use.
6.The Department reserves the right to sample all shipments of paint and to withhold acceptance of the paint until an analysis shows the paint meets the specified requireme nts. Paint material or paint systems that do not meet the specified requ irements shall be rejected.
7.The paints and paint material shall be tested as necessary.
1077.03 Acceptance Requirements
1.The paint materials and paint systems authorized for use shall be on the Department’s Appr oved Products List.
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 1001–1001 of 1,048.