- 870 - SECTION 1034 -- SOIL BINDER
1034.01 Description
1.Soil binder shall consist of fi ne particles of sand, silt, and clay approved by the Engineer.
1034.02 Material Characteristics
1.Soil binder shall have at least 85% passing the No. 200 (75 m) sieve, and shall have a plasticity in dex not less than 8 nor greater than 25.
1034.03 Sampling and Testing Procedures
1.Sampling and testing shall be performed in accordance with the methods listed below: Sampling ........................... AASHTO T 2, AASHTO T 248 Preparatio n ........................ AASHTO T 87 Sieve Analysis ................... AASHTO T 27 Plasticity I ndex .................. AASHTO T 89, AASHTO T 90
1034.04 Acceptance Requirements
1.Soil binder will be accepted based on the requirements of this Section and sampling and testing requirements in accordance with the Department’s Materials Sampling Guide . - 871 - SECTION 1035 -- CORRUGATED METAL PIPE
1035.01 Description
1.Corrugated metal pipe, pipe-arches, and underdrains shall be zinc- coated (galvanized) steel, aluminu m-coated steel, or Grade 10/10 polymer pre-coated steel.
1035.02 Material Characteristics
1.Corrugated metal pipe, pipe-arches, and underdrains shall conform to the applicable requirements of AASHTO M 36 or ASTM A 929.
2.Zinc-coated steel or aluminu m-coated steel materials shall not be mixed in any installation.
3.Bolts, nuts, washers and al l other hardware items used with coupling bands sha ll be galvanized in accordance with AASHTO M 232 (ASTM A 153) or mechanically galvanized in accordance with AASHTO M 298 (ASTM B 695) Class 50.
4.In the repair of damaged c oating on elbows, pipe and special fittings which are fabricated by methods which damage their coating, both the interior and exterior surfaces of the damaged area shall be thoroughly cleaned and all traces of welding flux and weld spatter shall be removed. The cleaned area shall then be painted with zinc-rich paint at the fabricating plant, in accordance with Section 1061.
5.The mass of metallic coating may be determined by the use of magnetic thickness gages in accordance with ASTM E 376. In cases of dispute, additional samples shall be tested in accordance with AASHTO T 65 or AASHTO T 213, as applicable.
6.Unless otherwise specified in the contract, the minimum sheet thickness for metal culverts shall be as follows: Table 1035.01 Nominal Diamete r Inches (mm) Sheet Thickness Inches (mm) 8 thru 24 (200 – 600) 0.057 (1.45) 30 thru 36 (760 – 900) 0.072 (1.83) 42 thru 54 (1060 –1370) 0.101 (2.57) 60 thru 72 (1520 – 1830) 0.129 (3.28) Over 72 (1830) 0.159 (4.04)
7.Coupling or connecting bands with projections (often referred to as dimple bands) are not acceptable.
1035.03 Acceptance Requirements
1.Corrugated metal pipe will be accepted based on the requirements of this Section and sampling and testing requirements as described in the Department’s Materials Sampling Guide.
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 904–904 of 1,048.