713_05_TOPSOIL_MDT_Specification.pdf
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- Master BPA - TopSoil Federal contract opportunity
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- 0040429499
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| Terms_and_Conditions.pdf |
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2014 EDITION MISCELLANEOUS MATERIALS – 713
713.05 TOPSOIL
Furnish topsoil meeting Table 713-4 gradation requirements.
TABLE 713-4
TOPSOIL GRADATION REQUIREMENTS
Fraction Particle Size (mm) Max. % Of Soil
(-10 Mesh) (2mm) Fraction
Sand 0.05-2.0 85 Silt 0.005-0.05 80 Clay less than 0.005 50 Gravel larger than 2.0 max. % of total sample1
Notes:
1. A maximum of 20% is allowable. Any quantity exceeding 10% is not included in the basis for payment. Gradation is tested in accordance with AASHTO T 88.
Meet the following:
1. Soil pH between 5.5 and 8.0 or up to 8.5 if the exchangeable sodium is less than 10%;
2. Soil conductivity factor less than 4; and
3. Organic content between 1% and 20%.
Topsoil is sampled and tested in accordance with MT 412.
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