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NUTRA-BOND PLUS

TESTING METHOD

For preparing and analyzing pavement sub-grade, sub-base and base course materials containing NUTRA-BOND-PLUS in a materials testing laboratory.

This test method protocol has been developed in response to requests for proper laboratory procedures when testing road base materials treated with NUTRA-BOND-PLUS. It should be noted that no laboratory sample would simulate the actual strength characteristics exhibited in the field with full-scale NUTRA-BOND-PLUS treated base materials. Therefore, is one is to obtain a truly valid approximation of the relative strength of treated material, it is recommended to test NUTRA-BOND-PLUS treated road base by obtaining fully cured samples from actual road beds. Test methods described below will reference the American Society for Testing and Materials (ASTM). Test methods may be found at the ASTM internet site: http://www.astm.org.

Prior to any laboratory testing, a suitable sample must be prepared. It is recommended to prepare a minimum soil/aggregate mix of five (5) gallons (18.9 liters). All (100%) mineral aggregate must be crushed (e.g., cracked rock faces). That portion of aggregate passing the No. 40 sieve should be slightly plastic (0<PI<6) when tested in accordance with ASTM Method D43 I 8-9 Sa. Any humus material and/or other organic material (i.e., roots, moss, leaves, etc.) should be removed from the test material. The dry mineral soil/aggregate material should be uniformly graded with the gradations specified in Table 1, following ASTM Method C136-96a.


TABLE 1 - INITIAL TARGET GRADATIONS

Sieve Size

Ideal Gradation
Percent Passing

Ideal Gradation
Tolerance

1"

100

0

"

85

+/- 4

No.4

62

+/- 4

No.16

48

+/- 4

No.200

18

+/- 4