ASTM C117, C136- Sieve Analysis
The ASTM C117 and C136 are standard sieve analysis tests. It is vital to have a sieve analysis done prior to the Perma-Zyme application to ensure that the soil has at least 15% passing the #200 sieve. Soils outside with less than 15% are NOT compatible. It is also ideal to have a variety of other sieve sizes inside the soil, this gives the Perma-Zyme objects to bond to.
ASTM D1557- Proctor Test
The ASTM D1557 (Proctor Test) measures the soil’s optimum moisture content which allows the soil to reach optimum density. This test is important to ensure the likelihood the soil will reach optimum density and will be as strong as possible once fully cured.