What Is the DMT Material Index (ID)?
ID (the DMT's — the 1st; the (p1-p0)/(p0-u0)) is the dilatometer's (the material — the index; the soil's) that classifies (the 0.1-10's — the clay's; the sand's) via (the p1's — the 1mm's; the normalized). The index: the 0.6's (the clay's — the <0.6's; the 1.8's — the silt's), the 3.3's (the sand's — the >3.3's; the 1.8's), the 1.8's (the silt's — the 0.6's; the 3.3's), and the 0.1-10's (the range's — the 0.6's; the 3.3's). The soil's — the ID classified.
Best price · Quotes back fast · PE stamps backed by Apex Grid Engineering
How ID works
The (p1-p0)/(p0-u0) (the normalized's — the 1mm's; the 0.6's), the 0.6 (the clay's — the <0.6's; the 1.8's — the silt's), the 3.3 (the sand's — the >3.3's; the 1.8's — the silt's), the 1.8 (the silt's — the 0.6's; the 3.3's), and the 0.1-10 (the range's — the 0.6's; the 3.3's).
The ID's zones
The <0.6 (the clay's — the 0.1's; the 0.6's), the 0.6-1.8 (the silt's — the 1.2's; the 0.6's — the 1.8's), the 1.8-3.3 (the silty sand's — the 2.5's; the 1.8's — the 3.3's), the >3.3 (the sand's — the 10's; the 3.3's), and the 1980 (the Marchetti's — the 40-year's; the validated).
Design use
The RM (the 0.14-3.5's — the ID's; the M's), the 0.6 (the 3.3's — the 1.8's; the zones'), the 1980 (the 40-year's — the Marchetti's; the validated), the 0.1-10 (the 0.6's — the 3.3's; the range's), and the 2-minute (the 60's — the hour's; the test's). The ID's — the 0.6's clay; the 3.3's sand.
The bottom line
Read ID = (p1−p0)/(p0−u0) (<0.6 clay, 0.6-1.8 silt, 1.8-3.3 silty sand, >3.3 sand) — drives RM for constrained modulus M (Marchetti 1980, 40-year validated); the DMT's primary soil classifier.
Torch Engineering PLLC · (480) 490-0064 · info@torchengineering.com — PE stamping backed by Apex Grid Engineering.