presentation on ustm soil classification
DESCRIPTION
Good Presentation With Visual Graphics incorporationTRANSCRIPT
PRESENTED BY:
SAIM ALI KHAN(2013-CIV-143)
ASTM Classification
Criteria For Fine Grain SoilIf >50% - Sieve 200
L: Low Plasticity
H:High Plasticity
LL< 50
INORGANIC ORGANIC
INORGANIC
PI<4 or plots below A-line
PI > 7 and plots on or
above A-line
4≤PI≤7 and plots on or
above A-line
CL
ML
CL -ML
CL
≥30% plus
No.200
<30% plus
No.200
15%plus
No.200
15-29% plus No.
200
%sand <
%gravel
%sand ≥
%gravel
Lean Clay
%sand≥%
gravel%sand
<% gravel
≥15%gravel
<15% gravel
<15%sand
≥15%sand
Sandy Lean Clay
Lean Clay with
Gravel
Sandy Lean Clay
with Gravel
Gravelly Lean Clay
Gravelly Lean Clay with Sand
Lean clay with Sand
CL-ML
≥30% plus
No.200
<30% plus
No.200
<15%plus
No.200
15-29% plus No.
200
%sand <
%gravel
%sand ≥
%gravel
Silty Clay
%sand≥%
gravel%sand
<% gravel
≥15%gravel
<15% gravel
<15%sand
≥15%sand
Sandy Silty Clay
Silty Clay with
Gravel
Sandy Silty Clay
with Gravel
Gravelly SiltyClay
Gravelly Silty Clay with Sand
Silty Clay with Sand
CL
≥30% plus
No.200
<30% plus
No.200
<15%plus
No.200
15-29% plus No.
200
%sand <
%gravel
%sand ≥
%gravel
Silt
%sand≥%
gravel%sand
<% gravel
≥15%gravel
<15% gravel
<15%sand
≥15%sand
Sandy Silt
Silt with Gravel
Sandy Silt with
Gravel
Gravelly Silt
Gravelly Silt with
Sand
Silt with Sand
LL≥ 50
INORGANIC ORGANIC
INORGANIC
Plots below A-line
Plots on or above A-line CH
MH
CH
≥30% plus
No.200
<30% plus
No.200
15%plus
No.200
15-29% plus No.
200
%sand <
%gravel
%sand ≥
%gravel
Fat Clay
%sand≥%
gravel%sand
<% gravel
≥15%gravel
<15% gravel
<15%sand
≥15%sand
Sandy Fat Clay
Fat Clay with
Gravel
Sandy Fat Clay with
Gravel
Gravelly Fat Clay
Gravelly Fat Clay
with Sand
Fat Clay with Sand
MH
≥30% plus
No.200
<30% plus
No.200
15%plus
No.200
15-29% plus No.
200
%sand <
%gravel
%sand ≥
%gravel
Elastic Silt
%sand≥%
gravel%sand
<% gravel
≥15%gravel
<15% gravel
<15%sand
≥15%sand
Sandy Elastic Silt
Elastic Silt with
Gravel
Sandy Elastic Silt
with Gravel
Gravelly Elastic Silt
Gravelly Elastic Silt with Sand
Elastic Silt with Sand
Presented by M.Ali2013-civ-133
* Unified Soil Classification System (USCS)
Classification of Soil
by (ASTM-D2487-06)
Fined Grained
In-organic Organic
Organic Soil
Low plasticity
Soil
(L.L<50)
High plasticity soil (L.L>50)
Soil• Above A-line = Clay• Below A-line = Silt
Use Suffix
• with when <30% retained on # 200 • -y when 30% retained on #200
Points to be Remembered.
e.g Organic clay with sand e.g Gravely silt or sandy organic clay
A-line
L.L<50
L.L>50
A-Line Graph
Thank You
Any Question??
ASTM
