Traffic survey and pavement design determining, presentation of calculation of earthwork for the proposed road section at 30m or suitable intervals & 4 days soaked CBR of existing soil strata with plastic limit
and liquid limit & SUBMIT ALL THE reports & dawings in 6(six) copies along with D.
The associated laboratory tests were performed following the procedures outlined by the Technical Specifications of INVIAS (Colombian National Institute of Roads): INV E-125-07 (corresponding to ASTM D 4318-00) to determine liquid limit, INV E-126-07 (corresponding to ASTM D 4318-00) to determine plastic limit
, and INV E-122-07 (corresponding to ASTM D 2216-98) to determine water content.
The PI is the difference between the liquid limit and the plastic limit
of the soil and is a convenient representation of its plasticity characteristics.
The plastic limit
and plasticity index of the soil samples was obtained using ASTM D4318-10 as the basis of the study.
The plastic limit
and plasticity index were significantly high and the optimum moisture content was below plastic limit
Soil plastic limit
has been reported as a promising predictor of SWRC estimation because of the strong correlation between plastic limit
and SWRC as well as with other soil properties (e.
state of the hollow sphere model with non-associated Drucker-Prager material under isotropic loading, Computational Materials Science 62: 210-215.
Previous studies showed that the best properties of the maturated muds in relation to Liquid Limit, Plastic Limit
, Plastic Index, Cationic Exchange Capacity, Specific surface, cooling kinetics, agglomeration and cementation were achieved between the 3 and 4 month of the beginning of the process.
The major geotechnical tests performed are density, moisture content, specific gravity, permeability, liquid limit, plastic limit
, standard compaction test, direct shear test and grain size analysis.
The permeability of soils depends upon the particle size, void ratio, soil structure, compaction, plasticity characteristics of soils (liquid limit, Plastic limit
and shrinkage limit etc.
2001) reported that soil adhesion was increased as the proportion of clay particles in the soil increased and was highest when the soil moisture content was between plastic limit
and liquid limit.
This value is quite far from the plastic limit
which is approximately 30%.