TY - JOUR
AU - Lugo López, M. A.
AU - Pérez Escolar, Raúl
PY - 1968/10/01
Y2 - 2023/05/29
TI - Functional Relationships Between the Content of Particles Smaller than 0.05 mm. and 0.002 mm. in Size, and the Plasticity Index of Soils
JF - The Journal of Agriculture of the University of Puerto Rico
JA - JAUPR
VL - 52
IS - 4
SE - Articles
DO - 10.46429/jaupr.v52i4.11492
UR - https://revistas.upr.edu/index.php/jaupr/article/view/11492
SP - 343-350
AB - <p>A mathematical approach is presented herein to determine the plasticity index of soils on the basis of the percentage of particles smaller than 0.05 mm in size. The particle-size distribution can be determined easily and quickly, and then, with a few calculations, the plasticity index can be estimated with fair degree of precision. The laboratory determination of plasticity index requires more laborious work. The equation developed is exponential, as follows:</p><p>Plasticity index = —0.052394 + 3.1538<em>e</em><sup>0.029284X</sup>, where <em>e</em>= 2.71828 and X is the percentage of particles smaller than 0.05 mm. in size.</p><p>The correlation coefficient obtained was on the order of 0.92. On the basis of the percentage of particles smaller than 0.05 mm., about 85 percent of the variability of the plasticity index values was explained. The plasticity index is one of the more useful engineering properties of soils.</p>
ER -