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All publications of “Kátia Vanessa Bicalho”

2 results

Comparison of the Casagrande and Fall Cone Methods for Liquid Limit Determinations in Different Clay Soils

Letícia Garcia Crevelin ORCID logo , Kátia Vanessa Bicalho ORCID logo

02/Jul/2019

ABSTRACT The liquid limit (LL) is an important parameter for soil classification systems. The use of the cone penetrometer technique for measuring the liquid limit is an attractive alternative method since the percussion method is highly operator dependent. In this article, the importance of specifying the procedure and equipment used to determine the LL of a clay soil is highlighted using LL test results conducted on different clay soils. The results of LL, obtained by the percussion method proposed by […]

USE OF IMAGE ANALYSIS TO DETERMINE THE SHAPE AND TEXTURE OF SANDS

Georgia Serafim Araújo, Kátia Vanessa Bicalho, Fernando Avancini Tristão

01/Jan/2015

The Shape of sand grains plays an important role in evaluation of soil particle size distribution. However, in most sieving techniques it is assumed that grains are spherical and can be described by a single parameter, diameter. Moreover, the subjectivity of the tests used to estimate sand roughness makes it difficult to obtain data that accurately represent reality. The aim of this paper was to study the use of image analysis together with the degree of sphericity and fractal theory […]