Português
Models for estimating the optimum moisture and maximum dry density for fine soils
DOI:
https://doi.org/10.5216/reec.v15i1.50204Abstract
ABSTRACT: The design of slopes, road pavements, liners, tunnels, landfills among other civil applications requires the knowledge of the behavior of the soils through their physical properties. Soils may exhibit distinct behavior due to mass variability and the sampling process. The optimum moisture content (wot) and maximum dry specific (gdmax.) are fundamental physical properties in the analysis of compacted soil behavior and can be influenced by the fraction of gravel, sand fraction, fines fraction and limits liquidity and soil plasticity. For the feasibility of basic projects it may be necessary to resort to empirical formulations in which their reliability limits are known. The objective of this research was to investigate the accuracy of the estimation of the optimum moisture content and the maximum dry specific by means of the standard soil characterization tests with the aid of analysis of variance of regression models. Thus, data were selected from 250 samples of clayey soils from different regions of the word. The results of the multilinear regression models of the clayey soils investigated were considered expressive by ANOVA, presenting values of the coefficient of determination adjusted for wot and gdmax. equal to 0,741 and 0,639, respectively. Regarding the physical properties, only the liquidity limit was not significant in the estimation of gdmax. The proposed empirical relationships are able to give a reasonably good prediction on the optimum moisture content (wot) and maximum dry specific (gdmax.) for evaluate the compacted soil behavior.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Autores que publicam nesta revista concordam com os seguintes termos: Autores mantém os direitos autorais e concedem à revista o direito de primeira publicação, com o trabalho simultaneamente licenciado sob a Licença Creative Commons Attribution que permite o compartilhamento do trabalho com reconhecimento da autoria e publicação inicial nesta revista.