SciELO - Scientific Electronic Library Online

 
vol.21 issue37Accessibility: fundamental for implementation of transportation infrastructure elementAssessment of the area of influence of San José-Sabanilla-La Campiña: Public transportation trunk corridor Applying the transit oriented development methodology author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


Infraestructura Vial

On-line version ISSN 2215-3705Print version ISSN 2215-3705

Abstract

MUNERA MIRANDA, Juan Carlos  and  AGUIAR MOYA PHD., Jose Pablo. Estimation of the resilient modulus for granular materials of Costa Rica. Infraestructura Vial [online]. 2019, vol.21, n.37, pp.12-20. ISSN 2215-3705.  http://dx.doi.org/10.15517/iv.v21i37.42614.

The resilient modulus is a measure of the ability of a material to store or absorb energy without experiencing permanent deformation. This is determined by triaxial tests of repeated load and is an important parameter in the analysis and design of flexible pavements. With its value it is possible to predict the mechanical response of the pavement as stresses, deformations and deflections. However, obtaining it is expensive for the equipment involved and not all material laboratories have the test. Because of this, pavement designers use correlations to approximate a resilient modulus value, which generally differs considerably from that obtained with the test. The following research aims to estimate a universal model of a resilient modulus for granular materials that considers variables related to stress states and the basic characteristics of the materials. For this, a linear regression model was generated using ordinary least squares with data from at least 13 different granular materials. The model was validated by statistical indicators obtaining an acceptable goodness of fit.

Keywords : Resilient modulus; Granular materials; Regression.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )