Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Variability and Scale-Dependency of Recycled Rubber Tire Materials
This paper presents a variability study of several engineering properties of recycled rubber tire pieces based on a comprehensive literature survey of experimental test programs. The unit weight, cohesion, internal friction angle, Young's modulus of elasticity and Poisson's ratio were evaluated and compared to engineering property variability of natural soils. In addition, a series of regression and residual analyses were performed to investigate the presence and significance of scale-dependency on the engineering properties of rubber tire pieces. The results of the variability analysis show that unit weight and Poisson's ratio have the lowest values of coefficient of variation whereas the shear strength parameters and the elastic modulus have the highest. From the regression analysis, cohesion and Young's modulus showed the greatest sensitivity to changes in maximum tire particle size. However, these results are based on statistics that have limitations when used for interpretive purposes. A non-statistical investigation based on geotechnical theory was used to further evaluate the scale-dependency of the shear strength parameters. Using Mohr-Coulomb failure theory and assuming that the cohesion component of strength is justifiably neglected, the analysis showed a scale-independent relationship which is consistent with the statistical findings for internal friction angle.
Variability and Scale-Dependency of Recycled Rubber Tire Materials
This paper presents a variability study of several engineering properties of recycled rubber tire pieces based on a comprehensive literature survey of experimental test programs. The unit weight, cohesion, internal friction angle, Young's modulus of elasticity and Poisson's ratio were evaluated and compared to engineering property variability of natural soils. In addition, a series of regression and residual analyses were performed to investigate the presence and significance of scale-dependency on the engineering properties of rubber tire pieces. The results of the variability analysis show that unit weight and Poisson's ratio have the lowest values of coefficient of variation whereas the shear strength parameters and the elastic modulus have the highest. From the regression analysis, cohesion and Young's modulus showed the greatest sensitivity to changes in maximum tire particle size. However, these results are based on statistics that have limitations when used for interpretive purposes. A non-statistical investigation based on geotechnical theory was used to further evaluate the scale-dependency of the shear strength parameters. Using Mohr-Coulomb failure theory and assuming that the cohesion component of strength is justifiably neglected, the analysis showed a scale-independent relationship which is consistent with the statistical findings for internal friction angle.
Variability and Scale-Dependency of Recycled Rubber Tire Materials
Strenk, Patrick M. (Autor:in) / Wartman, Joseph (Autor:in) / Grubb, Dennis G. (Autor:in) / Humphrey, Dana N. (Autor:in)
Recycled Materials in Geotechnics Sessions at ASCE Civil Engineering Conference and Exposition 2004 ; 2004 ; Baltimore, Maryland, United States
Recycled Materials in Geotechnics ; 105-122
01.10.2004
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Recycling , Tires , Material properties , Construction materials , Scale ratio , Sludge , Asphalts , Fly ash , Dredging
Variability and Scale-Dependency of Recycled Rubber Tire Materials
| British Library Conference Proceedings | 2005
Variability and Scale-Dependency of Tire-Derived Aggregate
| Online Contents | 2007
Variability and Scale-Dependency of Tire-Derived Aggregate
| British Library Online Contents | 2007
Recycled tire rubber in asphalt pavements
TIBKAT | 1992