Experimental investigation and constitutive modeling of polymer concrete and sand interface

Toufigh, V ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.1061/(ASCE)GM.1943-5622.0000695
  3. Publisher: American Society of Civil Engineers (ASCE) , 2017
  4. Abstract:
  5. In this investigation, the behavior of the interface between polymer concrete and sand was studied. For this purpose, two sets of interface direct shear tests (over 40 tests) were conducted on the polymer concrete and sand interface. Moreover, two sets of tests (over 30 tests) were performed on the cement concrete and sand interface for comparison. Based on the experiments, the shear stress versus tangential displacement curves at different normal stresses, the interface friction angles, and the adhesion were obtained for each interface. Then, three different constitutive models proposed for interfaces were used to predict the observed response. Finally, after a quantitative comparison of the constitutivemodels, a pile in tension was modeled using the most accurate model for its interfacial behavior. The results of the proposed model were in excellent accordance with experimental data, and the results of pile modeling in tension showed the applicability of the model and obtained parameters. © 2016 American Society of Civil Engineers
  6. Keywords:
  7. Constitutive models ; Disturbed state concept (DSC) modeling ; Interface testing ; Polymer concrete ; Soil-structure interface ; Concrete testing ; Concretes ; Piles ; Polymers ; Sand ; Shear stress ; Soil structure interactions ; Soil testing ; Disturbed state concept ; Experimental investigations ; Interface friction angle ; Interface testings ; Polymer concretes ; Quantitative comparison ; Soil structure interface ; Tangential displacements ; Interface states ; Concrete ; Experimental study ; Interface ; Numerical model ; Pile ; Polymer ; Sand ; Shear test ; Soil test ; Soil-structure interaction ; Stress analysis
  8. Source: International Journal of Geomechanics ; Volume 17, Issue 1 , 2017 , Pages 1-11 ; 15323641 (ISSN)
  9. URL: https://ascelibrary.org/doi/10.1061/%28ASCE%29GM.1943-5622.0000695