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Prediction Model of Deflections in PET Fiber Reinforced Concrete Beams

Published online by Cambridge University Press:  31 July 2014

F. J. Baldenebro-Lopez ,
J. H. Castorena-Gonzalez ,
J. A. Baldenebro-Lopez ,
J.I. Velazquez-Dimas ,
J. E. Ledezma-Sillas ,
R. Martinez-Sanchez  and
J. M. Herrera-Ramirez
F. J. Baldenebro-Lopez*
Affiliation:
Centro de Investigación en Materiales Avanzados (CIMAV), Chihuahua, Chih., México Facultad de Ingeniería Mochis, Universidad Autónoma de Sinaloa, Los Mochis, Sinaloa, México
J. H. Castorena-Gonzalez
Affiliation:
Facultad de Ingeniería Mochis, Universidad Autónoma de Sinaloa, Los Mochis, Sinaloa, México
J. A. Baldenebro-Lopez
Affiliation:
Facultad de Ingeniería Mochis, Universidad Autónoma de Sinaloa, Los Mochis, Sinaloa, México
J.I. Velazquez-Dimas
Affiliation:
Facultad de Ingeniería, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
J. E. Ledezma-Sillas
Affiliation:
Centro de Investigación en Materiales Avanzados (CIMAV), Chihuahua, Chih., México
R. Martinez-Sanchez
Affiliation:
Centro de Investigación en Materiales Avanzados (CIMAV), Chihuahua, Chih., México
J. M. Herrera-Ramirez
Affiliation:
Centro de Investigación en Materiales Avanzados (CIMAV), Chihuahua, Chih., México
*
*Email: [email protected]
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Abstract

The increasing use of polymeric reinforcements in concrete structures requires either the development of a new design theory or the adaptation of current designs considering the engineering properties of this type of materials. In this work a method for calculating the deflections of reinforced concrete elements is proposed, which can be used in predicting the flexural behavior of longitudinally reinforced concrete with PET strips in amounts up to 1%. The model theory assumes that concrete has a tensile load capacity different to zero, characterized by a uniaxial tensile stress-strain diagram. A series of tests were conducted to corroborate the validity of the suggested method, showing that the theory also correctly predicts the creep deformation post-cracking. The deflection results of reinforced concrete with recycled PET strips are presented. The tests are carried out by a simple beam with center-point loading, using three different amounts of reinforcement and comparing the experimental results with the theoretical results of the proposed model.

Keywords

polymerstrengthstructural
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1611: Symposium 4A – Advanced Structural Materials--2013 , 2014 , pp. 1 - 6
Copyright
Copyright © Materials Research Society 2014 

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References

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