Soft Pre-stressed PET Profiles as reinforcing fibers in structural elements made of concrete

The inclusion of pre-stressed PET profiles as reinforcing fibers in structural elements is proposed. The PET-profiles are placed in a unidirectional and bidirectional fiber matrix with soft pre-tensioned condition that they could have advantages in structural members made of concrete in some precise...

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Bibliographic Details
Published inDyna (Medellín, Colombia) Vol. 85; no. 206; pp. 162 - 170
Main Authors Márquez-Domínguez, Sergio, Mejía-Sánchez, Edgar, Arenzano-Altaif, Jesús Antonio, Gerson Omar Martínez-Guevara, Tolentino, Dante
Format Journal Article
LanguageEnglish
Portuguese
Published Bogota Universidad Nacional de Colombia 01.07.2018
Subjects
beams
Beams (structural)
beams-type
Concrete
concreto
ENGINEERING, MULTIDISCIPLINARY
fiber matrix
Fibers
fibras de PET
Knots
matriz de fibra
modelo probabilístico
Modulus of rupture
Perfiles de PET
PET fibers
PET profiles
Pre
Pre-stress
probabilistic model
Probabilistic models
Reinforcing fibers
Safety barriers
stress
Structural members
tensados
tipo viga
Traffic accidents & safety
type
Wood
concrete
pre-tensados
tipo viga
beams-type
fibras de PET
concreto
Perfiles de PET
probabilistic model
Pre-stress
matriz de fibra
modelo probabilístico
fiber matrix
PET profiles
PET fibers
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Summary:The inclusion of pre-stressed PET profiles as reinforcing fibers in structural elements is proposed. The PET-profiles are placed in a unidirectional and bidirectional fiber matrix with soft pre-tensioned condition that they could have advantages in structural members made of concrete in some precise applications, for instance, structural support for road safety barriers. A universal machine is used to test PET-profiles with different width, knots and even other conditions. The desired PET profile is chosen and the concrete mixture is designed under the ACI standard guidance. Pre-stressed PET-profiles are included in wood molds shaped in beam-type and subsequently flexural strength is estimated. Finally, experimental tests results are presented for PET-profiles as structural reinforcement of beams made of concrete under pure flexural. Finally, a probabilistic model is used to estimate the PET contribution in terms of exceedance of the rupture modulus.
ISSN:0012-7353
2346-2183
DOI:10.15446/dyna.v85n206.71805