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...
Saved in:
Published in | Dyna (Medellín, Colombia) Vol. 85; no. 206; pp. 162 - 170 |
---|---|
Main Authors | , , , , |
Format | Journal Article |
Language | English Portuguese |
Published |
Bogota
Universidad Nacional de Colombia
01.07.2018
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
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 |