Abstract
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, road safety barriers. A universal machine (WDW-200E) 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. Furthermore, 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.
| Translated title of the contribution | Soft pre-stressed PET profiles as reinforcing fibers in structural elements made of concrete |
|---|---|
| Original language | English |
| Pages (from-to) | 162-170 |
| Number of pages | 9 |
| Journal | DYNA (Colombia) |
| Volume | 85 |
| Issue number | 206 |
| DOIs | |
| State | Published - 1 Jul 2018 |
Keywords
- Beams-type
- Concrete
- Fiber matrix
- PET fibers
- PET profiles
- Pre-stress
- Probabilistic model