TY - JOUR
T1 - Soft pre-stressed PET profiles as reinforcing fibers in structural elements made of concrete
AU - Márquez-Domínguez, Sergio
AU - Mejía-Sánchez, Edgar
AU - Arenzano-Altaif, Jesús Antonio
AU - Martínez-Guevara, Gerson Omar
AU - Tolentino, Dante
N1 - Publisher Copyright:
© The author; licensee Universidad Nacional de Colombia.
PY - 2018/7/1
Y1 - 2018/7/1
N2 - 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.
AB - 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.
KW - Beams-type
KW - Concrete
KW - Fiber matrix
KW - PET fibers
KW - PET profiles
KW - Pre-stress
KW - Probabilistic model
UR - http://www.scopus.com/inward/record.url?scp=85060916062&partnerID=8YFLogxK
U2 - 10.15446/dyna.v85n206.71805
DO - 10.15446/dyna.v85n206.71805
M3 - Artículo
SN - 0012-7353
VL - 85
SP - 162
EP - 170
JO - DYNA (Colombia)
JF - DYNA (Colombia)
IS - 206
ER -