TY - JOUR
T1 - Experimental investigation and modelling of the temperature effects on the tensile behavior of textile reinforced refractory concretes
AU - Rambo, Dimas Alan Strauss
AU - Yao, Yiming
AU - de Andrade Silva, Flávio
AU - Toledo Filho, Romildo Dias
AU - Mobasher, Barzin
N1 - Publisher Copyright:
© 2016 Elsevier Ltd
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The work in hand presents results of an experimental and numerical research on the post-heating residual strength of a basalt textile refractory composite submitted to tensile loading. The tensile tests were performed after a preheating process at temperatures ranging from 25 to 1000 °C. The mechanical performance and cracking mechanisms were discussed and compared to that obtained at room temperature. Image analysis by means of digital image correlation method was used to obtain the evolution of crack width which was subsequently correlated with the stress response for all target temperatures. Scanning electron microscopy was used to investigate the damage processes in the fiber–matrix interfaces after exposure to high temperatures. A finite difference model was used to simulate the tension stiffening behavior of TRC (Textile Reinforced Concrete) systems predicting their crack spacing and stress vs. strain responses. The obtained results indicated that due to the coating decomposition the reliability of basalt TRC can only be guaranteed from room temperature to 150 °C.
AB - The work in hand presents results of an experimental and numerical research on the post-heating residual strength of a basalt textile refractory composite submitted to tensile loading. The tensile tests were performed after a preheating process at temperatures ranging from 25 to 1000 °C. The mechanical performance and cracking mechanisms were discussed and compared to that obtained at room temperature. Image analysis by means of digital image correlation method was used to obtain the evolution of crack width which was subsequently correlated with the stress response for all target temperatures. Scanning electron microscopy was used to investigate the damage processes in the fiber–matrix interfaces after exposure to high temperatures. A finite difference model was used to simulate the tension stiffening behavior of TRC (Textile Reinforced Concrete) systems predicting their crack spacing and stress vs. strain responses. The obtained results indicated that due to the coating decomposition the reliability of basalt TRC can only be guaranteed from room temperature to 150 °C.
KW - Basalt fiber
KW - Digital image correlation
KW - Elevated temperatures
KW - Finite difference model
KW - Mechanical properties
KW - Textile reinforced refractory concrete
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U2 - 10.1016/j.cemconcomp.2016.11.003
DO - 10.1016/j.cemconcomp.2016.11.003
M3 - Article
AN - SCOPUS:84995906184
SN - 0958-9465
VL - 75
SP - 51
EP - 61
JO - Cement and Concrete Composites
JF - Cement and Concrete Composites
ER -