Degradation of recycled PET fibers in Portland cement-based materials

被引：136
|
作者：
Silva, DA
Betioli, AM
Gleize, PJP
Roman, HR
Gómez, LA
Ribeiro, JLD
机构：
[1] Univ Fed Santa Catarina, Dept Civil Engn, BR-88040900 Florianopolis, SC, Brazil
[2] Univ Fed Rio Grande Sul, Porto Alegre, RS, Brazil
来源：
CEMENT AND CONCRETE RESEARCH | 2005年 / 35卷 / 09期
关键词：
PET fiber reinforcement; degradation; Portland cement; SEM; FTIR;
D O I：
10.1016/j.cemconres.2004.10.040
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In order to investigate the durability of recycled PET fibers embedded in cement-based materials, fiber-reinforced mortar specimens were tested until 164 days after mixing. Compressive, tensile, and flexural strengths, elasticity modulus, and toughness of the specimens were determined. The mortars were also analyzed by SEM. The results have shown that PET fibers have no significant influence on mortars strengths and elasticity modulus. However, the toughness indexes 15, 110, and 1,0 decreased with time due to the degradation of PET fibers by alkaline hydrolysis when embedded in the cement matrix. Fourier transform infrared spectroscopy (FT-IR) and SEM analysis of PET fibers immersed and kept for 150 days in alkaline solutions supported the conclusions. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1741 / 1746
页数：6
相关论文
共 50 条
  • [41] Microstructural changes induced in Portland cement-based materials due to natural and supercritical carbonation
    Ana Hidalgo
    Concha Domingo
    Carlos Garcia
    Sabine Petit
    Carmen Andrade
    Cruz Alonso
    [J]. Journal of Materials Science, 2008, 43 : 3101 - 3111
  • [42] Microstructural changes induced in Portland cement-based materials due to natural and supercritical carbonation
    Hidalgo, Ana
    Domingo, Concha
    Garcia, Carlos
    Petit, Sabine
    Andrade, Carmen
    Alonso, Cruz
    [J]. JOURNAL OF MATERIALS SCIENCE, 2008, 43 (09) : 3101 - 3111
  • [43] Evaluation of the stability of polypropylene fibers in environments aggressive to cement-based materials
    Segre, N
    Tonella, E
    Joekes, I
    [J]. CEMENT AND CONCRETE RESEARCH, 1998, 28 (01) : 75 - 81
  • [44] Multifunctional surfaces of portland cement-based materials developed with functionalized silicon-based nanoparticles
    Cruz-Moreno, D.
    Fajardo, G.
    Flores-Vivian, I.
    Orozco-Cruz, R.
    Ramos-Rivera, C.
    [J]. APPLIED SURFACE SCIENCE, 2020, 531
  • [45] Interactions between inorganic surface treatment agents and matrix of Portland cement-based materials
    Pan, Xiaoying
    Shi, Zhenguo
    Shi, Caijun
    Hu, Xiang
    Wu, Linmei
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2016, 113 : 721 - 731
  • [46] Functional and environmental performance optimization of Portland cement-based materials by combined mineral fillers
    Juhart, Joachim
    David, Gheorghe-Alexandru
    Mendes Saade, Marcella Ruschi
    Baldermann, Claudia
    Passer, Alexander
    Mittermayr, Florian
    [J]. CEMENT AND CONCRETE RESEARCH, 2019, 122 : 157 - 178
  • [47] Cell Attachment Properties of Portland Cement-based Endodontic Materials: Biological and Methodological Considerations
    Ahmed, Hany Mohamed Aly
    Luddin, Norhayati
    Kannan, Thirumulu Ponnuraj
    Mokhtar, Khairani Idah
    Ahmad, Azlina
    [J]. JOURNAL OF ENDODONTICS, 2014, 40 (10) : 1517 - 1523
  • [48] Effects of the geometry of recycled PET fiber reinforcement on shrinkage cracking of cement-based composites
    Kim, Jang-Ho Jay
    Park, Chan-Gi
    Lee, Si-Won
    Lee, Sang-Woo
    Won, Jong-Pil
    [J]. COMPOSITES PART B-ENGINEERING, 2008, 39 (03) : 442 - 450
  • [49] Experimental Validation of a Numerical Model for Simulating Radiographic Imaging of Portland Cement-Based Materials
    Keller, W. J.
    Pessiki, S.
    [J]. JOURNAL OF NONDESTRUCTIVE EVALUATION, 2015, 34 (03)
  • [50] Experimental Validation of a Numerical Model for Simulating Radiographic Imaging of Portland Cement-Based Materials
    W. J. Keller
    S. Pessiki
    [J]. Journal of Nondestructive Evaluation, 2015, 34
12345