Title:
Bond Degradation of Glass Fiber-Reinforced Polymer Bars Embedded in Basalt Fiber-Reinforced Cementitious Composite under Harsh Conditions
Author(s):
Ahmed G. Bediwy and Ehab F. El-Salakawy
Publication:
Materials Journal
Volume:
118
Issue:
5
Appears on pages(s):
149-159
Keywords:
basalt fiber pellets; glass fiber-reinforced polymer; headed-end bars; pullout; residual bond strength
DOI:
10.14359/51732980
Date:
9/1/2021
Abstract:
This study aims at assessing the long-term bond behavior of headed-end glass fiber-reinforced polymer (GFRP) bars to basalt fiber-reinforced cementitious composite (BFRCC) exposed to 300 consecutive freezing-and-thawing cycles, followed by 75 cycles of wetting and drying, mimicking successive winter and summer seasons. A total of 85 pullout specimens reinforced with recently developed basalt fiber pellets and steel fibers were tested. The durability of the specimens was quantified in terms of visual analysis, residual compressive strength, relative dynamic modulus of elasticity, as well as the residual pullout capacity. The addition of fibers was capable of retaining approximately 90% of the pullout capacity for specimens exposed to harsh conditions owing to the restriction of cracks in the fiber-reinforced cementitious composites. Therefore, the results confirmed the suitability of steel-free reinforcement systems for long-term application under severe freezing-and-thawing and wetting-and-drying environments.
Related References:
Alsaif, A.; Bernal, S. A.; Guadagnini, M.; and Pilakoutas, K., 2019, “Freeze-Thaw Resistance of Steel Fibre Reinforced Rubberised Concrete,” Construction and Building Materials, V. 195, Jan., pp. 450-458. doi: 10.1016/j.conbuildmat.2018.11.103
Alves, J.; El-Ragaby, A.; and El-Salakawy, E., 2011, “Durability of GFRP Bars’ Bond to Concrete under Different Loading and Environmental Conditions,” Journal of Composites for Construction, ASCE, V. 15, No. 3, June, pp. 249-262. doi: 10.1061/(ASCE)CC.1943-5614.0000161
Arslan, M. E., 2016, “Effects of Basalt and Glass Chopped Fibers Addition on Fracture Energy and Mechanical Properties of Ordinary Concrete: CMOD Measurement,” Construction and Building Materials, V. 114, July, pp. 383-391. doi: 10.1016/j.conbuildmat.2016.03.176
ASTM C136/C136M-14, 2014, “Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates,” ASTM International, West Conshohocken, PA, 5 pp.
ASTM C215-19, 2019, “Standard Test Method for Fundamental Transverse, Longitudinal, and Torsional Resonant Frequencies of Concrete Specimens,” ASTM International, West Conshohocken, PA, 7 pp.
ASTM C231/C231M-17a, 2017, “Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method,” ASTM International, West Conshohocken, PA, 10 pp.
ASTM C494/C494M-19, 2019, “Standard Specification for Chemical Admixtures for Concrete,” ASTM International, West Conshohocken, PA, 15 pp.
ASTM C666/C666M-15, 2015, “Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing,” ASTM International, West Conshohocken, PA, 7 pp.
ASTM C672/C672M-12, 2012, “Standard Test Method for Scaling Resistance of Concrete Surfaces Exposed to Deicing Chemicals,” ASTM International, West Conshohocken, PA, 3 pp.
ASTM D7205/D7205M-06(16), 2016, “Standard Test Method for Tensile Properties of Fiber Reinforced Polymer Matrix Composite Bars,” ASTM International, West Conshohocken, PA, 13 pp.
Azzam, A.; Bassuoni, M. T.; and Shalaby, A., 2019, “Properties of High-Volume Fly Ash and Slag Cementitious Composites Incorporating Nanosilica and Basalt Fiber Pellets,” Advances in Civil Engineering Materials, V. 8, No. 3, Nov., pp. 255-274. doi: 10.1520/ACEM20190018
Bassuoni, M. T., and Rahman, M. M., 2016, “Response of Concrete to Accelerated Physical Salt Attack Exposure,” Cement and Concrete Research, V. 79, Jan., pp. 395-408. doi: 10.1016/j.cemconres.2015.02.006
Belarbi, A., and Wang, H., 2012, “Bond Durability of FRP Bars Embedded in Fiber-Reinforced Concrete,” Journal of Composites for Construction, ASCE, V. 16, No. 4, Aug., pp. 371-380. doi: 10.1061/(ASCE)CC.1943-5614.0000270
Benmokrane, B.; Mohamed, H. M.; Manalo, A.; and Cousin, P., 2017, “Evaluation of Physical and Durability Characteristics of New Headed Glass Fiber-Reinforced Polymer Bars for Concrete Structures,” Journal of Composites for Construction, ASCE. V. 21, No. 2, Apr., p. 04016081. doi: 10.1061/(ASCE)CC.1943-5614.0000738
Bentur, A., and Mindess, S., 2007, Fibre Reinforced Cementitious Composites, second edition, E & FN Spon, New York, 624 pp.
Calvet, V.; Valcuende, M.; Benlloch, J.; and Cánoves, J., 2015, “Influence of Moderate Temperatures on the Bond between Carbon Fibre Reinforced Polymer Bars (CFRP) and Concrete,” Construction and Building Materials, V. 94, Sept., pp. 589-604. doi: 10.1016/j.conbuildmat.2015.07.053
Chu, S. H., and Kwan, A. K. H., 2019, “A New Bond Model for Reinforcing Bars in Steel Fibre Reinforced Concrete,” Cement and Concrete Composites, V. 104, Nov., p. 103405. doi: 10.1016/j.cemconcomp.2019.103405
Cosenza, E.; Manfredi, G.; and Realfonzo, R., 1997, “Behavior and Modeling of Bond of FRP Rebars to Concrete,” Journal of Composites for Construction, ASCE, V. 1, No. 2, May, pp. 40-51. doi: 10.1061/(ASCE)1090-0268(1997)1:2(40)
CSA A23.1:19/A23.2:19, 2019, “Concrete Materials and Methods of Concrete Construction/Test Methods and Standard Practices for Concrete,” Canadian Standards Association, Toronto, ON, Canada, 882 pp.
CSA A3001-13, 2013, “Cementitious Materials for Use in Concrete,”Canadian Standards Association, Toronto, ON, Canada.
CSA S806-12 (R2017), 2017, “Design and Construction of Building Structures with Fibre-Reinforced Polymers,” Canadian Standards Association, Toronto, ON, Canada, 206 pp.
Davalos, J. F.; Chen, Y.; and Ray, I., 2008, “Effect of FRP Bar Degradation on Interface Bond with High Strength Concrete,” Cement and Concrete Composites, V. 30, No. 8, Sept., pp. 722-730. doi: 10.1016/j.cemconcomp.2008.05.006
Islam, S.; Afefy, H. M.; Sennah, K.; and Azimi, H., 2015, “Bond Characteristics of Straight- and Headed-End, Ribbed-Surface, GFRP Bars Embedded in High-Strength Concrete,” Construction and Building Materials, V. 83, May, pp. 283-298. doi: 10.1016/j.conbuildmat.2015.03.025
Iyer, P.; Kenno, S. Y.; and Das, S., 2016, “Performance of Fiber-Reinforced Concrete Made with Basalt-Bundled Fibers,” Advances in Civil Engineering Materials, V. 5, No. 1, pp. 107-123. doi: 10.1520/ACEM20150027
Kim, B.; Doh, J.-H.; Yi, C.-K.; and Lee, J.-Y., 2013, “Effects of Structural Fibers on Bonding Mechanism Changes in Interface between GFRP Bar and Concrete,” Composites Part B: Engineering, V. 45, No. 1, Feb., pp. 768-779. doi: 10.1016/j.compositesb.2012.09.039
Li, C.; Gao, D.; Wang, Y.; and Tang, J., 2017, “Effect of High Temperature on the Bond Performance between Basalt Fibre Reinforced Polymer (BFRP) Bars and Concrete,” Construction and Building Materials, V. 141, June, pp. 44-51. doi: 10.1016/j.conbuildmat.2017.02.125
Mahmoud, K.; Ghazy, A.; Bassuoni, M. T.; and El-Salakawy, E., 2017, “Properties of Nanomodified Fiber-Reinforced Cementitious Composites,” Journal of Materials in Civil Engineering, ASCE, V. 29, No. 10, Oct., p. 04017173. doi: 10.1061/(ASCE)MT.1943-5533.0002040
Maranan, G. B.; Manalo, A. C.; Karunasena, W.; and Benmokrane, B., 2015, “Pullout Behaviour of GFRP Bars with Anchor Head in Geopolymer Concrete,” Composite Structures, V. 132, Nov., pp. 1113-1121. doi: 10.1016/j.compstruct.2015.07.021
Naaman, A. E., and Jeong, S. M., “Structural Ductility of Concrete Beams Prestressed with FRP Tendons,” RILEM Proceedings, Second International Symposium, Non-Metallic (FRP) Reinforcement for Concrete Structures, Ghent, Belgium, 1995, pp. 379-386.
Nes, L. G., and Øverli, J. A., 2016, “Structural Behaviour of Layered Beams with Fibre-Reinforced LWAC and Normal Density Concrete,” Materials and Structures, V. 49, No. 1-2, Jan., pp. 689-703.
Wille, K.; Naaman, A. E.; El-Tawil, S.; and Parra-Montesinos, G. J., 2012, “Ultra-High Performance Concrete and Fiber Reinforced Concrete: Achieving Strength and Ductility without Heat Curing,” Materials and Structures, V. 45, No. 3, Mar., pp. 309-324. doi: 10.1617/s11527-011-9767-0
Yan, F., and Lin, Z., 2017, “Bond Durability Assessment and Long-Term Degradation Prediction for GFRP Bars to Fiber-Reinforced Concrete under Saline Solutions,” Composite Structures, V. 161, Feb., pp. 393-406. doi: 10.1016/j.compstruct.2016.11.055