Experimental Behavior of Glass-FRCM Composites Applied onto Masonry and Concrete Substrates

Abstract:

The use of Fiber Reinforced Polymer (FRP) composites has become a popular solution for retrofitting and strengthening of existing concrete and masonry structures. However, some drawbacks of this technique, mainly associated with the use of organic resins, have been reported. To overcome such drawbacks, the development of composite materials in which the organic resins are replaced with inorganic matrices has recently caught the attention of the civil engineering industry. Among these newly developed systems, Fiber Reinforced Cementitious Matrix (FRCM) composites, which are comprised of high strength fibers embedded within an inorganic matrix, have shown promising results. However, research on this topic is still limited and important aspects, such as the bond behavior between the composite and the substrate, are not fully understood and require further study. This paper presents the results of an experimental campaign aimed at investigating the influence of the type of matrix and substrate on the bond behavior of FRCM composites. Glass-FRCM composite strips were applied onto concrete and masonry substrates and then tested by means of a classical push-pull single-lap direct-shear test set-up. A cementitious and a lime-based matrix were employed to apply the same type of fiber on concrete and masonry substrates, respectively. FRCM-concrete and FRCM-masonry joints reported the same failure mode. However, higher values of the peak load were obtained for the lime-based glass-FRCM composite applied onto masonry substrates than with the cementitious glass-FRCM composite applied onto concrete substrates.

• Periodical: Key Engineering Materials (Volume 747)
• Pages: 390-397
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.747.390
• Online since: July 2017
• Authors: Jaime Gonzalez-Libreros*, Tommaso D'Antino, Carlo Pellegrino
• Keywords: Bond Behavior, Concrete, Fiber Reinforced Cementitious Matrix FRCM, Glass, Masonry, Single-Lap Direct-Shear Test

References

[1] Pellegrino C, Vasic M. Assessment of design procedures for the use of externally bonded FRP composites in shear strengthening of reinforced concrete beams. Compos Part B Eng 2013; 45: 727–41.

DOI: 10.1016/j.compositesb.2012.07.039

[2] Triantafillou TC, Papanicolaou CG. Shear strengthening of reinforced concrete members with textile reinforced mortar (TRM) jackets. Mater Struct Constr 2006; 39: 93–103.

DOI: 10.1007/s11527-005-9034-3

[3] Al-Salloum Y, Elsanadedy HM, Alsayed SH, Iqbal RA. Experimental and numerical study for the shear strengthening of reinforced concrete beams using textile-reinforced mortar. J Compos Constr 2012; 16: 74–90.

DOI: 10.1061/(asce)cc.1943-5614.0000239

[4] Brückner A, Ortlepp R, Curbach M. Textile reinforced concrete for strengthening in bending and shear. Mater Struct 2006; 39: 741–8. doi: 10. 1617/s11527-005-9027-2.

DOI: 10.1617/s11527-005-9027-2

[5] Ombres L. Structural performances of PBO FRCM-strengthened RC beams. Proc ICE - Struct Build 2011; 164: 265–72.

DOI: 10.1680/stbu.2011.164.4.265

[6] Bournas D, Triantafillou T, Zygouris K, Stavropoulos F. Textile-Reinforced Mortar versus FRP Jacketing in Seismic Retrofitting of RC Columns with Continuous or Lap-Spliced Deformed Bars. J Compos Constr 2009; 13: 360–71. doi: 10. 1061/(ASCE)CC. 1943-5614. 0000028.

DOI: 10.1061/(asce)cc.1943-5614.0000028

[7] Babaeidarabad S, Arboleda D, Loreto G, Nanni A. Shear strengthening of un-reinforced concrete masonry walls with fabric-reinforced-cementitious-matrix. Constr Build Mater 2014; 65: 243–53. doi: 10. 1016/j. conbuildmat. 2014. 04. 116.

DOI: 10.1016/j.conbuildmat.2014.04.116

[8] Santandrea M, Imohamed IAO, Carloni C, Mazzotti C, Miranda S De, Ubertini F. A study of the debonding mechanism in steel and basalt FRCM-masonry joints. Int. Brick Block Mason. Conf., Padua, Italy: 2016, p.433–40.

DOI: 10.1201/b21889-52

[9] ACI Committee 549. Guide to design and construction of externally bonded Fabric-Reinforced Cementitious Matrix (FRCM) systems for Repair and Strengthening Concrete and Masonry Structures. ACI549R-13. Farmington Hills, MI.: (2013).

DOI: 10.1016/j.prostr.2018.11.027

[10] D'Antino T, Papanicolaou C. Mechanical characterization of textile reinforced inorganic-matrix composites. Compos Part B Eng 2017. doi: 10. 1016/j. compositesb. 2017. 02. 034.

[11] D'Antino T, Carloni C, Sneed LH, Pellegrino C. Matrix-fiber bond behavior in PBO FRCM composites: A fracture mechanics approach. Eng Fract Mech 2014; 117: 94–111. doi: 10. 1016/j. engfracmech. 2014. 01. 011.

DOI: 10.1016/j.engfracmech.2014.01.011

[12] D'Ambrisi A, Feo L, Focacci F. Experimental and analytical investigation on bond between Carbon-FRCM materials and masonry. Compos Part B Eng 2013; 46: 15–20. doi: 10. 1016/j. compositesb. 2012. 10. 018.

DOI: 10.1016/j.compositesb.2012.10.018

[13] D'Ambrisi A, Feo L, Focacci F. Experimental analysis on bond between PBO-FRCM strengthening materials and concrete. Compos Part B Eng 2013; 44: 524–32. doi: 10. 1016/j. compositesb. 2012. 03. 011.

DOI: 10.1016/j.compositesb.2012.03.011

[14] Sneed LH, D'Antino T, Carloni C. Investigation of bond behavior of polyparaphenylene benzobisoxazole fiber-reinforced cementitious matrix composite-concrete interface. ACI Mater J 2014; 111: 569–80. doi: 10. 14359/51686604.

DOI: 10.14359/51686604

[15] Sneed LH, Verre S, Carloni C, Ombres L. Flexural behavior of RC beams strengthened with steel-FRCM composite. Eng Struct 2016; 127.

DOI: 10.1016/j.engstruct.2016.09.006

[16] Carozzi FG, Colombi P, Fava G, Poggi C. A cohesive interface crack model for the matrix-textile debonding in FRCM composites. Compos Struct 2016; 143: 230–41. doi: 10. 1016/j. compstruct. 2016. 02. 019.

DOI: 10.1016/j.compstruct.2016.02.019

[17] Yao J, Teng JG, Chen JF. Experimental study on FRP-to-concrete bonded joints. Compos Part B Eng 2005; 36: 99–113. doi: 10. 1016/j. compositesb. 2004. 06. 001.

DOI: 10.1016/j.compositesb.2004.06.001

[18] J.F. Chen & J.G. Teng. Anchorage Strength Models for FRP and Steel Plates. J Struct Eng 2001; 127: 784–91.

DOI: 10.1061/(asce)0733-9445(2001)127:7(784)

[19] D'Antino T, Sneed LH, Carloni C, Pellegrino C. Effect of the inherent eccentricity in single-lap direct-shear tests of PBO FRCM-concrete joints. Compos Struct 2016; 142: 117–29. doi: 10. 1016/j. compstruct. 2016. 01. 076.

DOI: 10.1016/j.compstruct.2016.01.076

[20] D'Antino T, Pellegrino C. Bond between FRP composites and concrete: Assessment of design procedures and analytical models. Compos Part B Eng 2014; 60: 440–56. doi: 10. 1016/j. compositesb. 2013. 12. 075.

DOI: 10.1016/j.compositesb.2013.12.075

[21] COMITE EUROPEEN DE NORMALIZATION. Methods of test for mortar for masonry - Part 11: determination of flexural and compressive strength of hardened mortar 2007: UNI EN 1015-11.

DOI: 10.3403/01905442

[22] G&PIntech. Technical datasheets 2017. http: /www. gpintech. com/ (accessed January 19, 2017).

[23] ASTM INTERNATIONAL. Standard test method for tensile properties of polymer matrix composite materials 2008: ASTM D3039/D3039M-08.

[24] EN-12390-3. Testing hardened concrete-Part 3: Compressive strength of test specimens. Brussels, Belgium: EUROPEAN COMMITTEE FOR STANDARDIZATION; (2009).

[25] Terreal San Marco. Technical datasheet n. d. http: /www. sanmarco. it/index. php/faccia-vista/classico (accessed January 19, 2017).