Materiales de Construcción, Vol 68, No 330 (2018)

Efficiency of self-healing cementitious materials with encapsulated polyurethane to reduce water ingress through cracks


https://doi.org/10.3989/mc.2018.05917

B. Van Belleghem
Magnel Laboratory for Concrete Research, Department of Structural Engineering, Faculty of Engineering and Architecture, Ghent University - Strategic Initiative Materials (SIM), Tech Lane Ghent Science Park, Belgium
orcid http://orcid.org/0000-0003-1294-1724

K. Van Tittelboom
Magnel Laboratory for Concrete Research, Department of Structural Engineering, Faculty of Engineering and Architecture, Ghent University, Belgium
orcid http://orcid.org/0000-0002-7718-3189

N. De Belie
Magnel Laboratory for Concrete Research, Department of Structural Engineering, Faculty of Engineering and Architecture, Ghent University, Belgium
orcid http://orcid.org/0000-0002-0851-6242

Abstract


Cracks in reinforced concrete elements can cause major durability issues due do the accelerated ingress of aggressive substances. In this study, repair of cracks was addressed by incorporating encapsulated polyurethane based healing agents in the cementitious material as an autonomous healing mechanism.

Capillary sorption tests showed that a high viscosity healing agent could reduce the water ingress in cracked mortar, but a large scatter in the results was found, resulting in a large range of healing efficiencies (18 – 108%). The low viscosity polyurethane showed a more complete and consistent crack healing. Healing efficiencies ranging from 95 to 124% were observed (crack width up to 295 μm). The proposed healing mechanism is very effective in blocking the ingress of water. This will enhance the durability of cementitious materials and consequently extend their lifetime.

Keywords


Mortar; Polymer; Durability; Ttransport properties

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References


The Concrete Society; Clarke, J.L. (2009) Historical approaches to the design of concrete buildings and structures (Concrete Society Technical Report TR70). The Concrete Society, Camberley.

Cailleux, E.; Pollet, V. (2009) Investigations on the development of self-healing properties in protective coatings for concrete and repair mortars. Proceedings of the second international conference on self-healing materials. 120.

Van Belleghem, B.; Van den Heede, P.; Van Tittelboom, K.; De Belie, N. (2017) Quantification of the service life extension and environmental benefit of chloride exposed self-healing concrete. Materials 10 [1], 5. https://doi.org/10.3390/ma10010005 PMid:28772363 PMCid:PMC5344592

Martys, N.S.; Ferraris, C.F. (1997) Capillary transport in mortars and concretes. Cement Concrete Res. 27 [5], 747-760. https://doi.org/10.1016/S0008-8846(97)00052-5

Wang, L.C. (2014) Experimental study on water absorption by concrete damaged by uniaxial loading. 4th International Conference on the Durability of Concrete Structures. West Lafayette, USA.

Van Belleghem, B.; Montoya, R.; Dewanckele, J.; Van den Steen, N.; De Graeve, I.; Deconinck, J.; Cnudde, V.; Van Tittelboom, K.; De Belie, N. (2016) Capillary water absorption in cracked and uncracked mortar – A comparison between experimental study and finite element analysis. Constr. Build. Mater. 110, 154-162. https://doi.org/10.1016/j.conbuildmat.2016.02.027

NBN EN 1992-1-1. (2005) Design of concrete structures - Part 1-1: General rules and rules for buildings. European committee for Standardization. Brussels, Belgium.

Li, V.C.; Lim, Y.M.; Chan, Y.-W. 1998. Feasibility Study of a Passive Smart Self-healing Cementitious Composite. Compos. Part B 29 [6], 819-827. https://doi.org/10.1016/S1359-8368(98)00034-1

Mihashi, H.; Nishiwaki, T. (2012) Development of engineered self-healing and self-repairing concrete – State-ofthe- art report. J. Adv. Concr. Technol. 10 [5], 170-184. https://doi.org/10.3151/jact.10.170

Van Tittelboom, K.; De Belie, N. 2013. Self-healing cementitious materials – A review. Materials 6 [6], 2182-2217. https://doi.org/10.3390/ma6062182 PMid:28809268 PMCid:PMC5458958

Joseph, C.; Jefferson, A.D.; Isaacs, B.; Lark, R.J.; Gardner, D.R. (2010) Experimental investigation of adhesive-based self-healing of cementitious materials. Mag. Concrete Res. 62 [11], 831-843. https://doi.org/10.1680/macr.2010.62.11.831

Sun, L.; Yu, W.; Ge, Q. (2011) Experimental research on the self-healing performance of micro-cracks in concrete bridge. Adv. Mater. Res. 250-253: 28-32.

Dry, C.M. (2000) Three designs for the internal release of sealants, adhesives, and waterproofing chemicals into concrete to reduce permeability. Cem. Concr. Res. 30 [12], 1969–1977. https://doi.org/10.1016/S0008-8846(00)00415-4

Yang, Y.; Yang, E-H.; Li, V.C. (2011) Autogenous healing of engineered cementitious composites at early age. Cement Concrete Res. 41 [2], 176–183. https://doi.org/10.1016/j.cemconres.2010.11.002

Homma, D.; Mihashi, H.; Nishiwaki, T. (2009) Self-healing capability of fibre reinforced cementitious composites. J. Adv. Concr. Technol. 7 [2], 217–228. https://doi.org/10.3151/jact.7.217

Ferrara, L.; Krelani, V.; Moretti, F. 2016. On the use of crystalline admixtures in cement based construction materials: From porosity reducers to promoters of self healing. Smart Mater. Struct. 25 [8], 084002. https://doi.org/10.1088/0964-1726/25/8/084002

Ferrara, L.; Krelani, V.; Moretti, F. (2016) Autogenous healing on the recovery of mechanical performance of High Performance Fibre Reinforced Cementitious Composites (HPFRCCs): Part 2—Correlation between healing of mechanical performance and crack sealing. Cement Concrete Comp. 73, 299–315. https://doi.org/10.1016/j.cemconcomp.2016.08.003

Lee, H.X.D.; Wong, H.S.; Buenfeld, N. (2010) Self-sealing cement-based materials using superabsorbent polymers. Proceedings of the International RILEM Conference on Use of Superabsorbent Polymers and Other New Additives in Concrete. Lyngby, Denmark: 171–178.

Snoeck, D.; De Belie, N. (2015) Repeated autogenous healing in strain-hardening cementitious composites by using superabsorbent polymers. J. Mater. Civil Eng. 28 [1].

Janssen, D. (2011) Water Encapsulation to Initiate Self-Healing in Cementitious Materials. Master's Thesis, Delft University of Technology, Delft, The Netherlands.

Qian, S.Z.; Zhou, J.; Schlangen, E. (2010) Influence of curing condition and precracking time on the self-healing behavior of Engineered Cementitious Composites. Cement Concrete Comp. 32 [9], 686–693. https://doi.org/10.1016/j.cemconcomp.2010.07.015

Snoeck, D.; Van Tittelboom, K.; Steuperaert, S.; Dubruel, P.; De Belie, N. (2014) Self-healing cementitious materials by the combination of microfibres and superabsorbent polymers. J. Intel. Mater. Syst. Str. 25 [1], 13-24. https://doi.org/10.1177/1045389X12438623

Snoeck, D.; De Belie, N. (2015) From straw in bricks to modern use of microfibers in cementitious composites for improved autogenous healing - A review. Constr. Build. Mater. 95, 774-787. https://doi.org/10.1016/j.conbuildmat.2015.07.018

Yang, Y.; Lepech, M.D.; Yang, E.-H.; Li, V.C. (2009) Autogenous healing of engineered cementitious composites under wet–dry cycles. Cem. Concr. Res. 39 [5], 382–390. https://doi.org/10.1016/j.cemconres.2009.01.013

Van Tittelboom, K.; De Belie, N.; De Muynck, W.; Verstraete, W. (2010) Use of bacteria to repair cracks in concrete. Cem. Concr. Res. 40 [1], 157–166. https://doi.org/10.1016/j.cemconres.2009.08.025

Jonkers, H.; Thijssen, A.; Muyzer, G.; Copuroglu, O.; Schlangen, E. (2010) Application of bacteria as selfhealing agent for the development of sustainable concrete. Ecol. Eng. 36 [2], 230-235. https://doi.org/10.1016/j.ecoleng.2008.12.036

Luhar, S.; Gourav, S. (2015) A review paper on self healing concrete. J. Civil Eng. Res. 5 [3], 53-58.

Van Tittelboom, K.; De Belie, N. (2013) Self-healing in cementitious materials – A review. Materials 6 [6], 2182-2217. https://doi.org/10.3390/ma6062182 PMid:28809268 PMCid:PMC5458958

Wang, J.; Ersan, Y.C.; Boon, N.; De Belie, N. (2016) Application of microorganisms in concrete: a promising sustainable strategy to improve concrete durability. Appl. Microbiol. Biot. 100 [7], 2993-3007. https://doi.org/10.1007/s00253-016-7370-6 PMid:26896159

Souradeep, G.; Dai, P.S.; Wei, K.H. Autonomous healing in concrete by bio-based healing agents – A review. Constr. Build. Mater. 146, 419-428.

Vijay, K.; Murmu, M.; Deo, S.V. (2017) Bacteria based self healing concrete – A review. Constr. Build. Mater. 152, 1008-1014. https://doi.org/10.1016/j.conbuildmat.2017.07.040

Van Tittelboom, K., De Belie, N., Van Loo, D., Jacobs, P. (2011) Self-healing efficiency of cementitious materials containing tubular capsules filled with healing agent, Cement Concrete Comp. 33, 497-505. https://doi.org/10.1016/j.cemconcomp.2011.01.004

Feiteira, J.; Gruyaert, E.; De Belie, N. (2016) Self-healing of moving cracks in concrete by means of encapsulated polymer precursors. Constr. Build. Mater. 102, 617-678. https://doi.org/10.1016/j.conbuildmat.2015.10.192

Kanellopoulos, A.; Qureshi, T.S.; Al-Tabbaa, A. (2015) Glass encapsulated minerals for self-healing in cement based composites. Constr. Build. Mater. 98, 780-791. https://doi.org/10.1016/j.conbuildmat.2015.08.127

Van Belleghem, B.; Dewanckele, J.; Cnudde, V.; De Belie, N. (2015) Analysis and visualization of water uptake in cracked and healed mortar by water absorption tests and X-ray radiography. 4th international conference on concrete repair, rehabilitation and retrofitting. Leipzig, Germany, 45-53. https://doi.org/10.1201/b18972-9

Van den Heede, P.; Van Belleghem, B.; Alderete, N.; Van Tittelboom, K.; De Belie, N. (2016) Neutron radiography based visualization and profiling of water uptake in (un)cracked and autonomously healed cementitious materials. Materials 9 [5], 311. https://doi.org/10.3390/ma9050311 PMid:28773436 PMCid:PMC5503074

Gruyaert, E.; Feiteira, J.; De Belie, N.; Malm, F.; Nahm, M.; Grosse, C.U.; Tziviloglou, E.; Schlangen, E.; Tsangouri, E. (2016) Non-destructive testing techniques to evaluate the healing efficiency of self-healing concrete at lab-scale. Emerging Technologies in Non-Destructive Testing VI, Proceedings, 227-233.

NBN EN 13057. (2002) Products and systems for the protection and repair of concrete structures – Test methods – Determination of resistance to capillary absorption. European committee for Standardization. Brussels, Belgium.

Feiteira, J. (2017) Encapsulated polymer precursors as healing agents for active cracks. Ph.D. Thesis, Ghent University, Ghent, Belgium.

Van Tittelboom, K.; Wang, J.; Araújo, M.; Snoeck, D.; Gruyaert, E.; Debbaut, B.; Derluyn, H.; Cnudde, V.; Tsangouri, E.; Van Hemelrijck, D.; De Belie, N. (2016) Comparison of different approaches for selfhealing concrete in a large-scale lab test. Constr. Build. Mater. 107, 125-137. https://doi.org/10.1016/j.conbuildmat.2015.12.186




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