Long-term 20-year performance of surface coating repairs applied to façades of reinforced concrete buildings
Source abstract
Abstract
The present study was conducted to evaluate effectiveness of surface coating repairs after 20 years since their application on façade panels of two existing concrete buildings. The repairs involved coatings and electrochemical treatment systems comprising Silane and Siloxane (S/S), Amino Alcohol Corrosion Inhibitor (AACI), acrylic coating, and re-alkalisation (Re-Alk). Altogether, 11 selected façade panels were evaluated in this study. The field investigations comprised visual survey, non-destructive tests (NDT) for compressive strength using Schmidt hammer, cover depth, reinforcement bar size, Ultrasonic Pulse Velocity Test (UPV), Torrent permeability. Limited carbonation depth tests were also conducted on selected panels. It was found that, UPV and permeability values indicated poor or very poor concrete quality in the repaired panels except for those repaired using acrylic coatings, which showed retention of good concrete quality. AACI coatings with or without S/S gave similar performance as control, implying no significantly improved protection by these repair materials.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete Corrosion and Durability · Infrastructure Maintenance and Monitoring · Smart Materials for Construction
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (61)
Show source-provided references
1. Benchmarking through an algorithm of repair methods of reinforcement corrosion: the repair index method10.1016/j.cemconcomp.2005.01.002 ↗
2. ICRI · 2015 · 9
3. EN 1504-2:2004 · 2017
4. A review on effects of curing, sheltering, and CO2 concentration upon natural carbonation of concrete10.1016/j.conbuildmat.2016.09.056 ↗
5. Damage of concrete and reinforcement of reinforced concrete foundations caused by environmental effects
6. Deterioration of concrete due to reinforcement steel corrosion10.1016/0958-9465(95)00043-7 ↗
7. Mackechnie · 2001
8. Relationship between concrete resistivity and corrosion rate—a literature review10.1016/j.cemconcomp.2013.03.019 ↗
9. Effect of coupled deterioration by freeze-thaw carbonation and chlorides on concrete service, life10.1016/j.cemconcomp.2013.10.008 ↗
10. Degradation of fly ash concrete under the coupled effect of carbonation and chloride aerosol ingress10.1016/j.corsci.2016.08.004 ↗
11. Methodology for service life prediction of architectural concrete façades10.1016/j.conbuildmat.2016.12.079 ↗
12. Treatment of a stochastic service life prediction model to an evaluation of a distressed two-story RC building
13. Corrosion characteristics of a 4-year naturally corroded reinforced concrete beam with load-induced transverse cracks10.1016/j.corsci.2017.01.002 ↗
14. Characterization of concrete cracking due to corrosion of reinforcements in different environments10.1016/j.conbuildmat.2010.07.029 ↗
15. Corrosion products of carbonation-induced corrosion in existing reinforced concrete façades10.1016/j.cemconres.2015.07.009 ↗
16. Behaviour of patch repair of axially loaded reinforced concrete beams10.1016/j.cemconcomp.2006.05.013 ↗
17. Effect of steel corrosion and loss of concrete cover on strength of deteriorated RC columns10.1016/j.conbuildmat.2010.12.003 ↗
18. Structural performance of RC beams damaged by natural corrosion under sustained loading in a chloride environment10.1016/j.engstruct.2015.04.001 ↗
19. The effect of corrosion on shear behavior of reinforced self-consolidating concrete beams10.1016/j.engstruct.2014.07.044 ↗
20. Reinforcement corrosion and the deflection of RC beams—an experimental critique of current test methods10.1016/S0958-9465(02)00076-8 ↗
21. Effects of stirrup and inclined bar corrosion on shear behavior of RC beams10.1016/j.conbuildmat.2015.07.077 ↗
22. Evaluating the effect of corrosion on service life prediction of RC structures—a parametric study10.1016/j.ijsbe.2016.07.001 ↗
23. Propagation of steel corrosion in concrete: experimental and numerical investigations10.1016/j.cemconcomp.2016.04.007 ↗
24. Model validation and characteristics of the service life of Johannesburg concrete structures
25. Model verification, refinement and testing on independent 10-year carbonation field data
26. Essential parameters for strength-based service life modeling of reinforced concrete structures—a review
27. Revisiting Ultrasonic Pulse Velocity measurements as assessment method for polymer-modified concrete patch repairs
28. Long term evaluation of concrete patch repairs, concrete solutions
29. Concrete Protection—a case study based comparison of concrete corrosion protection methods using various polymeric coatings and treatments
30. How to make today’s repairs durable for tomorrows corrosion protection in concrete repair10.1016/S0950-0618(00)00022-2 ↗
31. Diagnosing the cause of incipient anodes in repaired reinforced concrete structures10.1016/j.corsci.2012.11.032 ↗
32. Theoretical and experimental study of microcell and macrocell corrosion in patch repairs of concrete structures10.1016/j.cemconcomp.2006.05.010 ↗
33. Corrosion of reinforcement in concrete repair10.1016/S0950-0618(97)00042-1 ↗
34. A review on surface treatment for concrete—part 2: performance10.1016/j.conbuildmat.2016.11.128 ↗
35. Effects of silanes and silane derivatives on cement hydration and mechanical properties of mortars10.1016/j.conbuildmat.2016.11.004 ↗
36. Effect of repair materials on durability indexes of concrete
37. Effectiveness of surface coatings in improving concrete durability10.1016/S0958-9465(02)00087-2 ↗
38. Performance of concrete in aggressive environment10.4334/IJCSM.2008.2.1.021 ↗
39. Long-term performance of surface impregnation of reinforced concrete structures with silane10.1016/j.conbuildmat.2013.07.038 ↗
40. Corrosion inhibitors and other protective systems in concrete repair: concepts or misconcepts10.1016/S0958-9465(03)00044-1 ↗
41. Cementitious coatings for improved corrosion resistance of steel reinforcement10.1016/j.surfcoat.2017.02.036 ↗
42. Molecular modelling and electrochemical evaluation of organic inhibitors in concrete10.1016/j.corsci.2015.07.034 ↗
43. The adsorption and inhibition behavior of two organic inhibitors for carbon steel in simulated concrete pore solution10.1016/j.corsci.2017.01.008 ↗
44. The use of migrating corrosion inhibitors to repair motorways’ concrete structures contaminated by chlorides10.1016/j.cemconres.2004.05.018 ↗
45. Cortec · 2010
46. Lahdensivu · 2012
47. Possibilities to validate design models for corrosion in carbonated concrete using condition assessment data10.1016/j.engstruct.2014.06.038 ↗
48. Corrosion assessment of reinforced concrete elements of Torre Velasca in Milan10.1016/j.cscm.2015.12.005 ↗
49. Prostruct 524 · 2010
50. Kruger · 1997
51. Anti-carbonation coatings in extreme environment for durable RC structures
52. Electrochemical realkalisation of carbonated concretes—influence of material characteristics and thickness of concrete reinforcement cover10.1016/j.conbuildmat.2012.09.076 ↗
53. A study on the efficiency of electrochemical re-alkalisation of carbonated concrete10.1016/j.conbuildmat.2005.01.006 ↗
54. Broomfield · 2004
55. Proceq SA · 2017
56. Factors affecting the reliability of assessing the concrete strength by rebound hammer and cores10.1016/j.conbuildmat.2017.02.129 ↗
57. 50 years of experience with the Schmidt rebound hammer
58. FHWA · 1997
59. Influence of carbonation depth on concrete strength evaluation carried out using the SonReb method10.1016/j.ndteint.2013.06.002 ↗
60. Effect of types of aggregate and sand-to-aggregate volume ratio on UPV in concrete10.1016/j.conbuildmat.2016.08.102 ↗
61. CPWD · 2002