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How concrete removal techniques affect the bonding between concrete and repair mortar

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Abstract
<jats:p>Many bonding failures between the substrate and repair mortar are attributed to too aggressive removal of the contaminated concrete and incorrect use of repair materials. To this end, in this study the effect of concrete removal techniques on substrates of different compositions and, as a result, on the bonding with repair mortar has been investigated. Substrate surfaces of different concrete compositions, micro-concrete (MC) and crushed stone concrete (CC), were treated by using three commonly used techniques: grit blasting (GB), jack-hammering (JH), and hydrodemolition/water-jetting (WJ). Automated Laser Measurements (ALM), sand patch tests and surface tensile strength measurements were applied to characterize the substrate surface. According to the results, the co-lateral effects of removal techniques such as WJ are dependent on the concrete mix composition. Moreover, WJ- and JH- treated samples achieved a lower surface tensile strength and bond strength compared to GB-treated slabs.</jats:p>

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MLA
Yazdi, Mohammadali, et al. “How Concrete Removal Techniques Affect the Bonding between Concrete and Repair Mortar.” MATEC WEB OF CONFERENCES, edited by M.G. Grantham and C. Mircea, 2019, doi:10.1051/matecconf/201928902008.
APA
Yazdi, M., Dejager, E., Debraekeleer, M., Gruyaert, E., Van Tittelboom, K., & De Belie, N. (2019). How concrete removal techniques affect the bonding between concrete and repair mortar. In M. G. Grantham & C. Mircea (Eds.), MATEC WEB OF CONFERENCES. Cluj Napoca (Romania). https://doi.org/10.1051/matecconf/201928902008
Chicago author-date
Yazdi, Mohammadali, Elien Dejager, Mats Debraekeleer, Elke Gruyaert, Kim Van Tittelboom, and Nele De Belie. 2019. “How Concrete Removal Techniques Affect the Bonding between Concrete and Repair Mortar.” In MATEC WEB OF CONFERENCES, edited by M.G. Grantham and C. Mircea. https://doi.org/10.1051/matecconf/201928902008.
Chicago author-date (all authors)
Yazdi, Mohammadali, Elien Dejager, Mats Debraekeleer, Elke Gruyaert, Kim Van Tittelboom, and Nele De Belie. 2019. “How Concrete Removal Techniques Affect the Bonding between Concrete and Repair Mortar.” In MATEC WEB OF CONFERENCES, ed by. M.G. Grantham and C. Mircea. doi:10.1051/matecconf/201928902008.
Vancouver
1.
Yazdi M, Dejager E, Debraekeleer M, Gruyaert E, Van Tittelboom K, De Belie N. How concrete removal techniques affect the bonding between concrete and repair mortar. In: Grantham MG, Mircea C, editors. MATEC WEB OF CONFERENCES. 2019.
IEEE
[1]
M. Yazdi, E. Dejager, M. Debraekeleer, E. Gruyaert, K. Van Tittelboom, and N. De Belie, “How concrete removal techniques affect the bonding between concrete and repair mortar,” in MATEC WEB OF CONFERENCES, Cluj Napoca (Romania), 2019.
@inproceedings{8668351,
  abstract     = {<jats:p>Many bonding failures between the substrate and repair mortar are attributed to too aggressive removal of the contaminated concrete and incorrect use of repair materials. To this end, in this study the effect of concrete removal techniques on substrates of different compositions and, as a result, on the bonding with repair mortar has been investigated. Substrate surfaces of different concrete compositions, micro-concrete (MC) and crushed stone concrete (CC), were treated by using three commonly used techniques: grit blasting (GB), jack-hammering (JH), and hydrodemolition/water-jetting (WJ). Automated Laser Measurements (ALM), sand patch tests and surface tensile strength measurements were applied to characterize the substrate surface. According to the results, the co-lateral effects of removal techniques such as WJ are dependent on the concrete mix composition. Moreover, WJ- and JH- treated samples achieved a lower surface tensile strength and bond strength compared to GB-treated slabs.</jats:p>},
  articleno    = {02008},
  author       = {Yazdi, Mohammadali and Dejager, Elien and Debraekeleer, Mats and Gruyaert, Elke and Van Tittelboom, Kim and De Belie, Nele},
  booktitle    = {MATEC WEB OF CONFERENCES},
  editor       = {Grantham, M.G. and Mircea, C.},
  issn         = {2261-236X},
  language     = {eng},
  location     = {Cluj Napoca (Romania)},
  pages        = {8},
  title        = {How concrete removal techniques affect the bonding between concrete and repair mortar},
  url          = {http://dx.doi.org/10.1051/matecconf/201928902008},
  year         = {2019},
}

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