A novel technique for determining bond strength development between cement paste and steel

Abstract

/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1016/0008-8846(87)90011-1 Research, 17, 3, pp. 478-88, 1987-05-01 A novel technique for determining bond strength development between cement paste and steel Nakayama, M.; Beaudoin, J. J. Les auteurs presentent les rgsultats des expgriences rgalisges dans le domaine de l'adhsrence et expliquent le rale jou6 par la zone d'interface dans la determination de 1' adhgrence en utilisant les informations obtenues par un examen, au microscope 1 balayage, des surfaces d8tachSes. Cement and ConcreteCENXNT and CONCRETE RESEARCH. Vol. 17, pp. 478-488, 1987 (Received Feb. 19, 1987) ABSTRACT A new technique for determining bond strength between cement paste and steel is described. Internal stess resulting from the hydration process is taken into account. Experimental results of bond strength development are presented. The role of the interface zone in determining bond strength is discussed with reference to information provided by SEM examination of debonded surfaces.

A new polymer nanocomposite repair material for restoring wellbore seal integrity

“…Prior investigations have shown that the cement-shale bond is affected by both cement and shale. Cement shrinkage and growth of the calcium hydroxide crystals at the interfacial zone of cement-bonded surfaces are well-known reasons to weaken cement bond with most interfaces including the cement-shale interface (Nakayama and Beaudoin, 1987;Mehta and Monteiro, 2013). Moreover, the swelling coefficient of the shale formation has a significant impact on interfacial bond between the cement and shale.…”

“…1 (Celia et al, 2005), the steel-cement and rock-cement interfaces are two of the most critical leakage pathways (Carey et al, 2007). While considerable attention has been given to the steel-cement interface (Baldan, 2004;Nakayama and Beaudoin, 1987;Zhai et al, 2006), little effort has been focused on studying the rock-cement interface. This article focuses on repair of the rock-, specifically shale, cement interface for seal integrity.…”

Experimental Investigation on Mechanical Behavior of Anchor and Shotcrete Support System Under Axial Pull-Out Action

“…In addition, the technology also has outstanding advantages such as simple construction, strong engineering adaptability, and signi cant saving of engineering materials (Cheng 2005). Anchor and shotcrete support technology has become one of the most economical and effective support methods applied in underground engineering (Nakayama 1987;Kang 2021).…”