Cementitious bonding agents

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Journal titleConstruction Specifier
Pages110119; # of pages: 10
SubjectCement and Concrete; Concrete; Ciments
AbstractAdhesion of new concrete to old depends on a number of factors, including sur~ face preparation, mechanical compatibility of the two concretes, temperature of the concrete substrate, and ambient temperature conditions at the time the new concrete is placed. Successful bonding also depends on the care exercised in placing the fresh concrete. Some practitioners and building product manufacturers promote the use of bonding agents to augment the bond at the interface. These products reportedly increase adhesion by enhancing wetting and sealing of the concrete substrate, thereby minimizing water loss from the fresh concrete to the substrate. Whether bonding agents effectively improve adhesion bas been debated. Some practitioners contend that they are too often used as substitutes for good concurring conditions and varying fresh concrete slumps.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number37032
NPARC number20375232
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Record identifierf190a607-6968-472f-b833-b35a7ce4737e
Record created2012-07-23
Record modified2016-05-09
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