Influence of substrate moisture state and roughness on interface microstructure and bond strength: Slant shear vs. pull-off testing

• Published in: Cement & concrete composites Vol. 87; pp. 63 - 72
• Main Authors: Bentz, Dale P., De la Varga, Igor, Muñoz, Jose F., Spragg, Robert P., Graybeal, Benjamin A., Hussey, Daniel S., Jacobson, David L., Jones, Scott Z., LaManna, Jacob M.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier Ltd 01.03.2018
• Subjects: Bond; Densification; Interface; Moisture; Neutron radiography; Repair material; Roughness; Slant shear; Tension; X-ray radiography; Neutron radiography; Densification; Repair material; Moisture; Roughness; Tension; Slant shear; Bond; X-ray radiography; Interface; Repair Material; Neutron Radiography; X-ray Radiography; Slant Shear

There are conflicting views in the literature concerning the optimum moisture state for an existing substrate prior to the application of a repair material. Both saturated-surface-dry (SSD) and dry substrates have been found to be preferable in a variety of studies. One confounding factor is that so...