Please wait.'

Page is loading'


Home  > Raw materials & technologies  > Technologies  > Silica fume and metakaolin influence the b...

Sunday, 22 September 2019
pdf
Raw materials & technologies, Technologies

Silica fume and metakaolin influence the bond strength of concrete

Tuesday, 3 December 2013

In a study, three Iranian researchers from the Ashrafi Esfahani Universityinvestigated the factors affecting the bond strength through slant shear tests made on 168 samples in two phases.

Interfacial adhesive in addition to the chemical components of the pozzolan must be considered

Source: Fotolia/Luna

Interfacial adhesive in addition to the chemical components of the pozzolan must be considered

Source: Fotolia/Luna

Effects of silica fume (SF) and two types of metakaolin (MA, MB) replacement with a portion of cement in concrete repair are studied as the first phase. The second phase consists of plain cement slurry (PCS) and bonding slurry (BS) as the interfacial adhesives.

Using polymer-based adhesive adjacent to the water is not suitable

Only metakaolin type B could improve the bond strength, and best results were obtained in PCS applied specimens. Applying BS in concrete repairs exposed to the water was not suitable to be used as an interfacial adhesive. In applying pozzolan the sort of interfacial adhesive in addition to the chemical components of the pozzolan must be considered.

The study is published in: Construction and Building Materials, Volume 51, 31 January 2014, Pages 141-150.

top of page
Comments (0)
Add Comment

Post comment

You are not logged in

register