Self healing mortars by using different cementitious materials

Title: Self healing mortars by using different cementitious materials
Author(s): K. Sisomphon, O. Copuroglu
Paper category : conference
Book title: International RILEM Conference on Advances in Construction Materials Through Science and Engineering
Editor(s): Christopher Leung and K.T. WAN
ISBN: 978-2-35158-116-2
e-ISBN: 978-2-35158-117-9
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 545 - 552
Total Pages: 8
Nb references: 11
Language: English

Abstract: This research investigates the self healing ability of mortars incorporating different cementitious materials. Ordinary Portland cement, crystalline additive (CA) and calcium-sulfoaluminate based expansive additive (CSA) were used in the study. The experimental results show the self crack closing phenomenon of all mortars, however, to different extent. The ability of crack closing was in the order of Control < CA1.5 < CSA10 < CA1.5/CSA10 where the numbers indicate the percentage of replacement. As observed from the external surface, the CA1.5/CSA10 which contained both CA and CSA shows a rapid self healing process which the surface crack up to 400 microns can be sealed within 28 days. The smaller surface cracks (<200 microns) can be sealed within 14 days. Water passing test confirmed the crack sealing ability of the mortars.

Online publication: 2011-10-31
Publication type : full_text
Public price (Euros): 0.00