Possible reasons for blowholes on the surface of SCC

Title: Possible reasons for blowholes on the surface of SCC
Author(s): H.-E. Gram, A. Retelius
Paper category : conference
Book title: International RILEM Symposium on Self-Compacting Concrete
Editor(s): O. Wallevik and I. Nielsson
Print-ISBN: 2-912143-42-X
e-ISBN: 2912143713
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 932 - 938
Total Pages: 7
Language: English

Abstract: Sometimes surfaces of SCC do not have the expected appearance. Sometimes the surfaces are covered with lots of blowholes of different sizes and sometimes other surface defects. SCC has been cast in the lab under different climatic conditions to simulate winter and summer. Presently obtained results seem to indicate that blowholes are more easily formed when the casting temperature of SCC is low and when the climate is cold. One driving force for forming blowholes can be the transport of pore water to the cold surface of the mould during the first hours after casting.

Online publication: 2003-08-21
Publication type : abstract_only
Public price (Euros): 0.00