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Effect of a superplasticizer at the interface concrete/release agent/formwork



Title: Effect of a superplasticizer at the interface concrete/release agent/formwork
Author(s): S. Bouharoun, Y. Vanhove, C. Djelal, P. De Caro, I. Dubois
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: 191 - 199
Total Pages: 9
Nb references: 8
Language: English


Abstract: The objective of this study is to identify the effect of a superplasticizer based on polycarboxylic ether on the tribological behavior of fresh concrete at the interfaces concrete/formwork and concrete/release agent/formwork. Friction tests on fresh concrete were carried out using a tribometer plan/plan. In order to study the behavior of the superplasticizer close to the formwork, three concretes with 30% of paste and different dosage of superplasticizer were formulated. The results show the role of the superplasticizer on the tribological behavior of fresh concrete. The increased of the dosage of superplasticizer reduces the friction stress. The results also show that the friction stress is more decreased in the presence of release agent.


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