Comparison of Durability Performance of Conventional and Air-Entrained Self-Compacting Concrete Modified by Metakaolin and Silica Fume

Author(s): Abdulkader Ihssan El Mir, Salem Georges Nehme
Paper category: Conference
Book Title: 8th International RILEM Symposium on Self-Compacting Concrete - SCC 2016
Editor: Kamal H. Khayat
ISBN: 978-2-35158-156-8
e-ISBN: 978-2-35158-157-5
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 387-398
Total Pages: 12
Language: English

Abstract: In order to obtain an adequate pore structure in self-compacting concrete (SCC), durability indicators must be studied and analyzed to reach an optimized SCC mixture. A comparative study between non air-entrained and air-entrained SCC, containing metakaolin (MK) and silica fume (SF) with respect to reference mixtures is conducted. The objective of this study is to compare the effect of cement replacement by MK or SF at similar levels on durability properties. Type of cement and grading curve of aggregates were constant parameters. Water to cement ratio, limestone powder content, air entraining agent and supplementary cementitious materials type as well the content were variable parameters. Air void characteristics, resistance to water penetration, accelerated durability tests such as carbonation and chloride migration were evaluated. Also de-icing salt scaling resistance test is performed. Results indicate that durability of SCC could be highly enhanced incorporating MK or SF but in selective percentages of cement mass replacement.

Online publication: 2016
Publication Type: full_text
Public price (Euros): 0.00