Effect of silica fume on self-compacting concrete

Author(s): H. Abdelgader, A. Saud, A. El-Baden
Paper category: Conference
Book title: Rheology and processing of Construction Materials – 7th RILEM International Conference on Self-Compacting Concrete and 1st RILEM International Conference on Rheology and Processing of Construction Materials
Editor(s): Nicolas Roussel and Hela Bessaies-Bey
Print ISBN: 978-2-35158-137-7
e-ISBN: 978-2-35158-138-4
Publisher: RILEM Publications SARL
Pages: 139-146
Total Pages: 8
Language: English

This paper presents the results of an experimental research on the workability and compressive strength of self-compacting concrete using local materials in Libya. The work focused on concrete mixes having water/ binder ratios (w/b) of 0.375, 0.40, 0.425 and 0.45. Total binder content, fine/total aggregate ratio (f/t) and fine sand/ crushed sand ratio (fs/cs) were kept constant at the values of: 450 Kg/m3, 1:1, and 1.5:1 respectively. During the research, Silica fume (SF) replaces Portland cement by percentages of 5, 10 and 15 %. Superplasticizers adjusted according to the SF percentage and w/b ratio in order to achieve a slump flow results in the range of 650- 800 mm. Effect of altering the w/b ratio by addition of SF on some principle characteristics of fresh SCC was investigated. Further, compressive strength at the ages of 7, 28 and 90 days was also determined and results are included here.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00