8. Self compacting concrete from local materials in Nepal

Title: 8. Self compacting concrete from local materials in Nepal
Author(s): K.M. Shrestha, J.S. Biswakarma
Paper category : conference
Book title: 5th International RILEM Symposium on Self-Compacting Concrete
Editor(s): G. De Schutter and V. Boel
Print-ISBN: 978-2-35158-047-9
e-ISBN: 978-2-35158-088-2
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 61 - 66
Total Pages: 6
Nb references: 8
Language: English

Abstract: Self compacting concrete [SCC] has basic three principles and requirements viz.
filling ability, passing ability and segregation resistance. The paper reports the development of SCC in Nepal by using local materials i.e. OPC, 53 grade, Udaipur, crushed coarse aggregate (<12mm size-round), Chapagaon, sand (Two sizes: (i) 600 micron to 6mm and (ii)150 micron to 600micron),Belkhu, micro-silica, Superplastisizer (superplast- pc) and fly ash (pozzocrete-63)available in the local market in Nepal. Mix design and proportioning of SCC mixes were based on guidelines given by Okamura and Ozawa. Criteria selected for acceptance of the concrete mix as SCC were; slump value at slump flow test 650mm or higher, blocking ratio at L- box test higher than 0.8 and self level ability testing value in Ubox test not grater than 30mm. In Slump flow test, the acceptable time for SCC to flow 50cm diameter is 2 to 5 seconds. The properties of SCC in fresh and hardened states were found out.

Online publication: 2009-06-16
Publication type : full_text
Public price (Euros): 0.00