Fresh properties and mechanical performance of hand-mixed small-batch SHCC

Title: Fresh properties and mechanical performance of hand-mixed small-batch SHCC
Author(s): K. Rokugo, K. Kobayashi, Y. Asano, N. Morii, S.-C. Lim, K. Shinya and H. Hirai
Paper category : conference
Book title: 2nd International RILEM Conference on Strain Hardening Cementitious Composites (SHCC2-Rio)
Editor(s): R.D. Toledo Filho, F.A. Silva, E.A.B. Koenders and E.M.R. Fairbairn
ISBN: 978-2-35158-120-9
e-ISBN: 978-2-35158-121-6
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 313 - 321
Total Pages: 9
Nb references: 4
Language: English

Abstract: A SHCC that can be simply hand-mixed in small batches at a job site was evaluated with regard to its fresh properties immediately after mixing, mechanical performance after hardening, and air permeability, in relation to mixing methods. The workability, compressive strength, and bond strength of the SHCC hand-mixed for 2.5 min were comparable to those of the SHCC made in a mixer. The flexural strength and tensile strength of the former were around 90% of the latter, and the ultimate tensile strain of the former reached approximately 2%, though it was around 60% of the latter. The air permeability of the hand-mixed SHCC scattered more widely than the SHCC made in a mixer, but an increase in the hand mixing time led to smaller air permeability with a smaller scatter.

Online publication: 2012-01-25
Publication type : full_text
Public price (Euros): 0.00

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