Experimental Investigation of Fly Ash and Water Content on the Internal Friction of Concrete

DOI

10.2991/icmmse-17.2017.12How to use a DOI?

Keywords

Internal Friction; Viscoelastic Material; Concrete

Abstract

This paper presents the experimental results of investigation of the effects of fly ash and water content on damping of concrete. Impulse Excitation Technique has been used to measure damping of concrete at the ages of 3, 7, 14, 28 and 56 days. It was found that the more fly ash is added the higher damping at early ages is. At the age of 3 days due to addition of 10%, 20% and 30% of fly ash, damping of concrete is increased by 12.92%, 34,45% and by 49,49%, respectively. At the age of 7 days the values of internal friction can be increased by 12.92%, 34.45% and by 49,49%, accordingly, and by 12.92%, 34,45% and by 49,49%, at 14 days. The less water is added the less valued of concrete damping are. Reducing water content by 10 and 20 liters per cubic meter, concrete damping can be decreased by 9.2% and by 27.00%, at 7 days by 12.8% and by 23.6%, and at 14 days by 7.4% and 17.5%, respectively. After 14 days the changes of damping become less significant, which is related to concrete microstructural changes due to its hardening

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ivan Popov
AU  - Ta-Peng Chang
AU  - Yury Rossikhin
AU  - Marina Shitikova
PY  - 2017/04
DA  - 2017/04
TI  - Experimental Investigation of Fly Ash and Water Content on the Internal Friction of Concrete
BT  - Proceedings of the Second International Conference on Mechanics, Materials and Structural Engineering (ICMMSE 2017)
PB  - Atlantis Press
SP  - 70
EP  - 74
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmse-17.2017.12
DO  - 10.2991/icmmse-17.2017.12
ID  - Popov2017/04
ER  -