Mechanical properties of grouts at various curing times

Mirza, Ali and Aziz, Naj and Ye, Wang and Nemcik, Jan (2016) Mechanical properties of grouts at various curing times. In: 2016 Coal Operators' Conference, 10-12 Feb 2016, Wollongong, Australia.

Abstract

The uniaxial compressive strength, elastic modulus and creep of two commonly used grout products in Australian coal mining industry, Jennmar Bottom-Up 100 (BU100) and Orica Stratabinder HS were studied. A 50 mm cube mould was used to cast samples. The Uniaxial compressive strength of
the samples with curing time, ranging from 1 to 28 days was determined, using an Avery compression testing machine. Secant, tangent and 50 kN range elastic modulus of grout products were investigated under cyclic loading at a 1 mm/min loading rate. Both strain gauged and non-strain gauged samples were tested for determination of the elastic modulus in compression. Strain gauged samples were
prepared to evaluate creep values of BU 100 and Stratabinder HS under 100 kN compression load for
15 min. It was found that Stratabinder HS had higher uniaxial compressive strength and elastic modulus
after a day of curing in comparison to BU 100. Stratabinder HS showed lower creep values by 0.04% when compared with BU 100.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: No paper in these proceedings is to be re-published unless with written permission from the conference organisers and/or the original authors who maintain the copyright for their work.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 12 Jun 2017 04:21
Last Modified: 10 Jul 2017 03:15
Uncontrolled Keywords: grouts; coal mining; Australia
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering
URI: http://eprints.usq.edu.au/id/eprint/30787

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