Materials

Characterization of high-strength cement paste with pristine graphite and heptane-graphite emulsion

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Abstract

Heptane-graphite emulsion or pristine non-oxide graphite was incorporated into high-strength cement paste (HSC) using either a standard paddle mixer or a non-contact low-frequency acoustic resonance mixing technology by ResonantAcoustic® Mixing (RAM), Inc. Compression tests according to ASTM C109 and three-point bending tests were performed at 3 and 7 days as well as at equivalent 28 days by accelerated heat steam curing. A decrease in compressive and flexural strength with the heptane-graphite emulsion was found, while results were inconclusive for compressive strength. Additionally, pristine graphene results with the paddle mixer did not show any improvement either. However, when mixed with acoustic resonance mixing technology 7 day flexural results for pristine, non-oxide powdered graphite in high strength cement paste showed a 73% improvement in flexural strength compared to HSC.

Keywords: resonant acoustic mixing, harden state properties, graphene, graphite, high strength cement paste, graphite-heptane emulsion

How to Cite:

Vandenberg, A., Massucci, D., Adamson, D. & Woltornist, S., (2016) “Characterization of high-strength cement paste with pristine graphite and heptane-graphite emulsion”, International Interactive Symposium on Ultra-High Performance Concrete 1(1). doi: https://doi.org/10.21838/uhpc.2016.110