Research on Sand Gradation to Ultra Strength Grouting Material Properties

Abstract:

The gradation of coarse sand, medium sand and fine sand on fluidity initial, final setting time, flexural strength, compressive strength, and other properties and structure, of ultra early strength grouting material, was explored. The quartz sand gradation of cement sand ratio 1.0 was systematically studied. The results showed that, the coarse sand, medium sand and fine sand mixed according to the reasonable distribution, when glue sand ratio was 1.0-1.5, ultra-early-strength grouting material, with final setting time for 50-60(min), the initial fluidity greater than 320(mm), 0.5h fluidity greater than 280(mm), 2h compressive strength of 35.6(MPa), 1d flexural strength greater than 13(MPa), 28d compressive strength over 93(MPa), achieved the free vibration.

• Periodical: Applied Mechanics and Materials (Volume 507)
• Pages: 300-305
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.507.300
• Online since: January 2014
• Authors: Chang Zheng Sun*, Xiao Ping Zhang, Hai Nan Zhao, Qiang Gao
• Keywords: Grouting Material, Mortar Ratio, Sand Gradation, Ultra Strength

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