Preparation and Properties of Concrete Containing Iron Tailings/Manufactured Sand as Fine Aggregate

Abstract:

High performance concrete was prepared by using iron tailings mixed with manufactured sand. Effects of the content of iron tailings on the performance of concrete were studied. The results show that the slump of concrete containing iron tailings is equal to concrete with river sand when the content of iron tailings is 60%. With the increase of the content of iron tailings, compressive strength of concrete shows a trend of decrease at same age; meanwhile drying shrinkage decreases and is less than the concrete prepared river sand. After 200 times of freeze-thaw cycle, mass loss of concrete with mixed sand is less than 5% and compressive strength loss is less than 25% which are close to concrete with river sand.

• Periodical: Advanced Materials Research (Volumes 838-841)
• Pages: 152-155
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.838-841.152
• Online since: November 2013
• Authors: Guo Dong Zhang, Xiu Zhi Zhang*, Zong Hui Zhou, Xin Cheng
• Keywords: Iron Tailings, Manufactured Sand, Performance of Concrete

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