High Strength Concrete Small Hollow Blocks Made with Rock Chips as Aggregates

Abstract:

It is more and more general of using industrial solid waste as the aggregates in construction materials for non-structural applications. But because of the developments and applications of reinforced blocks masonry structure in the modern masonry structure, especially in the mid-high and high storey buildings, there will be a growing interest of using industrial solid waste to produce high strength concrete small hollow blocks for structural applications. This experiment by mixing the different proportions of rock chips within the range of 30-70% as the replacement for sand prepared high strength concrete small hollow blocks which the compressive grade is MU 15.0, the influence of aggregates grading on the compressive strength of high strength concrete small hollow blocks was investigated at the same water/cement (w/c) ratio (0.45). In addition, the influence of the different curing methods on the compressive strength and shrinkage of high strength concrete small hollow blocks were also investigated, test results showed that high strength concrete small hollow blocks under the curing method which is the one-time pouring the ample amount of water, covered and sealed with plastic sheeting, the compressive strength had a better development, and the total shrinkage was larger than others.

• Periodical: Advanced Engineering Forum (Volume 5)
• Pages: 333-338
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.5.333
• Online since: July 2012
• Authors: Yong Quan Zhang, Jie Yuan, Yong Ge
• Keywords: Curing Methods, Fractal Dimension, High Strength Concrete Small Hollow Blocks, Rock Chips, Shrinkage

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