Study on the Influence of the Tailing Sand on the Performance of Pre-Mixed Mortar

Abstract:

Large applications of pre-mixed mortar and the dwindling natural sand resources make people feel anxiety about the sustainable development of pre-mixed mortar, therefore, it is imperative to find replacement of natural sand. In this paper, several kinds of local tailings are selected. First, the basic performances of tailing sand are analyzed, then, the effect of the tailing sand on the performances of pre-mixed mortar are tested. The tests show that the mortar performance meets the technical requirements absolutely when tailings are used as aggregate mix mortar. When tailings substitute the natural sand, the mortar has qualified consistency and hierarchical degrees, but the strength is slightly lower. The natural sands are added to the limestone with more content of limestone powder which enrich the aggregate gradation, decrease the porosity of the aggregate and increase the fluidity. Also, both the consistency and hierarchical degrees of the mortar are very good. The tailings can be partially or completely substituted for the natural sand to mix the mortar, therefore, the exploitable yield of the natural sand can be reduced. The tailings are very suitable for mixing mortar.

• Periodical: Advanced Materials Research (Volume 739)
• Pages: 287-291
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.739.287
• Online since: August 2013
• Authors: Ya Li Wang, Ming Zhang Lan, Hai Bo Xu
• Keywords: Consistency, Hierarchical Degrees, Pre-Mixed Mortar, Strength, Tailings Sand

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