Experimental Water Quality Analysis from the Use of High Sulfuric Fly Ash as Base Course Material for Road Building

  • N. Viet Duc Faculty of Civil Engineering, Thuyloi University, Hanoi, Vietnam
Keywords: fly ash with high sulfur, base course material, real road testing, water quality analysis, chemical admixture


Water quality directly influences human life. Drinking water contamination can result in severe health problems. This paper deals with the analysis of water specimens from submergence of material containing high sulfuric fly ash as base course material for road building. The specimens were obtained from real road testing. Results showed that for the material that used fly ash and chemical admixture, water quality was suitable for drinking in accordance with the standard parameters prescribed by the Vietnam Ministry of Health, while for the material that used the same fly ash without chemical admixture, the total arsenic content was eight times higher than that of the former. Thus, if one desires to utilize fly ash with high sulfur as base course material for road building, it needs to be used in combination with appropriate chemical admixture, so that it would not affect ground water quality.


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