ENGINEERING PROPERTIES OF SOFT CLAY STABILIZED WITH LIME MATERIALS, EMULSIFIED ASPHALT AND BENTONITE SODIUM FOR SUB GRADE OF ROAD UNDER CONSTRUCTION IN HILLA CITY-BABYLON GOVERNORATE
Journal: International Journal of Civil Engineering and Technology (IJCIET) (Vol.7, No. 5)Publication Date: 2016-10-24
Authors : Jaffar H. A. Al-Zubaydi Amer A.L. Al-Kaildy; Mohammed Q. K. Al-Rubaey;
Page : 347-367
Keywords : soil stabilization; Quick Lime; Emulsion Asphalt; powder lime stone; Na-bentonite.;
Abstract
The aim of the research is to study the effect of the additives (Na-bentonite, Emulsion Asphalt, Powder Lime Stone and Quick Lime) on the stability and the increase of bearing of selected soils in Hilla City. under construction sites were selected in the Hilla City including( Wardiya Street), and with depths of one meter, The physical, chemical and engineering properties of soil were studied and the soils were treated with(5%,10%,15%) additives for the purpose of installiy the soils .The following test were done for treated sample: atterberg limits (liquid limit, Plasticity index, and Plastic limit, Standard compaction test, the California bearing test, the unconfined compressive test and permeability test, all samples were treated with the same maturing condition ( moisture content and temperature). The results shown that the Plasiticity index (P.I) and Liquid limit (L.L) were decreased with addition of Quick Lime, powder Lime Stone and Emulsion Asphalt) and they were increased with the addition of Na-bentonite, The value of the California bearing ratio (C. B. R) were increased with the addition (Quick Lime and powder limestone) and the highest value was obtained with addition of(10%) powder limestone, while the value were decreased with the addition of (Nabentonite, and Emulsion Asphalt) and the lowest value was obtained with addition of 15% Nabentonite, The results are also showed that the values of the permeability were increased with the addition of (Quick Lime and powder limestone) and the highest value was obtained when adding(15%) powder limestone, The values of the permeability were decreased with addition of (Na-bentonite, and Emulsion Asphalt) and the lowest value for the permeability was obtained when adding (15%) Na-bentonite. It was concluded that the value of the unconfined compressive test increased with the addition of (Quick Lime and powder limestone) and the highest value was obtained when adding(10%) powder limestone and slightly increased with the addition of (Na-bentonite, and Emulsion Asphalt). It was found that the value of the maximum dry density is decreased and the optimum moisture content is increased with the addition of (Quick Lime, Emulsion Asphalt and Na-bentonite ) and increase of the value of the maximum dry density value and the decrease of the optimum moisture content with the addition of powder limestone (CaCo3). The study showed that the best stabilizer for the case study (Hilla City) is the (lime stone dust) and the best instally ratio is (10 % ).
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