Authors: Faris M. Jasim & Tava Mohammed
Abstract:Pavement damage is an inevitable phenomenon, it can be resisted by solutions that strengthen the embankment and they don’t increase the costs greatly. One interesting solution regarded, is the addition of cement kiln dust (CKD) to increase California bearing ratio (CBR) of soil. The main objective of this investigation is to enhance poor soil in the subgrade layer located in the 150 m ring road Erbil. The poorer soil was identified as TP1, located near the junction of Ganjan – Bahrka, 120 meters from the intersection. To achieve these objectives, cement kiln dust (CKD) was added to the soil at five different rates (0.5%, 1%,1.5%,2%, 2.5%) and it was found that 2% CKD was capable of achieving the targeted CBR rate of 25%. The results of this study also confirmed that the applied method has many positive aspects from technical, economic and environmental point of view, that will contribute to improve the design procedures of roads, bridges, service ways, shoulders and culverts.
Keywords: California Bearing Ratio (CBR), Cement Kiln Dust (CKD), Stabilization, Poor Soil, Subgrade Layer
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Ferber, V., Auriol, J. C., Cui, Y. J., & Magnan, J. P. (2009). On the swelling potential of compacted high plasticity clays. Engineering Geology, 104(3-4), 200-210.
Hashemian, L., Kavussi, A., & Aboalmaali, H. H. (2014). Application of foam bitumen in cold recycling and hydrated lime in airport pavement strengthening. Case Studies in Construction Materials, 1, 164-171.
Higashiyama, H., Sano, M., Nakanishi, F., Takahashi, O., & Tsukuma, S. (2016). Field measurements of road surface temperature of several asphalt pavements with temperature rise reducing function. Case Studies in Construction Materials, 4, 73-80.
Ismail, A. I. M., & Ryden, N. (2014). The quality control of engineering properties for stabilizing silty Nile Delta clay soil, Egypt. Geotechnical and Geological Engineering, 32(4), 773-781.
KRG (2013). Ministry of Planning. Regional statistical ofﬁce. Erbil: Statistic Year Book.
Liu, X., Zhang, X., Wang, H., & Jiang, B. (2019). Laboratory testing and analysis of dynamic and static resilient modulus of subgrade soil under various influencing factors. Construction and Building Materials, 195, 178-186.
Ng, K.S., Chew, Y. M., Osman, M. H., & SK, M. G. (2015). Estimating maximum dry density and optimum moisture content of compacted soils.
Mosa, A. M., Taher, A. H., & Al-Jaberi, L. A. (2017). Improvement of poor subgrade soils using cement kiln dust. Case Studies in Construction Materials, 7, 138-143.
Onyelowe, K., Alaneme, G., Igboayaka, C., Orji, F., Ugwuanyi, H., Van, D. B., & Van, M. N. (2019). Scheffe optimization of swelling, California bearing ratio, compressive strength, and durability potentials of quarry dust stabilized soft clay soil. Materials Science for Energy Technologies, 2(1), 67-77.
Puppala, A. J. (2016). Advances in ground modification with chemical additives: From theory to practice. Transportation Geotechnics, 9, 123-138.
Rimal, S., Poudel, R. K., & Gautam, D. (2019). Experimental study on properties of natural soils treated with cement kiln dust. Case Studies in Construction Materials, e00223.
Shafabakhsh, G. H., & Sajed, Y. (2014). Investigation of dynamic behavior of hot mix asphalt containing waste materials; case study: Glass cullet. Case Studies in Construction Materials, 1, 96-103.