Use of Cement Kiln Dust for Improving the Geotechnical Properties of Collapsible Soils

Accidental or deliberate operational discharges of organic chemicals or wastes containing organic chemicals induce geochemical reactions with resultant adverse effects on basic geotechnical properties of the soil. To utilize soil materials from such sites for engineering construction or as foundation soil, stabilization must be carried out. In this study, cement kiln dust (CKD) was applied to lateritic soil contaminated with three different types of commonly occurring organic chemicals namely benzene, ethanol and kerosene to evaluate the restoration and improvements in the engineering properties. Contamination was simulated in the laboratory by adding known quantities (2.5, 5, 7.5 and 10%) of each of the chemicals separately to lateritic soil samples and allowed to air dry for 14 days before stabilizing with 10% CKD. Performance was evaluated on Atterberg limits, compaction characteristics, strength properties and hydraulic conductivity of the contaminated soil. Strength and hydraulic conductivity specimens were compacted with British Standard Light (BSL) compactive effort at predetermined optimum moisture content. Results showed that the simultaneous effects of the cementing and pozzolanic action of the CKD rejuvenated the geotechnical properties of the soil, in most cases comparable to the properties at the original pristine condition. Studies on durability and long term competent performance of the stabilized contaminated soil specimens is in progress.

Download Full-text

Geotechnical Properties of Pond Ash Mixed with Cement Kiln Dust and Polypropylene Fiber

Journal of Materials in Civil Engineering ◽

10.1061/(asce)mt.1943-5533.0002334 ◽

2018 ◽

Vol 30 (8) ◽

pp. 04018154 ◽

Cited By ~ 5

Author(s):

J. Sudheer Kumar ◽

Pankaj Sharma

Keyword(s):

Polypropylene Fiber ◽

Geotechnical Properties ◽

Cement Kiln Dust ◽

Cement Kiln ◽

Pond Ash ◽

Kiln Dust

Download Full-text

Improvement of geotechnical properties of sabkha soil utilizing cement kiln dust

Journal of Rock Mechanics and Geotechnical Engineering ◽

10.1016/j.jrmge.2016.11.012 ◽

2017 ◽

Vol 9 (4) ◽

pp. 749-760 ◽

Cited By ~ 18

Author(s):

Abdullah A. Al-Homidy ◽

Mohammed H. Dahim ◽

Ahmed K. Abd El Aal

Keyword(s):

Geotechnical Properties ◽

Cement Kiln Dust ◽

Cement Kiln ◽

Kiln Dust

Download Full-text

Effect of Cement Kiln Dust on the Geotechnical Properties of Clay in Ede, South-western, Nigeria

LAUTECH Journal of Civil and Environmental Studies ◽

10.36108/laujoces/8102/10(0170) ◽

2018 ◽

Vol 1 (March 2018) ◽

Author(s):

S.I Adedokun ◽

J.R Oluremi ◽

N.T Adekilekun ◽

O.V Adeola

Keyword(s):

Specific Gravity ◽

Soil Sample ◽

Geotechnical Properties ◽

Cement Kiln Dust ◽

Natural Soil ◽

Cement Kiln ◽

Dry Density ◽

Sieve Analysis ◽

Maximum Dry Density ◽

Kiln Dust

This paper investigated the effect of cement kiln dust (CKD) on the geotechnical properties of clay. Soil sample was collected from clay deposit at Ede North Local Government Area, Osun State, which lies within the geographical coordinates of 7N and 4E, was treated with up to 10% CKD. Sieve analysis, specific gravity, consistency limits, compaction (British Standard Light, BSL and West African Standard, WAS) and California Bearing Ratio (CBR) tests were carried out on both treated and untreated soil samples. Results showed that Ede clay is an A-7- 6 soil. Specific gravity increased from 2.61 to 2.91 with increase in CKD from 0 to 10%, maximum dry density (MDD) of the natural soil sample increased from 1.72 and 1.76 g/m’ to 1.84 and 1.85 g/m’ at 8% CKD for BSL and WAS, respectively. The unsoaked CBR of the specimen increased from 17 to 35% for 0-10% addition of CKD, and a similar trend was observed for the 24 hours soaked CBR values. This study indicated that CKD, though regarded as waste material, can be used to improve the geotechnical properties of Ede clay.

Download Full-text