Potentials of Cement Kiln Dust-Periwinkle Shell Ash Blends on Plasticity Properties of Two Selected Tropical Soils for use as Sustainable Construction Materials

Abstract

This paper investigated the effect of cement kiln dust (CKD) and periwinkle shell ash (PSA) on the plasticity characteristics of two lateritic soil. Two Soils (termed soil A and B) were collected from two selected locations within Osun State, Nigeria. Air-dried soil was treated with CKD and PSA blend in order of 0, 5, 10, 15, and 20% for CKD and 0, 2, 4, 6, 8 and 10% for PSA by dry weight of soil. The specific gravity of both soils increased with increase in CKD and PSA fillings. The Index properties such as Atterberg’s limit (liquid limit, LL, plastic limit, PL, and plasticity index, PI), percentage fines content of the soils was determined. The index properties results showed that the two soils are clayey soil of low plasticity. There was a general decrease in the Atterberg’s limits (liquid limit, LL and plastic limit, PL). The scan electron microscopy (SEM) and electron diffraction spectroscopy of treated soil revealed the formation of crystalline products of calcium silicate hydrate (CSH) and calcium aluminate hydrate (CAH) which was responsible for strength gain. Based on preliminary investigations, the study concluded that the combination of CKD-PSA blends is a viable stabiliser for the two tropical soils under consideration to be used as sub-base construction.

Effect of sugarcane bagasse ash and plantain leaf ash on geotechnical properties of clay soil from Efab Estate, Awka, Anambra State

“…Hence the significant decrease in liquid and plastic limit values. Similar findings have been documented [19,21,22].…”

Cement Kiln Dust (CKD): Potential Beneficial Applications and Eco-Sustainable Solutions

“…The study concluded that the composite sample achieved the optimum engineering properties at 15% CKD and 15% FA. An investigation of the effect of using CKD and periwinkle shell ash (PSA) blends on the plasticity of lateritic soil was carried out by Ekpo et al (2021) [49]. CKD at 0, 5, 10, 15, and 20% was used for soil treatment.…”

Role of extreme vertex design approach on the mechanical and morphological behaviour of residual soil composite

“…It is important to note that the amendment of soil with non-conventional ameliorants which are sustainable and economical, has proved to be very successful due to their ability to perform anticipated outcomes in the geotechnical parameters of soft clay soil compared to conventional ameliorants. Thus, the emerging advances in construction materials have proved that diverse ameliorants rich in alumina and silica such as sawdust ash—quarry dust 5 , cement kiln dust—rice husk ash 6 , cement kiln dust—metakaolin 7 , 8 , cement kiln dust 9 , periwinkle shell ash 10 , oyster shell ash 11 , 12 , quarry dust 13 , marble dust—rice husk ash 14 , coconut husk ash 15 , corncob ash 16 , locust bean waste ash 17 , 18 , groundnut shell ash 19 – 21 , lime-rice husk ash 22 , bambara nut shell ash 23 , yam peel ash 24 , metakaolin 25 , mine tailings 26 , palm bunch ash 27 , cement kiln dust-periwinkle shell ash 28 , 29 , cow bone ash—waste glass powder 30 , sawdust ash—lime 31 , rice husk ash—sisal fibre 32 , coffee husk ash 33 , construction waste 34 , sawdust 35 , nanosilica 36 , electric arc furnace dust 37 , iron ore tailing 38 and so on have been utilised in the amendment studies of deficient soils and concrete structures. Conclusively, as a result of the positive outcomes recorded by the incorporation of solid wastes in soil amelioration studies, a comprehensive review was carried out on the trends in expansive soil stabilization using calcium-based stabilizer materials 39 .…”