Abstract
This examination explains the utilization of bio-polymer powder for clayey soil enhancement. The article concentrates around examining the strength attitude of the clayey soils built up with homogenous bio-polymer. Carboxy methyl cellulose was determined as bio-polymer material to build up the normal soft clayey soil. The biopolymer has been added to the soil with two separated rates (0.5 and 3%) by total weight of soil. Different tests were carried out to consider the impact of utilizing this polymer as a balancing out specialist on the geotechnical properties of soil. It was estimated that as the bio-polymer content expands in the soil, the specific gravity decreases, while the optimum water content (OMC) is expanded. The results showed different effects on Atterberg’s limits; by increasing the liquid limit(L.L) and plasticity index(P.I) while the plastic limit decrease. The tests additionally mirrored a huge improvement in the unconfined compressive strength (UCS) of the treated soils. With the increment in biopolymer content, the consolidation index (Compression index Cc and recompression index Cr) decrease.
Highlights
Deformations occur in all engineering buildings built on soft clayey soils when these soils are subjected to extra loads or owing to clay dissolution when the soil become moist
Disappointment of different designs developed on soft soils in different areas in Iraq were recorded, for example, Amara, Naseriya and Bassra that are portrayed by their weak undrained shear strength (˂ 40 kPa) and compression index as high as 0.3 were accounted for [16]
The useful properties of Carboxy methyl cellulose (CMC) rely upon the level of replacement of the cellulose structure, just as the chain length of the cellulose spine structure and the level of grouping of the carboxy methyl substituents
Summary
Deformations occur in all engineering buildings built on soft clayey soils when these soils are subjected to extra loads or owing to clay dissolution when the soil become moist. Disappointment of different designs developed on soft soils in different areas in Iraq were recorded, for example, Amara, Naseriya and Bassra that are portrayed by their weak undrained shear strength (˂ 40 kPa) and compression index as high as 0.3 were accounted for [16]. In this manner, it is important to improve enormous regions covered by feeble and delicate dirt soil that has made issues to streets and air terminals based on mud soils in light of their low bearing limit. This paper focuses on exploring tentatively the achievability of balancing out and improving the engineering properties of clayey soil utilizing a biopolymer material in various contents
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