EFFECT OF ADDING POLYACRYLAMIDE POLYMER WITH LIME AND CEMENT KILN DUST ON THE PROPERTIES OF EXPANSIVE CLAYEY SOILS

Authors

  • Qassun S. Mohammed Shafiqu

Keywords:

Expansive soil, Polyacrylamide polymer, Lime, Cement Kiln Dust, Swell, Setrngth

Abstract

Using additives like chemical materials have been determined to be an important procedure for
improving some properties of expansive soils. The present work had attempted to study the influence of adding
various percentages of Polyacrylamide (PAM) polymer on the clayey expansive soil properties mixed with
lime (L) and finely divided particulate Cement Kiln Dust (CKD), which is collected during the production of
Portland cement. The properties are investigated under the influence of adding many percentages of
Polyacrylamide polymer (i.e., 1%, 3% and 5%) with lime and cement kiln dust mixture of (3% lime and 8%
cement kiln dust). The Atterberg limits, compaction, swelling potential, unconfined compression strength
(UCS) and California Bearing Ratio (CBR) tests are carried out on the prepared samples. The results showed
that addition of Polyacrylamide (PAM) polymer with (LCKD) has improved expansive clay soil properties
more than adding (LCKD) alone. The optimum percentage for (LCKD-PAM) that achieves the lower free swell
value and the maximum UCS and CBR values is at (3% L+8% CKD +5% PAM) which shows reducing in free
swell by about 94.5%, increasing in UCS worth by about 262% and 400% for curing period of 7 and 28 days
respectively and improving CBR value to 27 from 5.45.

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Published

2018-06-25

How to Cite

Qassun S. Mohammed Shafiqu. (2018). EFFECT OF ADDING POLYACRYLAMIDE POLYMER WITH LIME AND CEMENT KILN DUST ON THE PROPERTIES OF EXPANSIVE CLAYEY SOILS. GEOMATE Journal, 15(51), 233–239. Retrieved from https://geomatejournal.com/geomate/article/view/1047