Local Admixtures for Stabilizing Laterites for Building Purposes
|International Journal of Engineering Trends and Technology (IJETT)|
|© 2014 by IJETT Journal|
|Year of Publication : 2014|
|Authors : Olekwu Benjamin Elah
Olekwu Benjamin Elah. "Local Admixtures for Stabilizing Laterites for Building Purposes", International Journal of Engineering Trends and Technology (IJETT), V15(5),220-228 Sep 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
This paper examined the performance characteristics of laterites stabilized with some local admixtures for building purposes. The laterites used in this work were grayish laterite and reddish brown laterite. The admixtures used were powdered locust bean pods (PLBP) gotten from the brownish fruit pods of the locust bean tree (Parkia Filicoidea); dye residue (DR) which is the by-product/residue of indigo dyeing, which is predominantly carried out in Hausa land of Northern Nigeria; rice hush ash (RHA); and the mixture of the three admixtures. The performance characteristics of stabilized laterites examined are drying shrinkage, moisture absorption and compressive strength. Results of the performance characteristics tests carried out show that powdered locust bean pods performs better for stabilizing laterites followed by the combined mixture of the three stabilizers. Reddish brown laterite has been found to perform better with the stabilizers for producing bricks for building purposes. 15% PLBP, 20% DR, 20% RHA and 20% combined mixture of PLBP, DR and RHA are recommended for stabilizing greyish laterite while 20% PLBP, 20% DR, 20% RHA and 20% combined mixture of PLBP, DR and RHA are recommended for stabilizing reddish brown laterite.
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Building Purposes, Compressive Strength, Drying Shrinkage, Local Admixtures, Moisture Absorption, Stabilizing Laterites