Investigating the Effects of Straw & Rice Husk on the Compressive Strength & Tensile Strength of Adobe Brick

Year 2018, Volume: 3 Issue: 3, 242 - 248, 01.11.2018

Sasui Sasui , Watcharin Jinwuth Sirimas Hengrasmee

Abstract

Adobe bricks are extensively used for the construction of adobe houses.
The lack of strength is one drawback of these bricks; therefore the soil used
to build these bricks is stabilized with several natural stabilizers. This study conducted to­­­ compare the effects
of commonly used stabilizers, which are straw and rice husk on the compressive
strength and tensile strength of adobe. Study provided the experimental data
and the analyzed failure pattern of the stabilized and un-stabilized specimens
subjected to unconfined compressive strength test and splitting test. From the
obtained results, the increase in compressive strength, decrease in tensile
strength, increase in the elasticity under compressive loads and no major
failure under compression and tension was observed for the specimens containing
stabilizers. Results revealed the maximum positive effects of straw than rice
husk in improving the adobe’s resistance to the compressive and tensile loads.

Keywords

Adobe brick; Strength; Stabilization; Straw; rice husk

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