Effect of Firing Temperature on Abrasive and Compressive Strengths of an Interlocking Compressed Stabilized Earth Block (CSEB)

International Journal of Recent Engineering Science (IJRES)

IJRES Volume 7, Issue 5, Page 44 - 56, 2020

Authors: 

Bakam V. A., Mbishida M. A., Danjuma T., Zingfat M. J., Hamidu L. A. J., Pyendang Z. S.

Abstract: 

The Nigerian Building and Road Research 

Institute (NBRRI) has been involved in the development of an interlocking Compressed Stabilized Earth Block (CSEB), produced from laterite stabilized with cement of 5% weight using a minimum compaction effort of 3N/mm2 to achieve sustainability within the Nigeria’s construction industry. As such, this investigation concerned itself with the determining the effect of Fire Resistance on the compressive and abrasive strengths of the NBRRI interlocking CSEB for a wide range of application towards achieving sustainability. Several laboratory and workshop activities were carried out in the formulation, moulding, curing and testing of the Blocks using standard procedures. At 5% stabilization of the laterite classified as silty SAND, the blocks after being exposed to controlled fire at varying temperatures from 200 0C to 850 0C was discovered to have the highest compressive and lowest abrasive strength of 2.37 N/mm2 and 0.29 cm2/g respectively at 850 0C, and lowest compressive and highest abrasive strength of 1.21 N/mm2 and 3.28 cm2/g respectively at 200 0C. This suggests that the blocks have less capacity to resist wearing off after an exposure to severe fire. Hence, Blocks produced with identical formulation may necessarily require plastering after fire incidents.

Keywords – Compressive strength, Abrasive strength, CSEB, NBRRI

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