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ISSN : 2456-8643

Title:
COMPRESSIVE AND FLEXURAL STRENGTH OF TERMITE MOUND LIME BLENDED CEMENT MORTAR SUBJECTED TO SULPHATE ENVIRONMENT

Authors:
Alake Olaniyi, Nigeria

Abstract:
This study investigates the compressive and flexural strength of termite mound lime blended cement mortar subjected to sulphate environment, made from mixes containing cement/termite mound, cement/termite mound/lime and cement/lime and sand. Tests were performed on 50 x 50 x 50 mm mortar cube specimens for compressive strength and 50 x 50 x 250 mm prism specimens for flexural strength. Two mix ratios (1:4 and 1:6) and varying binder replacement of cement with lime or termite mound amounting to 0%, 10%, 20%, 30%, 40% and 50%. The strength measurements of mortar were performed at the ages of 7, 14, 21, 28, 56 and 90 days. The specimens were subjected to 2% and 4% MgSO4 environment. The test results showed that the compressive and flexural strength of the mortar increases with age and decrease with percentage replacement of cement with lime and termite mound. The mixes containing cement/termite mound showed relatively higher compressive and flexural strength than other mixes. The paper concluded that all the three types of blended cement tested would perform well at 10% replacement level

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