Crushing Strength and Physical Characteristics of Palm Kernel Shell Concretes
- Author Udeme Hanson Iron
- DOI http://wwj
- Country : Nigeria
- Subject : Civil Engineering
Keywords : Palm Kernel Shell, Crushing Strength, Workability, Crushed stone and Mix proportions
Abstract
The Crushing strength and other properties of palm kernel shell concrete were investigated in this study. The palm kernel shells were partially used to replace crushed stone in the concrete. Three concrete mix ratios of 1:1½:3, 1: 2: 4 and 1: 3: 6 were used for the study with a water-cement ratio of 0.6 for each mix. The crushed stone were replaced at 100%, 80%, 60%, 40%, 20% and 0% by palm kernel shell aggregate. Mixing was done manually and the workability of each mix was determined using the slump test. The crushing strength of the concrete was determined at 7, 14 and 28 days for each mix. For 1: 1.5: 3 concretes, strength of approximately 20N/mm2 was attained at eighty percent replacement of crushed stone by palm kernel shell aggregate. Moreover, strength of 20N/mm2 was realized at forty percent replacement for 1:2:4 concrete and for 1: 3: 6 palm kernel shell concrete a strength of 16.5N/mm2 was only attained at 20% replacement of crushed stone by palm kernel shell. Concretes with low palm kernel shell content yielded strengths suitable for structural construction. Palm kernel shell concretes had low workability at all mix proportions.
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