Publication: A study of usage of coconut shell in lightweight concrete as replacement for coarse aggregate
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Date
2016
Authors
Zakaria Saleh Alabdal Moussa
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Abstract
The high cost of conventional construction materials affecting housing delivery in Malaysia. This has necessitated to find out new material that can be as an alternative material for construction purpose. Synthetic Lightweight aggregate produced from agro - waste as a viable new source of structural aggregate material which mean exactly and for this research using Coconut shell as replacement for coarse aggregate. The use of structural grade lightweight concrete reduce considerably the self-load of a structure and permit larger precast units to be handled. Therefore, this research result present the strength characteristics of concrete produced beside its fresh concrete using coarse aggregate and coconut shell as substitutes for conventional coarse aggregate in gradation of 0%, 25%, 50%, 75% and 100% with an appropriate mix ratio chose to be (1:0.15:1.2:1.8) was used. A total of 60 cubes of size 100 X 100 X 100 mm was casted, tested and their fresh and hardened concrete properties determined. Consequently, the results of the tests that had been done showed that the compressive strength of the concrete found that its decrease linearly as the percentage of the Coconut Shell are increase. Moreover, it found that the concrete that mix with coconut shell was more durable in terms of resistance in water. Also, second main part of this project is the density where after tested obtained densities as less than 2000 Kg/m3 which within the range that specified for lightweight concrete. Also for slump test obtained different values which range between high, medium and low.
Description
TA439.Z34 2016
Keywords
Lightweight concrete