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JOURNAL OF RESEARCH IN NATIONAL DEVELOPMENT VOLUME 1 NO 2 OCTOBER 2003

THE STRENGHT AND WORKABILITY CHARACTERISTICS OF MUDCRETE AS LIGHTWEIGHT CONCRETE

BY

MR. AKANINYENE AFANGIDE UMOH
LECTURER AND HEAD OF DEPARTMENT
BUILDING TECHNOLOGY EDUCATION DEPARTMENT
FEDERAL COLLEGE OF EDUCATION (TECH) POTISKUM

ABSTRACT
Concrete which is mainly made by the use of binders, preferably cement, aggregates and water is today widely used in all aspect of building and civil engineering construction such that these materials will go along way in reducing the cost of construction if an alternative is sourced to replace or substitute part of it without affecting the desired characteristic of the concrete. Soil has been one of the materials used in the construction of buildings, but the major problem with it is that of low strength and high maintenance costs. To overcome these problems, in this research the solid matter called ‘Mudcrete’. In the preparation of the mudcrete, four different mix proportions or rations of nine cubes each were cost in 150mm steel mould. The workability range for all the mixes were maintained between 25-50mm levels. The cubes were cured and tested at 7, 14 and 28 days. The compressive strength indicated that ‘Mudcrete’ can attain a strength of 8.6N/mm and 12.8N/mm2 when the soil gravel is washed and sand used as fine aggregate. The density values obtained ranged between 2,163-2, 410kg/m3 at 28 days therefore, ‘Mudcrete’ can be classified as lightweight concrete and as such suitable for building construction especially in rural communities where soil pits are easily available.

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