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| dc.description.abstract | This paper investigates fibrous lightweight concrete containing natural fiber of agave sisalana. The fibers were cut
into 60 mm length and put into concrete mixture. Compressive strength and elastic modulus of the concrete mixture
were evaluated. Seven set of cylinder specimen were considered. Each set of the specimens consisted of four cylinder
specimens containing fiber volume fraction of 0%, 0.5%, 0.75%, 1%, 1.25%, 1.5%, and 2%. The concrete mix was
designed to produce a compressive strength of 12 MPa. The test results showed the compressive strength and elastic
modulus increase with the increased fiber contents from 0.5% to 1.5%. The maximum compressive strength was
achieved at the addition of 1.5% fiber content which produced strength of 17 MPa. All fibrous concrete unit-weights
are less than 1850 kg/m
3
which is identified as lightweight concrete criterion. In addition, a model to estimate fibrous
concrete elastic modulus of sisal fiber was proposed. This model was valid for 0.5% up to 1.5% fiber contents. It is
also not recommended to apply sisal fiber content below 1% as gave strength lower than concrete without fiber. | en_US |
