Flexural strength of fiber cement flat sheets
In accordance with ASTM C1185 and ASTM C1186, natural fiber
cement flat sheets mixed with 5%, 10% and 15% of coconut coir and
oil palm fibers by weight of Portland cement were tested to determine
the flexural strengths, as shown in Fig. 7. The mix proportion
with 15% of cellulose fiber was difficult for casting a flat sheet,
which in this study the specimens of the size15 30 0.5 cm
were used. Moreover, the results shows that the flexural strength
of both fiber cement flat sheets with the fiber ratio of 10–15%
had similar flexural strengths exceeding 4 MPa (or 40 kg/cm2) in
accordance with the ASTM C1186 standard. In addition, compared
to previous researches [1,21,24], the results are similar and consistent:
ratios between 2% and 5% for both coconut coir fiber and oil
Flexural strength of fiber cement flat sheetsIn accordance with ASTM C1185 and ASTM C1186, natural fibercement flat sheets mixed with 5%, 10% and 15% of coconut coir andoil palm fibers by weight of Portland cement were tested to determinethe flexural strengths, as shown in Fig. 7. The mix proportionwith 15% of cellulose fiber was difficult for casting a flat sheet,which in this study the specimens of the size15 30 0.5 cmwere used. Moreover, the results shows that the flexural strengthof both fiber cement flat sheets with the fiber ratio of 10–15%had similar flexural strengths exceeding 4 MPa (or 40 kg/cm2) inaccordance with the ASTM C1186 standard. In addition, comparedto previous researches [1,21,24], the results are similar and consistent:ratios between 2% and 5% for both coconut coir fiber and oil
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