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Mechanical properties of natural fibers reinforced sustainable masonry

✍ Scribed by C. Juárez; B. Guevara; P. Valdez; A. Durán-Herrera

Book ID
104017217
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
702 KB
Volume
24
Category
Article
ISSN
0950-0618

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✦ Synopsis

This research evaluates the physical and mechanical properties of Portland cement masonry blocks reinforced with lechuguilla natural fibers, that were lightened with 2-l bottles of polyethylene terephthalate.

A concrete mix was designed for a target compressive strength of 16 MPa at 28 days, and slump of 70 mm. Masonry concrete blocks with dimensions of 730 Â 340 Â 130 mm were produced for two different fiber lengths (25 and 50 mm) and with fiber contents of 0.25%, 0.50%, 0.75% and 1.0%.

Based on the obtained results, it was found that as the aspect ratio decreases the compressive strength increases and that the use of natural fiber (Vf = 0.5-0.75%) improves masonry post-cracking features, showing a ductile behavior and generating a uniform cracking pattern in the longitudinal sides of the blocks.

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