publication . Article . 2016

Deflection hardening of sustainable fiber–cement composites

A O BarrosJoaquim; D Toledo FilhoRomildo; R L LimaPaulo; O J SantosDaniele; M A FontesCintia;
Open Access
  • Published: 01 Mar 2016 Journal: Green Materials, volume 4, pages 18-30 (issn: 2049-1220, eissn: 2049-1239, Copyright policy)
  • Publisher: Thomas Telford Ltd.
  • Country: Portugal
In the present study sisal fiber–cement composites reinforced with 4% and 6% of short fibers were developed and their physical–mechanical behavior was characterized. To ensure the composite sustainability and durability, the ordinary Portland cement matrix was modified by adding fly ash and metakaolin, and the natural aggregate was substituted by 10% and 20% of recycled concrete aggregate. Flat sheets were cast in a self-compacted cement matrix and bending tests were performed to determine the first crack, postpeak strength and toughness of the composites. Cyclic flexural tests were carried out to determine the stiffness variation of composite due to cracking fo...
free text keywords: Natural materials, Composite materials, Structural properties, Science & Technology, SISAL, computer.programming_language, computer, Flexural strength, Composite material, Toughness, Metakaolin, Cement, Cracking, Fly ash, Portland cement, law.invention, law, Materials science
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