Effects of fabric parameters on the tensile behaviour of sustainable cementitious composites

Cevallos, Oscar A.; Olivito, Renato Sante

doi:10.1016/j.compositesb.2014.10.004

Cited by 90 publications

(52 citation statements)

References 31 publications

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“…Tests were performed on a Schenk 100kN universal testing machine model, with automatic displacement control and a load measurement precision of over 0.3% for reading up to 1kN. Seven specimens of one steel cord and seven steel strips were tested in accordance with internal procedure, which was based on Standard ASTM D5034-95(2001) [30] and two previous tests reported in the literature [13,31]. The testing machine displacement rate was 1 mm/min, according to results obtained by Dr. García [32].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Strengthening masonry vaults with organic and inorganic composites: An experimental approach

et al. 2015

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Section: Accepted Manuscriptmentioning

confidence: 99%

Strengthening masonry vaults with organic and inorganic composites: An experimental approach

et al. 2015

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“…In the majority of the studies about cement composites reinforced with natural fibers, the reinforcement is in the form of short fibers (usually pulps) randomly dispersed on the matrix [2,3,4,5,6,7,8,9,10] and only a few studies describe the performance of composites with the fibers in the form of textile structures, like directional, woven, or nonwoven fabrics [11,12,13,14,15]. The randomly dispersed fibers allow significant improvements on the flexural strength and ductility of the cement composites, but these improvements are limited by the short length of the fibers (usually in the order of 2–10 mm to few cm) and the maximum quantity that it is possible to mix with the cement matrix [1].…”

Section: Introductionmentioning

confidence: 99%

Tensile and Flexural Properties of Cement Composites Reinforced with Flax Nonwoven Fabrics

et al. 2017

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Abstract:The aim of this study is to develop a process to produce high-performance cement-based composites reinforced with flax nonwoven fabrics, analyzing the influence of the fabric structure-thickness and entanglement-on mechanical behavior under flexural and tensile loadings. For this purpose, composite with flax nonwoven fabrics with different thicknesses were first prepared and their cement infiltration was evaluated with backscattered electron (BSE) images. The nonwoven fabrics with the optimized thickness were then subjected to a water treatment to improve their stability to humid environments and the fiber-matrix adhesion. For a fixed thickness, the effect of the nonwoven entanglement on the mechanical behavior was evaluated under flexural and direct tension tests. The obtained results indicate that the flax nonwoven fabric reinforcement leads to cement composites with substantial enhancement of ductility.

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“…This strengthening system was developed in previous studies conducted by the authors [26,27]. According to these studies, by using a natural hydraulic lime (NHL) matrix, the durability of natural fibers is improved.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Repaired Masonry Elements with Flax-FRCM and PBO-FRCM Composites Subjected to Axial Bending Loads

Cevallos

Olivito

Codispoti

2015

Fibers

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Abstract:In the construction industry, the use of natural fabrics as a reinforcement for cement-based composites has shown great potential. The use of these sustainable composites to provide strengthening or repair old masonry structures that exhibit structural problems mainly due to a poor tensile strength of the mortar/brick joints is revealed to be a promising area of research. One of the most significant load conditions affecting the mechanical response of masonry structures occurs when axial bending loads are applied on the resistant cross-section. In this study, three different types of masonry elements were built using clay bricks and a lime-based mortar. After 28 days, the samples were subjected to concentric and eccentric compressive loads. In order to produce significant bending effects, the compressive loads were applied with large eccentricity, and a sudden failure characterized the behavior of the unreinforced masonry (URM) elements. The tested masonry specimens were repaired using fabric-reinforced cementitious matrix (FRCM) composites produced using bi-directional flax and polyparaphenylene benzobisoxazole (PBO) fabrics. The mechanical behavior of the URM and repaired samples was compared in terms of load-displacement and moment-curvature responses. Furthermore, the results achieved using flax-FRCM composites were compared with those of using PBO-FRCM composites. OPEN ACCESSFibers 2015, 3 492

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Effects of fabric parameters on the tensile behaviour of sustainable cementitious composites

Cited by 90 publications

References 31 publications

Strengthening masonry vaults with organic and inorganic composites: An experimental approach

Strengthening masonry vaults with organic and inorganic composites: An experimental approach

Tensile and Flexural Properties of Cement Composites Reinforced with Flax Nonwoven Fabrics

Experimental Analysis of Repaired Masonry Elements with Flax-FRCM and PBO-FRCM Composites Subjected to Axial Bending Loads

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