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Flexural strength

About: Flexural strength is a research topic. Over the lifetime, 52123 publications have been published within this topic receiving 846504 citations. The topic is also known as: bending strength & modulus of rupture.


Papers
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Journal ArticleDOI
TL;DR: In this article, the binding mechanism and properties of alkali-activated fly ash/slag (AAFS) mortars with various ratios of fly ash to slag were investigated by compressive strength test, flexural strength test and water absorption test, drying shrinkage test, scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis.

289 citations

Journal ArticleDOI
TL;DR: In this paper, the α to γ transformation in ODS martensitic steel has been successfully achieved by introducing the α-to-γ transformation in 13Cr-3W ODS ferritic steels.

288 citations

Journal ArticleDOI
TL;DR: In this article, the effect of CFRP sheets on strength and stiffness of concrete beams is considered for various orientations of the fibers with respect to the axis of the beam, and different modes of failure and gain in the ultimate strength were observed, depending on the orientation of the fiber.
Abstract: The results of an experimental and analytical study of the behavior of damaged or understrength concrete beams retrofitted with thin carbon fiber reinforced plastic (CFRP) sheets are presented. The CFRP sheets are epoxy bonded to the tension face and web of concrete beams to enhance their flexural and shear strengths. The effect of CFRP sheets on strength and stiffness of the beams is considered for various orientations of the fibers with respect to the axis of the beam. Nineteen beams were fabricated, loaded beyond concrete cracking strength, and retrofitted with three different CFRP systems. The beams were subsequently loaded to failure. Different modes of failure and gain in the ultimate strength were observed, depending on the orientation of the fibers.

288 citations

Journal ArticleDOI
TL;DR: In this article, an industrial-used two-stage heat treatment method under relative mild conditions (< 200 °C) was used to treat the boards and the effect of heat treatment on the mechanical properties of wood was investigated.
Abstract: Thermal modification at relatively high temperatures (ranging from 150 to 260 °C) is an effective method to improve the dimensional stability and resistance against fungal attack. This study was performed to investigate the impact of heat treatment on the mechanical properties of wood. An industrially-used two-stage heat treatment method under relative mild conditions (< 200 °C) was used to treat the boards. Heat treatment revealed a clear effect on the mechanical properties of softwood species. The tensile strength parallel to the grain showed a rather large decrease, whereas the compressive strength parallel to the fibre increased after heat treatment. The bending strength, which is a combination of the tensile stress, compressive stress and shear stress, was lower after heat treatment. This decrease was less than the decrease of only the tensile strength. The impact strength showed a rather large decrease after heat treatment. An increase of the modulus of elasticity during the bending test has been noticed after heat treatment. Changes and/or modifications of the main wood components appear to be involved in the effects of heat treatment on the mechanical properties. The possible effect of degradation and modification of hemicelluloses, degradation and/or crystallization of amorphous cellulose, and polycondensation reactions of lignin on the mechanical properties of heat treated wood have been discussed. The effect of natural defects, such as knots, resin pockets, abnormal slope of grain and reaction wood, on the strength properties of wood appeared to be affected by heat treatment. Nevertheless, heat treated timber shows potential for use in constructions, but it is important to carefully consider the stresses that occur in a construction and some practical consequences when heat treated timber is used.

287 citations

Journal ArticleDOI
TL;DR: In this article, the effect of different concentrations of long multi-walled carbon nanotubes (MWCNTs) and short MWCNTs ( aspect ratio of about 157) in cement paste was investigated.

287 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20243
20233,785
20226,968
20213,940
20203,386
20193,138