Results 51 to 60 of about 16,615,414 (276)
Journal of Civil Engineering and Management, 2020 This paper tested the behaviour of 32 high-strength concrete columns confined by high-strength spirals under concentric compression. The test parameters included unconfined concrete compressive strength, spiral yield strength, volumetric ratio, and ...
Chongchi Hou, Wenzhong Zheng, Wei Chang
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Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source
Effect of Hybrid Fibers on the Mechanical Properties of High Strength Concrete
Tikrit Journal of Engineering Sciences, 2014 In this study, high strength concrete of 75 MPa compressive strength was investigated. The experimental program was designed to study the effect of fibers and hybrid fibers (steel and polypropylene fibers) on the fresh (workability and wet density) and ...
Hamid H. Hussein, Saeed K. Rejeb Hayder T. Abd
doaj
MATEC Web of Conferences, 2017 High volume fly ash concrete becomes one of alternatives to produce green concrete as it uses waste material and significantly reduces the utilization of Portland cement in concrete production.
Solikin Mochamad, Setiawan Budi
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Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies
Advanced Functional Materials, EarlyView.Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke +3 more
wiley +1 more source
Evaluation of the mechanical properties of self compacting concrete using current estimating models. Estimating the modulus of elasticity, tensile strength, and modulus of rupture of self compacting concrete [PDF]
, 2011 This study includes an analysis of the applicability of current models used for estimating the mechanical properties of conventional concrete to self-compacting concrete.
Fernández Gómez, Jaime Antonio +5 more
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Iraqi Journal of Civil Engineering, 2019 The impact of silica fume existence and its content with the duration of curing on concrete compressive strength (ordinary and high) has investigated experimentally.
Abdulnasser Mohammed Abbas +1 more
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Crystals, 2020 In this work, we aimed to solve the problems that exist in the brittleness evaluation method of high-strength concrete through a triaxial compression test of C60 and C70 high-strength concrete.
Ruihe Zhou +4 more
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Advanced Functional Materials, EarlyView.A field‐driven transition from chiral stripes to an achiral fan state is observed in a tetragonal magnet and linked to a temperature‐dependent rotation of the effective Dzyaloshinskii–Moriya interaction axis. This interplay generates pronounced in‐plane anisotropy and provides a new route for controlling chiral spin textures in noncentrosymmetric ...
Victor Ukleev +19 more
wiley +1 more source
Determination of the bilinear stress-crack opening curve for normal- and high-strength concrete [PDF]
, 2008 An improved version of the method proposed to ACI committee 446 and to RILEM TC 187-SOC to determine the fracture parameters of concrete is applied in this study to several mixtures of normal and high-strength concretes.
Sanz Merino, Beatriz +3 more
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