نتایج جستجو برای: engineered cementitious composites experimental study

تعداد نتایج: 4503035  

Journal: :Periodica Polytechnica-civil Engineering 2022

Recent earthquakes severely damaged short columns due to high lateral stiffness and low ductility. Some conditions, such as reductions in the heights of some compared others on same floor, deep beams, partially buried basements, non-structural walls, cause column effects. The prominent characteristics engineered cementitious composites (ECCs) reinforced with polyvinyl alcohol (PVA) fibers – inc...

2015
L. Ferrara

ID No:180 ABSTRACT In this paper aims a thorough characterization will be performed of the effects of crystalline admixtures, currently employed as porosity reducing admixtures, on the self-healing capacity of the cementitious composites, i.e. their capacity to completely or partially re-seal cracks and, in case, also exhibit recovery of mechanical properties.In this paper aims a thorough chara...

2015
T. Nishiwaki H. Sasaki S. Kwon G. Igarashi H. Mihashi

ID No: 252 ABSTRACT It has been confirmed by some previous research that some types of fiber-reinforced cementitious composites (FRCCs) particularly using synthetic fibers (e.g. polyvinyl alcohol; PVA) has a great capability of self-healing of cracks. In this study, selfhealing capability of FRCCs with the effects of additives such as silica fume and excess PVA dosage were tested. Experimental ...

Journal: :Reviews on Advanced Materials Science 2023

Abstract Due to their advantages such as high tensile strength, low cost of production, easy manufacturing methods, and ease use, cementitious materials are extensively utilized in the construction industry. The applications nanomaterials have been found enhance properties. It allows molecular changes improve material behaviour performance civil infrastructure structures, including buildings hi...

Journal: :international journal of civil engineering 0
m. saiidi university of nevada c. cruz university of nevada d. hillis university of nevada

three unconventional details for plastic hinges of bridge columns subjected to seismic loads were developed, designed, and implemented in a large-scale, four-span reinforced concrete bridge. shape memory alloys (sma), special engineered cementitious composites (ecc), elastomeric pads embedded into columns, and post-tensioning were used in three different piers. the bridge model was subjected to...

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