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Effect of fiber hybridization on energy absorption and synergy in concrete

Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1338-1349 doi: 10.1007/s17009-019-0558-2

Abstract: In the present study, steel and polypropylene (PP) fibers have been utilized with the intent of obtainingIt was observed that steel fibers are more effective in the improvement of flexural toughness in thepresence of PP fibers.Furthermore, synergy associated with the combination of fibers at different stages of deflection of the

Keywords： hybrid fiber-reinforced concrete     synergy     toughness     steel fibers     polypropylene fibers    

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Experimental study on mechanical properties of a novel micro-steel fiber reinforced magnesium phosphate

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1047-1057 doi: 10.1007/s11709-021-0755-3

Abstract: The micro-steel fibers (MSF) were added to MPC-based concrete to enhance its ductility due to the high

Keywords： magnesium phosphate cement-based concrete     micro-steel fibers     four-point flexural strength     compressive    

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Preparation and characterization of novel carbon molecular sieve membrane/PSSF composite by pyrolysis method for toluene adsorption

Ying Yan, Peng Huang, Huiping Zhang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 772-783 doi: 10.1007/s11705-019-1827-y

Abstract: Carbon molecular sieve membrane (CMSM)/paper-like stainless steel fibers (PSSF) has been manufacturedby pyrolyzing poly (furfuryl alcohol) (PFA) coated on the metal fibers.

Keywords： carbon molecular sieve membrane     stainless steel fibers     pyrolysis     structured fixed bed     toluene    

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Deflection behavior of a prestressed concrete beam reinforced with carbon fibers at elevated temperatures

Mohammed FARUQI, Mohammed Sheroz KHAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 81-91 doi: 10.1007/s11709-018-0468-4

Abstract: Fiber reinforced polymer(FRP) have unique advantages like high strength to weight ratio, excellent corrosion resistance, improving deformability and cost effectiveness. These advantages have gained wide acceptance in civil engineering applications. FRP tendons for prestressing applications are emerging as one of the most promising technologies in the civil engineering industry. However, the behavior of such members under the influence of elevated temperatures is still unknown. The knowledge and application of this could lead to a cost effective and practical considerations in fire safety design. Therefore, this study examines the deflection behavior of the carbon fiber reinforced polymer(CFRP) prestressed concrete beam at elevated temperatures. In this article, an analytical model is developed which integrates the temperature dependent changes of effective modulus of FRP in predicting the deflection behavior of CFRP prestressed concrete beams within the range of practical temperatures. This model is compared with a finite element mode (FEM) of a simply supported concrete beam prestressed with CFRP subjected to practical elevated temperatures. In addition, comparison is also made with an indirect reference to the real behavior of the material. The results of the model correlated reasonably with the finite element model and the real behavior. Finally, a practical application is provided.

Keywords： FRP     CFRP     concrete     elevated temperatures     deflections     prestress    

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Optimizing the compressive strength of concrete containing micro-silica, nano-silica, and polypropylene fibers

Fatemeh ZAHIRI, Hamid ESKANDARI-NADDAF

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 821-830 doi: 10.1007/s11709-019-0518-6

Abstract: studies have evaluated the effects of additives such as nano-silica (NS), micro-silica (MS) and polymer fibersIn this study, 12 mix designs containing different percentages of MS, NS, and polymer fibers in threeWhile, polymer fibers don’t have significant effect in compressive strength considering CSCs.

Keywords： mixture method     compressive strength     nano-silica     micro-silica     polypropylene fibers    

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The effect of carbon nanotubes and polypropylene fibers on bond of reinforcing bars in strain resilient

Souzana P. TASTANI,Maria S. KONSTA-GDOUTOS,Stavroula J. PANTAZOPOULOU,Victor BALOPOULOS

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2,   Pages 214-223 doi: 10.1007/s11709-016-0332-3

Abstract: residual resistance and controlled slippage.The aim of this paper is to investigate the local bond of steelmatrix comprises a novel, strain resilient cementitious composite (SRCC) reinforced with polypropylene fibersinvestigation were the material structure (comprising a basic control mix, reinforced with CNTs and/or PP fibersThe test results illustrate that all the benefits gained due to the synergy between PP fibers and CNTselasto-plastic bond response envelope was a result of the confining synergistic effect of CNTs and the PP fibers

Keywords： carbon nanotubes     strain resilient cementitious composite     polypropylene fibers     tensile bending     bond    

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Recent developments in the application of oil palm fibers in cement composites

Emmanuel Owoichoechi MOMOH, Adelaja Israel OSOFERO

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 94-108 doi: 10.1007/s11709-019-0576-9

Abstract: Fibers obtained from different parts of the oil palm tree (Elaeis guineensis) have been under investigationStudies have been carried out investigating the engineering properties and possible applications of these fibersThis review provides information about fibers from different parts of the oil palm, their properties,

Keywords： broom     cement composite     concrete     oil palm fiber     Natural fiber-concrete     sustainability    

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environmental temperature and relative humidity on photocatalytic oxidation of toluene on activated carbon fibers

GUO Ting, BAI Zhipeng, WU Can, ZHU Tan

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 2,   Pages 224-229 doi: 10.1007/s11783-008-0039-3

Abstract: TiO supported on active carbon fiber (TiO/ACF), an absorbable photocatalyst, is a new kind of material applied in air purification. In this paper, the influence of environmental temperature (T) and relative humidity (RH) on the gas-solid adsorption of toluene and the photocatalytic oxidation (PCO) efficiency of adsorbed toluene on TiO/ACF were studied, and then, the purification capability of TiO/ACF was estimated. PCO results showed that although the PCO efficiency increased under high RH and T levels, the amount of adsorption of toluene decreased. Moreover, quantitative analysis results of intermediates indicated that more environmental risk emerged when PCO of toluene was carried out at higher environmental T and RH levels because more toxic intermediates would be accumulated on the TiO/ACF. So, it is significant to control the environmental T and RH conditions in the application of the PCO technique. T = 25°C and RH = 30% is the optimal condition for purifying toluene in our experimental system.

Keywords： application     gas-solid adsorption     technique     TiO/ACF     experimental    

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Speed Up the Development of Industrial Fibers Materials

Ji Guobiao

Strategic Study of CAE 2003, Volume 5, Issue 7,   Pages 24-28

Abstract:

Review of 10 years development of industrial fibers materials indicates that they are still in a continuous

Keywords： China     strengthening     industrial fibers materials     accelerateing the development    

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Review of recent developments in cement composites reinforced with fibers and nanomaterials

Jianzhuang XIAO, Nv HAN, Yan LI, Zhongsen ZHANG, Surendra P. SHAH

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 1-19 doi: 10.1007/s11709-021-0723-y

Abstract: Concrete reinforcement with fibers has a long history.Nowadays, many new fibers associated with high performance and possessing eco-environmental characteristics, such as basalt fibers and plant fibers, have received much attention from researchers.This paper provides an overview of the recent research progress on cement composites reinforced with fibersThe influences of fibers and nanomaterials on the fresh and hardened properties of cement composites

Keywords： cement composites     fiber     nanomaterial     mechanical property     durability    

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Dyeing fine denier polypropylene fibers with phenylazo- β -naphthol-containing sulfonamide disperse

Zhihua CUI, Weiguo CHEN, Jinzong YANG, Shufen ZHANG,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 328-335 doi: 10.1007/s11705-009-0216-3

Abstract: The dyes were applied to coloring of knitted fabrics from fine denier polypropylene fibers by exhaustThen, dye exhaustion, color strength, and color fastnesses of the dyes on the fibers were assessed and

Keywords： polypropylene     FTIR     secondary sulfonamide     Orange     concentration    

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In situ synthesis of FeS/Carbon fibers for the effective removal of Cr(VI) in aqueous solution

Rongrong Zhang, Daohao Li, Jin Sun, Yuqian Cui, Yuanyuan Sun

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 4, doi: 10.1007/s11783-020-1247-8

Abstract: Abstract • FeS/carbon fibers were in situ synthesized with Fe-carrageenan hydrogel fiber. • The doubleTherefore, this study investigates in situ synthesized FeS/carbon fibers with an Fe-carrageenan biomassas a precursor and nontoxic sulfur source to ascertain the removal efficiency of the fibers.The obtained FeS/carbon fibers were used to control a Cr(VI) polluted solution, and exhibited a relativelyThe main mechanisms included the reduction of FeS, electrostatic adsorption of carbon fibers, and Cr(

Keywords： Carrageenan     FeS     Double-helix structure     Hexavalent chromium    

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Mechanically Strong Proteinaceous Fibers: Engineered Fabrication by Microfluidics Review

Jing Sun, Jingsi Chen, Kai Liu, Hongbo Zeng

Engineering 2021, Volume 7, Issue 5,   Pages 615-623 doi: 10.1016/j.eng.2021.02.005

Abstract:

Lightweight and mechanically strong natural silk fibers have been extensively investigated over the(wet spinning, dry spinning, electrospinning, etc.) have been developed to fabricate robust protein fibersthe production and application of protein fibers in various fields., followed by a discussion of recombinant protein fibers.Other sourced protein fibers are also reviewed in detail.

Keywords： Proteinaceous fibers     Microfluidics     Soft materia     l Biomaterials    

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Steel Bridges in China

Pan Jiyan

Strategic Study of CAE 2007, Volume 9, Issue 7,   Pages 18-26

Abstract:

This paper contains a brief introduction of the development of the steelIt also introduces the characteristic requiremens of the material used in steel bridges.

Keywords： steel brigde in China     steel materials     design of steel brigde     structure of steel bridge    

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evaluation and simulation of volumetric shrinkage and warpage on polymeric composite short natural fibers

Jonnathan D. SANTOS,Jorge I. FAJARDO,Alvaro R. CUJI,Jaime A. GARCÍA,Luis E. GARZÓN,Luis M. LÓPEZ

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3,   Pages 287-293 doi: 10.1007/s11465-015-0346-x

Abstract: The shrinkage and warpage of high-density polyethylene reinforced with short natural fibers of GuaduaThese results suggest that it is a highly beneficial use of natural fibers to improve the assembly properties

Keywords： biocomposite     natural fiber     shrinkage     simulation     warpage    

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Title Author Date Type Operation

Effect of fiber hybridization on energy absorption and synergy in concrete

Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI

Journal Article

Experimental study on mechanical properties of a novel micro-steel fiber reinforced magnesium phosphate

Journal Article

Preparation and characterization of novel carbon molecular sieve membrane/PSSF composite by pyrolysis method for toluene adsorption

Ying Yan, Peng Huang, Huiping Zhang

Journal Article

Deflection behavior of a prestressed concrete beam reinforced with carbon fibers at elevated temperatures

Mohammed FARUQI, Mohammed Sheroz KHAN

Journal Article

Optimizing the compressive strength of concrete containing micro-silica, nano-silica, and polypropylene fibers

Fatemeh ZAHIRI, Hamid ESKANDARI-NADDAF

Journal Article

The effect of carbon nanotubes and polypropylene fibers on bond of reinforcing bars in strain resilient

Souzana P. TASTANI,Maria S. KONSTA-GDOUTOS,Stavroula J. PANTAZOPOULOU,Victor BALOPOULOS

Journal Article

Recent developments in the application of oil palm fibers in cement composites

Emmanuel Owoichoechi MOMOH, Adelaja Israel OSOFERO

Journal Article

environmental temperature and relative humidity on photocatalytic oxidation of toluene on activated carbon fibers

GUO Ting, BAI Zhipeng, WU Can, ZHU Tan

Journal Article

Speed Up the Development of Industrial Fibers Materials

Ji Guobiao

Journal Article

Review of recent developments in cement composites reinforced with fibers and nanomaterials

Jianzhuang XIAO, Nv HAN, Yan LI, Zhongsen ZHANG, Surendra P. SHAH

Journal Article

Dyeing fine denier polypropylene fibers with phenylazo- β -naphthol-containing sulfonamide disperse

Zhihua CUI, Weiguo CHEN, Jinzong YANG, Shufen ZHANG,

Journal Article

In situ synthesis of FeS/Carbon fibers for the effective removal of Cr(VI) in aqueous solution

Rongrong Zhang, Daohao Li, Jin Sun, Yuqian Cui, Yuanyuan Sun

Journal Article

Mechanically Strong Proteinaceous Fibers: Engineered Fabrication by Microfluidics

Jing Sun, Jingsi Chen, Kai Liu, Hongbo Zeng

Journal Article

Steel Bridges in China

Pan Jiyan

Journal Article

evaluation and simulation of volumetric shrinkage and warpage on polymeric composite short natural fibers

Jonnathan D. SANTOS,Jorge I. FAJARDO,Alvaro R. CUJI,Jaime A. GARCÍA,Luis E. GARZÓN,Luis M. LÓPEZ

Journal Article