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Nemkumar Banthia - One of the best experts on this subject based on the ideXlab platform.

  • plant based Natural Fibre reinforced cement composites a review
    Cement & Concrete Composites, 2016
    Co-Authors: Obinna Onuaguluchi, Nemkumar Banthia
    Abstract:

    Abstract The quest for sustainability in construction material usage has made the use of more renewable resources in the construction industry a necessity. Plant-based Natural Fibres are low cost renewable materials which can be found in abundant supply in many countries. This paper presents a summary of research progress on plant-based Natural Fibre reinforced cement-based composites. Fibre types, Fibre characteristics and their effects on the properties of cement-based materials are reviewed. Factors affecting the fresh and hardened properties of cement-based composites reinforced with plant-based Natural Fibre are discussed. Measures to enhance the durability properties of cement-based composites containing plant-based Natural Fibres are appraised. Significant part of the paper is then focused on future trends such as the use of plant-based Natural Fibres as internal curing agents and durability enhancement materials in cement-based composites. Finally, applications and recommendations for future work are presented.

Obinna Onuaguluchi - One of the best experts on this subject based on the ideXlab platform.

  • plant based Natural Fibre reinforced cement composites a review
    Cement & Concrete Composites, 2016
    Co-Authors: Obinna Onuaguluchi, Nemkumar Banthia
    Abstract:

    Abstract The quest for sustainability in construction material usage has made the use of more renewable resources in the construction industry a necessity. Plant-based Natural Fibres are low cost renewable materials which can be found in abundant supply in many countries. This paper presents a summary of research progress on plant-based Natural Fibre reinforced cement-based composites. Fibre types, Fibre characteristics and their effects on the properties of cement-based materials are reviewed. Factors affecting the fresh and hardened properties of cement-based composites reinforced with plant-based Natural Fibre are discussed. Measures to enhance the durability properties of cement-based composites containing plant-based Natural Fibres are appraised. Significant part of the paper is then focused on future trends such as the use of plant-based Natural Fibres as internal curing agents and durability enhancement materials in cement-based composites. Finally, applications and recommendations for future work are presented.

Fernando G. Torres - One of the best experts on this subject based on the ideXlab platform.

  • final product testing of rotational moulded Natural Fibre reinforced polyethylene
    Polymer Testing, 2006
    Co-Authors: Fernando G. Torres, C L Aragon
    Abstract:

    The process of rotational moulding of Natural Fibre-reinforced polymers (NFRPs) has been developed recently at POLYCOM. This process allows for the use of discrete Natural Fibres as an efficient reinforcing agent for thermoplastic matrices. In this way, hollow objects with acceptable properties can be produced. The results from different experimental tests carried out on samples taken from rotomoulded cylinders are presented in this paper. Mechanical tests, such as tensile, compression, impact, deep drawing and recovery were performed in order to characterise unreinforced and reinforced Natural Fibre samples. Other properties, such as environmental stress cracking resistance (ESCR) and shrinkage were also assessed. The results obtained indicate that, in most cases, the properties of Natural Fibre-reinforced composites are superior to those of the unreinforced ones. In some cases, however, lower mechanical properties have been reported for the reinforced specimens. The testing methodology described here can be used to assess the properties of both reinforced and unreinforced rotomoulded products.

  • Study of the interfacial properties of Natural Fibre reinforced polyethylene
    Polymer Testing, 2005
    Co-Authors: Fernando G. Torres, M.l. Cubillas
    Abstract:

    Abstract In the present paper, the interfacial properties of extruded and compression moulded Natural Fibre reinforced thermoplastics (NFRTP) are studied. The interfacial shear strength of PE-sisal composites was measured using the single Fibre fragmentation test (SFFT). The difficulties in obtaining significant measurements are discussed and assessed. The main problems found were the non-transparent nature of the matrix, the irregular shape of the Fibres, and the variability in Fibre–matrix adhesion encountered even in single Fibre specimens. Scanning Electron Microscope (SEM) pictures obtained from fractured surfaces were used for a qualitative evaluation of the interfacial properties of NFRTPs. Fibre treatment with stearic acid increased the interfacial shear strength by 23% with respect to untreated Fibres. The improvements in interfacial shear strength found for the treated specimens were consistent with observations from SEM fractographs.

Mohini Sain - One of the best experts on this subject based on the ideXlab platform.

  • a comparative life cycle assessment based evaluation of greenhouse gas emission and social study Natural Fibre versus glass Fibre reinforced plastic automotive parts
    International Journal of Global Warming, 2018
    Co-Authors: Masoud Akhshik, Suhara Panthapulakkal, Jimi Tjong, Mohini Sain
    Abstract:

    Current atmospheric CO2 concentration in our atmosphere is already over 400 ppm, which is 50 ppm beyond our planetary boundary. Every single step towards reducing our carbon emission is important. Fuel saving due to the light weighting of the automotive materials will reduce greenhouse gas emission in the transportation sector, if the light weighting roots from a by-product Natural Fibre, such as sawdust or agricultural waste, the emission reduction would be more effective. The current study is a comparative life cycle assessment based evaluation of greenhouse gas emission of the current plastic engine beauty cover, and Natural Fibre reinforced counterpart. This study also analyses the questionnaire results gotten from 600 new car owners (or leaser) as a small sample of a buyer society.

  • flame retardant and mechanical properties of Natural Fibre pp composites containing magnesium hydroxide
    Polymer Degradation and Stability, 2004
    Co-Authors: Mohini Sain, S.h. Park, F Suhara
    Abstract:

    Flammability of polypropylene, sawdust/rice husk filled polypropylene composites and flame retarding effect of magnesium hydroxide for these composites was studied by horizontal burning rate and oxygen index tests. Effect of flame-retardants such as boric acid or zinc borate in combination with magnesium hydroxide was also studied. It was found that magnesium hydroxide can effectively reduce the flammability (almost 50%) of Natural Fibre filled polypropylene composites. No synergetic effect was observed when magnesium hydroxide was used in combination with boric acid and zinc borate. Marginal reduction in the mechanical properties of the composites was found with addition of flame-retardants.

Fabrizio Sarasini - One of the best experts on this subject based on the ideXlab platform.

  • non destructive testing ndt of Natural Fibre composites acoustic emission technique
    Natural Fibre Composites#R##N#Materials Processes and Applications, 2014
    Co-Authors: Fabrizio Sarasini, C Santulli
    Abstract:

    Abstract: This chapter discusses the use of acoustic emission (AE) as a useful tool for mechanical behaviour monitoring and characterization of Natural Fibre composites. The chapter begins by providing a detailed overview of non-destructive techniques and the principles of the (AE) method. It then reviews the instrumentation and analysis of (AE) data, with particular emphasis on the field of composite materials, thus highlighting the potential of this technique in providing information about the failure of Natural Fibre composites. The chapter includes indications on future trends related to the analysis of (AE) data for the identification and discrimination of failure mechanisms in composite materials, along with a section devoted to sources of further and relevant information.

  • Acoustic emission for monitoring the mechanical behaviour of Natural Fibre composites: A literature review
    Composites Part A-applied Science and Manufacturing, 2009
    Co-Authors: Igor M. De Rosa, C Santulli, Fabrizio Sarasini
    Abstract:

    Abstract In recent years, Natural Fibres are increasingly used as reinforcements for the production of low-cost and lightweight polymer composites: other advantages include non-abrasive nature, high specific properties, and biodegradability. However, their limitations, including moisture absorption, poor wettability and large scattering in mechanical properties, and the not sufficient understanding of mechanisms controlling their mechanical behaviour and failure modes, still confine the use of Natural Fibre reinforced composites in non-structural applications. Acoustic emission (AE) proved useful for its capability of real-time monitoring over the whole material volume and high sensitivity to any process generating stress waves. This paper presents a literature review of AE applications in studies on Natural Fibre composites. The following fields of application are covered: (1) interface studies in single Fibre composite (SFC) tests, (2) damage evolution and failure mechanisms detection and (3) crack propagation, including also current limitations of existing literature and future work.