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Effect Of Go Nanosheets On Shapes Of Cement Hydration Crystals And Their Formation Process

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Effect of GO nanosheets on shapes of cement hydration crystals and their formation process The effects of graphene oxide GO nanosheets with different sizes and dosages on cement hydration crystal shapes and the mechanical strength of cement paste are investigated It is found that flowerlike crystals are more prominent at low GO dosage 003 and polyhedral or lamellar crystals at high

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  • Influence Of Superfine Ettringite On The Properties Of

    Mar 30 2018 As a crystal seed the addition of AFm phase with nano structure can significantly accelerate the hydration exothermic rate of CSA cement paste 18 Similarly superfine ettringite may have the ability to promote the hydration of cementbased materials as ettringite is another kind of hydration product of CSA cement

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  • Effect Of Go Nanosheets On Shapes Of Cement Hydration

    Effect of GO nanosheets on shapes of cement hydration crystals and their formation process The effects of graphene oxide GO nanosheets with different sizes and dosages on cement hydration crystal shapes and the mechanical strength of cement paste are investigated It is found that flowerlike crystals are more prominent at low GO dosage 003 and polyhedral or lamellar crystals at high

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  • Effect Of Graphene Oxide Go On The Morphology And

    It has been generally accepted that the hydration process of cement is mainly controlled by the nucleation and growth of cement hydration products Thus it can be stated that the effect of GO on cement nucleation also plays a significant role in hydration degree of GO reinforced cement

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  • Effect Of Graphene Oxide On The Mechanical Properties And

    Moreover the unique rough surface of GO with many functional groups OH COOH and O has a seeding effect on the hydration kinetics in cement Lv et al 19 found that use of GO nanosheets could produce barlike and flowerlike crystals in OPC that are the hydration products in the system and regarded as the reason for the

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  • A Holistic Review Of Cement Composites Reinforced With

    The understanding of the formation mechanism and shapes of hydration products were further explored by Lv et al focusing on controlling the shapes of hydration products by doping GO nanosheets The formation mechanism of cement hydration products involving GO is illustrated in Fig 8

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  • Ca2554347a1 Controlled Release Of Chemical Admixtures

    Controlled release of chemical admixtures A cementbased composition containing a cementbased material eg cement mortar or concrete and such a controlled release formulation has better workability especially in respect of slumploss characteristics With such a formulation release of an admixture in a cementbased composition may be controlled

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  • Influence Of 2D Rgo Nanosheets On The Properties Of Opc

    Influence of 2D rGO nanosheets on the properties of OPC paste the nanomaterials are perceived to act as nucleation sites for the growth of hydration crystals at early ages Y Ma Q ZhouEffect of GO nanosheets on shapes of cement hydration crystals and their formation process Constr Build Mater 64 0 2014 pp 231239 Google

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  • Mechanical And Sorptivity Characteristics Of Edge

    Lv et al 8 investigated the effects of GO nanosheets on the shapes and formation process of cement hydration crystals They also observed that adding low dosages of GO 003 forms owerlike crystals and polyhedral or lamellar crystals at high dosages 003 Moreover it was noted that compressive strength increased 343 and 381 by adding 003 and 005 of cement weight GO

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  • Effect Of Graphene Oxide On The Rheological Deepdyve

    Oct 15 2015 GO has a large surface area and good mechanical properties 1617 Consequently GO shows a better gain in compressive strength at a lower concentration when compared to CNT reinforced cement 12 The introduction of GO in cement not only can regulate hydration but also improve the tensile flexural and compressive strengths of the cement paste

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  • Toughening Effect And Mechanism Of Graphene Oxide

    The effect of GO nanosheets with different oxygen contents on the shape of cement hydration crystals and the mechanical properties of corresponding mortar were investigated The results indicate

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  • Effect Of Mxene Nanoti3c2 On Earlyage Hydration Of

    MXene has inhibited the Portland cement hydration process the main role of MXene in the cement hydration process is to promote the messy ettringite becoming regular distribution at a node and form network connection structure in the crystals growth process making the mechanics performance of cement paste significantly improved

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  • Highperformance Graphenebased Cementitious

    As demonstrated in previous studies the reinforcing mechanism of GO is attributed to the chemical reaction between GO nanosheets and cement hydration products 25 30 Due to a large amount of oxygen functional groups attached on the GO sheets and its high specific surface area GO promotes the growth of cement hydration crystals by the nucleation effect

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  • Performance Of Rc Beams Rehabilitated With Nsm Cfrp

    Jan 15 2017 This paper presents the results of an experimental study of nearsurface mounted NSM carbon fibre reinforced polymer CFRPrepaired and strengthened reinforced concrete RC beams with innovative highstrength selfcompacting cementitious adhesive IHSSCCA with the particular objective of improving the ductility

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  • Catalytic Behavior Of Graphene Oxide For Cement Hydration

    Hydration is a critical step that determines the performance of cementbased materials In this paper the effect of GO on the hydration of cement was evaluated by XRD and FTIR

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  • A Holistic Review Of Cement Composites Reinforced With

    The understanding of the formation mechanism and shapes of hydration products were further explored by Lv et al focusing on controlling the shapes of hydration products by doping GO nanosheets The formation mechanism of cement hydration products involving GO is

    read the rest
  • Reinforcing Graphene Oxidecement Composite With

    for 14 days The cement hydration crystals were observed on the surfaces in the form of needlelike crystals disorderly stacked corresponding to the cement hydration crystals observed on fracture surfaces concrete matrix while functionalizing the surface of the GO nanosheets with NH 2 groups increases the cohesion and

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  • Effect Of Polyacrylatego Nanocomposites On Properties

    The effects of graphene oxide GO nanosheets with different sizes and dosages on cement hydration crystal shapes and the mechanical strength of cement paste are investigated

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  • Advances In Materials Science And Engineering

    The effects of nanoTiO2 NT on microstructures and mechanical properties of cement mortars were studied by scanning electron microscopy SEM Xray diffraction XRD and mercury intrusion porosimetry MIP Results show that 3 NT can remarkably increase the tensileflexural strengths ie the toughness is improved and promote the precipitation of AFt crystal

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  • Materials Free Fulltext Effect Of Graphene Oxide On

    Response 1 Yes we have rewrote the expression such as but the fact that GO can regulate the formation of flowerlike cement hydration crystals was not found to more appropriate ones Thanks for the comment and suggestion Please see text Line 1718 of page 1 Point 2 Line 42GO nanosheets are expected to be first applied in the

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  • Ettringite Formation Request Pdf

    The effects of graphene oxide GO nanosheets with different sizes and dosages on cement hydration crystal shapes and the mechanical strength of cement paste are investigated

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  • Effect Of Jute As Fiber Reinforcement Controlling The

    The present investigation deals with the effect of jute as a natural fiber reinforcement on the setting and hydration behavior of cement The addition of jute fiber in cement matrix increases the setting time and standard water consistency value The hydration characteristics of fiber reinforced cement were investigated using a variety of analytical techniques including thermal infrared

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  • Effect Of Graphene Oxide Nanosheets Of Microstructure And

    Effects of GO nanosheets on microstructure and mechanical properties of cement composites were investigated by observing shape changes of cement hydration crystals and testing mechanical strength The results indicated that GO nanosheets can regulate formation of flowerlike crystals and remarkably increase the tensileflexural strength of the corresponding cement composites

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  • Effect Of Jute As Fiber Reinforcement Controlling The

    The present investigation deals with the effect of jute as a natural fiber reinforcement on the setting and hydration behavior of cement The addition of jute fiber in cement matrix increases the setting time and standard water consistency value

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  • Microstructure And Microwave Absorbing Properties Of

    Present studies mainly focus on the effects of rGO on the hydration process crystal structure Lv S Liu J Sun T Effect of GO nanosheets on shapes of cement hydration crystals and their formation process

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  • Possible Pitfall In Sample Preparation For Sem Analysis

    This paper presents a discussion of the paper published by Lv et al in Cement and Concrete Composites 2016 66 19 The discussion is mainly focused on whether or not graphene oxide GO nanosheets can regulate formation of flowerlike cement hydration crystals Lv et al in their paper proposed a regulation mechanism stating that GO nanosheets can control ettringite AFt

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  • Shenghua Lv Researchgate

    The effects of graphene oxide GO nanosheets with different sizes and dosages on cement hydration crystal shapes and the mechanical strength of cement paste are investigated

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  • Mechanical And Durability Performance Of Concrete

    S Sharma N C Kothiyal Influence of graphene oxide as dispersed phase in cement mortar matrix in defining the crystal patterns of cement hydrates and its effect on mechanical microstructural and crystallization properties

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