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concrete microstructure characterization and performance

concrete microstructure characterization and performance

Concrete Microstructure Characterization and Performance ...

2020-1-30  2.1 Concrete microstructure characterization and performance comparison. This research study had four objectives: (1) To investigate the bonding between coarse aggregates and cement

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(PDF) Concrete Microstructure Characterization and

factors affecting concrete microstructure. Typically, the microstructure is a conse- quence of both the concrete formulation and the processes taking place during mixing, placing and curing.

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Performance Evaluation and Microstructure

Performance Evaluation and Microstructure Characterization of Steel Fiber–Reinforced Alkali-Activated Slag Concrete Incorporating Fly Ash Hilal El-Hassan , Ph.D. , M.ASCE ; and Said Elkholy , Ph.D.

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Performance evaluation and microstructural ...

2017-8-30  The durability performance of two types of commercially-produced GFRP bars conditioned in moist seawater-contaminated concrete has been examined in this paper through microstructural characterization and measurements of tensile strength of conditioned and unconditioned specimens.

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Portland Cement Paste Microstructure Characterization ...

2016-6-5  High-performance concrete can contain low water to cement ratio (w/c) and have silica fume added to it. Mbogo: Portland Cement Paste Microstructure Characterization using Autogenous Shrinkage and Heat of Hydration (93-104) Page 94 ...

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Microstructural packing- and rheology-based binder ...

2018-1-1  Effect of nano-silica on the hydration and microstructure development of Ultra-high Performance Concrete (UHPC) with a low binder amount Constr. Build. Mater. , 65 ( 2014 ) , pp. 140 - 150 , 10.1016/j.conbuildmat.2014.04.063

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Characterization of surface hardness and microstructure of ...

2018-1-31  The relationship between compressive strength obtained by universal testing machine and rebound value obtained by the hammer of high performance concrete was systematically investigated at the macro level. And a model of high performance concrete strength curve was established from them. At the micro level, the microstructure, hydration products and pore structure of concrete surface were ...

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Characterization of surface hardness and microstructure of ...

Request PDF Characterization of surface hardness and microstructure of high performance concrete The relationship between compressive strength obtained by universal testing machine and rebound ...

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High- and ultra-high-performance concrete produced with ...

2021-1-25  High- and ultra-high-performance concrete produced with sulfate-resisting cement and steel microfiber: Autogenous shrinkage, fresh-state, mechanical properties and microstructure characterization. Author links open overlay panel Fernanda Roberti a Vanessa Fernandes Cesari a Paulo Ricardo de Matos a Fernando Pelisser a Ronaldo Pilar b. Show more.

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(PDF) Characterization and Performance Kejin Wang ...

Setting of concrete is a transition period between the fluidity and rigidity stages (Mindess et al. 2003;Mehta and Monteiro 1986). Concrete setting behavior is controlled by its three-dimensional microstructure development that involves new phase growth, nucleation, percolation, and networking of cement hydration products (Nonat 2006).

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Portland Cement Paste Microstructure Characterization ...

2016-6-5  High-performance concrete can contain low water to cement ratio (w/c) and have silica fume added to it. Mbogo: Portland Cement Paste Microstructure Characterization using Autogenous Shrinkage and Heat of Hydration (93-104) Page 94 ...

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Performance Evaluation and Microstructure

2013-10-30  This study reports on the microstructure, compressive strength, and drying shrinkage of metakaolin (MK) based geopolymers produced by partially replacing MK by oil palm ash (OPA). The OPA was used as raw material producing different molar ratios of SiO 2 /Al 2 O 3 and CaO/SiO 2 . The geopolymer samples were cured at 80#xb0;C for 1, 2, or 4 hours and kept at ambient temperature

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Performance Evaluation and Microstructure

Performance Evaluation and Microstructure Characterization of Steel Fiber–Reinforced Alkali-Activated Slag Concrete Incorporating Fly Ash Hilal El-Hassan , Ph.D. , M.ASCE ; and Said Elkholy , Ph.D.

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3. Cement and Concrete Characterization NIST

2019-11-15  3. Cement and Concrete Characterization. This chapter discusses cement and concrete characterization. It covers both microscopy of various kinds (scanning electron and optical) and x-ray diffraction analysis. Images of cement and concrete microstructure are important in their own right, for analysis and characterization.

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Microstructure and Performance Characterization of a

2021-7-3  Microstructure and Performance Characterization of a Novel Cobalt High-Entropy Alloy. Xueyao Wu 1, Rong Liu 1, Xiaozhou Zhang 1 Matthew X. Yao 2 Metallurgical and Materials Transactions A volume 52, pages 4066–4089 (2021)Cite this article

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Microstructure of Concrete IntechOpen

2016-10-5  Concrete is a composite material that consists of a binding medium and aggregate particles and can be formed in several types. It may be considered to consist of three phases: a cement paste, the aggregate, and the interfacial transition zone (ITZ) between them. In addition to ordinary Portland cement, the essential components of the base of concrete

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Improving the microstructure of ITZ and reducing the ...

2018-8-31  The interfacial transition zone (ITZ) between an aggregate and a cement matrix is known to be the weakest component of concrete; hence, its microstructure is the key factor determining its performance in terms of permeability. The objectives of this study are to strengthen the ITZ and reduce the permeability of concrete using nano-silica, and explore its improvement features under different ...

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Performance evaluation and microstructural ...

Performance evaluation and microstructural characterization of GFRP bars in seawater-contaminated concrete Hilal El-Hassan, Tamer El-Maaddawy * , Abdelrahman Al-Sallamin, Abdullah Al-Saidy * Corresponding author for this work

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ZJU-ETHZ 2021 Summer Seminar:Concrete Carbonation ...

2021-8-13  ZJU-ETHZ 2021 Summer Seminar:Concrete Carbonation and Microstructure characterization 发布者:吴盈颖 发布时间:2021-08-13 浏览次数: 0 主题:Concrete Carbonation and Microstructure characterization 开始时间:2021年8月17日 08:30 会议入口 ...

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Pore Structure Characterization and Transport

2020-10-13  microstructure evolution and macroproperties of - cement-based composites. As a porous material, the pore structure characteristics of cement based materials play an important role in the mechanical properties, transmission performance and durability of structural components (Matusinović et al., 2003; Zhang and Zhang, 2015).

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3. Cement and Concrete Characterization NIST

2019-11-15  3. Cement and Concrete Characterization. This chapter discusses cement and concrete characterization. It covers both microscopy of various kinds (scanning electron and optical) and x-ray diffraction analysis. Images of cement and concrete microstructure are important in their own right, for analysis and characterization.

get price

Portland Cement Paste Microstructure Characterization ...

2016-6-5  High-performance concrete can contain low water to cement ratio (w/c) and have silica fume added to it. Mbogo: Portland Cement Paste Microstructure Characterization using Autogenous Shrinkage and Heat of Hydration (93-104) Page 94 ...

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(PDF) Characterization and Performance Kejin Wang ...

Setting of concrete is a transition period between the fluidity and rigidity stages (Mindess et al. 2003;Mehta and Monteiro 1986). Concrete setting behavior is controlled by its three-dimensional microstructure development that involves new phase growth, nucleation, percolation, and networking of cement hydration products (Nonat 2006).

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Characterization of the Microstructure of the Cement ...

2021-6-16  The main focus of this paper is defined as the characterization of the cement/casing interface microstructure, which is critical for better understanding of the requirements for establishing effective zonal isolation and the long-term integrity of cemented wellbore sections of active wells, as well as the integrity of the abandoned wells.

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ZJU-ETHZ 2021 Summer Seminar:Concrete Carbonation ...

2021-8-13  ZJU-ETHZ 2021 Summer Seminar:Concrete Carbonation and Microstructure characterization 发布者:吴盈颖 发布时间:2021-08-13 浏览次数: 0 主题:Concrete Carbonation and Microstructure characterization 开始时间:2021年8月17日 08:30 会议入口 ...

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Microstructure Synthesis and Characterization of Carbon ...

2019-2-22  A high-toughness performance test, nanoindentation process, and scanning electron microscopy were used to characterize the reinforcement of CNFs in cement composites. Compared with the plain specimen, the addition of CNFs can improve the toughness performance, Young’s modulus, hardness, and microstructure of cement composites.

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Performance and Microstructural Analysis of Lightweight ...

2018-5-2  The influence of two lightweight aggregates (LWA) on concrete and the effects of cement substitution for nanosilica (NS) on the interfacial transition zone (ITZ) and cementitious matrix of concrete in resistance to attacks by magnesium sulfate (MgSO 4 ) are researched in this work. The aggregates evaluated were perlite, which is a lightweight aggregate of open porous structure, and expanded ...

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ERDC/GSL TR-19-24 'Constituent Materials

2020-2-13  process of the ability to transition between systems-level performance and analysis, and compositional material design seamlessly. This previously ... Constituent Materials Characterization for Virtual Concrete Microstructure Generation: Concrete . ERDC/GSL TR-19-24 "Constituent Materials Characterization for Virtual Concrete Microstructure ...

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Microstructure characterization and wear performance of ...

2021-7-14  Microstructure characterization and wear performance of WC-10Co/Ti-6Al-4V coating fabricated via electron beam cladding Surface Coatings Technology ( IF 4.158) Pub Date : 2021-07-10, DOI: 10.1016/j.surfcoat.2021.127493

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