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microwave processing of cement and concrete materials

microwave processing of cement and concrete materials

Microwave processing of cement and concrete materials ...

Feb 01, 2015  Providing the process is optimised for the material to be treated, microwave assisted curing of cement and concrete could yield benefits in terms of reductions in processing time; energy efficiencies and cost, in addition to increased material

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Microwave processing of cement and concrete materials ...

Feb 15, 2015  OSTI.GOV Journal Article: Microwave processing of cement and concrete materials – towards an industrial reality?

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Microwave processing of cement and concrete materials ...

The development of microwave-based processing technologies for cement and concrete materials has been reviewed. For a particular application, the processing technology is at varying degrees of

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Microwave processing of cement and concrete materials ...

Each year a substantial body of literature is published on the use of microwave to process cement and concrete materials. Yet to date, very few if any have lead the realisation of a commercial scale industrial system and is the context under which this

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Adam Buttress - Microwave Processing of Cement and ...

microwave-based processing techniques to enhance production, processing and recycling of cement and concrete materials. Applications reviewed include pyro-processing of cement clinker; accelerated curing, non-destructive testing and evaluation (NDTE), and end-of-life processing including radionuclide decontamination.

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Microwave processing of cement and concrete materials ...

Microwave processing of cement and concrete materials – towards an industrial reality? Each year a substantial body of literature is published on the use of microwave to process cement and concrete materials. Yet to date, very few if any have led to the realization of a commercial scale industrial system and is the context under which this ...

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Microwave processing of cement and concrete materials ...

Feb 01, 2015  Abstract. Each year a substantial body of literature is published on the use of microwaves to process cement and concrete materials. Yet to date, very few if any have lead the realisation of a commercial scale industrial system and is the context under which this review has been undertaken.

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Applications of microwave energy in cement and concrete ...

Sep 01, 2014  Microwave energy use should theoretically be advantageous in the processing of cement and concrete materials (e.g., hydraulic Portland cement, aggregate, and water). These materials exhibit excellent dielectric properties and, therefore, should be able to absorb microwave energy very efficiently and instantaneously convert it into heat.

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Applications of microwave energy in cement and concrete ...

Microwave energy use should theoretically be advantageous in the processing of cement and concrete materials ( e.g., hydraulic Portland cement, aggregate, and water). These materials exhibit excellent dielectric properties and, therefore, should be able to absorb microwave energy very efficiently and instantaneously convert it into heat.

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Recent development of microwave applications for

Feb 01, 2021  For example, materials within concrete have anisotropic properties which is the primary negative effect in the microwave-assist concrete curing process. Proper design of heating equipment, real-time monitoring of heating results, and the material microwave-absorption change can be used to control the uniformity of the heating process.

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Adam Buttress - Microwave Processing of Cement and ...

microwave-based processing techniques to enhance production, processing and recycling of cement and concrete materials. Applications reviewed include pyro-processing of cement clinker; accelerated curing, non-destructive testing and evaluation (NDTE), and end-of-life processing including radionuclide decontamination.

get price

Applications of microwave energy in cement and concrete ...

Advantages of microwave heating compared to conventional processing methods include energy-saving rapid heating rates and short processing times, deep penetration of the (PDF) Applications of microwave energy in cement and concrete – A review miguel martinez -

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Applications of microwave energy in cement and concrete ...

Microwave energy processes for heating, drying, and curing have been developed for numerous laboratory-scale investigations and, in some cases, have been commercialized. Microwave energy use should theoretically be advantageous in the processing of cement and concrete materials (e.g., hydraulic Portland cement, aggregate, and water).

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Applications of microwave energy in cement and concrete ...

Microwave energy use should theoretically be advantageous in the processing of cement and concrete materials ( e.g., hydraulic Portland cement, aggregate, and water). These materials exhibit excellent dielectric properties and, therefore, should be able to absorb microwave energy very efficiently and instantaneously convert it into heat.

get price

Applications of microwave energy in cement and concrete ...

There is an extensive literature on its use in the concrete industry, where the excellent microwave absorbing properties of cement materials allows using microwave heating for several applications ...

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Microwave processing of cement and concrete materials ...

Microwave processing of cement and concrete materials - \ud towards an industrial reality? By A.J. Buttress, D.A. Jones and S.W. Kingman. Abstract. Each year a substantial body of literature is published on the use of microwaves to process cement and concrete materials. Yet to date, very few if any have lead the realisation of a commercial ...

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A Simple, Robust, and On-Site Microwave Technique for ...

measurement of fresh cement paste and concrete. Index Terms— Cement paste, concrete, fresh water-to-cement ratio ( ), microwave testing, monopole antennas. I. I. NTRODUCTION. C. ONCRETE is one of the most widely used materials in the construction industry. It is primarily composed of ce-ment, water, fine aggregate (e.g., sand), and coarse ...

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Microwave-Accelerated Curing of Cement-Based Materials ...

Microwave energy is applied to cure cement-based materials with microwave power and time of application. First, the dielectric permittivity of them during a 24-hour first-hydration period at a frequency of 2.45 ± 0.05 GHz is measured and analyzed. Second, the characteristics of hardened cement paste as subjected to microwave energy with multi-mode rectangular wave guide,

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Microwave heating and deicing efficiency for asphalt ...

10 小时前  When a large number of microwave absorbing materials are added to asphalt mixtures, it is difficult to prepare asphalt concrete with excellent microwave heating performance and engineering performance (Liu, 2018; Gao et al., 2016). In addition, the application of magnetite is difficult to be widely used in pavement due to the limitation of ...

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-PDF- Microwave Assisted Concrete Technology Production ...

While most books on microwave heating focus on the behavior of microwaves, this text centers on the response of materials subjected to microwaves, and specifically concentrates on materials used in the concrete industry. A ready reference for the design of microwave-based equipment, the book describes how microwave-assisted heating technology ...

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Difference between Internal and External Hydration of ...

Oct 31, 2021  Abstract. 1. Introduction. Microwave can accelerate the hydration of cement [1, 2] and supplementary cementitious materials [] to improve the early age compressive strength [4, 5] with little damage to later-age strength and durability [6–8].Therefore, much attention has been paid to the application of microwave curing for the precast concrete production [9–11] or

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10.1016/j.cemconres.2014.11.002 10.1016/j ... - DeepDyve

Jun 11, 2020  Increasing world demand for cement based materials, coupled with the pressing need to develop their more efficient and sustainable use will ultimately promote the adoption of new technologies that improve material resource efficiency within the life-cycle of cement and concrete materials. One of the key drivers for the commercial utilisation of ...

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Microwave Processing – Beyond Food - Features - The ...

Oct 28, 2021  This is significant, because this hybrid heating system unlocks a range of application areas in which microwave processing was previously considered to be unsuitable, such as processing of cement and concrete, glass

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Production of high-early-compressive-strength Portland ...

Jul 17, 2019  The use of low-pressure microwave (MW)–accelerated heating and curing in the production of high-early-strength Portland cement paste (CP) in relation to the processing characteristics and factors affected is investigated. The effects of the pressure in the MW cavity, the feed direction of the MW, and the number of CP specimens per MW curing batch on the

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Applications of microwave energy in cement and concrete ...

Advantages of microwave heating compared to conventional processing methods include energy-saving rapid heating rates and short processing times, deep penetration of the (PDF) Applications of microwave energy in cement and concrete – A review miguel martinez -

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High Performance Microwave Energy in Cement and Concrete ...

The plastic contraction of concrete occuring due to the decrease of the free water and the hydration rate of cement is increased during the microwave curing process.

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Bond between microwave cured repair and concrete substrate

The effect of microwave curing on the bond strength between concrete substrates and various commercial repair materials was determined in a laboratory investigation. Halves of 100 9 100 9 100 mm sub-strate concrete cubes were placed in moulds and the top half of the mould was filled with a repair material to form a 100 mm composite cube. The ...

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Microwave promoted clinkering of sulfoaluminate cement

Each year a substantial body of literature is published on the use of microwave to process cement and concrete materials. Yet to date, very few if

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Microwave-Accelerated Curing of Cement-Based Materials ...

Microwave energy is applied to cure cement-based materials with microwave power and time of application. First, the dielectric permittivity of them during a 24-hour first-hydration period at a frequency of 2.45 ± 0.05 GHz is measured and analyzed. Second, the characteristics of hardened cement paste as subjected to microwave energy with multi-mode rectangular wave guide,

get price

Energy Efficient Microwave Hybrid Processing of ... - OSTI.GOV

Feb 10, 2012  @article{osti_1034621, title = {Energy Efficient Microwave Hybrid Processing of Lime for Cement, Steel, and Glass Industries}, author = {Fall, Morgana L and Yakovlev, Vadim and Sahi, Catherine and Baranova, Inessa and Bowers, Johnney G and Esquenazi, and L, Gibran}, abstractNote = {In this study, the microwave materials interactions were studied

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-PDF- Microwave Assisted Concrete Technology Production ...

While most books on microwave heating focus on the behavior of microwaves, this text centers on the response of materials subjected to microwaves, and specifically concentrates on materials used in the concrete industry. A ready reference for the design of microwave-based equipment, the book describes how microwave-assisted heating technology ...

get price

Microstructure and mechanical properties of microwave ...

cement-based materials (Moukwa et al., 1991; Dongxu and Xuequan, 1994). However, the effect of microwave-acceler-ated curing of Portland cement incorporating pozzolan materials has not been fully investigated. In order to address some of this gap, we examined the effect of 2.45 GHz multi-mode microwave heating on cement pastes containing fuel

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Microwave heating and deicing efficiency for asphalt ...

10 小时前  When a large number of microwave absorbing materials are added to asphalt mixtures, it is difficult to prepare asphalt concrete with excellent microwave heating performance and engineering performance (Liu, 2018; Gao et al., 2016). In addition, the application of magnetite is difficult to be widely used in pavement due to the limitation of ...

get price

Detection of Cracks in Concrete Structure Using Microwave ...

Jun 19, 2016  Cracks in concrete or cement based materials present a great threat to any civil structures; they are very dangerous and have caused a lot of destruction and damage. Even small cracks that look insignificant can grow and may eventually lead to severe structural failure. Besides manual inspection that is ineffective and time-consuming, several nondestructive

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KIT - IHMDepartments and Groups - High Power Microwave ...

Nov 04, 2016  Activities on microwave assisted materials processing for industrial and research use at KIT. Link, G. 2016. International Forum on Advanced Manufacturing Technology and Equipment, Chengdu, China, November 4, 2016 ... 2016. Cement and concrete composites, 73, 54–61. ... A drying and thermoelastic model for microwave ablation of concrete.

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PAPER OPEN ACCESS ... - Institute of Physics

that the microwave heating rate is the best when the fiber volume is 0.4%~1% and the microwave is applied for 30s. Most of these studies focus on the microwave heating performance of asphalt concrete, while there are few studies on cement concrete pavement. At the same time, the above research mostly

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CEMENT RAW MATERIALS - International Cement Review

The UK cement industry has agreed to reduce its primary energy consumption by 25.6% per tonne of cement produced by 2010, from a 1990 baseline. In return, the industry receives an 80% rebate from the Climate Change Levy. The reductions are phased over a number of years (Table 2.2.1) MINERAL PROFILE: CEMENT RAW MATERIALS 2: Extraction and processing

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Influence of Microwave Incinerated Rice Husk Ash ... - Hindawi

This research explains the results of an investigation carried out to understand the influence of a microwave incinerated rice husk ash (MIRHA) powder on foamed concrete (FC) hydration. The experimental work was designed using the Taguchi approach. This method was selected to have a target for the optimum working conditions of the parameter that affects some physical

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