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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

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Microwave processing of cement and concrete materials ...

Feb 15, 2015  @article{osti_22475485, title = {Microwave processing of cement and concrete materials – towards an industrial reality?}, author = {Buttress, Adam and Jones, Aled and

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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

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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

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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

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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

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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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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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Applications of microwave energy in cement and concrete ...

Microwave heating is a highly efficient technique for various thermal processes. Advantages of microwave heating compared to conventional processing methods include energy-saving rapid heating rates and short processing times, deep penetration of the

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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 ...

Natt Makul. 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 ...

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Recent development of microwave applications for concrete ...

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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Microwave Non-Destructive Testing Technique for Material ...

Nov 07, 2020  Concrete is a nonhomogeneous medium that contains coarse aggregate, sand (fine aggregate), cement powder, water and porosity. Microwave non-destructive testing (NDT) technique is used to simulate three layered media that contains air gap, coarse aggregate and a two layered media that contain rebar and void is modeled as closest to the reality.

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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 any have lead the realisation of a commercial ...

get price

Determination of optimal process for microwave curing of ...

Determination of optimal process for microwave curing of concrete By: Leung, C.K.Y Pheeraphan, T. Material type: Article Subject(s): feedback temperature high strength microwave curing optimal process Summary: Cement and Concrete Research [Elsevier,Netherlands], 27(3);

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Renewable and Sustainable Energy Reviews

dielectric properties of cement and concrete, the mechanisms of microwave processing, the applications of microwave systems for cementitious materials, the health a nd safetyof microwave processing, and future Research and Development (RD) trends. Laboratory-based RD and a practice-based scale innovation approach are discussed.

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PAPER OPEN ACCESS Microwave Curing Effect on Internal ...

Apr 16, 2020  limitations of traditional heating methods. Microwave processing systems are used in a wide variety of industrial applications. Microwave technology was first used in the food and rubber industry [7]. The microwave curing method used in concrete technology leads to high strength in early ages, and allows rapid progress of repair works.

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Moisture Control in Concrete Production Agg-Net

The addition of digital microwave moisture measurement and control into the process provides a simple and cost-effective solution for the concrete producer. The resulting concrete will be consistent batch after batch, improving product quality and reducing wastage or spoilt materials.

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Opportunities and limitations of concrete recycling ...

Concrete is the most commonly used construction material worldwide. When considering the cement quantities manufactured in Germany since 1950 for determining the produced concrete volumes and calculating the amount of concrete that has accumulated in existing buildings and structures, this exercise results in a notional volume of over 12 billion t (Fig. 1).

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Microwave processing of cement and concrete materials ...

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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High Performance Microwave Energy in Cement and Concrete ...

Microwave energy is applied to cure cement-based materials with microwave power and time of application. ... the optimal microwave curing process for concrete was first determined and then was ...

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Microwave Non-Destructive Testing Technique for Material ...

Nov 07, 2020  Concrete is a nonhomogeneous medium that contains coarse aggregate, sand (fine aggregate), cement powder, water and porosity. Microwave non-destructive testing (NDT) technique is used to simulate three layered media that contains air gap, coarse aggregate and a two layered media that contain rebar and void is modeled as closest to the reality.

get price

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 any have lead the realisation of a commercial ...

get price

PAPER OPEN ACCESS Microwave Curing Effect on Internal ...

Apr 16, 2020  limitations of traditional heating methods. Microwave processing systems are used in a wide variety of industrial applications. Microwave technology was first used in the food and rubber industry [7]. The microwave curing method used in concrete technology leads to high strength in early ages, and allows rapid progress of repair works.

get price

Using Microwave Heating to Completely Recycle Concrete

The aim of this study was to develop a technique for the complete recycling of concrete based on microwave heating of surface modification coarse aggregate (SMCA) with only inorganic materials such as cement and pozzolanic materials (silica fume, fly ash). The mechanical properties of SMCA, which was produced using original coarse aggregate (OCA) and inorganic admixtures, as well as its ...

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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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Determination of optimal process for microwave curing of ...

Determination of optimal process for microwave curing of concrete By: Leung, C.K.Y Pheeraphan, T. Material type: Article Subject(s): feedback temperature high strength microwave curing optimal process Summary: Cement and Concrete Research [Elsevier,Netherlands], 27(3);

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CONCRETE MATERIALS AND TESTING - MnDOT

CONCRETE MATERIALS AND TESTING 5-694.100 ... Cementitious material composed of portland cement, blended cements, ground granulated blast furnace slag, and fly ash are acceptable providing the material complies with 3101, 3102, 3103, ... watch the material sampling process whenever possible. September 1, 2003 CONCRETE MANUAL 5-694.113

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Opportunities and limitations of concrete recycling ...

Concrete is the most commonly used construction material worldwide. When considering the cement quantities manufactured in Germany since 1950 for determining the produced concrete volumes and calculating the amount of concrete that has accumulated in existing buildings and structures, this exercise results in a notional volume of over 12 billion t (Fig. 1).

get price

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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Microstructure and Microwave Absorption Properties of ...

Nov 21, 2019  Introduction. Cement-based materials such as concrete and mortar are the most widely used building material at present. These are insulators and a transparent body for electromagnetic waves with weak electrical conductivity [].An important technical method to improve the durability, rheological, mechanical, electrical conductivity and electromagnetic shielding property of cement

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Moisture Control in Concrete Production Agg-Net

The addition of digital microwave moisture measurement and control into the process provides a simple and cost-effective solution for the concrete producer. The resulting concrete will be consistent batch after batch, improving product quality and reducing wastage or spoilt materials.

get price

SUBJECT: FIELD INSPECTION OF PORTLAND CEMENT

Portland cement concrete for use on Department projects must be batched in approved automated Batch Plants, unless otherwise approved by the Regional Materials Engineer. A Concrete Batch Plant Inspector meeting the minimum training requirements as outlined in NYSDOT Materials Procedure 11-01 will be assigned by the Regional Materials

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