Thermal Performance of Concrete with Recycled Aggregates from CDW Plants

Bravo, Miguel; Brito, Jorge de; Evangelista, Luís

doi:10.3390/app7070740

Cited by 27 publications

(18 citation statements)

References 21 publications

(25 reference statements)

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“…Analysis of the thermal parameters of various types of concrete is subjected to a number of studies [32][33][34][35][36], the results of which indicate the possibility of using the cement composite as the TES material. In addition, finding new methods to deposit ceramic wastes have a double positive impact on the environment.…”

Section: Introductionmentioning

confidence: 99%

The Use of Heat-Resistant Concrete Made with Ceramic Sanitary Ware Waste for a Thermal Energy Storage

2017

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Abstract:The paper presents the results obtained in the course of a study on the concrete made of aggregate obtained from wastes of sanitary ceramics. Previous examinations proved high in strength and durability of concrete of this type, and it showed a resistance to high temperatures. The material was classified as a fireproof concrete. While searching for the optimal applications of such concrete, a series of examinations and analyses on its thermal energy storage (TES) properties were performed. This paper describes the two-stage experiment on the thermal behavior of the concrete made with sanitary ceramic wastes during cooling processes in comparison to different building materials subjected to the same thermal conditions. On the basis of the thermal, infrared analysis, and suitable calculations, the thermal power and the ability of the composite to store thermal energy was estimated. Finally, it was stated that the concrete made of sanitary ceramic waste aggregate and alumina cement can be recommended as a heat-accumulating material, and in combination with high durability can be used, e.g., for the construction of fireplace bodies.

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Section: Introductionmentioning

confidence: 99%

The Use of Heat-Resistant Concrete Made with Ceramic Sanitary Ware Waste for a Thermal Energy Storage

2017

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“…Incidentally, the use of recycled aggregates in concrete can already exhibit improved thermal performance (Diez, Munoz, Lopez, & Polanco, 2013;Kim, Jeon, & Kim, 2003). Bravo and Evangelista (2017) prepared concretes replacing either just the fine or just the coarse aggregate fraction, in increments, with recycled aggregates (RA). The control concrete, made with virgin aggregates exhibited a thermal conductivity of 2.08 W/mK, just over the limit stated in Eurocode 2 for a specimen at 20°C; substituting virgin aggregates with recycled aggregates lowered the thermal conductivity to a minimum value of 1.2 W/mK.…”

Section: Timbermentioning

confidence: 99%

Novel construction and demolition waste (CDW) treatment and uses to maximize reuse and recycling

Whittaker

Grigoriadis

Soutsos

et al. 2019

Advances in Building Energy Research

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The EU Waste Framework Directive 2008/98/EC states that all member states should take all necessary measures in order to achieve at least 70% re-use, recycling or other recovery of nonhazardous Construction and Demolition Waste (CDW) by 2020. In response, the Horizon 2020 RE 4 project consortium (REuse and REcycling of CDW materials and structures in energy efficient pREfabricated elements for building REfurbishment and construction) consisting of 12 research and industrial partners across Europe, plus a research partner from Taiwan, was set up. For its success, the approach of the Project was manifold, developing sorting technologies to first improve the quality of CDW-derived aggregate. Simultaneously, CDW streams were assessed for quality and novel applications developed for aggregate, timber and plastic waste in a variety of products including structural and non-structural elements. With all products considered, innovative building concepts have been designed in a bid to improve future reuse and recycling of the products by promoting prefabricated construction methods and modular design to ease future recycling and increase value of the construction industry. The developed technologies and products have been put to the test in different test sites in building a twostorey house containing at least 65% of CDW.

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“…The density of this type of concrete typically varies from 2000 kg/m³ to 2100 kg/m³ [Uddin M.T. et al 2014;Bravo M. et al 2017;Khalaf F.M. et al 2004].…”

Section: Introductionmentioning

confidence: 99%

Developing SonReb models to predict the compressive strength of concrete using different percentage of recycled brick aggregate

2022

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The study was conducted to obtain the relationship between non-destructive and destructive tests in concrete cubes using different ratios of normal stone and recycled brick as a coarse aggregate. Variations in the grade of concrete, density, and age were considered to make the model prediction more efficient in places where uses of recycled brick aggregate are common. Normal concrete M20, M25, and M30 grades were considered having density variation by replacing stone into recycled brick aggregate, and age by testing concrete strength at 7, 28, and 84 days. The regression model was created using artificial neural networks and multiple regression analysis. The study shows that the regression model developed using an artificial neural network predicted better results. The obtained models from the experiment were compared with other models provided by different authors. The study also considers the effect of using recycled brick aggregate in nondestructive tests and modulus of concrete.

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Thermal Performance of Concrete with Recycled Aggregates from CDW Plants

Cited by 27 publications

References 21 publications

The Use of Heat-Resistant Concrete Made with Ceramic Sanitary Ware Waste for a Thermal Energy Storage

The Use of Heat-Resistant Concrete Made with Ceramic Sanitary Ware Waste for a Thermal Energy Storage

Novel construction and demolition waste (CDW) treatment and uses to maximize reuse and recycling

Developing SonReb models to predict the compressive strength of concrete using different percentage of recycled brick aggregate

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