The regeneration of cement out of Completely Recyclable Concrete: Clinker production evaluation

Schepper, Mieke De; Buysser, Klaartje De; Driessche, Isabel Van; Belie, Nele De

doi:10.1016/j.conbuildmat.2012.09.061

Cited by 34 publications

(13 citation statements)

References 20 publications

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“…We could mention wastes from building demolition activities [15,16], the steel and metalworking industry [17,18], paper industry [19], rock quarrying activity [20], recycled glass [21] and waste generated by communities (sanitation-water treatment [22,23], and municipal waste management [24,25]). …”

Section: Cement Industrymentioning

confidence: 99%

Ability of Two Dam Fine-Grained Sediments to be Used in Cement Industry as Raw Material for Clinker Production and as Pozzolanic Additional Constituent of Portland-Composite Cement

Faure

Smith

Coudray

et al. 2017

Waste Biomass Valor

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other one is calcined in the range 550-1000 °C aiming to obtain a pozzolanic reactive material that could be used as supplementary cementitious material in blended Portland cement. After thermal treatments, the products are characterized and compared to ordinary Portland cement (OPC) and to pozzolanic active materials (fly ash from pulverized-coal power plant). Results showed that each sediment is suitable for the only tested reuse option. For the clinker prepared with SEP sediment, the morphology and the mineralogical composition correspond to those of a typical Portland clinker. Concerning calcined STA pozzolanic activity, the optimum thermal treatment was found to be 900 °C using the chemical Frattini test. Similar compressive strength results were obtained with calcined STA and silico-aluminous fly ash.Abstract Fine-grained sediment deposition is a phenomenon that occurs at different extents in all the reservoirs. This particle accumulation has to be properly managed, in accordance with the operational needs and the environment. As an extracted and on-land managed sediment has to be considered as a waste material according to both European and French regulations, sustainable reuse options need to be investigated. One of them could be a beneficial reuse as a raw material in cement industry either as partial substitution in Portland clinker raw mix or as a supplementary cementitious material (SCM) after thermal treatment in order to activate its possible pozzolanic activity. Two dredged materials, labelled SEP and STA, both from French hydroelectric reservoirs, are characterized on physical, chemical and mineralogical aspects. SEP is used as raw material partial replacement for clinker synthesis and the The original version of this article was revised due to a retrospective Open Access order.

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Section: Cement Industrymentioning

confidence: 99%

Ability of Two Dam Fine-Grained Sediments to be Used in Cement Industry as Raw Material for Clinker Production and as Pozzolanic Additional Constituent of Portland-Composite Cement

Faure

Smith

Coudray

et al. 2017

Waste Biomass Valor

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“…Applying this idea to the production of concrete, a completely recyclable concrete (CRC) was designed. 4,5 After the demolition of a CRC construction, the material cycle is closed as the concrete rubble is given a second life as raw material for cement production, without the need for ingredient adjustments.…”

Section: Introductionmentioning

confidence: 99%

“…The quality of the regenerated clinkers, obtained after burning of the CRC at 1450°C (2642°F), was studied by a mineralogical examination of their production process 10 and quality 4 and a hydration study on the regenerated cements.…”

Section: Introductionmentioning

confidence: 99%

“…16, 17 The importance of the ettringite formation in such systems is explained in detail by Amathieu et al 14 The formation of ettringite from Al 3+ , SO 4 2-, and Ca 2+ ions in the solution dominates the early hydration reactions. It is furthermore known that the rapid hydration of the aluminate phase in OPC is controlled by adding calcium sulfate.…”

mentioning

confidence: 99%

“…It is furthermore known that the rapid hydration of the aluminate phase in OPC is controlled by adding calcium sulfate. When combining CAC and OPC, the SO 4 2-ions will react also with Al 3+ ions from CAC and, subsequently, the retardation mechanism of C 3 A (calcium aluminate, 3CaO·Al 2 O 3 ) by adding calcium sulfate in the OPC system is reversed.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Setting Control of Completely Recyclable Concrete with Slag and Aluminate Cements

Schepper¹,

Maersschalck²,

Driessche³

et al. 2016

ACI Materials Journal

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Management and valorisation of wastes through use in producing alkali‐activated cement materials

Bernal

Rodríguez

Kirchheim

et al. 2016

J of Chemical Tech & Biotech

133

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ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. Abstract 15There is a growing global interest in maximising the re-use and recycling of waste, to 16 minimise the environmental impacts associated with waste treatment and disposal. Use 17 of high-volume wastes in the production of blended or novel cements (including alkali-18 activated cements) is well known as a key pathway by which these wastes can be re-19 used. This paper presents a critical overview of the urban, agricultural, mining and 20 industrial wastes that have been identified as potential precursors for the production of 21 alkali-activated cement materials, or that can be effectively stabilised/solidified via 22 alkali activation, to assure their safe disposal. The central aim of this review is to 23 elucidate the potential advantages and pitfalls associated with the application of alkali-24 activation technology to a wide variety of wastes that have been claimed to be suitable 25 for the production of construction materials. A brief overview of the generation and 26 characteristics of each waste is reported, accompanied by identification of opportunities 27 for the use of alkali-activation technology for their valorisation and/or management. 28

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The regeneration of cement out of Completely Recyclable Concrete: Clinker production evaluation

Cited by 34 publications

References 20 publications

Ability of Two Dam Fine-Grained Sediments to be Used in Cement Industry as Raw Material for Clinker Production and as Pozzolanic Additional Constituent of Portland-Composite Cement

Ability of Two Dam Fine-Grained Sediments to be Used in Cement Industry as Raw Material for Clinker Production and as Pozzolanic Additional Constituent of Portland-Composite Cement

Setting Control of Completely Recyclable Concrete with Slag and Aluminate Cements

Management and valorisation of wastes through use in producing alkali‐activated cement materials

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