Use of engineered nanomaterials in the construction industry with specific emphasis on paints and their flows in construction and demolition waste in Switzerland

Hincapié, Ingrid; Caballero-Guzman, Alejandro; Hiltbrunner, David; Nowack, Bernd

doi:10.1016/j.wasman.2015.07.004

Cited by 47 publications

(25 citation statements)

References 23 publications

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“…Coatings are the dominant and most numerous nano-enabled products (Lippy and West, 2015;van Broekhuizen et al, 2011;West et al, 2016), accounting for over half the current and predicted spending on construction nanomaterials (Freedonia, 2007). However, actual use relative to non-nano products remains low, with estimates suggesting they account for no more than 1% of the coatings market in Europe (Hincapié et al, 2015). The nanomaterials commonly used in coatings include silica, titanium dioxide, silver and carbon.…”

Section: Coatingsmentioning

confidence: 99%

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Nanomaterials in construction – what is being used, and where?

Jones

Gibb

Goodier

et al. 2019

Proceedings of the Institution of Civil Engineers - Constructio

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Identifying where nanomaterials are present in construction materials is challenging. Academic literature reports what nanotechnology can offer construction, but this can differ from the reality of what is currently in use.Furthermore, it is difficult to source accurate information regarding nano-enabled products on the market; under current legislation, the declaration of nano content is voluntary and there is no requirement to provide details within safety data sheets. Although publically available information remains opaque and incomplete, several studies and reports have attempted to clarify this situation. This research builds on this information, presenting an overview of the nano-enabled products currently available for use in construction. This is based on the literature, manufacturers' published information and on discussions with suppliers and end users. Concrete, glass and coatings are the most widely available nano-enabled products, together with insulation and special steels. The precise nanomaterial used in each case however, and the form and quantity involved can be difficult to identify. This makes assessing the risks difficult, which is problematic, as some nanomaterials are considered to be hazardous. More detailed information regarding commercially available products will be important if risks are to be managed, enabling the industry to take full advantage of the benefits of nanotechnology.

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Section: Coatingsmentioning

confidence: 99%

“…It is the nanomaterial most often listed as the active constituent in commercial products (PEN, 2014) as well as being the nanomaterial most commonly reported or recognised by those working in construction (Arora et al, 2014;Hincapié et al, 2015).…”

mentioning

confidence: 99%

Nanomaterials in construction – what is being used, and where?

Jones

Gibb

Goodier

et al. 2019

Proceedings of the Institution of Civil Engineers - Constructio

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“…For example, a nano-modified concrete was made as a wall that can be potentially be used as a thermal insulator or conductor of temperature to reduce the energy load required for building interior conditioning [3]. Hincapié et al (2015) [5] conducted a study to understand the flow of engineered nano-materials (ENMs) in the construction and demolition waste (C&DW) streams. The study aimed to gather adequate knowledge about current nano-material applications and assumptions about their market penetration in the Swiss construction sector.…”

Section: Nano-technology and Sustainable Constructionmentioning

confidence: 99%

“…During the renovation or demolition of buildings, engineered nano-materials (ENMs) contained in former construction materials are recycled or become construction waste. Currently, information about disposal of ENM waste into the environment and its negative impact is unknown [5].…”

Section: Introductionmentioning

confidence: 99%

The Role of Nano-Technology in Sustainable Construction: A Case Study of Using Nano Granite Waste Particles in Cement Mortar

Bakhoum¹,

Garas²,

Allam³

et al. 2017

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Abstract. Better understanding of the properties of cement-based materials, one of the most widely used building materials, at the nano-scale is crucial to improve its functionality in the built environment. This paper presents areas of using nano-materials in improving the characteristics of cement-based materials as well as introducing a new role of nanotechnology together with waste management in enhancing the concept of sustainable construction.A case study on the use of nano-granite waste particles as a replacement of cement and fine aggregate in mortar production is presented.The research concluded that replacing 5% cement and 10% sand with nano-granite waste in the mortar mix increased the compressive strength of the green mortar by 41% compared to that of the control mix (CM). SEM images reinforced this result as the green mortar mix showed maximum density and minimum micro cracks and number of pores.A comparative study between the green mortar and traditional mortar was carried out using sustainability indicators to examine the environmental, social and economic implications. The environmental and social attributes showed a saving of 10% in the field of resource consumption, whereas savings in energy consumption and CO2 emissions reached 5%. The economic field showed saving of 6.5% indicating promising results in enhancing the sustainable construction industry.

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“…For example a 1% penetration of the coatings market is used as a basis for calculations in one study (Hincapié et al, 2015) although it is not entirely clear how this figure is calculated. Another study, which assesses nanomaterial production for the purposes of calculating likely environmental exposures, estimates that up to 3000 tonnes per year of nanotitanium might be added to paints in Europe, and rather smaller quantities of other materials.…”

Section: What Is Known About the Potential For Exposure To Nanomaterimentioning

confidence: 99%

Managing the unknown – Addressing the potential health risks of nanomaterials in the built environment

Jones

Gibb

Goodier

et al. 2016

Construction Management and Economics

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Nanomaterials offer significant potential for high performing new products in the built environment and elsewhere. However, there are uncertainties regarding their potential adverse health effects and the extent to which they are currently used. A desk study and interviews with those working across the construction, demolition and product manufacture sectors (n=59) identified the current state of knowledge regarding nanomaterial use within the built environment. Some nanomaterials are potentially toxic, particularly those based on fibres; others are much less problematic but the evidence base is incomplete. Very little is known regarding the potential for exposure for those working with nano-enabled construction materials. Identifying which construction products contain nanomaterials, and which nanomaterials these might be, is very difficult due to inadequate labelling by product manufacturers. Consequently, those working with nanoenabled products typically have very limited knowledge or awareness of this. Further research is required regarding the toxicology of nanomaterials and the potential for exposure during construction and demolition. Better sharing of the information which is already available is also required through the construction, demolition and manufacture / supply chains. This is likely to be important for other innovative products and processes in construction, not just those which use nanomaterials.

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Use of engineered nanomaterials in the construction industry with specific emphasis on paints and their flows in construction and demolition waste in Switzerland

Cited by 47 publications

References 23 publications

Nanomaterials in construction – what is being used, and where?

Nanomaterials in construction – what is being used, and where?

The Role of Nano-Technology in Sustainable Construction: A Case Study of Using Nano Granite Waste Particles in Cement Mortar

Managing the unknown – Addressing the potential health risks of nanomaterials in the built environment

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