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Recycling concrete: An undiscovered source of ultrafine ...
Recycling concrete: An undiscovered source of ultrafine ...
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Estimation and forecasting of concrete debris amount in China
We measured size-resolved particles in the 5-560 nm range at five distances between 0.15 and 15.15 m that were generated by an experimentally simulated concrete recycling source and found that: (i ...
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Utilization of fine powder in demolition concrete as ...
Kumar P, Morawska L (2014) Recycling concrete: an undiscovered source of ultrafine particles. Atmosph Environ 90:51–58. Article Google Scholar Kumar P, Prasad B, Mishra IM, Chand S (2008) Treatment of composite wastewater of a cotton textile mill by thermolysis and coagulation. J Hazard Mater 151:770–779
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Microstructure of Concrete with Aggregates from ...
Medina et al. (Reference Medina, Frías and Sánchez de Rojas 2012) observed the microstructure of concrete mixes with ceramic aggregates (sanitary ware).They analyzed mixes with 15, 20, and 25% RA using mercury intrusion porosimetry and SEM. From the first method the authors concluded that RA incorporation increased concrete's porosity, due to an increase of the (small size) …
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Recycling concrete: An undiscovered source of ultrafine ...
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Physicochemical characteristics and occupational exposure ...
Kumar P, Morawska L (2014) Recycling concrete: an undiscovered source of ultrafine particles. Atmos Environ 90:51–58. Article Google Scholar Kumar P, Fennell P, Britter R (2008) Effect of wind direction and speed on the dispersion of nucleation and accumulation mode particles in an urban street canyon.
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ACP - Vertical and horizontal distribution of regional new ...
Abstract. The vertical profile of new particle formation (NPF) events was studied by comparing the aerosol size number distributions measured aloft and at surface level in a suburban environment in Madrid, Spain, using airborne instruments. The horizontal distribution and regional impact of the NPF events was investigated with data from three urban, urban background, and suburban …
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Prof Prashant Kumar | University of Surrey
Recycling concrete: An undiscovered source of ultrafine particles. ... Building and construction activities – a source of ultrafine particles. Urban Air Quality Conference. Air Quality: 9th International Conference on Air Quality - Science and Application, Garmisch-Partenkirchen, Germany. March 2014.
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Minerals | Free Full-Text | Jigging: A Review of ...
Although tailored to the recycling context, undiscovered benefits could result from the adaptation of some concepts involved in the design and operation of such jigs to the framework of mineral processing (e.g., the use of under-screen aeration to change the apparent density of particles, as in the hybrid jig).
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Virtual Conference Sources Release of Nanoparticles During ...
demolishing, excavation, recycling of construction debris, assembling/removal of formwork, concreting and architectural works such as painting, partition works and tiling works. When bulk materials are broken down, nano-sized particles can be emitted and released into the air from any of these activities into the environment unintentionally.
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Recycling concrete: An undiscovered source of ultrafine ...
Recycling concrete: An undiscovered source of ultrafine particles Kumar, Prashant & Morawska, Lidia (2014) Recycling concrete: An undiscovered source of ultrafine particles. Atmospheric Environment, 90, pp. 51-58.
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Recycling concrete: An undiscovered source of ultrafine ...
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Engineered nanomaterials: knowledge gaps in fate, exposure ...
There are two main sources of nanomaterials in the environment: natural and anthropogenic. ... "Recycling concrete: an undiscovered source of ultrafine particles," Atmospheric Environment, vol. 90, pp. 51-58, 2014. ... N. Kapp et al., "Ultrafine particles cross cellular membranes by nonphagocytic mechanisms in lungs and in cultured cells ...
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Release of ultrafine particles from three simulated ...
Particles in the 100–300 contributed about 26 and 9% during 'dry' and 'wet' recycling, respectively, with only a modest (~1%) contribution by the 300–560 nm size range in both cases. The ratio of new PNCs release in the ultrafine size range (5–100 nm) to the remaining size range (100–560 nm) changed from ~2.7 during 'dry ...
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EMISSION OF NANOMETER SIZE PARTICLES DURING SELECTED ...
Changes in ultrafine particles number concentration during the: a) nanomortar, b) nanoconcrete pouring Rycina 6. Zmiany stezenia liczbowego czastek ultradrobnych emitowanych podczas przesypywania: a) nanozaprawy, b) nanobetonu Caption: Figure 7. Changes in particles mean diameter value during the: a) nanomortar, b) nanoconcrete pouring
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Browse By Publication: Atmospheric Environment | QUT ePrints
Kumar, Prashant & Morawska, Lidia (2014) Recycling concrete: An undiscovered source of ultrafine particles. Atmospheric Environment, 90, pp. 51-58. 34
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Atmospheric Environment | Vol 90, Pages 1-150 (June 2014 ...
select article Recycling concrete: An undiscovered source of ultrafine particles. ... Research article Full text access Recycling concrete: An undiscovered source of ultrafine particles. Prashant Kumar, Lidia Morawska. Pages 51-58 Download PDF. Article preview.
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Release of ultrafine particles from three simulated ...
Building activities are recognised to produce coarse particulate matter but less is known about the release of airborne ultrafine particles (UFPs; those below 100 nm in diameter). For the first time, this study has investigated the release of particles in the 5-560 nm range from three simulated building activities: the crushing of concrete cubes, the demolition of old concrete slabs, and the ...
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Recycling concrete: An undiscovered source of ultrafine ...
Recycling concrete: An undiscovered source of ultrafine particles. Author links open overlay panel Prashant Kumar a b Lidia Morawska c. Show more
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Recycling concrete: An undiscovered source of ultrafine ...
Highlights. Ultrafine particle (UFP) emission from simulated concrete recycling process assessed. UFP decay profiles around source and associated exposure determined. Effectiveness of commonly deployed masks at construction sites analysed. Over 90% of particle number concentrations were found in UFP size range.
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concrete aggregate crushing process
mumbai concrete aggregate crushing process. mumbai concrete aggregate crushing process 150-200TPH Cobble Crushing Plant Vietnam is an important mining export country in Asia, especially the exportation of Limestone, iron ore, coal, granite and bluestone products.
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A mechanism for the production of ultrafine particles from ...
Recycling concrete: an undiscovered source of ultrafine particles Atmos. Environ., 90 ( 2014 ), pp. 51 - 58 Article Download PDF View Record in Scopus Google Scholar
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(PDF) Release of ultrafine particles from three simulated ...
For the first time, this study has investigated the release of particles 14 in the 5–560 nm range from three simulated building activities: the crushing of 15 concrete cubes, the demolition of old concrete slabs, and the recycling of concrete 16 debris.
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Notice Changes introduced as a result of publishing ...
1 Recycling Concrete: An Undiscovered Source of Ultrafine Particles Prashant Kumara, b, *, Lidia Morawskac aDepartment of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences (FEPS), University of Surrey, Guildford GU2 7XH, United
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Journal: Atmospheric environment / Publication year rev ...
You searched for: Journal Atmospheric environment Remove constraint Journal: Atmospheric environment Publication year rev 7986-2014 Remove constraint Publication year rev: 7986-2014 Source 2014 v.90 Remove constraint Source: 2014 v.90
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Recycling Concrete: An Undiscovered Source of …
Recycling Concrete: An Undiscovered Source of Ultrafine Particles Prashant Kumar a, b, *, ... 15.15 m that were generated by an experimentally simulated concrete recycling source and found that: (i) the size distributions were multimodal, with up to ~93% of total PNC in …
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Prashant Kumar – The Conversation
Recycling concrete: An undiscovered source of ultrafine particles, Atmospheric Environment 2014 Water-energy-pollution nexus for growing megacities, Urban Climate
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Enlightening and Noxious Shades of Nanotechnology ...
Recycling concrete: An undiscovered source of ultrafine particles. Article. Mar 2014; ... Exposure to concrete recycling particles poses risk to the workers at the recycling sites, as well as the ...
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Engineered nanomaterials: knowledge gaps in fate, exposure ...
The aim of this study is to identify current knowledge gaps in fate, exposure, and toxicity of engineered nanomaterials (ENMs), highlight research gaps, and suggest future research directions. Huma...
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