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Comparative assessment of corrosion of concrete reinforced with unprotected steel and hot-dip galvanized steel
(Revista de la Construccion, 2017)
Increasing the lifespan of structures is of great importance for civil construction, either because of economic aspects or security to the users. Corrosion of reinforcement is one of the most recurring problems, especially ...
Pollution from uncontrolled coal fires: Continuous gaseous emissions and nanoparticles from coal mines
(Journal of Cleaner Production, 2019-01-14)
In this investigation, the coal fires in different Colombian coal mines were studied using advanced
electron beam and X-ray diffraction techniques. The results were compared with information from highresolution transmission ...
River dynamics and nanopaticles formation: A comprehensive study on the nanoparticle geochemistry of suspended sediments in the Magdalena River, Caribbean Industrial Area
(Journal of Cleaner Production, 2019-12-21)
The coastal zones on continental shelves are the main channels for the distribution of fluvial-sourced
suspended sediments (SSs). In the current research, the monthly average amount of SS draining into
the Caribbean Sea ...
Experimental method for investigation of impact of the addition of polymer fibers on drying shrinkage and cracking for concretes
(Structural Concrete, 2019-12-08)
This study presents an investigation of a fiber-reinforced concrete (FRC) with use
of fibers of polypropylene, polyvinyl alcohol, and recycled polyester in the amount
of 0.50%, seeking to analyze the impact of the fiber ...
Chemical and nano-mineralogical study for determining potential uses of legal Colombian gold mine sludge: Experimental evidence
(Chemosphere, 2018-01)
The present study is focused on the chemical and nano-mineralogical characterization of sludge from gold mine activities, in order to put forward diverse solution alternatives, where lack of knowledge has been found. The ...
Fire resistance performance of concrete-PVC panels with polyvinyl chloride (PVC) stay in place (SIP) formwork
(Universidad de la Costa, 2019-07-26)
Stay-in-place (SIP) formwork is a more-practical alternative to traditional steel or wood formworks due to its improved constructability and durability. The aim of this paper was to study the fire resistance performances ...
Coal emissions adverse human health effects associated with ultrafine/nano-particles role and resultant engineering controls
(Environmental Research, 2017)
There are multiple elements which enable coal geochemistry: (1) boiler and pollution control system design parameters, (2) temperature of flue gas at collection point, (3) feed coal and also other fuels like petroleum coke, ...
Historic building materials from Alhambra: Nanoparticles and global climate change effects
(Universidad de la Costa, 2019-09-20)
Advanced microscopy analyses are capable of revealing particles that are existent in the Alhambra, Spain, a UNESCO World Heritage Site, at minimal levels owing to the detailed directing on ultra-fine (UFPs) and nano-particles ...