Buscar
Mostrando ítems 171-180 de 200
Calcium aluminate based cement for concrete to be used as thermal energy storage in solar thermal electricity plants
(Elsevier, 2016)
A concept for thermal energy storage (TES) in concrete as solid media for sensible heat storage is proposed to improve the cost and efficiency of solar thermal electricity (STE) plants. Mortar and concrete mixes were ...
Preliminary attempt of hardened mortar sealing by colloidal nanosilica migration
(Elsevier, 2014)
An innovative electrochemical treatment for the sealing of hardened mortar by nanosilica migration is proposed. The composition of the colloidal suspension and the electric field power were assessed as significant parameters ...
Ternary mixes with high mineral additions contents and corrosion related properties
(Wiley, 2013)
The choice of blended cements and materials with cementitious properties inconcrete is currently seen as a choice that increases the environmentalsustainability of the construction industry. The developments with non-traditional ...
Production of lignocellulose nanofibers from wheat straw by different fibrillation methods. Comparison of its viability in cardboard recycling process
(Elsevier, 2019)
The primary aim of this work was to evaluate various methods of nanocellulose production from wheat straw soda pulp. Wheat straw was cooked in 7% NaOH (over dried material.) at a liquid/solid ratio of 10/1 at 100 °C for ...
The role of pH on leaching of heavy metals and chlorides from electric arc furnace dust in cement-based mortars
(Elsevier, 2018)
Electric arc furnace dust (EAFD) presents a pollution hazard due to its heavy metal leachability. Its characterization is essential for recovery or disposal in hazardous waste landfills. The present work discusses the ...
Mechanical behaviour of self-compacting concrete made with non-conforming fly ash from coal-fired power plants
(Elsevier, 2018)
Currently, global sustainability depends on achieving integrated productivity in all economic sectors, making it possible to respond to the environmental challenges facing humanity at present. With the dual objective of ...
The steel concrete interface
(2017)
Although the steel–concrete interface
(SCI) is widely recognized to influence the durability
of reinforced concrete, a systematic overview and
detailed documentation of the various aspects of the
SCI are lacking. In ...
Preparation of a pure inoculum of acetic acid bacteria for the selective conversion of glucose in strawberry purée into gluconic acid
(Elsevier, 2015)
Strawberry surpluses, which may account for about 20% of the whole production, could bean example of what is happening with other fruits. This surplus is largely transformed intostrawberry purée which, although is especially ...
Influence of the final ethanol concentration on the acetification and production rate in the wine vinegar process
(Wiley, 2010)
BACKGROUND: The acetification process needs an overall study of the variables influencing it in order to establish their optimum values. Based on industrial experience and available literature, including a recently proposed ...
Gluconic acid: Properties, production methods and applications—An excellent opportunity for agro-industrial by-products and waste bio-valorization
(Elsevier, 2016)
Agro-industrial by-products and wastes pose serious, widespread problems with considerable economic and environmental consequences in developed countries. However, many of the by-products contain large amounts of sugars ...