Results 131 to 140 of about 534 (177)

Suitability of Chitosan as an emulsifier for cationic bitumen emulsions and its behaviour as an additive to bitumen emulsion

Construction and Building Materials, 2016
Abstract Chitosan contains amine and amino groups which have the ability to generate cationic type surfactants when combined with H + ions. It has a high potential for use as a cationic emulsifier for negatively charged siliceous aggregates for paving of roads in Sri Lanka.
D.R. Mallawarachchi   +2 more
exaly   +2 more sources

Effect of Cement and Bitumen Emulsion on the Drying and Film Formation of Bitumen Emulsion Paste

Journal of Materials in Civil Engineering, 2023
Cao Peng, Jian Ouyang, Ouyang Jian
exaly   +2 more sources

Effect of process parameters on bitumen emulsions

Chemical Engineering and Processing: Process Intensification, 2005
Abstract Bitumen emulsification experiments have been carried out in a continuous pilot scale rotor-stator facility. The effects of the following process parameters, namely the temperature of the aqueous phase and bitumen, the rotor speed, the dispersed phase content, the bitumen grade and the emulsion flow rate were investigated.
Jean-Philippe Gingras   +3 more
openaire   +1 more source

Electrical properties of bitumen emulsions

Fuel, 1995
The complex dielectric constant (permittivity) of water-in-bitumen emulsion was measured for emulsions with water volume fractions ranging from 0 to 0.5, in steps of 0.1. Significant departure from theoretical calculation was observed, and was attributed to the presence of polar components in the bitumen.
Sowa, J.M.   +5 more
openaire   +2 more sources

Waterproofing latex-bitumen emulsions

Polymer Science. Series D, 2008
Bitumen emulsions are developed based on new anionic emulsifiers, which are wastes of chemical industry. Optimal concentrations of emulsifiers in bitumen emulsions are established. The developed bitumen emulsions are not inferior in their process and service parameters to known domestic and foreign analogs.
M. A. Nuriev   +3 more
openaire   +1 more source

The combustion of bitumen-in-water emulsions

Fuel, 1991
Abstract The combustion behaviour of bitumen-in-water emulsions has been investigated using suspended and falling droplet techniques together with some experiments of spray combustion using an air blast atomizer. Single droplet measurements have been made using a commercial soft bitumen-in-water emulsion (Orimulsion) and similar mixtures with varied ...
N. Marcano   +2 more
openaire   +1 more source

Roles of Various Bitumen Components in the Stability of Water-in-Diluted-Bitumen Emulsions

Journal of Colloid and Interface Science, 1999
An experimental study was conducted to evaluate the effectiveness of the various components of Athabasca bitumen in stabilizing water-in-diluted-bitumen emulsions. The solvent used to dilute the very viscous bitumen was a mixture of 50:50 by volume of hexane and toluene.
, Yan, , Elliott, , Masliyah
openaire   +2 more sources

ATOMIZATION CHARACTERISTICS OF BITUMEN CRUDE-WATER EMULSION

Atomization and Sprays, 1998
Measurements of the angular patterns of scattered light were carried out on sprays of an emulsion of bitumen crude (70% by weight) in water produced by a home-built air-assisted atomizer at different air flow rates. The size distribution of the bitumen droplets was previously measured by optical microscopy.
M Romano   +3 more
openaire   +3 more sources

[On bitumen emulsions in water].

Acta cientifica venezolana, 2005
The most important factors, controlling the process of emulsification of highly viscous hydrocarbons in water, which are responsible for keeping the stability and other properties of these systems, are discused in this article. The effect of non-ionic surfactants, such as nonil phenol ethoxilated compounds on the interfacial behavior of bitumen/water ...
Hercilio, Rivas   +3 more
openaire   +1 more source

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