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Investigation on maximum packing fraction of bitumen particles during emulsion drying
https://orcid.org/http://orcid.org/0000-0003-4673-6171
A good quality bitumen emulsion is a key prerequisite for a bitumen emulsion material with good performance. However, current evaluation methods of bitumen emulsion cannot distinguish the quality of bitumen emulsions with the similar grade of chemical stability but different bitumen particles size distribution. The maximum packing fraction of bitumen particles (ϕm) formed during drying, which affects the chemical stability, drying process and film properties of emulsion, is firstly proposed to evaluate the quality of different bitumen emulsions. Then, the mechanism influencing the ϕm of bitumen emulsions is discussed. Results indicate that although the same emulsifier type and dosage are used to produce bitumen emulsions, the ϕm of different bitumen emulsions can still differ greatly if their particle size distributions are different. The ϕm of bitumen emulsion is related to the motion ability of bitumen particles in emulsion due to particle Brownian motion, which is mainly dominated by the bitumen particle size and emulsion viscosity. The smaller bitumen particle size and emulsion viscosity can lead to a higher ϕm. Based on the ϕm results of bitumen emulsions, an empirical prediction model relating ϕm to the essential properties of bitumen emulsion (bitumen particle size and emulsion viscosity) is established. The empirical model can give a good quantitative relation of ϕm with the two essential properties of bitumen emulsion. It can be used to rapidly judge the quality of bitumen emulsion and help to quantitatively understand the effect of bitumen particle size and emulsion viscosity on the quality of bitumen emulsion.
Investigation on maximum packing fraction of bitumen particles during emulsion drying
https://orcid.org/http://orcid.org/0000-0003-4673-6171
A good quality bitumen emulsion is a key prerequisite for a bitumen emulsion material with good performance. However, current evaluation methods of bitumen emulsion cannot distinguish the quality of bitumen emulsions with the similar grade of chemical stability but different bitumen particles size distribution. The maximum packing fraction of bitumen particles (ϕm) formed during drying, which affects the chemical stability, drying process and film properties of emulsion, is firstly proposed to evaluate the quality of different bitumen emulsions. Then, the mechanism influencing the ϕm of bitumen emulsions is discussed. Results indicate that although the same emulsifier type and dosage are used to produce bitumen emulsions, the ϕm of different bitumen emulsions can still differ greatly if their particle size distributions are different. The ϕm of bitumen emulsion is related to the motion ability of bitumen particles in emulsion due to particle Brownian motion, which is mainly dominated by the bitumen particle size and emulsion viscosity. The smaller bitumen particle size and emulsion viscosity can lead to a higher ϕm. Based on the ϕm results of bitumen emulsions, an empirical prediction model relating ϕm to the essential properties of bitumen emulsion (bitumen particle size and emulsion viscosity) is established. The empirical model can give a good quantitative relation of ϕm with the two essential properties of bitumen emulsion. It can be used to rapidly judge the quality of bitumen emulsion and help to quantitatively understand the effect of bitumen particle size and emulsion viscosity on the quality of bitumen emulsion.
Investigation on maximum packing fraction of bitumen particles during emulsion drying
https://orcid.org/http://orcid.org/0000-0003-4673-6171
A good quality bitumen emulsion is a key prerequisite for a bitumen emulsion material with good performance. However, current evaluation methods of bitumen emulsion cannot distinguish the quality of bitumen emulsions with the similar grade of chemical stability but different bitumen particles size distribution. The maximum packing fraction of bitumen particles (ϕm) formed during drying, which affects the chemical stability, drying process and film properties of emulsion, is firstly proposed to evaluate the quality of different bitumen emulsions. Then, the mechanism influencing the ϕm of bitumen emulsions is discussed. Results indicate that although the same emulsifier type and dosage are used to produce bitumen emulsions, the ϕm of different bitumen emulsions can still differ greatly if their particle size distributions are different. The ϕm of bitumen emulsion is related to the motion ability of bitumen particles in emulsion due to particle Brownian motion, which is mainly dominated by the bitumen particle size and emulsion viscosity. The smaller bitumen particle size and emulsion viscosity can lead to a higher ϕm. Based on the ϕm results of bitumen emulsions, an empirical prediction model relating ϕm to the essential properties of bitumen emulsion (bitumen particle size and emulsion viscosity) is established. The empirical model can give a good quantitative relation of ϕm with the two essential properties of bitumen emulsion. It can be used to rapidly judge the quality of bitumen emulsion and help to quantitatively understand the effect of bitumen particle size and emulsion viscosity on the quality of bitumen emulsion.
Investigation on maximum packing fraction of bitumen particles during emulsion drying
Mater Struct
Ouyang, Jian (author) / Cao, Peng (author) / Tang, Taixiong (author) / Meng, Yan (author)
2021-10-01
Article (Journal)
Electronic Resource
English
Bitumen emulsion , Prediction model of maximum particle packing fraction , Drying , Bitumen particle size , Emulsion viscosity Engineering , Solid Mechanics , Materials Science, general , Theoretical and Applied Mechanics , Manufacturing, Machines, Tools, Processes , Civil Engineering , Building Materials
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