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Study on the Concentration of a Silicon Oxide Micro-sphere on Modified Asphalt with SBS Copolymer.

Published online by Cambridge University Press:  30 March 2015

Eliot U. Olivos Peralta
Affiliation:
Facultad de Química, Departamento de Ingeniería Química, Universidad Nacional Autónoma de México (UNAM), Cd. Universitaria, Coyoacán, México D.F. (04510) México.
Esteban A. González García
Affiliation:
Facultad de Química, Departamento de Ingeniería Química, Universidad Nacional Autónoma de México (UNAM), Cd. Universitaria, Coyoacán, México D.F. (04510) México.
Rafael Herrera Nájera
Affiliation:
Facultad de Química, Departamento de Ingeniería Química, Universidad Nacional Autónoma de México (UNAM), Cd. Universitaria, Coyoacán, México D.F. (04510) México.
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Abstract

This work deals with the effect of the concentration of microsphere of silicon oxide (MS) in SBS-modified asphalt.

A series of blends having 2, 4, 6, 8 and 10 % w/w of MS were prepared from a SBS-modified asphalt having 3 % weight/weight of SBS and known amount of MS. Samples were characterized by fluorescence microscopy, to get an idea of the polymer distribution in the blend; and by conventional tests such as penetration, soft point, density and viscosity, to investigate on the thermo-mechanical resistance of such a blends. It was observed that an increase in the MS resulted in a decreased of the soft point and density, an increased the viscosity, and did no affect the penetration of the sample. Therefore, it was concluded that SBS-MS-modified asphalt is an interesting material for producing polymer-modified asphalt layers.

Type
Articles
Copyright
Copyright © Materials Research Society 2015 

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References

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