A comparative study of natural zeolite and synthetic zeolite as an additive in warm asphalt mixes
Zeolite can be used as an ingredient in warm bituminous mixes to reduce manufacturing temperatures. The zeolite for this purpose is usually synthetic, but natural zeolite can also be used. The research presented in this paper analyzed the use of natural zeolite from Cuba in the form of sand and...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Consejo Superior de Investigaciones Científicas
2013-06-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/1292 |
| Summary: | Zeolite can be used as an ingredient in warm bituminous
mixes to reduce manufacturing temperatures. The
zeolite for this purpose is usually synthetic, but natural
zeolite can also be used. The research presented in this
paper analyzed the use of natural zeolite from Cuba in
the form of sand and filler as an additive in warm asphalt
mixes and compared it to asphalt mixes with synthetic
zeolite. The mixes were given the Marshall tests, and
their moisture sensitivity and stiffness modulus values
were also obtained. The results showed that both types
of mix had a similar performance, which was only slightly
lower than that of the reference mix. The use of different
dosages of natural zeolite in the mixes gave the best
results when the zeolite was incorporated as filler. This
study demonstrated that the use of natural zeolite is an
effective way of reducing the temperature of bituminous
mixes. |
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| ISSN: | 0465-2746 1988-3226 |