In:
IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 455, No. 1 ( 2020-02-01), p. 012092-
Abstract:
A novel vacuum compaction method, aiming to improve mechanical properties of asphalt pavement, was developed and compared to common compaction method. A compaction cylinder with a hole of adjusting air pressure was designed and fabricated and was utilized for finishing vacuum compaction and common compaction. Compared common compaction, at vacuum degree of-0.04 MPa air void of the sample after compaction decreases by 6.25% and at vacuum degree of-0.08 MPa it decreases by 10.9%, which indicated that vacuum compaction is more efficient than common compaction. Similarly, the changing of voids in mineral aggregate also exhibited the same trend, which indicated that vacuum degree at -0.08 MPa is the most efficient value. Through splitting test, splitting strength under vacuum compaction was higher than that under common compaction, by 10.2%. Furthermore, the ability of strain-stress increased by 11.55% by applying vacuum compaction. These results prove that the mechanical properties of asphalt pavement were optimized by the use of vacuum compaction instead of common compaction.
Type of Medium:
Online Resource
ISSN:
1755-1307
,
1755-1315
DOI:
10.1088/1755-1315/455/1/012092
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2020
detail.hit.zdb_id:
2434538-6
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