DOI: 10.5176/2301-394X_ACE13.107
Authors: Rajiv Kumar, Dr. Teiborlang Lyngdoh Ryntathiang
Abstract:
Microsurfacing was introduced in Germany, Spain, and France since 1976 and in the United States in 1980[1]. In India, it was introduced only in 1999-2000[2] under the brand name, Macroseal by Yala construction and Elsamex SA, Spain. In 2011-2012, the department of transportation, IITG successfully used microsurfacing at the test section on a deteriorated pavement, Plastic Cell Filled Concrete Block Pavement (PCCBP) that was constructed in December 2009 and after 18 months of opening to traffic that mostly of composed of heavy vehicles, the pavement deteriorated. To keep the pavement in serviceable condition, microsurfacing was selected to be laid on the deteriorated test section and laying on the section includes a double layer of microsurfacing of type II gradation. Visual evaluations as well as field measurements were carried out after the overlay of microsurfacing at 0 (zero), 34,645 and 60,882 passes of ESAL. The pavement condition index (PCI) and structural strength were measured and compared before applying microsurfacing and after applying it. Microsurfacing improved PCI and preserved the structural strength of the pavement to some extent.
Keywords: microsurfacing, pavement condition index, equivalent standard axle load.
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