Short Term and Long Term Aging Effects of Asphalt Binder Modified with Montmorillonite

Abstract

Abstract. Nowadays, most of asphalt used in pavement construction is produced from petrochemicals through refining process of crude oil. When evolves with time, asphalt become stiffer and brittle due aging process. In this paper, the rheological effect of short-term and long-term oxidative ageing of asphalt binder modified with montmorillonite (MMT) was studied using Superpave™ rotational viscometer (RV), dynamic shear rheometer (DSR) and Fourier transform infrared (FTIR) instruments. The results indicate the addition of MMT increased the viscosity. Based on dynamic mechanical analysis with DSR, MMT modified binder has a potential to increase rutting and fatigue resistance. In terms of FTIR test, it appears that the chemical bonding had changed in the asphalt binder before and after RTFO and PAV aging which suggest that the additional of MMT could delay the aging process.

Effect of Nanoadditives on Bitumen Aging Resistance: A Critical Review

“…Since oxidation alters the bitumen composition, aging evaluation may be approached starting from the wellknown fractionation proposed by Corbett [9] in saturates, naphthene aromatics, polar aromatics, and asphaltenes, in the order of their increasing molecular polarity. The changes in bitumen chemical composition can be monitored through elemental and fractional analyses, or analytical techniques, such as infrared spectroscopy ( [1,10] and references therein, [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]). As an example of aging index from FTIR, Cong et al [26] and Zhao et al [20] define a carbonyl index as…”

Cup lump modified asphalt mixture along jalan Kuala Lumpur-Kuantan, daerah Temerloh, Pahang

“…Hot Mix Asphalt (HMA) is a conventional mixture in road construction that are highly viscous, black, sticky, soluble in carbon disulphide and composed primarily of highly condensed polycyclic aromatic hydrocarbons which provide better in flexibility [1]. Materials for asphalt paving and standard structures must be complied with the requirements of standard specified by Highway Department in order to be sure that it's suitable to utilize and last long whilst highly safe for the users.…”

“…Materials for asphalt paving and standard structures must be complied with the requirements of standard specified by Highway Department in order to be sure that it's suitable to utilize and last long whilst highly safe for the users. However, HMA shows limitation on temperature, soften when the temperature is high and cracked when the temperature is low causing oxidation of asphalt because of aging process [1][2][3]. In addition, heavy traffic,high loading weight and wet tropical climatic conditions will damage the roads although these pavements are still in service cause large expenses for maintenance due to pavement distress [4].…”

“…The Polymer Modified Asphalt or PMA is one of such improvement by mixing polymers in asphalt [1]. Natural rubber is an interested polymer that can be efficiently used and could improve stability, elasticity, and fatigue resistance [5][6].…”

Effect of Waste Plastic as Bitumen Modified in Asphalt Mixture

“…Modification of asphalt with polymers is one of the best options to improve asphalt properties [6]. The added polymer can strongly improve the binder properties, provide safer road, and reduce the maintenance cost by increasing the stiffness of the bitumen and by improving its temperature susceptibility [7]. Modarres and Hamedi [8] reported that the use of recycled waste plastic in pavement asphalt represents a valuable outlet for such materials.…”