Wet track abrasion test

The mix design procedure for slurry seal according to ASTM D 3910 (2011) requires the execution of the following tests (a) consistency test, (b) set time test, (c) cure test and (d) wet track abrasion test, all described in ASTM D 3910 (2011). 

The wet track abrasion test covers measurement of the wearing qualities of slurry seal under wet abrasion conditions. 

The wet track abrasion test is also included in the mix design method proposed by ISSA A105 (2010) and is carried out using a similar procedure described in ISSA TB-100 (1990). 

The wet track abrasion test is used to determine the minimum bitumen content and the mixture s resistance to stripping. The test is the same as the one used in mix design for slurry seals, briefly described in the above paragraph. 

Fig. 12-18 The wet track abrasion test and loaded wheel test of cured microsurfacing specimen prepared with five different polymers reported by Jones [23, 24].

The determination of wearing is carried out according to CEN EN 12274-5 (2003). The test method determines the minimum binder content of the mix under wet track abrasion conditions. It also covers the compatibility between aggregate fillers and cationic bitumen emulsion. The test is similar to wet track abrasion loss described in ASTM D 3910 (2011), a brief description of which is given in Section 6.8.3.1. 

---