sentences:  This procedure underwent a series of tests examining whether an increase of the subgrade tensile strength occurred.This experiment was undertaken south of Saskatoon for three test sections of provincial Highway 19 near Strongfield since 1999 Saskatchewan Highway 19 has a thin membrane surface (TMS) which has been subject to test studies of various cost-effective methods of road strengthening.Systems include granular soil strengthening and applications of different cement products, lime, various grades of fly ash, geotextiles, geogrids, natural and manufactured fibers, emulsified bitumen, tall oil, lignin, foamed bitumen, and synthetic ionic and cationic chemicals.