| 摘要 |
<p>A method for reinforcing dirt roads, and land, and for binding of dust which uses lignosulphate solution as a binder, with a separate step addition of one or more chemicals that coagulate or precipitate the lignosulphonate, is new. Further the added chemical is particularly a poly-electrolyte, esp. a cation active poly-acrylamide, a polyethylene oxide, a poly-imine or a blend of these. Dosage is 1-60g/sq m of road surface with conc. of 0.5-50g/1. The chemicals is pref. added before the lignosulphonate has dried.</p> |
