Stabilization of sandy soils with modified polymer resins
| Year | Start Page | End Page |
|---|---|---|
2004 | 1 | 4 |
In the paper it is presented results of laboratory and field tests of sandy soils stabilized with polymer resins. Comparison was done of properties of nonmodified carbamide resins with properties of modified carbamide resins. Such properties of solution of resins have been investigated: density, viscosity, pH (alkalinity level), evaporation of components from solution. During the next stage of investigations properties of alluvial medium dense sand stabilized with nonmodified and modified resins have been compared. Such properties of reinforced soil have been investigated: unconfined strength, evaporation of components of resin from soil, time dependent strength of soil in air and water medium. Third stage of investigations have been done in field. During field tests two modified carbamide resins have been grouted in alluvial medium dense sand. After one week stabilized soil was excavated and investigated. Results of field tests confirmed the results of laboratory tests. Addition of active components to carbamide resins increase density and pH of solution of carbamide resin, decrease viscosity. Unconfined strength of sands stabilized with polymer resins is time dependent and increased from 2.2 MPa after 7 days to 2.9 MPa after 3 months.