Effect of new soil stabilizers on the compressive strength of dune sand

摘要

A new composition comprising a polyanionic component, an aggregating agent and a bridging agent were successfully used to improve quite significantly the compressive strength of dune sands even at low dosages. A dose of 2 /100 of a mixture of sulfonated urea-melamine formaldehyde and urea-formaldehyde with 0.25 /100 sodium chloride gave a compressive strength of treated dune sand of 2.4 N/mm~2. The design parameter for constructing road bases requires a compressive strength of 1.75 N/mm~2.