Accession Number:

AD0266509

Title:

SOIL STABILIZATION. INVESTIGATIONS OF PHOSPHORUS PENTOXIDE AS A SOIL-STABILIZING MATERIAL

Descriptive Note:

Technical rept.

Corporate Author:

ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s):

Report Date:

1960-11-01

Pagination or Media Count:

36.0

Abstract:

Laboratory and field tests were made of a phosphoric acid anhydride P2O5 that would utilize available water in the soil, convert to the acid, and proceed with a stabilizing reaction. Initial laboratory tests revealed that 5 P2O5 plus 0.5 sodium fluosilicate was capable of increasing the compressive strength of a lean clay soil soil A from 24 to 165 psi after 24-hr curing and to nearly 400 psi after 3-day curing. Laboratory tests conducted on a similar soil soil B concurrently being used to construct the field test section showed the same stabilizer system used in the initial laboratory tests to be relatively ineffective for soil B. Analysis of soil B revealed the presence of concretions of calcium carbonate, which were not present in soil A. Traffic tests showed that the stabilized soil B surface was unable to withstand the intended traffic without failure as defined by specific criteria established for stabilized-soil surfaces. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE