|
|
|
Title: FROST STABILIZATION OF SEVERAL SOILS WITH SODIUMTRIPOLYPHOSPHATE AND SODIUMPYROPHOSPHATE
Accession Number: 00237511
Record Type: Component
Abstract: THE BEHAVIOR OF THREE GERMAN SOILS OF DIFFERENT ORIGIN AND COMPOSITION WITHOUT AND WITH ADDITION OF POLYPHOSPHATES WAS INVESTIGATED IN THE FREEZING CABINET. DETERMINATION WAS MADE OF THE FROST HEAVE AND WATER INTAKE DURING A FREEZING PERIOD OF 4 DAYS. TWO OF THE SOILS, CONSIDERED AS STRONGLY FROST SENSITIVE IN ACCORDANCE WITH THE CRITERION OF A. CASAGRADE, ALSO SHOWED LARGE FROST HEAVE AND WATER INTAKE IN THE FREEZING CABINET. ADDITION OF SMALL AMOUNTS OF POLYPHOSPHATES SUFFICIENTLY SURPRESSED THE FROST HEAVE AND WATER INTAKE DURING THE FREEZING PERIOD SO THAT THE WATER CONTENT AFTER THE FREEZING PERIOD DID NOT EXCEED THE OPTIMUM MOISTURE CONTENT AT THE STANDARD PROCTOR DENSITY. THE FROST STABILITY REMAINED AFTER THE POLYPHOSPHATES HAD BEEN WASHED OUT OF THE SOIL. THE DISPERSING EFFECT OF THE POLYPHOSPHATES INCREASED THE DEGREE OF SOIL DENSIFICATION ACHIEVED, THE DRY DENSITIES OBTAINED BEING A FUNCTION OF THE CONCENTRATION OF THE POLYPHOSPHATES. THE CONNECTION BETWEEN FROST STABILIZATION AND DENSIFICATION IS POINTED OUT. /AUTHOR/
Supplemental Notes: No 318, pp 83-90, 4 FIG, 2 TAB, 7 REF Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: Monograph Accession #: 01410700
Authors: Beltz, KMuller-schiedmayer, GPublication Date: 1962
Serial: Conference:
40th Annual Meeting of the Highway Research Board
Location:
Washington DC, United States TRT Terms: Old TRIS Terms: Subject Areas: Geotechnology; Highways
Files: TRIS, TRB
Created Date: Aug 12 1994 12:00AM
More Articles from this Serial Issue:
|
