POLYACIDS AND LIGNIN USED WITH LARGE ORGANIC CATIONS FOR SOIL STABILIZATION

Abstract

THE IMMERSED STRENGTH AND AIR-DRY STRENGTH OF AN IOWA SILTY LOAM TREATED WITH LARGE ORGANIC CATIONIC MATERIALS CAN BE INCREASED BY THE ADDITION OF VARIOUS POLYACIDS. THIS INCREASE IS APPARENTLY DUE PRIMARILY TO AN IONIC ABSORPTION COMPLEX IN WHICH THE POLYACIDS BOND BETWEEN LARGE ORGANIC CATIONS COATING THE MINERAL SURFACES. THE STRENGTH OF THE TREATED SOIL CAN BE FURTHER INCREASED BY THE ADDITION OF SMALL AMOUNTS OF FERROUS CARBONATE. ALSO INVESTIGATED WAS THE USE OF SPENT SULFITE LIQUOR WITH LARGE ORGANIC CATIONS WHICH APPEARS MOST PROMISING ON AN ECONOMIC BASIS. /AUTHOR/