PRELIMINARY INVESTIGATION OF SOIL BEHAVIOR ON SOME CHEMICAL SOIL STABILIZERS

BOTH SILTY SOILS AND HEAVY CLAY SOILS IN THEIR MOIST STATE ARE INHERENTLY UNSTABLE FOR HIGHWAY SUBGRADE. TO STABILIZE THESE SOILS, IT IS NECESSARY TO MODIFY OR IMPROVE THEIR PHYSICAL PROPERTIES. SUCH MODIFICATION MAY BE ACHIEVED THROUGH TREATMENT BY CHEMICAL STABILIZERS. THE FOLLOWING EXPERIMENT WAS TO INVESTIGATE HOW THESE TWO TYPES OF SOIL BEHAVE AFTER BEING TREATED WITH SUCH CHEMICALS. ROUGHLY SPEAKING, CHEMICAL SOIL STABILIZERS CAN BE CLASSIFIED INTO THREE CATEGORIES. THEY CAN ACT AS A WATER-PROOFING AGENT, AS BONDING AGENTS AND AS COMBINATION BONDING AND WATER- PROOFING. ALL THE CHEMICAL AGENTS INVESTIGATED IN THIS EXPERIMENT FALL INTO THE FIRST CATEGORY-WATER-PROOFING ONLY. SINCE THE CHEMICALS DO NOT BOND THE SOIL PARTICLES TOGETHER IN THE CASE OF THE WATER-PROOFING AGENTS, THEY WILL NOT AFFECT THE DRY STRENGTH SIGNFICANTLY, BUT THEY WILL ALLOW THE DRY STRENGTH OF THE SOIL TO BE RETAINED IN THE PRESENCE OF WATER BY REDUCING WATER ABSORPTION. SILTY SOIL IN ITS DRY STATE POSSESSES SOME LOAD-BEARING CAPACITY. TO MODIFY SOIL SO AS TO RETAIN ITS DRY STRENGTH UNDER WET CONDITIONS WAS THE OBJECT OF THIS EXPERIMENT. /CGRA/

Media Info

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    • Issue Number: 0

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Filing Info

  • Accession Number: 00230939
  • Record Type: Publication
  • Source Agency: CANADIAN GOOD ROADS ASSOCIATION
  • Files: TRIS
  • Created Date: Aug 15 2004 2:40AM