1801 RES CITY COUNCIL AT ITS REGULAR MEETING ON 14TH DAY OF MARCH 1977 APPROVED ADVERTISEMENT FOR BIDS

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SOIL STABILIZATION A. SCOPE: Furnish and install all labor, materials, and equipment necessary to complete the lime stabilization application as described herei.n. Stabilize the soil around the entire perimeter ot the main building, stabilization shall begin at the exterior foundation wall and extend away from the building a minimum of 6 feet. The depth of stabilization shall be a minimum of 10 feet below existing ground elevation. B. MATERIALS: 1. Shall be Hydrate Lime ASTM C-207. 2. Industrial detergent shall be added to the lime at the rate of 1/2 pint per sack of lime ta serve as a surfactant agent. C. APFLICATION: 1. Proportion the lime slurry within the range of 2.5 to 3.0 pounds of hydrated lime per gallon of water. Check the specific gravity of the slurry with Ertco Hydrometer No. 2545 at both the mixer tanks and injection pipes. The lime sZurry shall be continuously agitated to insure uniformity of mixture. 2. Injection pipe (s) shall penetrate the soil at approxi- mately two foot intervals to a depth of ten feet below existing ground elevation. These holes shall be located beginning two feet away from the foundation walls and extending out six feet from the foundation walls around the entire perimeter of the building. Inject material to refusal at each interval. The lawer portion of the injection pipe shall consist of a hole pattern that will uniformly disperse the lime slurry throughout the entire depth. Injection pressures should be adjusted to inject the greatest quantity of slurry possible within a range of 50 to 200 P.S.I. pump pressure. 3. Scarify the free surface lime into the top four inches to six inches of soil and Zightly recompact upon completion of the pressure injection. 4. The Contractor shall locate all underground utility and service lines before drilling holes and take precautions so that no damage will occur to them. TS-8