Commander & Director, U.S. Army Engineer Waterways Experiment Station, ATTN: CEWES-CT-C, 3909 Halls Ferry Road, Vicksburg, MS 39180-6199

56 -- GROUT WITH FIBER AND AQUAGEL POC Point of Contact, Mallorie O. Irwin 601-634-4116 The USAE Waterways Experiment Station (WES) proposes to award a purchase order to Mississippi Materials, Vicksburg, Mississippi, for approximately 550-750 cubic yards of grout mix to be delivered to WES' ''Big Black'' Test Site 20 miles south of Vicksburg on Highway 27 in Warren Co., MS. A special mixture designed by WES to stay soft under water, to simulate near shore in situ materials is required. Each cubic foot of material uses 2.56 pounds of Type 1 Portland Cement, 38.0 pounds of fly ash, 45.7 pounds of water, a small amount of air-entraining agent, and 3.85 pounds of a commercially available Baroid product, Aquagel. The Aquagel will be provided by WES and added by WES personnel to the batches by hand. The grout will be placed in a sand ''form'' in the bottom of one of the test basins to a 6 foot depth. Because of the placement technique, the exact volume of grout required is not known. The delivery date is to be on or about 23 August 1995 and will proceed continuously until the 6 foot depth is obtained (estimated 15-20 hours). Since this grout will begin to set-up immediately, and the placement technique requires to mix to be in a very liquid form, the grout must be delivered to the site within 45 minutes of loading the mixture into batch trucks. The sole source justification for procurement of the mixture is based on the afore mentioned allowable time for delivery and placement. Mississippi Materials is the only known vendor able to meet the required delivery specifications. Any inquiries must be received with 15 days from date of publication of this notice. Synopsis published for information purposes only; solicitation documents are not available. (0213)

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