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1 <br />Groundwater Division <br />1 <br />Volclay®Grout <br />High Solids Bentonite Grout <br />' (New 1-Step Mix) <br />Description: Volclay°Grout is a 20% solids, polymer free, single component, <br />' bentonite grout. <br />ReCOmmerided USe: Volclay®Grout is designed for use in sealing well casings and de- <br />' commissioning abandoned wells and boreholes, and sealing closed <br />loop heat pump systems. It forms a low permeable, flexible seal. <br />' Characteristics: o Single component for 1-step mixing, no initiator is needed. <br />o Low permeability, laboratory tests range from 1 x 10~' to 1 x lfr$ <br />cm/sec. <br />o Laboratory test range pH from 5 - 6. <br />o Will not damage well casing, no heat generated during mixing or <br />' curing. <br />o Remains flexible, maintains putty-like consistency over time and <br />will rehydrate. <br />' o Physically stable, will not flow through highly permeable soils. <br />o Longer placement time than with bentonite polymer grouts. <br />' o Can be positively placed using tremie pipe method ensuring <br />uniform, consistent application. <br />' Mixing and <br />Application: Add 50 lbs. of Volclay®Grout to 23 gallons of fresh water to produce <br />3.5 ft' of grout. This is a 1-step grout and NO INITIATOR IS NEC- <br />' ESSARY. For best results, the grout should be mixed with a venturi <br />type jet hopper or commercial grout mixer. Volclay®Grout remains <br />placeable for at least two hours. The grout should be pumped <br />t through a side discharge tremie pipe or other applicable method <br />which displaces the grout from the bottom of the well up to the <br />' surface. Pumping should continue until the grout purged to the <br />surface is at the proper mud weight of 9.41bs./gallon. <br />;• Packaging: 50 Ib. multi-wall, paper bag, 48 bags per pallet. All pallets stretch- <br />wrapped. <br />1 <br />