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Title: Review of the grouting specification for the exploritory shaft, Basalt Waste Isolation Project (BWIP)
Authors: Basalt Waste Isolation Project.
United States. Department of Energy. Richland Operations Office.
Wakeley, Lillian D.
O'Neil, Edward F.
Boa, John A.
Keywords: Admixtures
Calcium sulfoaluminates
Cement grouts
Expansive cements
Shrinkage-compensating cements
Radioactive waste disposal
Basalt Waste Isolation Project
Publisher: Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical report (U.S. Army Engineer Waterways Experiment Station) ; SL-88-24.
Description: Technical Report
Abstract: An underground repository for commercially generated radioactive wastes was proposed for a site near Hanford, Washington. Plans for the exploratory shaft (ES) for this repository called for casing the hole and grouting the lower portion of the annulus with an expansive cement grout. A nonexpansive grout and chemical seals were to be used elsewhere in grouting the annulus. This report is a review of the first (and only) grouting specifications for the ES. This report describes many aspects of formulation and use of expansive grouts, and of grouting technology. It includes recommendations about appropriate grout materials, about the important properties of an expansive grout for this purpose, and about tests to quantify its properties. Factors which affect expansion -- such as temperature, workability, time of setting, and use of aggregate and pozzolan -- are discussed. Tests for determining the suitability of an expansive grout for this purpose also are recommended. Grout flow time, early heat evolution, and time of setting are important factors. Curing of specimens for tests of restrained linear expansion, compressive strength, and static modulus should simulate field conditions. Determination of bonding and permeability between grout and wall rock and between grout and casing also are important, as is the permeability of the grout itself.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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