PUMPABLE CEMENTITIOUS GROUT SYSTEM FOR USE IN THE PRODUCTION OF UNDERGROUND ROOF-SUPPORT SYSTEMS AND OTHER LOAD-BEARING STRUCTURES
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United States of America Patent
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app pub date -
Mar 6, 2008
filing date -
Mar 6, 2008
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Abstract
A pumpable grout mixture includes a first grout stream including a hydraulically active cementitious material suitable for cementing in underground applications and water, and a second grout stream including a pozzalanic material and an inorganic gelling agent wherein the two grout streams are combined into a grout mixture to form a self-supporting load bearing structure.
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