METHOD OF STRENGTHENING GEOLOGICAL FORMATIONS

METHOD OF STRENGTHENING GEOLOGICAL FORMATIONS The present invention relates to a method of strengthening geological formations in underground workings or mines by introducing reaction mixtures containing a polyisocyanate component a), a polyol component b) and optionally auxiliary agents and additiv...

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Bibliographic Details
Main Authors KAPPS, MANFRED, MANN, MAX
Format Patent
LanguageEnglish
French
Published 26.09.1989
Edition4
Subjects
ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
DYES
EARTH DRILLING
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
GALLERIES
HYDRAULIC ENGINEERING
LARGE UNDERGROUND CHAMBERS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MINING
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
SHAFTS
SOIL SHIFTING
THEIR PREPARATION OR CHEMICAL WORKING-UP
TUNNELS
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:METHOD OF STRENGTHENING GEOLOGICAL FORMATIONS The present invention relates to a method of strengthening geological formations in underground workings or mines by introducing reaction mixtures containing a polyisocyanate component a), a polyol component b) and optionally auxiliary agents and additives c) into the formation which is required to be strengthened and reacting the mixtures to form polyurethanes, wherein polyol component b) contains mixtures of (i) organic polyhydroxyl compounds having a hydroxyl number of about 100 to 800 and (ii) monovalent alcohols having a molecular weight of 32 to about 600, component (ii) being present in an amount of about 0.01 to 20% by weight, based on the total quantity of component b).
Bibliography:Application Number: CA19860500222