JPH05239459
PURPOSE:To provide the subject material and method which enable the formation of a track bed having sufficient water permeability and supporting strength by a simple work in a short time. CONSTITUTION:This material is prepd. by mixing main components comprising cement and either a water-granulated i...
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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
17.09.1993
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Edition | 5 |
Subjects | |
Online Access | Get full text |
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Summary: | PURPOSE:To provide the subject material and method which enable the formation of a track bed having sufficient water permeability and supporting strength by a simple work in a short time. CONSTITUTION:This material is prepd. by mixing main components comprising cement and either a water-granulated iron-blast-furnace slag or a coal fly ash with auxiliary components comprising aluminum oxide, silicon dioxide, calcium oxide, sulfur trioxide, magnesium oxide, and sodium ligninsulfonate. The material is spread uniformly to a desired thickness and water is sprayed on it. When the fly ash is used, the spread material is lightly pressed from the upper side if necessary. The auxiliary components quicken the setting of the cement, which bonds sharp edges of granules of the slag or fly ash to each other and converts the material into a continuous void-contg. solid. |
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Bibliography: | Application Number: JP19920075663 |