Process for producing a concrete and a mortar
AssigneesMotoyuki Suzuki, Tobishima Corporation, Aston Co., Ltd.
InventorsMotoyuki Suzuki, Kazuhiro Kasai, Masato Terazawa, Kazuyuki Nishiura, Hisashi Ando, Toshihiko Kawamura
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Abstract
A concrete admixture or a mortar admixture which is obtained by mixing a silicate with an acid in the presence of water and then solidifying the mixture. It is preferable that the silicate is sodium silicate and the acid is a carboxylic acid. This admixture can improve a tensile strength of a concrete or a mortar. Since a concrete or a mortar containing the admixture, cement, an aggregate and water is high in tensile strength, it can advantageously be used in various concrete structures, concrete products or mortar products.
Claims20
A process for producing a concrete which comprises blending cement, an aggregate, water and an admixture, wherein the admixture comprises a powder or granules containing a reaction product of an alkali metal silicate and a carboxylic acid, wherein a ratio of a metal atom of the silicate to a carboxyl group of the carboxylic acid is from 1 to 200, a water content is 50% by weight or less, and an amount of particles which are passed through a 2.5 mm-mesh sieve is 50% by weight or more.
A process for producing a mortar which comprises blending cement, a fine aggregate, water and an admixture, wherein the admixture comprises a powder or granules containing a reaction product of an alkali metal silicate and a carboxylic acid, wherein a ratio of a metal atom of the silicate to a carboxyl group of the carboxylic acid is from 1 to 200, a water content is 50% by weight or less, and an amount of particles which are passed through a 2.5 mm-mesh sieve is 50% by weight or more.
Dependencies are inferred from the claim text.