초록 ▼

A binder composition for Portland cement is disclosed, said composition including 100 parts by weight metakaolin and, based upon said metakaolin, from 20 to 70 parts by weight slag; from 85 to 130 parts by weight of at least 1 material selected from the class consisting of fly ash, calcined shale, a

A binder composition for Portland cement is disclosed, said composition including 100 parts by weight metakaolin and, based upon said metakaolin, from 20 to 70 parts by weight slag; from 85 to 130 parts by weight of at least 1 material selected from the class consisting of fly ash, calcined shale, and calcined clay; from 70 to 215 parts by weight finely divided silica, preferably amorphous silica; and from 55 to 145 parts by weight of a mixture of potassium silicate and potassium hydroxide, wherein at least 55 parts by weight is potassium silicate. The binder composition can be mixed with Portland cement or with a combination of Portland cement and fly ash to provide a composition curable to a material having a high early strength and a high ultimate strength.

대표청구항 ▼

A binder composition for Portland cement comprising 100 parts, by weight, metakaolin and, based upon said metakaolin: 20 to 70 parts by weight slag 85 to 130 parts by weight of at least one material selected from the class consisting of fly ash, calcined shale, and calcined clay 70 to 215 parts amor

A binder composition for Portland cement comprising 100 parts, by weight, metakaolin and, based upon said metakaolin: 20 to 70 parts by weight slag 85 to 130 parts by weight of at least one material selected from the class consisting of fly ash, calcined shale, and calcined clay 70 to 215 parts amorphous silica 55 to 145 parts of a material selected from the class consisting of potassium silicate and potassium hydroxide, at least 55 parts being potassium silicate.