发明名称 |
CEMENT ADMIXTURE, PREPARATION METHOD THEREOF, AND COMPOSITION USING THE ADMIXTURE |
摘要 |
PURPOSE: A cement admixture, its preparation method and a mortar or cement composition using the admixture are provided, which is economical, can be produced massively and has good strength. CONSTITUTION: A cement admixture is prepared by wet-pulverizing at least one material selected from natural kaolin and halloysite with 200 mesh sieve; molding the wet pulverized material to the shape of sphere whose diameter is 5-30 mm or cylinder whose diameter is 5-30 mm and whose length is less than two times of the diameter and drying it; sintering the molded body at the temperature of 750-900°C; and dry-pulverizing the molded body. Preferably the mean size of dry pulverized one is in the range of 4 to 8 mm and its maximum size is less than 70 mm. The cement admixture is such that its ratio of alumina to silica is 1.0:1.2 to 1.0;1.6 and its density is 2.5-2.6. The mortar or cement composition comprises 5-20 wt.% of the cement admixture based on the total amount of cement.
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申请公布号 |
KR20000037750(A) |
申请公布日期 |
2000.07.05 |
申请号 |
KR19980052487 |
申请日期 |
1998.12.02 |
申请人 |
ASIAN CERATEC CORPORATION |
发明人 |
NITTA, KOUZI;JUNG, CHUNG KIL;PARK, JUNG KWON |
分类号 |
C04B14/10;C04B18/02;(IPC1-7):C04B14/10 |
主分类号 |
C04B14/10 |
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