|
Title |
A Fundamental Study on the Material Characteristic of Micro-Admixture for Cement using Phosphogypsum and Kaolin
|
|
Keywords |
화학적 성질 ; 카올린 ; 기계적 성질 ; 인산부산석고 Chemical characteristic ; Kaolin ; Mechanical properties ; Phosphogypsum |
|
Abstract |
In this study, it is investigated the mechanical chemical properties of cement matrix using phosphogypsum and kaolin as a admixture for the substitutive materials to silica fume which is so expensive. For the test, phosphogypsum is modified as dihydrate, hemihydrate, type Ⅲ anhydrite, and type Ⅱ anhydrite, respectively and furnaced kaolin at 900℃ was also manufactured into meta kaolin by air cooling and water cooling method. The chemical characteristic and mechanical properties of various type of blended cements contained above mentioned gypsum and meta kaolin materials analyzed and compared with those characteristics of cement matrix with silica fume. From the test, the cement mixed meta kaolin made in water cooling has more excellent quality than other material.
|