Development of large steelmaking slag blocks using a new carbonation process

被引：27
作者：
Isoo, T
Takahashi, T
Okamoto, N
Fukuhara, M
机构：
[1] NKK Corp, Fukuyama Works, Fukuyama, Hiroshima 7218510, Japan
[2] Okayama Univ Sci, Dept Appl Chem, Okayama 7000005, Japan
来源：
ADVANCES IN CEMENT RESEARCH | 2000年 / 12卷 / 03期
关键词：
D O I：
10.1680/adcr.2000.12.3.97
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Porous slag blocks (1 m(3)) were produced by carbonation of steelmaking slag over a period of 12 days. The compressive strength and bulk density of the blocks were 18.4 +/ 3.3 MPa and 2.4 g/cm(3), respectively. To make a large block, the optimum amount of water and bulk density of the compact were 5.3-6.3 mass% and 2.30-2.37 g/cm(3), respectively. The carbonation reaction occurred homogeneously in the blocks, and the amount of CO2 that reacted with the slag was approximately 6 mass% at all depths from the surface of the block. When left exposed to various weather conditions for 1 year, the blocks showed no cracks or destruction.
引用
收藏
页码：97 / 101
页数：5
相关论文
共 20 条
[11]  
Kondo R., 1977, GYPSUM LIME, V147, P61, DOI 10.11451/mukimate1953.1977.61
[12]  
KOYAMA T, 1980, TETSU TO HAGANE, V66, pS917
[13]  
Maycock J. Norman, 1974, CEMENT CONCRETE RES, V4, P69
[14]  
Owen W., 1903, U. S. Patent, Patent No. 731608
[15]  
SAKURAI E, 1999, 82 STEELM 58 IRONM C
[16]  
Suito H., 1977, Tetsu-to-Hagane, V63, P1252, DOI DOI 10.2355/TETSUTOHAGANE1955.63.8_1252
[17]  
Taylor H.F.W., 1964, The chemistry of cements
[18]  
WALZ EHK, 1972, BETON, V7, P296
[19]   ACCELERATED CURING OF COMPACTED CALCIUM SILICATE MORTARS ON EXPOSURE TO CO2 [J].
YOUNG, JF ;
BERGER, RL ;
BREESE, J .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1974, 57 (09) :394-397
[20]  
Zdenek S.M., 1971, Cem. Concr. Res., V1, P645, DOI DOI 10.1016/0008-8846(71)90019-6
12