Browse > Article
http://dx.doi.org/10.4191/KCERS.2007.44.1.006

Effect of Particle Size Distribution of Binder on the Rheological Properties of Slag Cement Pastes  

Hwang, Hae-Jeong (Major of Materials Science and Engineering, Kunsan National University)
Lee, Seung-Heun (Major of Materials Science and Engineering, Kunsan National University)
Lee, Won-Jun (R&D Center, Basic Materials)
Publication Information
Journal of the Korean Ceramic Society / v.44, no.1, 2007 , pp. 6-11 More about this Journal
Abstract
The rheological properties of slag cement pastes by effect of particle size distribution of binder were investigated using a Rheostress 1 rheometer (Haake) with a cylindrical spindle and the relationship between fluidity particle size distribution using the Rosin-Rammler equation. Samples are combined the two types of slag powder and OPC, fine slag particles sized Elaine specific surface area $8,000cm^2/g$, coarse slag particles sized Elaine specific surface area $2,000cm^2/g$, intermediate OPC particles $3,450cm^2/g$, used to search for the combination that would yield the best quality product. The all flow curves which were measured by rheometer showed hysterisis and could be classified into 4 types. When the combination was based on a ratio of 15-20 vol% fine particles, 40-50 vol% intermediate particles, 30-40 vol% coarse particles of the total volume, a high fluidity and low yield-strength was achieved. The Rosin-Rammler function can explain aboved correlation flow curve types. On type 1, the n-value had a correlation with plastic viscosity however the blend of type 2 and 3 showed consistent n-value regardless of plastic viscosity. In addition, the blend in type 4 tended to a rise in fluidity according to the increase of the n-value.
Keywords
Rheology; Fluidity; Cement; Blast furnace slag; Particle size distribution;
Citations & Related Records
연도 인용수 순위
  • Reference
1 G. H. Tattersall and P. F. G. Banfill, 'The Rheology of Fresh Concrete,' Pitman, 356, 1983
2 M. Cyr, C. Legrand, and M. Mouret, 'Study of the Shear Thickening Effect of Superplasticizers on the Rheological Behaviour of Cement Pastes Containing or not Mineral Additives,' Cement and Concrete Research, 30 [9] 1477-83 (2000)   DOI   ScienceOn
3 V. Morin, F. Cohen Tenoudji, A. Feylessoufi, and P. Richard, 'Superplasticizer Effects on Setting and Structuration Mechanisms of Ultrahigh-Performance Concrete,' Cement and Concrete Research, 31 [1] 63-71 (2001)   DOI   ScienceOn
4 M. Nehdi, S. Mindess, and P.-C. Aitcin, 'Rhology of High- Performance Concrete: Effect of Ultrafine Particle,' Cement and Concrete Research, 28 [5] 687-697 (1998)   DOI   ScienceOn
5 D. M. Roy, 'Alkali-Activated Cement: Opportunities and Challenges,' Cement and Concrete Research, 29 249-54 (1999)   DOI   ScienceOn
6 T. Bakharev, J. G. Sanjayan, and Y.-B. Cheng, 'Resistance of Alkali-Activated Slag Concrete to Acid Attack,' Cement and Concrete Research, 33 1607-1611 (2003)   DOI   ScienceOn
7 J. Davidovite, 'Proceeding. Engineering Technologies Symposium on Cement and Concrete in the Global Environment,' PCA, Chicago, Illiniois, 1993
8 Z. Chengzhi, W. Aiqin, T. Mingshu, and L. Xiaoyu, 'The Filling Role of Pozzolanic Material,' Cement and Concrete Research, 26 [6] 943-47 (1996)   DOI   ScienceOn
9 R. F. G. Banfill and D. C. Saunders, 'On the Viscometric Examination of Cement Pastes,' Cement and Concrete Research, 11 363-370 (1981)   DOI   ScienceOn
10 D. A. Williams, A. W. Saak, and H. M. Jennings, 'The Influence of Mixing on the Rheology of Fresh Cement Paste,' Cement and Concrete Research, 29 1491-1496 (1999)   DOI   ScienceOn
11 C. F. Ferraris, K. H. Obla, and R. Hill, 'The Influence of Mineral Admixtures on the Rheology of Cement Paste and Concrete,' Cement and Concrete Research, 31 [2] 245-55 (2001)   DOI   ScienceOn