Hydration behavior of portland cements with different hemihydrate/gypsum ratios in the presence of common chemical admixtures

Journal of ASTM International

Volumn 2, Issue 2, 2005, Pages 51-62

  Farrington, Stephen A ^a   Christensen, Bruce J ^a  

^a Degussa Admixtures Inc   (United States)

Author keywords

Calorimetry; Chemical admixtures; Gypsum; Hemihydrate; Portland cement

Indexed keywords

CHEMICAL ADMIXTURES; CLINKER; HEMIHYDRATE; SOLUBLE ANHYDRITE;

CALCIUM COMPOUNDS; GYPSUM; HYDRATION; MIXTURES; SULFATE MINERALS;

PORTLAND CEMENT;

EID: 30644459376     PISSN: None     EISSN: None     Source Type: Journal    
DOI: 10.1520/JAI12478     Document Type: Article

References (10)

1. Basile, F., et al., "Effect of the Gypsum State in Industrial Cements on the Action of Superplasticizers," Cement and Concrete Research, Vol. 17, No. 5, 1987, pp. 715-722.
2. Bensted, J., "Effects of the Clinker - Gypsum Grinding Temperature upon Early Hydration of Portland Cement," Cement and Concrete Research, Vol. 12, No. 3., 1982, pp. 341-348.
3. Dodson, V. H. and Hayden, T. D., "Another Look at the Portland Cement/Chemical Admixture Incompatibility Problem," Cement, Concrete, and Aggregates, Vol. 11, No. 1, 1989, pp. 52-56.
4. Kumi, N., et al., "Effects of Polymorphism of Calcium Sulfate and Soluble Alkalies on Fluidity of Cement Paste Containing Polycarboxylic Acid-Type Superplasticizer," JCA Proceedings of Cement and Concrete, No. 52, 1998, pp. 152-157.
5. Johansen, V., "Cement Production and Cement Quality," Materials Science of Concrete I, American Ceramic Society, 1989, pp. 27-72.
6. Lerch, W., "The Influence of Gypsum on the Hydration and Properties of Portland Cement Pastes," Proceedings of the American Society for Testing Materials, Vol. 46, 1946, pp.1252-1297.
7. Mindness, S. and Young, J. F., Concrete, Prentice-Hall, Englewood Cliffs, New Jersey, 1981.
8. th International Congress on the Chemistry of Cement (ICCC), The Cement and Concrete Institute of South Africa, 2003, pp. 550-559.
9. th CANMET/ACI Conference on Superplasticizers and Other Chemical Admixtures in Concrete SP-217, ACI International, 2003, pp. 529-542.
10. Technical Note VCCTL-03: Quantitative Determination of Calciumsulfate Dihydrate and Calciumsulfate Hemihydrate in Cement by Means of Thermogravimetric Analysis (from Dyckerhoff Zement), NIST, 2001.