Significance of chromate (VI) reducing agents in cements

John Bensted

1/2006 vol. 11

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Significance of chromate (VI) reducing agents in cements

John Bensted ¹

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Birkbeck College Industrial Materials Group, (part of) Materials Chemistry Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.

Publication date: 2006-01-01

Cement Wapno Beton 11(1) 29-35 (2006)

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References (18)

REFERENCES (18)

H. Pisters, Chrom in Zement und Chromatekzem. Zement-Kalk-Gips 19, No. 10, 467-472 (1966).

Google Scholar

M. Frías and M. I. Sánchez Rojas, Determination and quantification of total chromium and water soluble chromium contents in commercial ce- ments. Cement and Concrete Research 25 (2), 433-439 (1995).

Google Scholar

J. Bensted, A discussion of the paper 'Determination and quantification of total chromium and water soluble chromium contents in commercial cements' by M. Frías and M. I. Sánchez Rojas. Cement and Concrete Research 26 (2), 329-330 (1996).

Google Scholar

J. Bensted and S. P. Varma, Studies of ettringite and its derivatives. Part 2 - Chromate substitution. Silicates Industriels 37 (12), 315-318 (1972).

Google Scholar

J. Bensted: White and coloured Portland cements. World Cement 24, No. 2, 13-19 (1993).

Google Scholar

S. Potgieter, N. Panichev, J. H. Potgieter and S. Panicheva, Determina- tion of hexavalent chromium in South African cements and cement-re- lated materials with electrothermal atomic absorption spectroscopy. Ce- ment and Concrete Research 33 (10), 1589-1593 (2003).

Google Scholar

European Cement Research Academy (ECRA), Chromate reduction in cement and concrete - The new European Directive 2003/53/EC and its consequences for process and analytics. Newsletter 1/2004, pp. 2-3. ECRA, Düsseldorf (2004).

Google Scholar

Official Journal of the European Union, Directive 2003/43/EC of the European Parliament and of the Council of 18 June 2003, amending for the 26th time Council Directive 76/769/EEC relating to the restrictions on the marketing and use of certain dangerous substances and preparations (nonylphenol, nonylphenol ethoxylate and cement). European Commis- sion, Brussels (2003).

Google Scholar

R. C. Weast (Ed.), 'Handbook of Chemistry and Physics', 51st Edition, 1970-1971. The Chemical Rubber Company, Cleveland, Ohio (1970).

Google Scholar

10.

Anon., Chromate reduction - a new challenge for the cement and con- crete industry. / Chromatreduzierung - eine neue Herausforderung für die Zement- und Betonindustrie. Cement International 2, No. 5, 51-53 (2004).

Google Scholar

11.

Anon., Eisen (II)-sulfat mit Liefergarantie. / Iron (II) sulphate with per- formance guarantee. Zement-Kalk-Gips International 57, No. 9, 26, 28-29 (2004).

Google Scholar

12.

Comité Européen de Normalisation, EN 197-1: 2000 (incorporating Amendment No. 1, 9 July 2004), Cement - Part 1: Composition, specifica- tions and conformity criteria for common cements.

Google Scholar

13.

Comité Européen de Normalisation, EN 196-10: Methods of testing cement - Part 10: Determination of the water soluble chromium (VI) con- tent of cement, (in preparation as prEN 196-10).

Google Scholar

14.

British Cement Association, BCA member companies preparing for new Chromium (VI) Directive. Concrete 39, No. 2, 3 (2005).

Google Scholar

15.

Comité Européen de Normalisation / International Organisation for Standardisation, EN ISO 10426-1:2000 (including Amendment A1:2002), Petroleum and natural gas industries Cements and materials for well cementing - Part 1; Specification.

Google Scholar

16.

J. Bensted, I cementi calcioalluminosi nella cementazione dei pozzi petroliferi. / Calcium aluminate cements in well cementing. L'Industria Italiana del Cemento No. 740, 150-169 (1999).

Google Scholar

17.

J. Bensted, Calcium aluminate cements, in "Structure and Performance of Cements", 2nd Edition, (Eds. J. Bensted and P. Barnes), pp.114-139. Spon Press, London and New York (2002).

Google Scholar

18.

R. G. J. Montgomery, Personal communication (2005).

Google Scholar

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