Development and Properties of High Purity calcium Aluminate Cements from Indigenous Raw Materials

Dutta, B M and Ramakrishna Rao, M (1969) Development and Properties of High Purity calcium Aluminate Cements from Indigenous Raw Materials. NML Technical Journal, 11 (2). pp. 7-14.

[img]PDF
Restricted to NML users only. Others may use ->

2473Kb

Abstract

Calcium aluminate cements were prepared by using lime-stones containing 0.28 to 4.2% silica and Bayer's alumina. The cements made from high silica limestone contained considerable amounts of gehlenite and spinel which appea-red to have adversely affected the refractoriness of the cement. The cements made from low silica limestone and Bayer's alumina were pure and had high refractoriness. By D.T.A, X-ray and microscopial studies it was found that for obtaining cements containing over 90% CaO. Al2O3 and 90% CaO. 2Al2O3, firing temperatures of 1450°C espectively were necessary for essentially completing the solid state reactions. The cements so prepared had satisfactory setting and strength properties. (Mr. B.M. Dutta, Senior Scientific Assistant and M.R.K. Rao, Scientist, National Metallurgical Laboratory, Jamshedpur)

Item Type:Article
Official URL/DOI:http://library/articleDetails.jsp?recordid=214
Uncontrolled Keywords:Calcium aluminate cements; Bayer's alumina; Low silica limestone
Divisions:Metal Extraction and Forming
ID Code:1989
Deposited By:Dr. A K Sahu
Deposited On:21 Oct 2010 11:04
Last Modified:08 Nov 2012 11:57
Related URLs:

Repository Staff Only: item control page