Title:
Effect of the Blastfurnace Slag Content on the Frost Resistance of Neo-ferrite Cement Mortar
Author(s):
Kazunobu Hirai
Publication:
Symposium Paper
Volume:
79
Issue:
Appears on pages(s):
1039-1058
Keywords:
blast furnace slag; cements; compressive strength;
ferrites; freeze-thaw durability; mortars (material); porosity;
slags.
DOI:
10.14359/6738
Date:
5/1/1983
Abstract:
This paper presents the results of an investigation on the effect of blastfurnace slag on the frost resistance and poros-ity of neo-ferrite cement mortar. Neo-ferrite cement is a new type of ferrite cement produced from blastfurnace slag and con-verter slag that is a by-product of the steel industry. In this new cement, the amount of limestone as a raw material in cement production is reduced by approximately 2/3 in comparison with the ordinary portland cement. For the purpose of improving the durability of the cement, freezing and thawing tests were perpormed on prismatic mortars made from neo-ferrite cement incorporating three different amountsofslag by weight. The mortar specimen made from neo-ferritecementincorporating blastfurnaceslag approximately twenty percent (by weight) showed considerably improved resistance to frost action.