Producing Portland cement from iron and steel slags and limestone

被引：182

作者：

Monshi, A ^{[1
]}

Asgarani, MK

机构：

[1] Univ Technol, Dept Mat, Esfahan 84154, Iran

[2] Islamic Azad Univ, Dept Mat, Najaf Abad Branch, Iran

来源：

CEMENT AND CONCRETE RESEARCH | 1999年 / 29卷 / 09期

关键词：

clinker; Portland cement; granulated blast-furnace slag; compressive strength;

D O I：

10.1016/S0008-8846(99)00028-9

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The slags from blast furnace (iron making) and converter (steel making) after magnetic separation are mixed with limestone of six different compositions. The ground materials are fired in a pilot plant scale rotary kiln to 1350 degrees C for 1 h. The clinker is cooled, crushed, mixed with 3% gypsum, and ground to fineness of more than 3300 cm(2)/g. Initial and final setting times, consistency of standard paste, soundness, free CaO, and compressive and fractural strengths after 3, 7, and 28 days are measured. Samples with higher lime saturation factor developed higher C(3)S content and better mechanical properties. Blending 10% extra iron slag to a cement composed of 49% iron slag, 43% calcined lime, and 8% steel slag kept the compressive strength of concrete above standard values for type I ordinary Portand cement. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1373 / 1377

页数：5