Inorganic Chemicals Industry ›› 2020, Vol. 52 ›› Issue (12): 75-79.doi: 10.11962/1006-4990.2020-0023

• Environment·Health·Safety • Previous Articles     Next Articles

Modification study and mechanism analysis on interface structure between ferrochromium slag aggregate and cement paste

Hang Meiyan1(),Peng Yajuan1(),Lu Lan2,Zhang Haiyan3,Tao Xu3   

  1. 1. Inner Mongolia University of Science and Technology,Baotou 014010,China
    2. Jian Yan Hua Ce(Hangzhou) Science & Technology Co.,Ltd.
    3. Mingtuo Group Chromium Technology Co.,Ltd.
  • Received:2020-06-13 Online:2020-12-10 Published:2020-12-15
  • Contact: Peng Yajuan E-mail:861542145@qq.com;1277548986@qq.com

Abstract:

Ferrochromium slag is a kind of porous aggregate with rough surface structure.Based on its influence on the structure of interface transition zone and bond strength,the modifier suitable for ferrochromium slag was designed by orthogonal test.According to the principle of wall building,ferrochromium slag was modified to reduce its crushing value and water absorption.The mechanism of modifying ferrochromium slag with modifier was studied.By effective improving the interface structure between ferrochromium slag and slurry,ferrochromium slag can be used as high-quality concrete aggregate,and a high-strength modified ferrochromium slag mortar was prepared.This study provided a theoretical basis for the large use of ferrochromium slag,with energy saving and emission reduction benefits.

Key words: ferrochromium slag, aggregate interface structure, modification mechanism, mortise and tenon structure, interface repair

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