• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Bian, Zuwang (Bian, Zuwang.) [1] | Jin, Guowang (Jin, Guowang.) [2] | Ji, Tao (Ji, Tao.) [3] (Scholars:季韬)

Indexed by:

EI SCIE

Abstract:

The utilization of ferronickel slag into the alkali-activated system is promising to mitigate environmental pollution. Due to slower reaction rate and satisfactory strength, a combined activator of Ca(OH)2 and Na2CO3 (molar ratio of 1: 1) was used to investigate the effect of combined activator content (i.e. 3, 5, 7 and 9% Na2O equivalent) on the workability, water requirement of normal consistency, setting time, soundness and compressive strength of alkali-activated ferronickel slag (AFS) system. X-ray diffraction, thermogravimetric analysis, scanning electron microscopy and mercury intrusion porosimetry were used to characterize the reaction products and pore structure. Results indicate that the workability of AFS system decreases with the increase of Na2O equivalent, while the compressive strength first increases and then decreases. The reaction process is accelerated with Na2O equivalent from 3% to 7%, thereby promoting the formation of C-(A)-S-H gel, calcite and hydrotalcite that can improve the compressive strength. Whereas an increasing porosity due to microcracks is observed at 9% Na2O equivalent, thus resulting in the decrease of compressive strength. Considering the workability and compressive strength, the optimal Na2O equivalent in AFS system is 5%.

Keyword:

Calcium oxide Ferronickel slag Mechanical properties Sodium carbonate Workability

Community:

  • [ 1 ] [Bian, Zuwang]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Jin, Guowang]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Ji, Tao]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • 季韬

    [Ji, Tao]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China

Show more details

Related Keywords:

Source :

CEMENT & CONCRETE COMPOSITES

ISSN: 0958-9465

Year: 2021

Volume: 123

9 . 9 3

JCR@2021

1 0 . 8 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:142

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 47

SCOPUS Cited Count: 52

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

Online/Total:155/10011020
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1