Internal composition of 20-year-old fly ash and slag-blended ordinary portland cement pastes

被引：0
|
作者：
Luke, Karen [1 ]
Lachowski, Eric [2 ]
机构：
[1] Trican Well Service Ltd., Cementing R and D, Calgary, AB T2Z 4M3, Canada
[2] Department of Chemistry, University of Aberdeen, Aberdeen, United Kingdom
来源：
Journal of the American Ceramic Society | 2008年 / 91卷 / 12期
关键词：
Pozzolanic materials have been used as an extender in concrete for more than half a century; providing various degrees of durability against chemical attack. Most studies use short term data to develop thermodynamic models to predict long term performance. This paper presents data on OPC and OPC blended cements at 30% replacement with either Class F fly ash or blast furnace slag that have been cured under controlled conditions for 20 years. The aqueous phase composition was characterized in terms of Na+; K+; Ca2+; Si4+; Al3+; Mg2+ and Cl -. DTA; XRD and a combination of scanning and transmission electron microscopy along with energy dispersive X-ray analysis on argon-milled sections were used to determine the mineralogy and microstructure of the solid phase assemblage. © 2008 The American Ceramic Society;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：4084 / 4092
相关论文
共 45 条
  • [1] Internal Composition of 20-Year-Old Fly Ash and Slag-Blended Ordinary Portland Cement Pastes
    Luke, Karen
    Lachowski, Eric
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (12) : 4084 - 4092
  • [2] Effects of Municipal Solid Waste Incinerator Fly Ash Slag on the Strength and Porosity of Slag-Blended Cement Pastes
    Lin, Kae-Long
    Lin, Deng-Fong
    Chao, Sao-Jeng
    ENVIRONMENTAL ENGINEERING SCIENCE, 2009, 26 (06) : 1081 - 1086
  • [3] Electron microscopy study of ordinary portland cement and ordinary portland cement-pulverized fuel ash blended pastes
    Rodger, S.A., 1600, Pharmacotherapy Publications Inc. (72):
  • [4] Electron microscopy study of ordinary portland cement and ordinary portland cement-pulverized fuel ash blended pastes
    Rodger, Sally A.
    Groves, Geoffrey W.
    1600, (72):
  • [5] Composition and microstructure of 20-year-old ordinary Portland cement-ground granulated blast-furnace slag blends containing 0 to 100% slag
    Taylor, R.
    Richardson, I. G.
    Brydson, R. M. D.
    CEMENT AND CONCRETE RESEARCH, 2010, 40 (07) : 971 - 983
  • [6] Pressure-aided fabrication of CNT-incorporated composites made with fly ash or slag-blended Portland cement
    Jang, Daeik
    Yoon, H. N.
    Park, Solmoi
    Kim, Seonhyeok
    Bae, Jin-Ho
    Kim, Naru
    Kim, G. M.
    Seo, Joonho
    COMPOSITE STRUCTURES, 2023, 313
  • [7] The influence of addition of fly ash on the properties of ordinary Portland cement pastes and mortars
    Abd El Aziz, MA
    SILICATES INDUSTRIELS, 2003, 68 (5-6): : 75 - 79
  • [8] ELECTRON-MICROSCOPY STUDY OF ORDINARY PORTLAND-CEMENT AND ORDINARY PORTLAND CEMENT-PULVERIZED FUEL ASH BLENDED PASTES
    RODGER, SA
    GROVES, GW
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1989, 72 (06) : 1037 - 1039
  • [9] Microstructure and composition characterisation of three 20-year-old GGBS-OPC blended pastes
    Li, Shuangxin
    CONSTRUCTION AND BUILDING MATERIALS, 2016, 123 : 226 - 234
  • [10] Quantification of fly ash in hydrated, blended Portland cement pastes by backscattered electron imaging
    Deschner, F.
    Muench, B.
    Winnefeld, F.
    Lothenbach, B.
    JOURNAL OF MICROSCOPY, 2013, 251 (02) : 188 - 204
12345