Compressive Strength and Microstructure of Fly Ash and Metakaolin Geopolymer Blend Towards NaOH Concentration

被引：0
|
作者：
Zulkifly, K. [1 ,2 ]
Yong, Heah Cheng [1 ,2 ]
Ming, Liew Yun [1 ,2 ]
Abdullah, M. M. A. B. [2 ,3 ]
Abdullah, S. F. A. [1 ,2 ]
机构：
[1] Univ Malaysia Perlis, Sch Mat Engn, Kangar 01000, Perlis, Malaysia
[2] Univ Malaysia Perlis, Ctr Excellence Geopolymer & Green Technol CEGeoGT, Green Design & Manufacture Res Grp, Kangar 01000, Perlis, Malaysia
[3] Univ Malaysia Perlis, Sch Engn Technol, KampusUniCITI Alam, Padang Besar 02100, Perlis, Malaysia
来源：
GREEN DESIGN AND MANUFACTURE: ADVANCED AND EMERGING APPLICATIONS | 2018年 / 2030卷
关键词：
RED MUD; ACTIVATOR; HYDRATION;
D O I：
10.1063/1.5066911
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The aims of this study were to investigate the use of fly ash and metakaolin blend in assessing the effect of NaOH concentration on geopolymer pastes. Various concentration of alkaline solution is added to activate the precursors and the influence of the strength was also investigated by changing the alkaline solution concentrations (6M, 8M, 10M, 12M and 14M). Porosity, water absorption and compressive strength were recorded and analysed. The compressive strength tests were tested at 7 and 28 days, respectively. 14M NaOH concentration indicated the highest strength of 32 MPa at 7 days of testing. The highest strength geopolymeric paste with the compressive strength in the order of 43.61 MPa at 28 days can be obtained by activating fly ash and metakaolin blend with 10 M NaOH. This ratio, the fly ash and metakaolin geopolymer blend produced maximum strength results and the analysis of the structure through SEM led to the formation of denser matrix of hydration products having a considerable influence from the structure of optimum NaOH concentration.
引用
收藏
页数：7
相关论文
共 50 条
  • [1] Compressive Strength and Microstructure of Fly Ash and Metakaolin Geopolymer Blend Towards NaOH Concentration
    Zulkifly, K.
    Yong, Heah Chen
    Ming, Liew Yun
    Abdullah, M. M. A. B.
    Abdullah, S. F. A.
    [J]. GREEN DESIGN AND MANUFACTURE: ADVANCED AND EMERGING APPLICATIONS, 2018, 2030
  • [2] The Synergetic Compressive Strength and Microstructure of Fly Ash and Metakaolin Blend Geopolymer Pastes
    Zulkifly, K.
    Heah, C. Y.
    Liew, Y. M.
    Abdullah, M. M. A. B.
    Abdullah, S. F. A.
    [J]. 4TH ELECTRONIC AND GREEN MATERIALS INTERNATIONAL CONFERENCE 2018 (EGM 2018), 2018, 2045
  • [3] Strength and Microstructure of Geopolymer Based on Fly Ash and Metakaolin
    Barbhuiya, Salim
    Pang, Edmund
    [J]. MATERIALS, 2022, 15 (10)
  • [4] Orthogonal analysis and mechanism of compressive strength and microstructure of the metakaolin-fly ash geopolymer
    Yuan, Long
    Ma, Yichao
    Zhang, Jian
    Men, Jiahui
    Sun, Tao
    Zhao, Hongche
    Wu, Hao
    Wang, Hongguang
    Dai, Shoushuai
    [J]. CASE STUDIES IN CONSTRUCTION MATERIALS, 2022, 17
  • [5] Effect of NaOH Concentration and Curing Regimes on Compressive Strength of Fly Ash-Based Geopolymer
    Yomthong, Krissanapat
    Wattanasiriwech, Darunee
    Aungkavattana, Pavadee
    Wattanasiriwech, Suthee
    [J]. MATERIALS TODAY-PROCEEDINGS, 2021, 43 : 2647 - 2654
  • [6] Composition and microstructure of fly ash geopolymer containing metakaolin
    Pimraksa, K.
    Chareerat, T.
    Chindaprasirt, E.
    Mishima, N.
    Hatanaka, S.
    [J]. EXCELLENCE IN CONCRETE CONSTRUCTION THROUGH INNOVATION, 2009, : 201 - +
  • [7] Effect of NaOH Concentration on the Strength of Non Sodium Silicate Fly Ash Geopolymer
    Asif, Afshan
    Man, Zakaria
    Azizli, Khairun Azizi Mohd
    Nuruddin, Muhd Fadhil
    Ismail, Lukman
    [J]. PROCESS AND ADVANCED MATERIALS ENGINEERING, 2014, 625 : 102 - 105
  • [8] EFFECT OF NAOH MOLAR CONCENTRATION ON MICROSTRUCTURE AND COMPRESSIVE STRENGTH OF DOLOMITE/FLY ASH-BASED GEOPOLYMERS
    Azimi, Emy Aizat
    Salleh, M. A. A. Mohd
    Abdullah, Mohd Mustafa Al Bakri
    Aziz, Ikmal Hakem A.
    Hussin, Kamarudin
    Chaiprapa, Jitrin
    Vizureanu, Petrica
    Yoriya, Sorachon
    Nabialek, Marcin
    Wyslocki, Jerzy J.
    [J]. ARCHIVES OF METALLURGY AND MATERIALS, 2022, 67 (03) : 993 - 998
  • [9] Strength and Microstructure of Class-C Fly Ash and GGBS Blend Geopolymer Activated in NaOH & NaOH + Na2SiO3
    Sasui, Sasui
    Kim, Gyuyong
    Nam, Jeongsoo
    Koyama, Tomoyuki
    Chansomsak, Sant
    [J]. MATERIALS, 2020, 13 (01)
  • [10] Workability and Compressive Strength Properties of Fly Ash-Metakaolin based Flowable Geopolymer Mortar
    Al-Jaberi, L. A.
    Ali, A. M.
    Al-Jadiri, R. S.
    Al-Khafaji, Z.
    [J]. ELECTRONIC JOURNAL OF STRUCTURAL ENGINEERING, 2023, 23 (04):
12345