HIGH STRENGTH GEOPOLYMERS PRODUCED FROM COAL COMBUSTION FLY ASH

被引：0
|
作者：
Nugteren, H. W. [1 ]
Butselaar-Orthlieb, V. C. L. [2 ]
Izquierd, M. [3 ]
机构：
[1] Delft Univ Technol, Dept Chem Engn, Sect Prod & Proc Engn, NL-2628 BL Delft, Netherlands
[2] Delft Univ Technol, Dept Chem Engn, Sect NanoStruct Mat, NL-2628 BL Delft, Netherlands
[3] CSIC, Inst Earth Sci Jaume Almera, E-08028 Barcelona, Spain
来源：
GLOBAL NEST JOURNAL | 2009年 / 11卷 / 02期
关键词：
fly ash; geopolymer; compressive strength; workability; particle size;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
High strength geopolymers were produced from coal combustion fly ashes. These matrices reached compressive strength values over 100 MPa, much stronger and denser than obtained by using Portland Cement binders. Size fractions were obtained by size separation techniques and the relationship between strength and particle size was investigated. The differences in compressive strength measured in the geopolymers made from fine fractions, the original fly ash and a coarse fraction of the same ash, were not significantly higher than the variation found for a reference geopolymer material. Therefore, a direct size-strength relationship could not be proven. Moreover, the chemistry and the pH of the fractions also varied, and this might as well has played a role in the strength development.
引用
收藏
页码：155 / 161
页数：7
相关论文
共 50 条
  • [21] Sources of unburned carbon in the fly ash produced from low-NOx pulverized coal combustion
    Veranth, JM
    Pershing, DW
    Sarofim, AF
    Shield, JE
    TWENTY-SEVENTH SYMPOSIUM (INTERNATIONAL) ON COMBUSTION, VOLS 1 AND 2, 1998, : 1737 - 1744
  • [22] Production of High Compressive Strength Geopolymers Considering Fly Ash or Slag Chemical Composition
    Koumoto, Tatsuya
    JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2019, 31 (08)
  • [23] Distribution of oxides in fly ash controls strength evolution of geopolymers
    Tennakoon, Chandani
    Nazari, Ali
    Sanjayan, Jay G.
    Sagoe-Crentsil, Kwesi
    CONSTRUCTION AND BUILDING MATERIALS, 2014, 71 : 72 - 82
  • [24] Factors influencing the compressive strength of fly ash based geopolymers
    Soutsos, Marios
    Boyle, Alan P.
    Vinai, Raffaele
    Hadjierakleous, Anastasis
    Barnett, Stephanie J.
    CONSTRUCTION AND BUILDING MATERIALS, 2016, 110 : 355 - 368
  • [25] Hybrid Geopolymers from Fly Ash and Polysiloxanes
    Roviello, Giuseppina
    Ricciotti, Laura
    Molino, Antonio Jacopo
    Menna, Costantino
    Ferone, Claudio
    Cioffi, Raffaele
    Tarallo, Oreste
    MOLECULES, 2019, 24 (19):
  • [26] Synthesis and characterization of geopolymers derived from coal gangue, fly ash and red mud
    Koshy, Nevin
    Dondrob, Kunga
    Hu, Liming
    Wen, Qingbo
    Meegoda, Jay N.
    CONSTRUCTION AND BUILDING MATERIALS, 2019, 206 : 287 - 296
  • [27] Geopolymers from fly ash and their gamma irradiation
    Leay, Laura
    Potts, Alex
    Donoclift, Thomas
    MATERIALS LETTERS, 2018, 227 : 240 - 242
  • [28] Synthesis of Geopolymers from Mechanically Activated Coal Fly Ash and Improvement of Their Mechanical Properties
    Matsuoka, Mitsuaki
    Yokoyama, Kaho
    Okura, Kohei
    Murayama, Norihiro
    Ueda, Masato
    Naito, Makio
    MINERALS, 2019, 9 (12)
  • [29] Mercury capture on coal combustion fly ash
    Hassett, DJ
    Eylands, KE
    FUEL, 1999, 78 (02) : 243 - 248
  • [30] Reduction of metal leaching in brown coal fly ash using geopolymers
    Bankowski, P
    Zou, L
    Hodges, R
    JOURNAL OF HAZARDOUS MATERIALS, 2004, 114 (1-3) : 59 - 67
12345