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

页码：155 / 161

页数：7

共 50 条

[31] Optimization of compressive strength of fly ash-based geopolymers using central composite design [J].

Moutaoukil, G. ;

Alehyen, S. ;

Sobrados, I ;

Fadil, M. ;

Taibi, M. .

BULLETIN OF MATERIALS SCIENCE, 2021, 44 (02)

[32] Effect of Particle Size and Unburned Carbon Content of Fly Ash from Hadong Power Plant on Compressive Strength of Geopolymers [J].

Kang, Nam-Hee ;

Chon, Chul-Min ;

Jou, Hyeong-Tae ;

Lee, Sujeong .

KOREAN JOURNAL OF MATERIALS RESEARCH, 2013, 23 (09) :510-516

[33] Influence of preheating of fly ash precursors to produce geopolymers [J].

Ranjbar, Navid ;

Kuenzel, Carsten .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2017, 100 (07) :3165-3174

[34] Structural evolution and impact on the compressive strength of fly ash-based geopolymers [J].

El Hadrami, A. ;

Ojala, S. ;

Chatir, E. M. ;

Assaoui, J. ;

Bbrahmi, R. .

MOROCCAN JOURNAL OF CHEMISTRY, 2020, 8 (03) :615-626

[35] Geopolymers from fly ash and their gamma irradiation [J].

Leay, Laura ;

Potts, Alex ;

Donoclift, Thomas .

MATERIALS LETTERS, 2018, 227 :240-242

[36] Synthesis of Geopolymers from Mechanically Activated Coal Fly Ash and Improvement of Their Mechanical Properties [J].

Matsuoka, Mitsuaki ;

Yokoyama, Kaho ;

Okura, Kohei ;

Murayama, Norihiro ;

Ueda, Masato ;

Naito, Makio .

MINERALS, 2019, 9 (12)

[37] Mercury capture on coal combustion fly ash [J].

Hassett, DJ ;

Eylands, KE .

FUEL, 1999, 78 (02) :243-248

[38] Effect of phosphogypsum adding on setting kinetics and mechanical strength of geopolymers based on metakaolin or fly ash matrices [J].

Hattaf, Rabii ;

Aboulayt, Abdelilah ;

Lahlou, Nouha ;

Touhami, Mohamed Ouazzani ;

Gomina, Moussa ;

Samdi, Azzeddine ;

Moussa, Redouane .

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 31 (53) :62093-62103

[39] RETRACTED ARTICLE: ANFIS-based prediction of the compressive strength of geopolymers with seeded fly ash and rice husk–bark ash [J].

Ali Nazari ;

Gholamreza Khalaj ;

Shadi Riahi .

Neural Computing and Applications, 2013, 22 :689-701

[40] Synthesis of geopolymers derived from fly ash with an addition of perlite [J].

Baran, Pawel ;

Nazarko, Marzena ;

Wlosinska, Elzbieta ;

Kanciruk, Adam ;

Zarebska, Katarzyna .

JOURNAL OF CLEANER PRODUCTION, 2021, 293

← 1 2 3 4 5 →