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

[21] Fly ash from coal combustion: Dependence of the concentration of various elements on the particle size [J].

Lanzerstorfer, Christof .

FUEL, 2018, 228 :263-271

[22] Reduction of metal leaching in brown coal fly ash using geopolymers [J].

Bankowski, P ;

Zou, L ;

Hodges, R .

JOURNAL OF HAZARDOUS MATERIALS, 2004, 114 (1-3) :59-67

[23] Effects of Ultrafine Fly Ash on Setting, Strength, and Porosity of Geopolymers Cured at Room Temperature [J].

Deb, Partha Sarathi ;

Sarker, Prabir Kumar .

JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2017, 29 (02)

[24] Compressive strength and hydrolytic stability of fly ash-based geopolymers [J].

Nikolic, Irena ;

Durovic, Dijana ;

Zejak, Radomir ;

Karanovic, Ljiljana ;

Tadic, Milena ;

Blecic, Dragoljub ;

Radmilovic, Velimir R. .

JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 2013, 78 (06) :851-863

[25] The effect of mechanical activation on the compressive strength of landfillied fly ash geopolymers [J].

Ambrus, Maria .

EPITOANYAG-JOURNAL OF SILICATE BASED AND COMPOSITE MATERIALS, 2019, 71 (05) :148-152

[26] Effects of Activators on Compressive Strength of Fly Ash-Based Geopolymers [J].

Wang, Dong Min ;

Cheng, Pei Fu ;

Fan, Fan ;

Hou, Yun Fen ;

Zhang, Liang ;

Li, Qiao .

NEW AND ADVANCED MATERIALS, PTS 1 AND 2, 2011, 197-198 :830-836

[27] Factors affecting the shrinkage of fly ash geopolymers [J].

Ridtirud, Charoenchai ;

Chindaprasirt, Prinya ;

Pimraksa, Kedsarin .

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2011, 18 (01) :100-104

[28] THE IMPORTANCE OF FLY ASH PROPERTY IN THE MANUFACTURE OF GEOPOLYMERS [J].

Zhang, Zuhua ;

Zhu, Yingcan ;

Reid, Andre ;

Wang, Hao .

ADVANCES IN CHEMICALLY-ACTIVATED MATERIALS (CAM'2014), 2014, 92 :120-130

[29] Geopolymers produced with fly ash and rice husk ash applied to CO2 capture [J].

Freire, Alisson Lopes ;

Moura-Nickel, Camilla Daniela ;

Scaratti, Gidiane ;

De Rossi, Andreia ;

Araujo, Maria Helena ;

De Noni Junior, Agenor ;

Rodrigues, Alirio Egidio ;

Rodriguez Castellon, Enrique ;

Peralta Muniz Moreira, Regina de Fatima .

JOURNAL OF CLEANER PRODUCTION, 2020, 273

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

G Moutaoukil ;

S Alehyen ;

I Sobrados ;

M Fadil ;

M Taibi .

Bulletin of Materials Science, 2021, 44

← 1 2 3 4 5 →