Effect of Curing Profile on Kaolin-based Geopolymers

被引：129

作者：

Heah, C. Y. ^{[1
]}

Kamarudin, H. ^{[1
]}

Al Bakri, A. M. Mustafa ^{[1
]}

Binhussain, M. ^{[2
]}

Luqman, M. ^{[1
]}

Nizar, I. Khairul ^{[3
]}

Ruzaidi, C. M. ^{[1
]}

Liew, Y. M. ^{[1
]}

机构：

[1] Univ Malaysia Perlis, Sch Mat Engn, Green Concrete UniMAP, Jejawi 02600, Perlis, Malaysia

[2] King Abdul Aziz City Sci & Technol, Riyadh, Saudi Arabia

[3] Uni MAP, Sch Environm Engn, Kamaishi, Iwate 0260001, Japan

来源：

2011 INTERNATIONAL CONFERENCE ON PHYSICS SCIENCE AND TECHNOLOGY (ICPST) | 2011年 / 22卷

关键词：

Geopolymer; Curing Temperature; Curing Time; Kaolin; Curing Profile; FLY-ASH; TEMPERATURE; METAKAOLIN; BINDERS;

D O I：

10.1016/j.phpro.2011.11.048

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Depending on the processing conditions, geopolymers can exhibit a wide variety of properties and characteristics. Curing profile serves as a crucial parameter in synthesis of geopolymers. In this paper, the influence of curing temperature and curing time on the properties of kaolin-based geopolymer was studied. The samples were separated into several curing conditions; including curing at ambient temperature, 40 degrees C, 60 degrees C, 80 degrees C and 100 degrees C for 1 day, and up to 3 days. The compressive strength and SEM analysis of geopolymer products were evaluated. Results showed that curing condition has a significant effect on the mechanical properties of kaolin-based geopolymer. Generally, curing at ambient temperature was not feasible, while increase in temperature favored the strength development. In addition, prolonged curing time improved the geopolymerization process, and led to higher strength gain. However, curing at high temperature for a long period of time caused failure of the sample at a later age. (C) 2011 Published by Elsevier B.V. Selection and/or peer-review under responsibility of Garry Lee.

引用

页码：305 / 311

页数：7

共 13 条

[1] Alkaline activation of metakaolin and calcium hydroxide mixtures: influence of temperature, activator concentration and solids ratio
Alonso, S
Palomo, A
[J]. MATERIALS LETTERS, 2001, 47 (1-2) : 55 - 62
[2] [Anonymous], 2008, ANN BOOK ASTM STAND
[3] Optimization of geopolymer synthesis by calcination and polycondensation of a kaolinitic residue
Cioffi, R
Maffucci, L
Santoro, L
[J]. RESOURCES CONSERVATION AND RECYCLING, 2003, 40 (01) : 27 - 38
[4] Mechanism of geopolymerization and factors influencing its development: a review
Khale, Divya
Chaudhary, Rubina
[J]. JOURNAL OF MATERIALS SCIENCE, 2007, 42 (03) : 729 - 746
[5] Kirschner AV, 2004, CERAM-SILIKATY, V48, P117
[6] Geopolymerisation: A review and prospects for the minerals industry
Komnitsas, Kostas
Zaharaki, Dimitra
[J]. MINERALS ENGINEERING, 2007, 20 (14) : 1261 - 1277
[7] Comparative performance of geopolymers made with metakaolin and fly ash after exposure to elevated temperatures
Kong, Daniel L. Y.
Sanjayan, Jay G.
Sagoe-Crentsil, Kwesi
[J]. CEMENT AND CONCRETE RESEARCH, 2007, 37 (12) : 1583 - 1589
[8] Mohsen Q, 2010, CERAM-SILIKATY, V54, P160
[9] Alkali-activated binders: A review. Part 2. About materials and binders manufacture
Pacheco-Torgal, Fernando
Castro-Gomes, Joao
Jalali, Said
[J]. CONSTRUCTION AND BUILDING MATERIALS, 2008, 22 (07) : 1315 - 1322
[10] Effect of curing temperature on the development of hard structure of metakaolin-based geopolymer
Rovnanik, Pavel
[J]. CONSTRUCTION AND BUILDING MATERIALS, 2010, 24 (07) : 1176 - 1183

← 1 2 →