Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1061/(ASCE)MT.1943-5533.0002209 |
Development and Characterization of Fly Ash-Slag Blended Geopolymer Mortar and Lightweight Concrete | |
Ismail, Najif; El-Hassan, Hilal | |
通讯作者 | El-Hassan, Hilal |
来源期刊 | JOURNAL OF MATERIALS IN CIVIL ENGINEERING
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ISSN | 0899-1561 |
EISSN | 1943-5533 |
出版年 | 2018 |
卷号 | 30期号:4 |
英文摘要 | A synopsis of an experimental program on the development of a sustainable fly ash-slag blended geopolymer mortar (GPM) and lightweight geopolymer concrete (LGPC) is presented. Geopolymer mortar mixes were prepared incorporating industrial by-products and sustainable desert dune sand to study the effect of different mixing variables, including binding materials, curing temperature, and alkaline activator solution composition and content, on the rheological and mechanical performance. Optimum mix designs were then formulated into producing LGPC samples with different binding materials and curing temperature. Lightweight geopolymer concrete specimens exhibited a brittle behavior with a weakened structure due to low-strength lightweight aggregates. Lightweight geopolymer concrete made with dune sand and a fly ash to slag ratio of 3:1 resulted in the highest compressive strength when cured for 24h at 60 degrees C. Microstructure characterization of LGPC specimens was also conducted. Scanning electron microscopy and differential scanning calorimetry showed the coexistence of an aluminosilicate hydrate geopolymer gel and aluminum-modified C S H gel as the main polymerization reaction products in an amorphous geopolymeric microstructure. |
英文关键词 | Dune sand Rheological Mechanical Lightweight Geopolymer Microstructure |
类型 | Article |
语种 | 英语 |
国家 | U Arab Emirates |
收录类别 | SCI-E |
WOS记录号 | WOS:000425622900010 |
WOS关键词 | DUNE SAND ; MECHANICAL-PROPERTIES ; AMBIENT-TEMPERATURE ; STRENGTH PROPERTIES ; THERMAL-BEHAVIOR ; PART I ; CEMENT ; WORKABILITY ; HYDRATION ; MICROSTRUCTURE |
WOS类目 | Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary |
WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/211150 |
作者单位 | United Arab Emirates Univ, Dept Civil & Environm Engn, POB 15551, Al Ain, U Arab Emirates |
推荐引用方式 GB/T 7714 | Ismail, Najif,El-Hassan, Hilal. Development and Characterization of Fly Ash-Slag Blended Geopolymer Mortar and Lightweight Concrete[J],2018,30(4). |
APA | Ismail, Najif,&El-Hassan, Hilal.(2018).Development and Characterization of Fly Ash-Slag Blended Geopolymer Mortar and Lightweight Concrete.JOURNAL OF MATERIALS IN CIVIL ENGINEERING,30(4). |
MLA | Ismail, Najif,et al."Development and Characterization of Fly Ash-Slag Blended Geopolymer Mortar and Lightweight Concrete".JOURNAL OF MATERIALS IN CIVIL ENGINEERING 30.4(2018). |
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