Results 11 to 20 of about 3,044 (184)

Thermal and Mechanical Properties of Geopolymers Exposed to High Temperature: A Literature Review

Advances in Civil Engineering, 2020
Geopolymers are prepared by alkali solution-activated natural minerals or industrial waste materials, which have been widely used as new sustainable building and construction materials for their excellent thermal and mechanical properties.
Rui He, Nan Dai, Zhenjun Wang
doaj   +1 more source

Applying X-ray Microtomography to Study Microbial-Induced Self-Healing of Geopolymers

Chemical Engineering Transactions, 2021
Geopolymers are one of the emerging sustainable materials for the building and construction industry. They are inorganic polymers produced from aluminosilicate waste materials such as coal fly ash and have been shown to have a lower carbon footprint as ...
Jadin Zam S. Doctolero, Arnel B. Beltran, Gian Paolo O. Bernardo, Michael Angelo B. Promentilla   +3 more
doaj   +1 more source

Formation of one-part-mixing geopolymers and geopolymer ceramics from geopolymer powder [PDF]

Construction and Building Materials, 2017
Abstract Geopolymer powder prepared through pre-curing and pulverization showed great potential to produce one-part-mixing geopolymers as well as high flexural strength geopolymer ceramics. The one-part-mixing geopolymers were prepared by mixing geopolymer powder with water while the geopolymer ceramics were prepared by powder metallurgy and ...
Yun-Ming Liew, Cheng-Yong Heah, Long-yuan Li, Nur Ain Jaya, Mohd Mustafa Al Bakri Abdullah, Soo Jin Tan, Kamarudin Hussin   +6 more
openaire   +1 more source

Silico-Aluminophosphate and Alkali-Aluminosilicate Geopolymers: A Comparative Review

Frontiers in Materials, 2019
Chemically activated materials (often termed as geopolymer) have received attracting attentions in civil, material and environmental research fields as a toolkit alternative to traditional Portland cement in specific applications.
Yan-Shuai Wang, Yazan Alrefaei, Jian-Guo Dai   +2 more
doaj   +1 more source

Performance of laterite-based geopolymers reinforced with sugarcane bagasse fibers

Case Studies in Construction Materials, 2021
In this study, sugarcane bagasse fibres (SBF) were used as a sustainable alternative to reinforce laterite-based geopolymers. As geopolymers can be deemed an eco-friendly construction material, the sustainability of geopolymers can be further improved ...
Rachel Nkwaju Yanou, Rodrigue Cyriaque KAZE, Adeyemi Adesina, Juvenal Giogetti Deutou Nemaleu, Séverin Bidias Keumeka Jiofack, Jean Noël Yankwa Djobo   +5 more
doaj   +1 more source

LADLE FURNACE SLAG REPLACEMENT ON THE FLEXURAL STRENGTH OF THIN FLY ASH GEOPOLYMER [PDF]

European Journal of Materials Science and Engineering, 2020
This article reports the investigation on the effect of ladle furnace slag replacement on the flexural strength of thin fly ash-based geopolymer. The thin fly ash/slag geopolymers were prepared with the replacement of various percentages of ladle furnace
Ng YONG-SING, Liew YUN-MING, Mohd Mustafa Al Bakri ABDULLAH, Ng HUI-TENG, Ridho BAYUAJI   +4 more
doaj   +1 more source

Study on Structure and Properties of Kaolin Composites- based Geopolymers

Chemical Engineering Transactions, 2018
In order to study the pore structure and corrosion resistance of kaolin composite-based geopolymers, in this paper, kaolin composite-based geopolymers were prepared by replacing fly ash with 15%, 25%, 35%, 50%, and 60% kaolin.
Jie Wen, Ying Zhou, Xuchu Ye
doaj   +1 more source

Synthesized Geopolymers Adsorb Bacterial Proteins, Toxins, and Cells

Frontiers in Bioengineering and Biotechnology, 2020
Pore-forming and hemolytic toxins are bacterial cytotoxic proteins required for virulence in many pathogens, including staphylococci and streptococci, and are notably associated with clinical manifestations of disease.
John Popovich, Shaojiang Chen, Natalie Iannuzo, Natalie Iannuzo, Collin Ganser, Collin Ganser, Dong-Kyun Seo, Dong-Kyun Seo, Shelley E. Haydel, Shelley E. Haydel, Shelley E. Haydel   +10 more
doaj   +1 more source

Synthesis of clay geopolymers using olive pomace fly ash as an alternative activator. Influence of the additional commercial alkaline activator used

Journal of Materials Research and Technology, 2021
In this research, the use of olive pomace fly ash (OPFA) as an alkaline source for the activation of calcined clays (CC) from Bailén (Jaén, Spain) was studied. The optimal composition was obtained for 70 wt % CC and 30 wt % OPFA. The physical, mechanical
M.A. Gómez-Casero, F.J. Moral-Moral, L. Pérez-Villarejo, P.J. Sánchez-Soto, D. Eliche-Quesada   +4 more
doaj   +1 more source

Influence of Size Reduction of Fly Ash Particles by Grinding on the Chemical Properties of Geopolymers

Applied Sciences, 2018
Chemical properties of geopolymers were evaluated from the reduction of fly ash particle size by grinding. X-ray diffraction determined that at early curing ages new crystalline phases appear in the matrix of the geopolymer and they remain for 28 days ...
Carlos Antonio Rosas-Casarez, Susana Paola Arredondo-Rea, Adriana Cruz-Enríquez, Ramón Corral-Higuera, Manuel de Jesús Pellegrini-Cervantes, José Manuel Gómez-Soberón, Teresita de Jesús Medina-Serna   +6 more
doaj   +1 more source