Results 1 to 10 of about 16,747 (191)

Self-cleaning superhydrophobic fly ash geopolymer. [PDF]

Sci Rep, 2023
AbstractBuilding materials with hydrophobic surfaces can exhibit increased service life by preventing moisture absorption or diffusion through their surfaces. For concrete used in construction, this hydrophobicity can prevent the corrosion of reinforcing steel bars.
Chindaprasirt P, Jitsangiam P, Pachana PK, Rattanasak U.   +3 more
europepmc   +4 more sources

Effect of Grinding Fineness of Fly Ash on the Properties of Geopolymer Foam [PDF]

Archives of Metallurgy and Materials, 2017
Present paper deals with the development of geopolymer foam prepared from ground F class power station fly ash. The effect of the fly ash fineness on the rheology of the geopolymer paste and the foam properties have been investigated. The raw fly ash was
Szabó R., Gombkötő I., Svéda M., Mucsi G.   +3 more
doaj   +3 more sources

STUDY OF FLY ASH GEOPOLYMER AND FLY ASH/SLAG GEOPOLYMER IN TERM OF PHYSICAL AND MECHANICAL PROPERTIES [PDF]

European Journal of Materials Science and Engineering, 2020
This article presents the mixing parameters of fly ash geopolymer based on NaOH concentration (6M - 14M), S/L ratio (1.0 - 3.5), Na2SiO3/NaOH ratio (1.0 - 3.0) and ladle furnace slag replacement (10% -40%).
Ng HUI-TENG, Heah CHENG-YONG, Mold Mustafa Al Bakri ABDULLAH, Ng YONG-SING, Ridho BAYUAJI   +4 more
doaj   +2 more sources

Study of In Situ Foamed Fly Ash Geopolymer. [PDF]

Materials (Basel), 2020
Foamed fly ash geopolymer was synthesized in this work to produce geopolymeric lightweight concrete (GLWC). Fly ash was activated by sodium silicate solution, and aluminum powder was employed as an in situ chemical foaming agent. The synthesized pastes were cured at 40 °C for 28 days, with bulk densities of resultant GLWCs ranging from 600 to 1600 kg ...
Su Z, Hou W, Sun Z, Lv W.
europepmc   +5 more sources

Ambient Cured Fly Ash Geopolymer Coatings for Concrete. [PDF]

Materials (Basel), 2019
The reinforced concrete structures that support transport, energy and urban networks in developed countries are over half a century old, and are facing widespread deterioration. Geopolymers are an affordable class of materials that have promising applications in concrete structure coating, rehabilitation and sensing, due to their high chloride ...
Biondi L, Perry M, Vlachakis C, Wu Z, Hamilton A, McAlorum J.   +5 more
europepmc   +6 more sources

Applicability of waste foundry sand stabilization by fly ash geopolymer under ambient curing conditions [PDF]

Heliyon
Recently, utilizing industrial waste in the construction industry has gained significant attention to meet sustainability demands and mitigate the adverse environmental impacts caused by the construction industry.
Ali Abdulhasan Khalaf, Katalin Kopecskó, Sarah Modhfar   +2 more
doaj   +2 more sources

Research Progress on Fly Ash Based Geopolymer

Kuangchan zonghe liyong, 2022
The preparation of geopolymer from fly ash is one way of green comprehensive utilization. In this paper, research progress was reviewed from three aspects: character of fly ash, affect factors and formation mechanism, focused on the quantitative analysis
Yimiao Nie, Miao Xia, Panpan Liu, Ling Wang, Shuxian Liu, Sen Wang, Yingchun Wang, Shuoyu Liu, Peixin Zhai   +8 more
doaj   +2 more sources

Effect of various parameters on the workability and strength properties of geopolymer concrete [PDF]

E3S Web of Conferences, 2021
In the present study, effect of various molarities of NaOH, various fly ash content and alkaline activator solution (AAS) / fly ash(FA) ratios on the workability of geopolymer concrete(GPC) are studied along with the effect of use of Na2SiO3/NaOH and ...
Sai Ketana Nutakki, Srinivasa Reddy V, Seshagiri Rao M V, Shrihari S   +3 more
doaj   +1 more source

Mechanical and durability analysis of fly ash based geopolymer with various compositions for rigid pavement applications [PDF]

, 2022
Ordinary Portland cement (OPC) is a conventional material used to construct rigid pave ment that emits large amounts of carbon dioxide (CO2 ) during its manufacturing process, which is bad for the environment. It is also claimed that OPC is susceptible
Abd Rahim, Shayfull Zamree, Abdul Kadir, Aeslina, Abdullah, Mohd Mustafa Al Bakri, Ghazali, Che Mohd Ruzaidi, Mohd Hasan, Mohd Rosli, Mohd Tahir, Muhammad Faheem, Sandu, Andrei Victor, Vizureanu, Petrica   +7 more
core   +1 more source

Comparative Analysis Between Fly Ash Geopolymer and Reactive Ultra-Fine Fly Ash Geopolymer

International Journal of Engineering and Technology Innovation, 2021
This study investigates novel geopolymers by combining Reactive Ultra-fine Fly Ash (RUFA) with 4M sodium hydroxide as an alkali activator. Comparing with general fly ash geopolymers, RUFA geopolymer pastes are characterized in terms of compressive strength, microstructure, and crystalline phases.
Wei-Ting Lin, Kae-Long Lin, Kinga Korniejenko, Lukáš Fiala   +3 more
openaire   +2 more sources