Results 31 to 40 of about 358,721 (324)

A review: Alkali-activated cement and concrete production technologies available in the industry

Heliyon, 2023
A growing interest in alternative cements has emerged with the sole purpose of reducing the environmental footprint associated with cement production. One of the promising alternatives is to use non-carbonate materials such as alkali-activated materials.
Isabel Pol Segura, Navid Ranjbar, Anne Juul Damø, Lars Skaarup Jensen, Mariana Canut, Peter Arendt Jensen   +5 more
doaj   +1 more source

Properties of cementless mortars activated by sodium silicate. [PDF]

, 2007
yesThe present paper reports the testing of 12 alkali-activated mortars and a control ordinary portland cement (OPC) mortar. The main aim is to develop cementless binder activated by sodium silicate powder.
Ashour, Ashraf F., Lee, E-T., Song, J-K., Yang, Keun-Hyeok   +3 more
core   +1 more source

Reaction products, structure and properties of alkali-activated metakaolin cements incorporated with supplementary materials – a review

Journal of Materials Research and Technology, 2019
Incorporation of mineral blending and/or modifying additions which are single- or multi-component materials is one of the main trends in the development of both Portland clinker-based and non-clinker cements.
Nailia R. Rakhimova, Ravil Z. Rakhimov
doaj   +1 more source

Alkali-Activated Materials as Catalysts for Water Purification [PDF]

Catalysts, 2021
In this study, novel and cost-effective alkali-activated materials (AAMs) for catalytic applications were developed by using an industrial side stream, i.e., blast furnace slag (BFS). AAMs can be prepared from aluminosilicate precursors under mild conditions (room temperature using non-hazardous chemicals).
Heponiemi Anne, Pesonen Janne, Hu Tao, Lassi Ulla   +3 more
openaire   +2 more sources

Durability of alkali-activated binders: a clear advantage over Portland cement or an unproven issue? [PDF]

, 2012
The alkali activation of alumino-silicate materials is a complex chemical process evolving dissolution of raw materials, transportation or orientation and polycondensation of the reaction products.
Abdollahnejad, Zahra, Camões, Aires, Ding, Yining, Jamshidi, M., Pacheco-Torgal, F.   +4 more
core   +1 more source

Instantaneous activation energy of alkali activated materials

RILEM Technical Letters, 2019
Alkali activated materials (AAM) are generally cured at high temperatures to compensate for the low reaction rate. Higher temperature accelerates the reaction of AAM as in cement-based materials and this effect is generally predicted using Arrhenius ...
Shiju Joseph, Siva Uppalapati, Ozlem Cizer   +2 more
doaj   +1 more source

Management and valorisation of wastes through use in producing alkali-activated cement materials [PDF]

, 2016
There is a growing global interest in maximising the re-use and recycling of waste, to minimise the environmental impacts associated with waste treatment and disposal.
Abreu, Ahmad, Ahmari, Ahmari, Ahmari, Ahmari, Allahverdi, Allegrini, Ambroise, Amiralian, Amutha Rani, Antunes Boca Santa, Ariffin, Asokan, Austin, Avila-López, Ay, Badanoiu, Barata, Barata, Bare, Barrie, Bernal, Bernal, Bernal, Bernal, Bertolini, Bijen, Bouanini, Bouzón, Buchwald, Butera, Caballero, Castaldelli, Castaldelli, Cazacliu, Chen, Chen, Chen, Cheriaf, Chervonnyi, Chimenos, Chindaprasirt, Chotetanorm, Colangelo, Cordeiro, Cordeiro, Cordeiro, Cyr, Dahlbo, De Schepper, Della, Detphan, Deventer, Deventer, Diaz-Loya, Dimas, Duxson, Ecke, Fairbairn, Fazal, Fernández-Jiménez, Ferone, Ferone, Ferone, Foo, Frías, Frías, Frías, Fytili, Galbenis, Ganesan, García, García-Lodeiro, Gastaldi, Gastaldini, Geetha, Gluth, Gomes, Gräfe, Hao, Hassan, Hawa, He, He, He, Hendriks, Higashiyama, Hildebrando, Hsiau, Hu, Hu, Ingunza, Islam, Jaarsveld, Jaturapitakkul, John, Juenger, Ke, Kersch, Kikuchi, Kim, Komnitsas, Komnitsas, Kumar, Kupaei, Lam, Lancellotti, Lancellotti, Lassinantti Gualtieri, Lavat, Lee, Lee, Lemougna, Li, Li, Liu, Longhi, Longhi, Luna Galiano, Luna Galiano, Maia, Malhotra, Marafi, Margallo, Marwan, Mateo-sagasta, Mcintosh, Medina, Mehta, Mejía, Mejía, Monte, Monzó, Morales, Murray, Müller, National Bureau of Statistics of China, Nóbrega-de-Azeredo, Ogundiran, Pacewska, Pacewska, Pacheco-Torgal, Pacheco-Torgal, Pacheco-Torgal, Pacheco-Torgal, Pan, Pan, Pan, Pandey, Park, Pavlík, Payá, Payá, Pera, Pereira, Perera, Phair, Pimraksa, Pontikes, Pontikes, Prasad, Provis, Provis, Provis, Puertas, Puertas, Ranjbar, Ranjbar, Rattanasak, Redden, Reig, Reig, Reijnders, Ren, Rivera, Rodríguez, Salih, Sata, Sathonsaowaphak, Schoon, Shao, Shayan, Shi, Shi, Silva, Silvestre, Singh, Singh, Smol, Snellings, Southam, Srikanth, Stock, Tangchirapat, Tashima, Tashima, Tay, Taylor-Lange, Tennakoon, Themelis, Toledo Filho, Topçu, Topçu, Torres-Carrasco, Torres-Carrasco, Townsend, Trochez, Ulsen, US Environmental Protection Agency, Van Gerven, Van Jaarsveld, Van Riessen, Vegas, Villaquirán-Caicedo, Vossberg, Wagh, World Coal Association, Xie, Yamaguchi, Yan, Yan, Yang, Ye, Ye, Youcai, Yusuf, Yusuf, Yusuf, Zhang, Zheng, Zheng, Zuo   +232 more
core   +2 more sources

Binder Chemistry – Low-Calcium Alkali-Activated Materials [PDF]

, 2013
Early developments in the developments of low-calcium (including calcium-free) alkali-activated binders were led by the work of Davidovits in France, as noted in Chap. 2. These materials were initially envisaged as a fire-resistant replacement for organic polymeric materials, with identification of potential applications as a possible binder for ...
Provis, John L., Fernández Jiménez, Ana, KAMSEU, Elie, LEONELLI, Cristina, Palomo, Angel   +4 more
openaire   +2 more sources

Compressive strength variation of alkali activated fly ash/slag concrete with different NaOH concentrations and sodium silicate to sodium hydroxide ratios

Journal of Sustainable Construction Materials and Technologies, 2019
Waste disposal becomes a crucial issue for both the environment and the economy. One of the solutions for waste disposal is to utilize waste materials in concrete production.
Anıl Ni̇ş
doaj   +1 more source

Bioactive glass-ceramic scaffolds from novel 'inorganic gel casting' and sinter-crystallization [PDF]

, 2017
Highly porous wollastonite-diopside glass-ceramics have been successfully obtained by a new gel-casting technique. The gelation of an aqueous slurry of glass powders was not achieved according to the polymerization of an organic monomer, but as the ...
Bernardo, Enrico, Elsayed, HAMADA SAID ABDELWAHAB, Ferroni, Letizia, Gardin, Chiara, Romero, Acacio Rinc\uf3n, Zavan, Barbara   +5 more
core   +2 more sources