Zobrazeno 1 - 10
of 2 142
pro vyhledávání: '"Alkali activated materials"'
Autor:
Aimard Manfred Njawa Moudio, Ismailla Hamed Riyap, Jean Mermoz Siewé, Hervé Kouamo Tchakouté, Charles Péguy Nanseu-Njiki, Claus Henning Rüscher, Pengkun Hou
Publikováno v:
Discover Civil Engineering, Vol 1, Iss 1, Pp 1-17 (2024)
Abstract This study evaluates the influence of the CaO/Al2O3 molar ratio of synthetic calcium aluminate hydrates on the properties of alkali-activated materials based on metakaolin. Calcium aluminate hydrates with CaO/Al2O3 molar ratios of 0.4, 0.6,
Externí odkaz:
https://doaj.org/article/e1240f4f9c9e46588b8973035006e08b
Publikováno v:
Journal of Traffic and Transportation Engineering (English ed. Online), Vol 11, Iss 5, Pp 918-938 (2024)
Geopolymer concrete (GPC) has been developed as a sustainable alternative to traditional cement-based concrete using industrial waste materials. Thus, reducing greenhouse gas emissions in concrete production can be expected. This study employed the l
Externí odkaz:
https://doaj.org/article/f441b7ab0efc48b5b2a4b8b9958fb945
Publikováno v:
Discover Sustainability, Vol 5, Iss 1, Pp 1-12 (2024)
Abstract This paper aimed to investigate the durability of ambient-cured fly ash-phosphogypsum blended geopolymer mortar (GPM) when exposed to a water and sulfate environment at different durations. Water absorption, porosity, and sulfate resistance
Externí odkaz:
https://doaj.org/article/a9da8cfe0c3b4ad085df07674b551a70
Autor:
Roberta Occhipinti, Silvia Portale, Gabriele Lanzafame, Domingo Gimeno, Marko Kudrna Prašek, Paolo Mazzoleni, Germana Barone
Publikováno v:
Volcanica, Vol 7, Iss 2, Pp 717-731 (2024)
The 2021 Tajogaite eruption was marked by intense pyroclastic fallout that covered a substantial portion of La Palma island, with maximum thicknesses in the central-western part. This, combined with lava flows, resulted in widespread damage to public
Externí odkaz:
https://doaj.org/article/638041df6a3d412391e748d7b2973a79
Publikováno v:
Developments in the Built Environment, Vol 20, Iss , Pp 100554- (2024)
The utilization of waste rubber as aggregates shows both environmentally friendly features and high cost-efficiency in construction, but may cause poor workability such as rubber flotation and agglomeration. To address the above issues, the pelletiza
Externí odkaz:
https://doaj.org/article/8b2d13223d80477d96e28d483190e264
Autor:
Ivo de Castro Carvalho, Gabrielli Tápia de Oliveira, Ana Paula Kirchheim, Heloina Nogueira da Costa, Antônio Eduardo Bezerra Cabral
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03681- (2024)
The utilization of waste and by-products as precursors in alkali-activated materials has great importance in the reduction of environmental pollution on slopes, landfills, and highways. Properties studies of alkali-activated mixtures using red cerami
Externí odkaz:
https://doaj.org/article/c33203642a3a4c26b01c4d4e496adcfd
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03659- (2024)
This study evaluated the effects of various Mg-based admixtures, including magnesium oxide (MgO), layered double hydroxides (LDH), and calcined layered double hydroxides (CLDH), on the chloride resistance of alkali-activated fly ash-slag (AAFS) morta
Externí odkaz:
https://doaj.org/article/a464166cb0444c838ecd239ac17a765c
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03536- (2024)
Eco-friendly and cheap treatments based on the use of mildly alkaline solutions have been recently investigated to modify natural fibers, altering their surface and improving their compatibility mainly with polymer matrices. A challenge for the resea
Externí odkaz:
https://doaj.org/article/e33887a434c54eebbc98899b9f257d24
Autor:
Yang Xue, Wu Tong, Amin Muhammad Nasir, AlAteah Ali H., Qadir Muhammad Tahir, Khan Suleman Ayub, Javed Muhammad Faisal
Publikováno v:
Reviews on Advanced Materials Science, Vol 63, Iss 1, Pp id. 126-573 (2024)
Activated alkali materials (AAMs) are progressively utilized as an alternative to Portland cement concrete owing to their widespread application and reduced environmental impact. This research employed multi-expression programming (MEP) and gene expr
Externí odkaz:
https://doaj.org/article/b36b2e20167d46ef8d34e3020b916657