Zobrazeno 1 - 10
of 911
pro vyhledávání: '"alkali-activated cement"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024)
Abstract This research aims to produce green cement, as an alternative to traditional cement, with outstanding performance. Five alkali-activated cement pastes were fabricated based on NaOH-activation of slag (GGBFS), bypass (B), and/or silica fume (
Externí odkaz:
https://doaj.org/article/ffcf213e458341808b9db2dc338c6f5c
Autor:
Andreza Frare, Caroline Angulski da Luz, Marcelo Henrique Farias de Medeiros, José Ilo Pereira Filho
Publikováno v:
Revista IBRACON de Estruturas e Materiais, Vol 17, Iss 3 (2024)
Abstract This study investigates alkali-activated cements (AAC), comprising blast furnace slag (BFS) along with industrial by-products like rice husk ash (RHA) and metakaolin (MK), activated by sodium hydroxide (NaOH). The aim is to assess the impact
Externí odkaz:
https://doaj.org/article/9b40d5d13d7b4f5b80ee098185cd8c59
Publikováno v:
Journal of Structural Fire Engineering, 2023, Vol. 15, Issue 2, pp. 277-297.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/JSFE-01-2023-0007
Autor:
Diego Alejandro Gutiérrez-Orrego, Maryory Astrid Gómez-Botero, Edwin Fabián García-Aristizábal
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03532- (2024)
The use of OPC as a construction material is currently being reconsidered owing to the generation of greenhouse gases during production. Geopolymers or alkali-activated cement (AAC) have been proposed as partial replacements because of their excellen
Externí odkaz:
https://doaj.org/article/35cffe37f7a741a29fe15532960b5900
Microcrack and Porosity Development in Sealed Cement Mortars Measured with Micro-Computed Tomography
Publikováno v:
Materials, Vol 17, Iss 13, p 3239 (2024)
For the first time, this paper explores the role of hydration kinetics on microcrack development in cement mortars using the μ-CT technique with a resolution of 2.2 µm. Three binders were tested: fine-grained ordinary Portland cement (OPC) with Bla
Externí odkaz:
https://doaj.org/article/e5f0e21ea1e942aa9da5f6dd31bab257
Autor:
Angelica Cardoza, Henry A. Colorado
Publikováno v:
Open Ceramics, Vol 16, Iss , Pp 100438- (2023)
This study examines the mechanical and materials science properties of a novel Alkali-activated cement (AAC) cured at room temperature and using construction and demolition waste (CDW), which was obtained from brick and concrete waste from a landfill
Externí odkaz:
https://doaj.org/article/bf94e01927de44d6866ad6bea9570398
Publikováno v:
Buildings, Vol 14, Iss 3, p 701 (2024)
Ultra-high-performance geopolymer concrete (UHPGC) emerges as a sustainable and cost-effective alternative to Portland cement-based UHPC, offering similar mechanical properties while significantly reducing carbon footprint and energy consumption. Res
Externí odkaz:
https://doaj.org/article/385ccf01f51b4b9ead82a30fe229dd05
Publikováno v:
Cement, Vol 12, Iss , Pp 100067- (2023)
This research investigates the chemical reactivity of waterglass, a sodium silicate (Na2O·nSiO2·yH2O). This research establishes a framework for thermodynamic modeling of waterglass systems that contain calcium hydroxide and potassium hydroxide. Co
Externí odkaz:
https://doaj.org/article/0d19bffe332c4a6e9b767477c2ed2ac1