Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Thomas Kränkel"'
Publikováno v:
Applied Mechanics, Vol 3, Iss 4, Pp 1288-1298 (2022)
Damage induced by repetitive freezing and thawing processes is one of the critical factors that affect concrete durability in cold climates. This deterioration process manifests as surface scaling and internal damage. The damage processes are governe
Externí odkaz:
https://doaj.org/article/25afcae33697452b827f1888f8877073
Publikováno v:
CivilEng, Vol 3, Iss 4, Pp 1039-1052 (2022)
With steadily rising CO2 concentrations in the ambient air and fast-changing concrete compositions with reduced clinker contents, the availability of reliable and accelerated concrete carbonation tests is of crucial importance to design durable struc
Externí odkaz:
https://doaj.org/article/8a33661e8f564e049097d5815529bae1
Publikováno v:
Materials, Vol 17, Iss 2, p 532 (2024)
Understanding the transient properties of cementitious pastes is crucial for construction materials engineering. Computational modeling, particularly through Computational Fluid Dynamics (CFD), offers a promising avenue to enhance our understanding o
Externí odkaz:
https://doaj.org/article/a9e937b21973499283ecd9e9a54b2bb5
Autor:
Thomas Kränkel, Daniel Weger, Karsten Beckhaus, Fabian Geppert, Christoph Gehlen, Jithender J. Timothy
Publikováno v:
Applied Mechanics, Vol 3, Iss 2, Pp 481-495 (2022)
In this paper, the flow of concrete in a reinforced bored pile is analysed using computational simulations. In order to reduce the computational time, a porous medium that equally mimics the presence of the reinforcement is used. Experimental measure
Externí odkaz:
https://doaj.org/article/80c50a5e61354af1a4902d5a3c86144a
Autor:
Alexander Haynack, Sekandar Zadran, Jithender J. Timothy, Serena Gambarelli, Thomas Kränkel, Charlotte Thiel, Joško Ožbolt, Christoph Gehlen
Publikováno v:
Mathematics, Vol 11, Iss 17, p 3672 (2023)
The expected lifespan of cement-based materials, particularly concrete, is at least 50 years. Changes in the pore structure of the material need to be considered due to external influences and associated transport processes. The expansion behaviour o
Externí odkaz:
https://doaj.org/article/596c2bce16464ba08d3432515ed0a93f
Publikováno v:
Materials, Vol 16, Iss 12, p 4306 (2023)
Chloride ingress and carbonation pose a significant risk of steel rebar corrosion in concrete structures. Various models exist to simulate the initiation phase of rebar corrosion, addressing both carbonation and chloride ingress mechanisms separately
Externí odkaz:
https://doaj.org/article/efd0a1bcd7ee4a0eb1ba9929dd92065d
Publikováno v:
Materials, Vol 14, Iss 2, p 389 (2021)
For the selective paste intrusion (SPI) method, thin layers of aggregate are locally bound by cement paste where the structure shall arise. After completion of the printing process, the structure is excavated from the particle-bed and the unbound par
Externí odkaz:
https://doaj.org/article/20e46530c13f41838653c2ab88d4c72b
Publikováno v:
Materials, Vol 13, Iss 21, p 4778 (2020)
Lightweight mortar extrusion enables the production of monolithic exterior wall components with improved thermal insulation by installing air chambers and reduced material demand compared to conventional construction techniques. However, without rein
Externí odkaz:
https://doaj.org/article/8bd11b596df94726ab461a2455583084
Publikováno v:
Materials, Vol 13, Iss 19, p 4319 (2020)
Supplementary cementitious materials (SCM) can reduce the total amount of Portland cement clinker in concrete production. Rice husk ashes (RHA) can be converted from an agricultural by-product to a high-performance concrete constituent due to a high
Externí odkaz:
https://doaj.org/article/453b4442bcc448d09a8b6b8308bf967d
Publikováno v:
Materials, Vol 13, Iss 12, p 2769 (2020)
Two static yield stress models, one known as YODEL and the newly proposed BreakPro, based on inter-particle bond breaking probability, were employed to comparatively simulate the yield stress of cement suspensions, induced by oscillatory rheological
Externí odkaz:
https://doaj.org/article/10cb2f107e234a7693e9bb85371d782c