Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Héctor Cifuentes"'
Autor:
José D. Ríos, Carlos Leiva, Antonio Martinez de la Concha, María Pilar Ariza, Héctor Cifuentes
Publikováno v:
Crystals, Vol 14, Iss 8, p 707 (2024)
The aim of this study is twofold. First, to assess the effect of the sonication process on the optimal dispersion of GO sheets for nanostructural reinforcement of cement pastes, as there is currently no clear criterion on this effect in the literatur
Externí odkaz:
https://doaj.org/article/2dba47144ea44aa59b8da3772ba2a689
Publikováno v:
Materials, Vol 16, Iss 22, p 7167 (2023)
This research analyses how different cement mortars behave in terms of their physical and mechanical properties. Several components were necessary to make seven mixes of mortars, such as Portland cement, standard sand, and solid waste from a factory
Externí odkaz:
https://doaj.org/article/76f8ff75e17348c98c8e2fcf3bdb3abd
Publikováno v:
Revista Facultad de Ingeniería, Vol 27, Iss 47, Pp 39-49 (2018)
The cold chain is the succession of links such as pre-cooling, refrigeration, freezing, and refrigerated transport. The physical variables of the heat transfer process are temperature control, relative humidity, dew point, and cooling surface. This p
Externí odkaz:
https://doaj.org/article/1f1844a45a9f48a0a48a4ccf09e5616c
Autor:
Héctor Cifuentes, Miguel Lozano, Táňa Holušová, Fernando Medina, Stanislav Seitl, Alfonso Fernández-Canteli
Publikováno v:
International Journal of Concrete Structures and Materials, Vol 11, Iss 2, Pp 215-228 (2017)
Abstract A new approach for measuring the specific fracture energy of concrete denoted modified disk-shaped compact tension (MDCT) test is presented. The procedure is based on previous ideas regarding the use of compact tension specimens for studying
Externí odkaz:
https://doaj.org/article/a3970e075792496a9be34ccf82343a56
Publikováno v:
Materials & Design, Vol 165, Iss , Pp - (2019)
This study is concerned with the analysis of the tensile properties of an ultra-high-strength fiber-reinforced concrete manufactured with short and long steel fibers. The analysis involve using different techniques - from mechanical tests to X-ray co
Externí odkaz:
https://doaj.org/article/b5e77b67fdd14d23bf11d169897cfc99
Publikováno v:
Applied Sciences, Vol 10, Iss 16, p 5486 (2020)
In this work we follow a multiscale methodology to characterize the structural performance of post-tensioned steel fiber-reinforced concrete dry joints. At the material level, we use an experimentally validated lattice-particle model whose input para
Externí odkaz:
https://doaj.org/article/e3b1f8bd06f9486c882f1fa600b47694
Publikováno v:
Ingeniería e Investigación, Vol 31, Iss 3, Pp 6-16 (2011)
Duplex treatments have been developed to overcome the disadvantages presented by simple treatments to surfaces of different materials and have, in a combined and complementary way, the properties that each of these methods supplies individually. The
Externí odkaz:
https://doaj.org/article/1d4929da56474b54b5fc20062bba97df
Autor:
Joaquín Cabezas, Trinidad Sánchez-Rodríguez, Juan Antonio Gómez-Galán, Héctor Cifuentes, Ramón González Carvajal
Publikováno v:
Sensors, Vol 18, Iss 3, p 876 (2018)
This work presents the design, construction and testing of a new embedded sensor system for monitoring concrete curing. A specific mote has been implemented to withstand the aggressive environment without affecting the measured variables. The system
Externí odkaz:
https://doaj.org/article/72d968fcd1404d10892461dc0ac70b60
Publikováno v:
Materials, Vol 10, Iss 7, p 767 (2017)
The objective of this work is two-fold. First, we attempt to fit the experimental data on the flexural fatigue of plain and fiber-reinforced concrete with a probabilistic model (Saucedo, Yu, Medeiros, Zhang and Ruiz, Int. J. Fatigue, 2013, 48, 308–
Externí odkaz:
https://doaj.org/article/cef2c97988ad4478a6b019c03fdf36c0
Publikováno v:
Materials, Vol 10, Iss 2, p 207 (2017)
This work presents a lattice–particle model for the analysis of steel fiber-reinforced concrete (SFRC). In this approach, fibers are explicitly modeled and connected to the concrete matrix lattice via interface elements. The interface behavior was
Externí odkaz:
https://doaj.org/article/436edcc589804b679190a256d643e891