Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Zoltán Gyurkó"'
Publikováno v:
Solids, Vol 4, Iss 1, Pp 71-86 (2023)
This paper presents the study of a two-hundred-year-old, demolded solid clay brick using the rebound hammer test for the estimation of the compressive strength. During the test, the location and face type influence on the rebound values are monitored
Externí odkaz:
https://doaj.org/article/3ca091337fbd4ee09793c94fd5938409
Publikováno v:
CivilEng, Vol 4, Iss 1, Pp 68-82 (2023)
The present research deals with the cyclic and standard pull-out resistance of deformed steel bars embedded in lightweight and normal concrete. This paper is a continuation of a previous paper, where the experimental results are detailed. In the pres
Externí odkaz:
https://doaj.org/article/e62356d27c6b42ee887add6ccbc06941
Publikováno v:
Solids, Vol 3, Iss 3, Pp 397-415 (2022)
The topic of present research is the experimental investigation of pull-out resistance of B500B-type ribbed reinforcing steel bars embedded in lightweight aggregate concrete (LWAC) under unidirectional cyclic loading. Only a limited amount of standar
Externí odkaz:
https://doaj.org/article/93f398dcddc04f9fb60901c617a672ed
Autor:
Zoltán Gyurkó, Rita Nemes
Publikováno v:
Solids, Vol 2, Iss 4, Pp 331-340 (2021)
The present paper deals with the hardness of cement mortars prepared with recycled materials that are potential supplementary cementitious materials (SCM). Two potential SCMs (aerated concrete powder (ACP) and concrete powder) were investigated and c
Externí odkaz:
https://doaj.org/article/cbdef10b019c4e67a789c6acf135ead9
Autor:
Zoltán Gyurkó, Rita Nemes
Publikováno v:
Proceedings, Vol 2, Iss 8, p 555 (2018)
Discrete Element modelling of concrete requires the precise calibration of model parameters that is a long lasting and computationally expensive task in case of complex models. Present study introduces a method for estimating a model parameter (norma
Externí odkaz:
https://doaj.org/article/fe15b557d85d4db8abc5ba0700b41746
Autor:
Zoltán Gyurkó, Rita Nemes
Publikováno v:
Pollack Periodica. 17:36-42
Present paper focuses on the modeling of size effect on the compressive strength of normal strength concrete with the application of discrete element method, considering specimen of different concrete mixes and shapes. An equation was derived to esti
Publikováno v:
Journal of Cleaner Production. 230:430-444
In the next decades many buildings and structures, constructed from autoclaved aerated concrete (AAC) will reach their end of lifetime, therefore solutions should be developed to recycle the resulting waste material. AAC blocks cannot be reused in th
Autor:
Zoltán Gyurkó, Rita Nemes
Publikováno v:
Engineering Failure Analysis. 101:464-472
It is a challenging task to take into account the type and form of aggregate in the numerical modelling of concrete. Discrete Element Method (DEM) offers the possibility to consider these properties via its model parameters. However, to get a usable
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 138:947-961
Traditional supplementary cementitious materials (SCMs), like metakaolin or microsilica, highly improve various properties of concrete, making it more resistant against the effects of the environment. However, the cost of concrete is highly influence
Autor:
Zoltán Gyurkó, Rita Nemes
Publikováno v:
Periodica Polytechnica Civil Engineering.
Present study deals with the effect of size and shape on the compressive strength of concrete. Mixes of five different strengths were designed, all between C20/25 and C50/60 strength class (normal strength concretes). Different size specimens were ca