The 'Skin Effect' Assessment of Chloride Ingress into Concrete Based on the Identification of Effective and Apparent Diffusivity

Autor: Zbigniew Perkowski, Zofia Szweda

Publikováno v: Applied Sciences, Vol 12, Iss 3, p 1730 (2022)

The method of assessment of the “skin effect” for chloride ingress into concrete has been proposed, based on the inverse problem for the identification of at-surface variability of chloride diffusivity under fully saturated conditions. For this p

Externí odkaz: https://doaj.org/article/d84a958aa9754d22bf632c729e446faf

Estimation of Shear Stiffness of Interlayer Connection in Two-Layer Composite Beams Based on Analysis of Natural Frequencies

Autor: Zbigniew Perkowski, Mariusz Czabak, Karolina Gozarska

Publikováno v: Communications, Vol 15, Iss 4, Pp 18-20 (2013)

The paper shows possibilities of testing composite two-layer beams with flexible connectors (like bolts in steel-concrete beams and nails in wooden-concrete ones) offered by analysis of their natural frequencies. It enables an estimation of shear com

Externí odkaz: https://doaj.org/article/f8134ffbaee14eeeb3055f7a5e0f9b0f

Verification of Precast Concrete Girder Bridge Under Static Load

Autor: Petra Bujnakova, Jakub Kralovanec, Zbigniew Perkowski, Abdelhamid Bouchair

Publikováno v: Civil and Environmental Engineering Reports
Civil and Environmental Engineering Reports, 2022, 18 (2), pp.760-767. ⟨10.2478/cee-2022-0070⟩

Large-scale construction of transport infrastructure inevitably includes the construction of new bridges. During the design process, many assumptions and simplifications are taken into account. Therefore, the verification of the structural response o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33d56ee4c69db6100c31d753166b0139
https://hal.science/hal-04116682/document

Environmental Challenges in Civil Engineering III

Autor: Zbigniew Perkowski, Damian Beben, Zbigniew Zembaty, Maria Rossella Massimino, Miguel José Oliveira

This book gathers a selection of papers presented at the 6th International Scientific Conference “Environmental Challenges in Civil Engineering”, ECCE 2024, held on April 22–24, 2024, in Opole, Poland. Written by an international group of exper

The Use of Dijkstra’s Algorithm in Assessing the Correctness of Imaging Brittle Damage in Concrete Beams by Means of Ultrasonic Transmission Tomography

Autor: Karolina Tatara, Zbigniew Perkowski

Publikováno v: Materials, Vol 13, Iss 3, p 551 (2020)
Materials
Materials; Volume 13; Issue 3; Pages: 551

The accuracy of transmission ultrasonic tomography for the detection of brittle damage in concrete beams can be effectively supported by the graph theory and, in particular, by Dijkstra’s algorithm. It allows determining real paths of the fastest u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67e3281adbfcd06dbef8940780a7606e
https://www.mdpi.com/1996-1944/13/3/551