Four concrete decks with different delamination sizes were constructed and experimental tests were conducted on these concrete slabs. Traditional peak-picking (PP), frequency domain decomposition (FDD) and stochastic subspace identification (SSI) methods were applied in the modal identification from real ...
The analytic formulas were used to illustrate the process of the delamination failure, rupture of CFRP sheet and crush of concrete. 同时利用基于该理论所建立的公式解释了碳纤维布与混凝土的剥离、碳纤维布断裂以及混凝土压碎等试验现象的发生过程。 www.ceps.com.tw 10. Discussion on the lithospheric thinn...
Image pyramidNumerical simulationNDEDespite decades of efforts using thermography to detect delamination in concrete decks, challenges still exist in removing environmental noise from thermal images. The performance of conventional temperature-contrast approaches can be significantly limited by environment-...
delamination sounding tools & Field sounding assessment services Since 1993, Sounding Technology has supplied the engineering community with the tools, technology and services to conduct expert delamination sounding on concrete, stucco and many other cementicious surfaces. We developed the technology which ...
The delamination of the surface layer of concrete floors during or after the surface finishing operations (floating, troweling, and polishing) is no new phenomenon. However increased numbers of cases have been reported these last years and unlike before, the delamination fracture can often be observ...
A problem with scaling may also arise locally over aggregate particles near the surface. The weak thin layer of cover concrete over coarse aggregate particles is vulnerable to delamination, as illustrated inFig. 8.3, if ice forms from the water expelled from the freezing aggregate. ...
Delamination is a mode of failure where a material fractures into layers. A variety of materials including laminate composites and concrete can fail by delamination. Processing can create layers in materials such as steel formed by rolling and plastics a
2003b. Non linear bond- slip law for FRP-concrete interface. In FRPRCS-6; Proc.Savoia, M.; Ferracuti, B.; Mazzoti, C. - "Delamination of FRP plate/sheets used for strengthening of rc elements", ISEC-02, Second International Conference on Structural Engineering and Construction, Conference...
applied sciences Article Detectability of Delamination in Concrete Structure Using Active Infrared Thermography in Terms of Signal-to-Noise Ratio Jungwon Huh 1 , Van Ha Mac 1 , Quang Huy Tran 1 , Ki-Yeol Lee 2, Jong-In Lee 1 and Choonghyun Kang 1,* 1 Department of Civil and ...
composites have been employed increasingly in different structural applications, such as: thin films and layered structures in micro-electro-mechanical systems (MEMS); ship hulls in naval engineering; thermal coatings in aeronautical and aerospace engineering; strengthening of concrete and steel members in...