UH Research Archive: Recent submissions

Now showing items 21-40 of 21994

    • Durability of similar self-compacting concrete batches produced in two different EU laboratories 

      Sfikas, Ioannis P.; Kanellopoulos, Antonis; Trezos, Konstantinos G.; Petrou, Michael F. (2013)
      The present study intends to evaluate the sensitivity of self-compacting concrete (SCC) mixtures, cast in two different laboratories of the European Union, with a focus on rheological parameters, mechanical characteristics ...

    • Prescriptive durability specifications 

      Torrent, R.; D’Andréa, R.; Gonçalves, A.; Jacobs, F.; Imamoto, K.; Kanellopoulos, A.; Khrapko, M.; Monteiro, A. V.; Nanukuttan, S. V. (2016)

    • Development of a new Ultra High Performance Fibre Reinforced Cementitious Composite (UHPFRCC) for impact and blast protection of structures 

      Nicolaides, Demetris; Kanellopoulos, Antonis; Petrou, Michael A; Savva, Pericles; Mina, Anna (2015-07-30)
      Ultra High Performance Fibre Reinforced Cementitious Composites (UHPFRCCs) represent a class of cement composites which have superior characteristics in terms of material properties. Their mechanical and fracture behaviour ...

    • Dauerhaftigkeitsindikatoren für SVB entwicklung einer leistungsorientierten bemessung der dauerhaftigkeit von SVB 

      Kanellopoulos, Antonios; Ioannou, Ioannis; Petrou, Michael F. (2010)
      The fundamental principle behind the development of SCC has been the nanoscale tailoring of cementitious matrices. Although self-compacting concrete (SCC) is currently used in many countries, there is a fundamental lack ...

    • By-product materials in the production of next generation SCC 

      Kanellopoulos, A. D.; Mathaiou, M.; Petrou, Michael F.; Ioannou, Ioannis; Neophytou, M. (CRC Press/Balkema, 2008)
      Self-Compacting Concrete (SCC) is an advanced type of concrete that can flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. In hardened ...

    • Towards more sustainable and environmentally-friendly concretes : The use of silica fume 

      Kanellopoulos, A.; Ioannou, Ioannis; Petrou, Michael F. (WITPress, 2009)
      Concrete is the most widely used construction material. At the same time, however, the concrete industry is a major CO2 emitter thus contributing towards global warming. While enhanced efficiency in the production of ...

    • Self-consolidating concrete and its bond to reinforcement 

      Kanellopoulos, Antonios; Petrou, Michael F.; Ioannou, Ioannis (Precast Prestressed Concrete Institute, 2010)
      Research has shown that high slump concrete mixtures can exhibit bond problems especially at the top-cast bars due to blocking of bleed water underneath the reinforcement. As far as self-consolidating concrete is concerned ...

    • Development of uhpfrcc with the use of materials a vailable in Cyprus 

      Nicolaides, Demetris; Kanellopoulos, Antonis; Michael, Antonis; Christou, Petros (Czech Concrete Society, 2011)
      The aim of the specific study is to present the results of an extended work on the development of an UHPFRCC with the use of materials available in Cyprus. The fundamental idea for the development of this high performance ...

    • Green concrete - Recycling construction waste 

      Nicolaides, Demetris; Kanellopoulos, Antonios; Petrou, Michael A (Czech Concrete Society, 2011)
      Within the European Union, the construction and demolition wastes come to at least 180 million tons per year. Roughly 75% of the waste is disposed to landfill, despite its major recycling potential. The bulk constituents ...

    • Reproducibility of self-compacting concrete batches between two different EU laboratories 

      Sfikas, Ioannis P.; Kanellopoulos, Antonis; Trezos, Konstantinos G.; Petrou, Michael F. (2012)
      Self Compacting Concrete (SCC) offers a wide variety of advantages during casting. Considering the worldwide uniformity of guidelines concerning the composition and casting instructions for the production of fresh SCC, ...

    • Static response of UHPFRCC slab specimens 

      Nicolaides, Demetris; Savva, Pericles; Kanellopoulos, Antonios; Petrou, Michael F. (2012)
      The aim of this study is to present the results of an extended work on the development of an Ultra High Performance Fibre Reinforced Cementitious Composite (UHPFRC) and the experimental determination of the mechanical ...

    • Static response and modelling of impact resistance of UHPFRCC slab specimens 

      Nicolaides, Demetris; Lampropoulos, Andreas; Kanellopoulos, Antonios; Savva, Pericles; Mina, Anna; Petrou, Michael F. (lsraeli Association of Construction and lnfrastructure Engineers (IACIE) and Faculty of Civil and Environmental Engineering, Technion - lsrael lnstitute of Technology, 2013)
      The demand for improved properties of the construction materials increase with time and the related design and construction codes are adapted in an analogous manner. UHPFRCCs represent a class of cement composites which ...

    • Durability restoration of cementitious composites via micro encapsulated mineral repair agents 

      Litina, C.; Kanellopoulos, A.; Al-Tabbaa, A. (CRC Press/Balkema, 2016)
      This research proposes and evaluates an embedded self-sustained restoration system based on the trigger-release of microencapsulated repair agents within the concrete matrix. Micron-sized polymeric capsules carrying a ...

    • Aerodynamic effects of surface deformities on aerofoils for low-speed stratospheric flight 

      Kimmons, Jeremy; Thomas, Peter; Colonia, Simone (2022-05-11)
      High-altitude pseudo-satellites are an expanding focal area of the aerospace industry which require new technologies and manufacturing processes to reduce weight and increase efficiency with the aim of increasing endurance. ...

    • A memristive non-smooth dynamical system with coexistence of bimodule periodic oscillation 

      Yang, Yang; Ma, Minglin; Li, Zhijun; Wang, Mengjiao; Sun, Yichuang; Chen, Liang (2022-08-01)
      In order to explore the bursting oscillations and the formation mechanism of memristive non-smooth systems, a third-order memristor model and an external periodic excitation are introduced into a non-smooth dynamical system, ...

    • BILETA Response to Human Rights Act Reform: A Modern Bill of Rights 

      Romero Moreno, Felipe; Harbinja, Edina; Brown , Abbe; Oswald , Marion (BILETA, 2022-03-08)
      The government is committed to updating the Human Rights Act 1998. This consultation seeks views on the government’s proposals to revise the Human Rights Act and replace it with a Bill of Rights, in order to restore a ...

    • BILETA Response to UK Government Consultation: Data a new direction 

      Romero Moreno, Felipe; Harbinja, Edina; Pearce , Henry; Mccullagh, Karen; Sutter, Gavin; Basu, Subhajit; Lynskey, Orla; Diker Vanberg, Aysem (BILETA, 2021-09-10)
      This consultation presents proposals that build on the key elements of the current UK General Data Protection Regulation (UK GDPR), such as its data processing principles, its data rights for citizens, and its mechanisms ...

    • Are undergraduate students studying smart? Insights into study strategies and habits across a programme of study 

      Fergus, Suzanne (2022-04-08)
      The approach that students take in their studies at university is critical not only for their academic success but is equally important in life-long learning for their career and professional development. Heutagogy is the ...

    • A W-Band SPDT Switch with 15 dBm P1dB in 55-nm Bulk CMOS 

      Chen, Lisheng; Chen, Lang; Ge, Zeyu; Sun, Yichuang; Hamilton, Tara; Zhu, Xi (2022-03-25)
      Power-handling capability of bulk CMOS-based single-pole double-throw switch operating in millimetre-wave and sub-THz region is significantly limited by the reduced threshold voltage of deeply scaled transistors. A unique ...

    • A Multi-Value 3D Crossbar Array Nonvolatile Memory Based on Pure Memristors 

      Sun, Jingru; Kang , Kexin; Sun, Yichuang; Hong , Qinghui; Wang, Chunhua (2022-05-06)
      How to improve the storage density and solve the sneak path current problem has become the key to the design of nonvolatile memristive memory. In this paper, a high storage density and high reading/writing speed 3D crossbar ...