Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Adrian Long"'
Publikováno v:
Revista ALCONPAT, Vol 8, Iss 3 (2018)
In this paper, a review of techniques is given so that both, the challenges and opportunities for assessing transport properties of high-performance concrete, are highlighted. A knowledge of performance of structural concrete is required for design a
Externí odkaz:
https://doaj.org/article/19e2067c22f64e81bb25a18c378faad7
Autor:
G. I. B. Rankin, Adrian Long
Publikováno v:
Engineering Structures. 178:37-54
This paper presents an improved rational method for predicting the punching strength of conventional reinforced concrete slab-column specimens extending to the nominal line of contraflexure in a flat slab structure. The proposed method of analysis is
Publikováno v:
Construction and Building Materials. 195:671-681
An in situ air permeability test method that does not require assumptions for the often-difficult unidirectional flow has been developed to calculate the air permeability coefficient of the near surface concrete. The proposed method involves applying
Autor:
Zhilu Zhang, Xiaohong Zhu, Yun Bai, Sreejith Nanukuttan, Bryan Magee, Yaocheng Wang, Changhui Yang, Adrian Long, Muhammed Basheer, Kai Yang
Publikováno v:
Wang, Y, Yang, K, Long, A, Nanukuttan, S, Magee, B, Zhu, X, Zhang, Z, Yang, C & Basheer, M 2018, ' Effectiveness of preconditioning regimes for assessing water permeability of high performance concrete ', Cement and Concrete Composites, vol. 94, pp. 126-135 . https://doi.org/10.1016/j.cemconcomp.2018.08.018
Saturating high performance concrete (HPC) on site for assessing water permeability is a challenge. This paper reports a testing programme established to assess the reliability and efficiency of two field saturation approaches, viz. vacuum saturation
Autor:
Sreejith Nanukuttan, Adrian Long
Publikováno v:
Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics. 170:3-6
Arch bridges are strong, durable, aesthetically pleasing and require little maintenance but very few have been built since the early 1900s. However, this trend has changed as more than 60 FlexiArch bridges have been installed since the system was lau
Publikováno v:
Wang, J, Basheer, P A M, Nanukuttan, S V, Long, A E & Bai, Y 2016, ' Influence of service loading and the resulting micro-cracks on chloride resistance of concrete ', Construction and Building Materials, vol. 108, pp. 56-66 . https://doi.org/10.1016/j.conbuildmat.2016.01.005
Chloride-induced corrosion of steel in reinforced concrete structures is one of the main problems affecting their durability, but most previous research projects and case studies have focused on concretes without cracks or not subjected to any struct
Publikováno v:
Long, A, Gupta, A, McPolin, D & Cook, J 2018, ' Adapting the FlexiArch for widening a complex arch bridge ', Proceedings of ICE-Bridge Engineering .
The 1840's Teewell Hill arch bridge, in the suburbs of Bristol, UK, was no longer adequate for increasing local traffic levels and needed to be widened. Several widening options were considered and it was concluded that the innovative ‘FlexiArch’
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::856be19d3c9850ec8306192b79102225
https://pure.qub.ac.uk/en/publications/adapting-the-flexiarch-for-widening-a-complex-arch-bridge(41e77a99-1037-4e93-aba8-46c2ab6a1516).html
https://pure.qub.ac.uk/en/publications/adapting-the-flexiarch-for-widening-a-complex-arch-bridge(41e77a99-1037-4e93-aba8-46c2ab6a1516).html
Publikováno v:
ACI Materials Journal. 115
Determining the water permeability of concrete in structures remains a conundrum because of difficulties in removing the influences of moisture. This study describes the extended flow-net theory developed on the basis of the two-pressure-head concept
Publikováno v:
NDT & E International. 64:30-40
Although several in situ techniques, including the Autoclam Permeability System, are available to examine normal concretes (NCs) for this purpose, none are sufficiently sensitive to quantify and distinguish relative high performance concrete (HPC) pe
Publikováno v:
Proceedings of the Institution of Civil Engineers - Bridge Engineering. 167:61-73
This paper investigates the use of solid and hollow core voussoir blocks in an innovative FlexiArch bridge system. The system is formed from precast concrete voussoirs connected by a polymeric reinforcement, enabling the arch to be built and transpor