Outputs (40)

The effect of metakaolin and hybrid polymers on the microstructure of concrete (2021)
Journal Article
concrete. Periodicals of engineering and natural sciences, 9(1), 162-173

It has been established that metakaolin (MK) can be applied as a supplementary cementitious material and
that some polymers can enhance substantial properties of concrete. Previous studies showed that, when used
in combination, MK and polymers can... Read More about The effect of metakaolin and hybrid polymers on the microstructure of concrete.

Experimental investigation of the residual behaviour of damaged masonry arch structures (2020)
Journal Article

New masonry arch bridges are rarely constructed as part of modern transport networks, however they continue to remain an integral part of modern civil infrastructure due to their overall resilience. This resilience has led to extremely long service l... Read More about Experimental investigation of the residual behaviour of damaged masonry arch structures.

Analytical modelling of bond-slip failure between epoxy bonded FRP and concrete substrate (2020)
Journal Article
Augusthus Nelson, L., Al-Allaf, M., & Weekes, L. (2020). Analytical modelling of bond-slip failure between epoxy bonded FRP and concrete substrate. Composite Structures, 251, 112956. https://doi.org/10.1016/j.compstruct.2020.112596

In this paper, a set of explicit theoretical derivations from a generalised
bond-slip model for an epoxy bonded fibre reinforced polymer (FRP) sheet
to concrete are presented. The derivations address the maximum bond resistance, load-slip response,... Read More about Analytical modelling of bond-slip failure between epoxy bonded FRP and concrete substrate.

Validation of a finite element modelling approach on soil-foundation-structure interaction of a multi-storey wall-frame structure under dynamic loadings (2020)
Journal Article

Validated numerical approaches are very important in dynamic studies of soil-structure interaction. Experimental outputs of physical models are required to validate the numerical approaches. Testing and analysis of an experimental scaled model is eco... Read More about Validation of a finite element modelling approach on soil-foundation-structure interaction of a multi-storey wall-frame structure under dynamic loadings.

Modeling the behavior of radially pinned brick triplets (2019)
Presentation / Conference
Haynes, J., Naggasa, A., Augusthus-Nelson, L., El-basir, F., & Alsaleh, A. (2019, October). Modeling the behavior of radially pinned brick triplets. Presented at 9th International Conference on Arch Bridges, Porto, Portugal

The continued use of many UK highway and railway masonry arch bridges is dependent upon maintaining robustness as the materials deteriorate over time. A common failure in multi-ring brickwork arches subject to fatigue, is ring separation.
This pape... Read More about Modeling the behavior of radially pinned brick triplets.

Sustainable high-performance concrete using metakaolin additive and polymer admixture : mechanical properties, durability and microstructure (2019)
Presentation / Conference Contribution

In recent years, there has been a growing interest in the use of supplementary cementitious materials and polymers to produce high-performance concrete. This paper shows the results of a study on the effect of metakaolin and polymer admixture on mech... Read More about Sustainable high-performance concrete using metakaolin additive and polymer admixture : mechanical properties, durability and microstructure.

Modelling the electrical resistivity of concrete with varied water and chloride contents (2019)
Journal Article

The electrical resistivity of concrete is an important property in the assessment of reinforcement corrosion in concrete and an essential parameter in the design and operation of cathodic protection for reinforced-concrete (RC) structures. Water and... Read More about Modelling the electrical resistivity of concrete with varied water and chloride contents.

An experimental study of cathodic protection for chloride contaminated reinforced concrete (2018)
Journal Article

Cathodic protection (CP) is being increasingly used on reinforced concrete structures to protect steel reinforcing bars from corrosion in aggressive conditions. Due to the complexity of environmental conditions, the design specifications in national... Read More about An experimental study of cathodic protection for chloride contaminated reinforced concrete.

An experimental study of concrete resistivity and the effects of electrode configuration and current frequency on measurement (2018)
Presentation / Conference
Oleiwi, H., Wang, Y., Xiang, N., Augusthus Nelson, L., Chen, X., & Shabalin, I. (2018, July). An experimental study of concrete resistivity and the effects of electrode configuration and current frequency on measurement. Presented at Sixth International Conference on Durability of Concrete Structures, University of Leeds, UK

Electrical resistivity, a measurable parameter of the state of concrete, plays an important role in the assessment of reinforced concrete structures. An experimental study using two-electrode method has been conducted to evaluate the resistivity of P... Read More about An experimental study of concrete resistivity and the effects of electrode configuration and current frequency on measurement.

Use of finite element analysis to investigate the structural behaviour of masonry arch bridges subject to foundation settlement (2018)
Presentation / Conference Contribution

This paper investigates the effect of foundation settling on masonry arch bridge structural behaviour using Finite Element Analysis (FEA). Masonry arch bridges form a
large proportion of existing European infrastructure such as rail and road bridges... Read More about Use of finite element analysis to investigate the structural behaviour of masonry arch bridges subject to foundation settlement.