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GFRPs in Concrete: Innovations Beyond FRP Bar Reinforcement

  • Full or part time
  • Application Deadline
    Monday, August 31, 2020
  • Competition Funded PhD Project (European/UK Students Only)
    Competition Funded PhD Project (European/UK Students Only)

Project Description

Supervisor: Mithila Achintha Paththini Marakkala (Infrastructure)

Project description

Owing to the high strength properties and the excellent in-service and physical characteristics of Fibre Reinforced Polymer (FRP) materials have potential application as reinforcement in concrete structures. When FRPs used as internal reinforcement in concrete, mostly the Carbon Fibre Reinforced Polymer (CFRP) are used since the long-term performance of Glass Fibre Reinforced Polymer (GRFP) under some environment conditions, such as exposure to high alkalinity, seawater, or deicing salts, remains unknown. Since CFRPs are more expensive than GFRP, the currently used reinforcement systems in the form of FRP bars are not structurally and economically feasible. This project proposes to make use of strength/strain capacities, and the geometric flexibilities of FRP before curing with resin to develop innovative, structurally efficient combined flexural and shear reinforcement systems in structurally optimal, concrete structures. Unlike the existing FRP internal reinforcement systems in concrete, which are largely made from unidirectional FRPs and are prone to brittle FRP/bond failures, we will use multi-directional FRP to form 3D geometries of reinforcement. The proposed research will encompass a combined experimental, analytical and numerical investigation in order to provide the knowledge required to design efficient GFRP reinforcements in structurally efficient, low embodied energy concrete structures.

Key-skills: Computational modelling, laboratory experiments, Finite Element Method

Entry Requirements
A very good undergraduate degree (at least a UK 2:1 honours degree, or its international equivalent).

Closing date: applications should be received no later than 31 August 2020 for standard admissions, but later applications may be considered depending on the funds remaining in place.

Funding: full tuition fees for EU/UK students plus for UK students, an enhanced stipend of £15,009 tax-free per annum for up to 3.5 years.

How To Apply

Applications should be made online here selecting “PhD Eng & Env (Full time)” as the programme. Please enter Mithila Achintha under the proposed supervisor.

Applications should include:
Research Proposal
Curriculum Vitae
Two reference letters
Degree Transcripts to date
Apply online:

For further information please contact:

How good is research at University of Southampton in General Engineering?

FTE Category A staff submitted: 192.23

Research output data provided by the Research Excellence Framework (REF)

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