Deadline: June 15, 2012
Degradation of concrete structures due to ASR is a complex mechanism, i.e., it is caused by a reaction between the hydroxyl ions in the alkaline cement pore solution in the concrete and reactive forms of silica in the aggregate. This Ph.D project is done in cooperation with Delft university. The project is part of the STW Program Perspectief IS2C (Integral Solutions for Sustainable Construction: www.is2c.nl
Degradation of concrete structures due to ASR is a complex mechanism, i.e., it is caused by a reaction between the hydroxyl ions in the alkaline cement pore solution in the concrete and reactive forms of silica in the aggregate (e.g; chert, quartzite, opal, strained quartz crystals). The gel which is produced in this reaction, increases in volume by taking up water and so exerts an expansive pressure, resulting in failure of the concrete. The underlying mechanisms are poorly understood and presently there is no good model for the development of damage. Lithium ions are known to positively affect the degradation process but the mechanism is not understood. This project aims to largely improve service life assessment and preservation of concrete structures with regard to ASR by elucidating the degradation process In this project we want to measure and model the effect of Li on ASR. This work should be a combination of experimental work and modeling.
This Ph.D project is done in cooperation with Delft university. The project is part of the STW Program Perspectief IS2C (Integral Solutions for Sustainable Construction: www.is2c.nl). This IS2C program is aiming to enforce new innovations in the current state of the art of service-life assessment and to set a new standard for sustainable construction and is a cooperation between universities and companies.
The PhD candidates should:
* hold a Master’s degree in physics, chemistry or civil engineering
* have affinity with materials science, transport in porous media and/or durability of concrete and should have hands-on experience with experimental work
* have good communication skills in English, both oral and written.
For more info on group see: www.phys.tue.nl/nfcmr
The appointment is for four years. You will be an employee of the university with a competitive salary as well as excellent secondary benefits (holiday allowance, etc.). The research in this project must be concluded with the attainment of a PhD degree. A salary is offered starting at Euro 2042.- per month (gross) in the first year and increasing up to Euro 2612.- per month (gross) in the last year. Moreover 8% bonus share (holiday supplement) is provided annually, as well as a 8.3% end of year allowance. Assistance for finding accommodation can be given. TU/e offers you also the opportunity for personal development by developing your social and communication skills. We do this by offering every PhD student a series of courses that are part of the Proof program an excellent addition to your scientific education (Proof program).
* Please include contact information, a CV, copies of transcripts and/or grade sheets, the name and address of two references.
* Candidates are urged to apply as soon as possible, as selection will start immediately.
* Please use the apply now button on the TU/e website to send us your application.
More information on employment conditions can be found here: http://w3.tue.nl/en/services/dpo/.