Ingenieurwissenschaften und zugeordnete Tätigkeiten
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- Concrete (2)
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Components in the Aerospace, Power and Automotive engineering sectors are frequently subjected to cyclic stresses induced by thermal fluctuations and mechanical loads. For the design of such components, reliable material property data are required which need to be acquired using well accepted and reproducible test procedures for thermo-mechanical fatigue (TMF) loading. Available materials TMF property data are limited so that there is a need for further TMF data generated by TMF testing. The TMF behaviour of materials is often desired to be simulated in models which describe the cyclic stress-strain behaviour, the fatigue life and the cyclic crack growth behaviour. There is a continuous need for the development and amendment of such models. Models can be validated by using materials in industrial applications which are subjected to TMF loading.
Welcome to the 2nd International Conference on Advances in Cement and Concrete Technology in Africa (ACCTA 2016), January 27– 29, 2016, held at White Sands Hotel, Dar es Salaam, Tanzania.
The first ACCTA conference that took place in January 2013 in Johannesburg was a result of an African-European collaborative research project. Due to the success of this conference, it was announced that a triennial international conference is necessary, with the next conference scheduled to take place once again in Johannesburg. Within the organisation of the conference, unfortunately some unforeseeable events arose, which would lead to either a delay of the conference in Johannesburg until 2018 or a change of venue. The great response from the international scientific community supported the option to maintain the originally scheduled date. With the support of the local organisation committee from the University of Dar es Salaam and the contributions from the University of the Witwatersrand and the University of Zagreb the conference was shifted to Dar es Salaam.
Despite the new boundary framework, we are extremely happy that it was possible to arrange an outstanding and excellent scientific programme. Therefore we would like to thank in particular the keynote speakers and all members of the international scientific community, as well as other delegates that supported the conference by their contributions and attendance. This shows us how significantly important the African cement and concrete market is for the entire global community.
Africa can become a spearhead for the future of construction with cement and concrete. The continent exhibits an enormous construction potential and due to the relatively short history of building with these materials, innovations can be adopted and adapted unbiased and without influence of stakeholders, traditions, and complicated networks of regulations. This is a fertile ground for the existing promising generation of engineers and decision makers for re-inventing cement and concrete in the best possible way.
There is no global optimum solution for concrete. The best solution in Africa is not the best solution in Europe or another part of the world, and the best solution in one particular African country is diverging from the best solution in another African country depending upon resources, supply chains, infrastructure, construction needs, traditions, available manpower, skills and technologies. Nevertheless, we can globally support our objectives to build future oriented and sustainable construction solutions by mutually learning from each other. In order to tackle the future challenges and build more sustainably and innovatively with concrete, we need to enhance interdisciplinary and cross-national skills and create networks between experts and decision makers globally.
ACCTA offers this kind of platform, and we are happy to announce that the conference reaches a high impact in the world. Delegates and speakers come from more than 40 countries in the world originating from all continents. Besides the technical content there will be plenary discussions on the most relevant topics of future binder technologies and standards and product safety with outstanding expert panellists.
We want to wish all delegates a successful conference and hope that this book can be a significant contribution for a future oriented and better concrete technology; in Africa and the entire world. Welcome to Dar es Salaam, Tanzania.
Welcome to the second symposium on Knowledge Exchange for Young Scientists (KEYS) in Accra, Ghana 7th – 9th June 2016. This symposium is part of a three phase series organised by BAM, and funded by VolkswagenStiftung. The KEYS symposia series offers a platform whereby young African scientists can get together with peers from Germany as well as with experienced academic engineers, industry specialists and scientists from across the globe for better implementation of research analysis in their respective fields of study. This primarily provides the opportunity to obtain further knowledge in the demand for the home-base innovation and growth of the education sector. It will also provide an opportunity to network with peers and gain relevant and objective knowledge. Therefore, the symposium offers adequate training to young scientists as well as gives an opportunity to network with key players in the cement and concrete industry, which will facilitate the fundamentals of knowledge transfer.
This second symposium focuses on solid waste management and importance of valorisation of suitable by-products for utilisation in the cement and concrete industry. Today, all over the world we can no longer draw on abundant resources, and more frequently, we need to develop innovative concepts for better and more sustainable construction. This change process needs international and interdisciplinary approaches. Hence, the symposium is seen as a spark for the generation of ideas and visions, how concrete construction can become more globally sustainable based on locally tailored concepts. The symposium includes keynote lectures from 9 international keynote speakers and technical papers from 22 young scientists, who were selected out of a high number of applicants based on the excellence of their scientific writing. The presentations of all participants as well as keynote lectures are represented in these proceedings.
We would like to thank all participants for their valuable contribution to the symposium. We are blessed to receive tremendous input from the distinguished keynote speakers and we thank them for their attendance. Last but not least, we would like to acknowledge the funding body, VolkswagenStiftung, for their support. We hope you enjoy the symposium and find your engagement valuable with the entire team in sustaining your professional development in the global world of cement and concrete.