Description: Das Projekt "Production of activated clays for low-cost building materials in developing countries" wird vom Umweltbundesamt gefördert und von Ecole Polytechnique Federale de Lausanne (EPF), Institut d'Amenagement des Terres et des Eaux (IATE) durchgeführt. Building Materials are a basic need, which is often difficult to meet in developing countries. Concrete is the building material best suited to meet these demands, although cement, the central ingredient is often disproportionately expensive in developing counties. The most promising option to lower costs (and environmental impact) is to blend conventional Portland cement with pozzolanic materials. The aim of this project is to develop technologies appropriate for the small scale, local production of pozzolans from clay (a material widely available) in conjunction with the exploitation of waste biomass for combined heat and power production. The modular concept of a clay activation unit, CAU to be coupled with a biomass boiler, will give the flexibility to adapt the solution to local conditions. We have already demonstrated that relatively common (low grade) clayey soils can be activated to give a pozzolan similar in performance to fly ash (from coal fired electricity production) widely used in the developed world. Results also indicate that it is possible to improve their reactivity by using and optimizing flash calcination, to allow high levels of substitution and very significant improvements in cost/performance ratio. To achieve this we need also to look at the performance of the activated clays in concrete from the point of view of rheology, hardening and durability to enable optimum cost/performance to be achieved according to local materials and applications. The partnership between LMC, EPFL and two academic groups in Cuba has already been established in a previous project. Furthermore, one of the Cuban partners plays a leading role in ECOSUR (a Swiss NGO) which has established workshops, producing low cost building materials, in many developing countries. In the first part of the project significant scientific advances were made, which enabled a huge acceleration in progress, relative to previous work by the Cuban partners alone. In addition, 3 Cuban PhD students spent several months working in the Swiss laboratory and have now returned to Cuba to continue their research. In this project, funding is requested for one PhD student to be based in Switzerland, who will work closely with 3 Cuban PhD Student (funded be the Cuban government). On the Cuban side, funds are requested for essential equipment and to fund the stays of the students at EPFL. Each of the Cuban students will spend 4-8 months working at EPFL during the course of the project.
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Zement ? Beton ? Baustoff ? Material ? Kraft-Wärme-Kopplung ? Rheologie ? Umweltauswirkung ? Klebstoff ? Schweiz ? Stromerzeugung ? Flugasche ? Gebäude ? Kalzinierung ? Kohle ? Landkreis ? Lehm ? Mischkunststoff ? Unterboden ? Projektförderung ? Abgrabung ? Entwicklungsland ? Werkstoffkunde ? Nichtstaatliche Organisation ? Wirkung ? Abfallbiomasse ? Salztonebene ? Finanzierung ? Workshop ? Arbeit ? Bauelement ? Bedarf ? Biomasse ? Feuerung ? Forschung ? Forschungseinrichtung ? Heizung ? Industrieland ? Kessel ? Standortbedingung ? Umwelt ? Abfall ? Kosten ? Boden ? Produktion ? FORTSCHRITTLICH ? VERMISCHUNG ? AUSRUESTUNG ? EINBAUSCHICHT ? Angepasste Technik [Technologietransfer] ? ERGEBNIS ? FORTSCHRITT ? ANGEPASST ? Verwertung ? AKADEMISCH ? GEBRAUCHT ? GEKOPPELT ? GEMISCHT ? GRUPPE ? Haltbarkeit ? KONVENTIONELL ? LAND ? LEISTUNGSFAEHIGKEIT ? BEREICH ? WAND ? LOESUNG ? MISCHUNG ? Muskelarbeit ? NACHFRAGE ? PARTNERSCHAFT ? WISSENSCHAFTLICH ? PROJEKT ? SICHT ? TEIL ? VERFUEGBAR ? EIN ? AUSBEUTUNG ?
License: cc-by-nc-nd/4.0
Language: Englisch/English
Time ranges: 2009-09-01 - 2012-08-31
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