logging in or signing up WeilMarcel Lucianna Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 619 Category: Education License: All Rights Reserved Like it (2) Dislike it (0) Added: February 14, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: sslmadhu99 (9 month(s) ago) Really nice and amazing work Saving..... Post Reply Close Saving..... Edit Comment Close By: dr_yfc (43 month(s) ago) I'm intersted in this topic. If it's possible, could I have the ppt file? Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide1: Sustainable Design of Geopolymers - Integration of Economic and Environmental Aspects in the Early Stages of Material Development Marcel Weil, Katja Dombrowski, Anja BuchwaldSlide2: Development of Geopolymers supported by System Analysis A. Buchwald Bauhaus Uni. Weimar K. Dombrowski TU Freiberg M.Weil Forschungs-zentrum Karlsruhe materialsWhat Are Geopolymers?: What Are Geopolymers? Alumosilicatic polymeric bindersGeopolymer: Geopolymer Setting MixingGeopolymer: Geopolymer - high strength - resistance against acids - temperature resistance - cold setting - quick setting - use of secondary raw materials - extended lifetimeGeopolymer: Geopolymer - high strength - resistance against acids - temperature resistance - cold setting - quick setting - use of secondary raw materials - extended lifetimeMaterial Development: Material Development Goal: Goal Selection and optimisation of the most promising geopolymer compositions for specific fields of application by the use of system analytical tools Approach: Approach 3rd Step: Detailed LCA, LCC, and optimisation of most promising geopolymers 1st Step: Screening of mineral raw materials 1st Step: Screening of mineral raw materials 2nd Step: Streamlined LCA, LCC, and key properties of geopolymersSlide10: Situation: 58 raw materials (35) Raw materials: Raw materials Secondary resources Ceramic waste materials tiles sanitary porcelain kiln lining material Ashes hard coal ash soft coal ash sewage sludge ash Slags blast furnace slag steel slag copper slag municipal waste slag Others broken down masonry brick scrap glass industry waste Primary resources Clays kaolinitic clays ilitic clay dolomitic clay Volcanic deposits trass tuff basaltSlide12: Task: Screening of raw materials What should not happen: Loosing valuable candidates Strategies: 1. Select a group of promising candidates 2. Use different methods for the screening process Situation: 58 raw materials (35)Methodes: Methodes Pre-selectionApproach 1st Step (screening raw materials): Approach 1st Step (screening raw materials) Indicators: Indicators Technical - reactivity (quantitative) - mechanical strength (quantitative) - resistance against acids (qualitative) - temperature resistance (quantitative) - setting time (quantitative) - workability (qualitative) - handling (qualitative)Indicators: Indicators Economy - raw material costs (quantitative) - costs of the thermal activation of raw materials (qualitative) - costs of grinding raw materials (qualitative) - follow-up costs caused by slow setting (qualitative) - follow-up costs caused by high water absorption (qualitative) Ecology/Health - availability/consumption of mineral resources (quantitative) - consumption of energy resources (qualitative) - toxic load (qualitative) - health and safety at the workplace (qualitative)Compensatory method - Application fields: Compensatory method - Application fieldsScreening (Compensatory method): Screening (Compensatory method) Compensatory method: Compensatory method Specifications of the application P1 P2 ... Pn AHP (Analytical Hierarchy Process) Ranking order of the alternatives for different application fields: Ranking order of the alternatives for different application fields Problem: Determination of the cut-off level Compensatory methodResults (compensatory method): Results (compensatory method) Non-compensatory method „dominance concept“: Non-compensatory method „dominance concept“ No weighting of objectives No consideration of application field„dominance concept“: „dominance concept“ °A3 °A1 °A4 °A8 °A2 °A6 °A7 °A9 °A5 °A12 °A10 °A11 °A14 °A15 °A13 technology economy Ecology/Health Stage 1 (preselection)„dominant concept“: „dominant concept“ Conclusions: Conclusions Introduction of Life Cycle Thinking in the early phase of material development is possible Preselection is important step too strong -> exclusion of valuable alternatives too weak -> additional work, costs, … Compensatory methods allows a good decision support in screening phase Dominance concept is a powerful tool for a rough screening Slide26: Thank You You do not have the permission to view this presentation. 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WeilMarcel Lucianna Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 619 Category: Education License: All Rights Reserved Like it (2) Dislike it (0) Added: February 14, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: sslmadhu99 (9 month(s) ago) Really nice and amazing work Saving..... Post Reply Close Saving..... Edit Comment Close By: dr_yfc (43 month(s) ago) I'm intersted in this topic. If it's possible, could I have the ppt file? Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide1: Sustainable Design of Geopolymers - Integration of Economic and Environmental Aspects in the Early Stages of Material Development Marcel Weil, Katja Dombrowski, Anja BuchwaldSlide2: Development of Geopolymers supported by System Analysis A. Buchwald Bauhaus Uni. Weimar K. Dombrowski TU Freiberg M.Weil Forschungs-zentrum Karlsruhe materialsWhat Are Geopolymers?: What Are Geopolymers? Alumosilicatic polymeric bindersGeopolymer: Geopolymer Setting MixingGeopolymer: Geopolymer - high strength - resistance against acids - temperature resistance - cold setting - quick setting - use of secondary raw materials - extended lifetimeGeopolymer: Geopolymer - high strength - resistance against acids - temperature resistance - cold setting - quick setting - use of secondary raw materials - extended lifetimeMaterial Development: Material Development Goal: Goal Selection and optimisation of the most promising geopolymer compositions for specific fields of application by the use of system analytical tools Approach: Approach 3rd Step: Detailed LCA, LCC, and optimisation of most promising geopolymers 1st Step: Screening of mineral raw materials 1st Step: Screening of mineral raw materials 2nd Step: Streamlined LCA, LCC, and key properties of geopolymersSlide10: Situation: 58 raw materials (35) Raw materials: Raw materials Secondary resources Ceramic waste materials tiles sanitary porcelain kiln lining material Ashes hard coal ash soft coal ash sewage sludge ash Slags blast furnace slag steel slag copper slag municipal waste slag Others broken down masonry brick scrap glass industry waste Primary resources Clays kaolinitic clays ilitic clay dolomitic clay Volcanic deposits trass tuff basaltSlide12: Task: Screening of raw materials What should not happen: Loosing valuable candidates Strategies: 1. Select a group of promising candidates 2. Use different methods for the screening process Situation: 58 raw materials (35)Methodes: Methodes Pre-selectionApproach 1st Step (screening raw materials): Approach 1st Step (screening raw materials) Indicators: Indicators Technical - reactivity (quantitative) - mechanical strength (quantitative) - resistance against acids (qualitative) - temperature resistance (quantitative) - setting time (quantitative) - workability (qualitative) - handling (qualitative)Indicators: Indicators Economy - raw material costs (quantitative) - costs of the thermal activation of raw materials (qualitative) - costs of grinding raw materials (qualitative) - follow-up costs caused by slow setting (qualitative) - follow-up costs caused by high water absorption (qualitative) Ecology/Health - availability/consumption of mineral resources (quantitative) - consumption of energy resources (qualitative) - toxic load (qualitative) - health and safety at the workplace (qualitative)Compensatory method - Application fields: Compensatory method - Application fieldsScreening (Compensatory method): Screening (Compensatory method) Compensatory method: Compensatory method Specifications of the application P1 P2 ... Pn AHP (Analytical Hierarchy Process) Ranking order of the alternatives for different application fields: Ranking order of the alternatives for different application fields Problem: Determination of the cut-off level Compensatory methodResults (compensatory method): Results (compensatory method) Non-compensatory method „dominance concept“: Non-compensatory method „dominance concept“ No weighting of objectives No consideration of application field„dominance concept“: „dominance concept“ °A3 °A1 °A4 °A8 °A2 °A6 °A7 °A9 °A5 °A12 °A10 °A11 °A14 °A15 °A13 technology economy Ecology/Health Stage 1 (preselection)„dominant concept“: „dominant concept“ Conclusions: Conclusions Introduction of Life Cycle Thinking in the early phase of material development is possible Preselection is important step too strong -> exclusion of valuable alternatives too weak -> additional work, costs, … Compensatory methods allows a good decision support in screening phase Dominance concept is a powerful tool for a rough screening Slide26: Thank You