Webinars - Reducing CO2 by half, in concrete * 15-16-17 Dec 2020 - re-watch & slides

Pantheon Performance Foundation organized 3 webinars in partnership with BouwCirculair

“Reducing CO2 by half, in concrete. On the road, with the latest map”

Dec. 15, 16, 17   –  15h-16.30h


We are confident that we can reduce the > 7.1 billion ton of CO2 the worlds concrete economy emits per year (study by Prof. Koji Sakai’s) by half, to the benefit of all smart stakeholders. We have now a ROADMAP where to reduce CO2 in concrete constructions, yet that is not enough. We need qualified drivers, vehicles, tools and personal skills to remove roadblocks, fill in the holes, level the playing field, and share the energy to move forward. Many recent initiatives in our society support this endeavour.


Tuesday 15-12-2020                         GREEN PROCUREMENT, chair: Prof. Jacqueline Cramer

  1. The Dutch Concrete Green Deal “BetonAkkoord”, Prof. Jacqueline Cramer (pdf)
  2. The GLOBE consensus (RILEM, IABSE, FIB, CIB), Prof. Michael Havbro Faber (pdf)
  3. The power of sustainable public procurement, Jack Amesz, City of The Hague (pdf)
  4. Big Buyers for Climate and Environment” initiative. Kaithlyn Dietz. ICLEI/Ecoprocura (pdf)
  5. The value of design: reducing CO2and materials, Eveline Gootzen, ABT (pdf)
  6. Recycling & RCC-approach, procurement for reduced CO2 concrete, Thomas Romm, Architect, Vienna (pdf)
  7. Environmental shadow cost indicator tools for granting contracts, Mantijn van Leeuwen, NIBE (pdf)
  8. Reflections; From supplier dictated to a customer-oriented economy, Boudewijn Piscaer (pdf)

Look back: Webinar “Green procurement” 15 december 2020 (youtube)


Wednesday 16-12-2020                TECHNOLOGY, chair; Wolfram Schmidt, B.A.M. Berlin

  1. Priorities from 28 ways to reduce CO2. Lars Thrane and Claus Nielsen, Danish Techn. Inst. (pdf)
  2. What does the structural/sustainability engineer need? Prof. Em. Cees Kleinman (pdf)
  3. Replacing steel. Claudio Subacchi, FSC-Tech (pdf)
  4. Non-conventional binders. Prof. John Provis, Sheffield University (pdf)
  5. (Beyond the) RECOVER project, Yiannis Pontikes, KU Leuven (pdf)
  6. Bio Binder and Admixture from Casava. Wolfram Schmidt, B.A.M. Berlin (pdf)
  7. Bio-“Beton”. Prof. Sofiane Amziane, Université Clermont Auvergne, Clermont-Ferrand (pdf)
  8. First RCC-initiative in Austria to foster carbon neutral construction, Johannes Horvath, authorised expert on concrete technology (pdf)
  9. Reflection: Is there a lack of technology? So, what ARE the problems? Boudewijn Piscaer (pdf)

Look back: Webinar “Technology” 16 december 2020 (youtube)


Thursday 17-12-2020                       PRACTICE, chair: Johan Vyncke, RILEM                                      

  1. Results survey of most common errors (and solutions) with RMC based structures. B. Piscaer (pdf)
  2. The inconvenient true properties of Lab-Crete versus Real-Crete. Gerard Hol, Vitruvius (pdf)
  3. Particle Packing; Before and After. Danylo Hadaichuk, Kiev. (pdf)
  4. Testing RCC under real life conditions onsite, Michael Härtel, Mischek ZT, Austria (pdf)
  5. VERIFICATION (& coaching): case of Geopolymer at a PRORAIL underpass. T. van Beek, SKG IKOB (pdf)
  6. Curing/ConCure technologies & habits. Julie Pierard, BBRI, Brussels (pdf)
  7. Multigrade, Multivariable, Cusum Control system (MMCQC). Barry Hudson, TKB International, Kiev (pdf)
  8. State of the Art Quality Assurance. Juan Manuel Pereira, Concrete Quality, Madrid (pdf)
  9. Reflections: From prescriptive Lab-Crete to Performance Real-Crete. Boudewijn Piscaer (pdf)

Look back: Webinar “Practice” 17 december 2020 (youtube)


The draft “MANUAL of sustainable materials for CO2 neutral construction” section “Reducing CO2 by half, in Concrete” provided the framework, in 5 parts:

  1. Introduction (context of the concrete economy)
  2. Design; Structural & Sustainability Engineering
  3. Materials
  4. Quality Assurance
  5. Knowledge transfer/Education.