Calcium Aluminate Cements Revisited - McGill University

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SEM Images of CAC Paste (BSE) 70 C isothermal cure, T off + 8 hrs High degree of hydration hydration, high 70 C realistic ramping, T off + 8 hrs degree of porosity Discrete porosity, metastable phase development may limit porosity SEM Images: C. Gosselin
Rigid Cracking Frame and Free Deformation Frame Results 20 C CAC, OPC 6 November 21, 2011 Total Strain (�mm/m) 1200 800 400 0 -400 slight expansion GCX 58 micro-concrete 0.6% Accel., 0.3% Super 20 °C Isothermal OPC 3 micro-concrete No Admixtures 20 °C Isothermal artificial cooling -800 GCX 38 micro-concrete 0.6% Accel., 0.3% Super 20 °C Isothermal -1200 0 25 50 75 100 125 150 175 Time from Initial Setting (Hours)
Page 1 and 2: Calcium Aluminate Cements Revisited
Page 3 and 4: History 1900s -sulfate attack of po
Page 5: SEM Images of CAC Microconcrete (BS
Page 9 and 10: Interim Summary -Early Age Properti
Page 11 and 12: CAC -Curing Regimes Ambient • Mix
Page 13 and 14: Accelerated Conversion Testing ‐
Page 15 and 16: Accelerated Conversion Testing - Pr
Page 17 and 18: Interim Summary -Conversion Testing
Page 19: Thank you! http://web.engr.oregonst

Calcium Aluminate Cements Revisited - McGill University

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