Nordic workshop final report

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Durability aspects of fly ash and slag in concrete Critical parameters for corrosion Key «material» parameters FA and slag generally decreases chloride diffusion rates Performance gets better over time for FA (and slag?) D Cl C crit i corr FA and slag generally increases the electrical resistivity of concrete Increased resistivity decreases corrosion rates! Needs to be resolved! Page 170 of 299 Nordic workshop, Oslo, Norway, February 15-16, 2012 11
Durability aspects of fly ash and slag in concrete Frost Resistance of Concrete Containing Secondary Cementitious Materials Experience from field and laboratory investigations Peter Utgenannt CBI - Swedish Cement and Concrete Research Institute Peter Utgenannt – Oslo16 February 2012 The SLAB METHOD for salt-frost scaling CEN/TS 12390-9 Plastic 1 sheet 2 3 3 4Temperature measurement Salt solution 7 5Specimen 6Thermal insulation The specimen is dried (65% RH, 20 ºC) for 7 days before testing T (°C) 25 20 20+ 1 30,1 + 150 30,1 + 20+ 1 The loss of mass/m 2 (scaling) is measured after 7, 14, 28, 42 and 56 cycles 15 10 5 0 -5 -10 -15 -20 -25 0 2 4 6 8 10 12 14 16 18 20 22 24 Peter Utgenannt – Oslo16 February 2012 t (h) Page 171 of 299 Nordic workshop, Oslo, Norway, February 15-16, 2012
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Durability aspects of fly ash and s
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PREFACE The workshop This publicati
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1. 2 1 0. 8 0. 6 0. 4 0. 2 0 Durabi
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De Weerdt/ Geiker Durability aspect
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Nordic workshop final report

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