RJ Caldwell

TL;DR: The AASHTO Test Method T277-Rapid Determination of the Chloride Permeability of Concrete and the American Society of Testing and Materials (ASTM) C1202-Electrical Indication of concrete's Ability to Resist Chlorides Ion Penetration have specified a rapid test method to rank the chloride penetration resistance of various concretes by applying a potential of 60 V DC to a concrete specimen and measuring the charge passed through the specimen during 6 hours of testing as mentioned in this paper.

TL;DR: In this paper, the leachability of six Canadian electric arc furnace (EAF) dusts in four leaching tests [distilled water, Ontario Regulation 347 Leachate Extraction Procedure, Amount Available for Leaching (AALT), and pH 5 Stat] was compared to their mineralogy.

TL;DR: In this paper, experiments were conducted to examine the responses of five different solidification systems, with and without waste, to acid addition, and the results indicated that different cementitious systems vary in their response to acid additions; the location of the pH plateau of the titration curve depends on the nature of the hydration products formed by the binder system and is affected by waste components.

TL;DR: In a field trial conducted by the Wastewater Technology Centre, it was found that the proportions of the waste (electric arc furnace dust) and binder (activated blast furnace slag) could be controlled within 2%, expressed as a fraction of the mix as mentioned in this paper.

TL;DR: In this paper, two cementitious materials, an alkali-activated blast furnace slag binder and an ASTM Type I portland cement, were used to solidify an electric arc furnace (EAF) dust, which has high concentrations of B, Cr, Hg, Pb, Ni and Zn.