Evaluating Air-Entraining Admixtures for Highway Concrete (2007) / Chapter Skim
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3Project Background Extensive laboratory testing and long-term field performance have demonstrated that concrete that is properly air-entrained can better resist the action of freezing and thawing. For more than 50 years, neutralized Vinsol resin has been used effectively for air entrainment.
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Factors Affecting Air-Entrainment A statistically designed experimental program was developed to identify significant variables that influence concrete air-entrainment. Air-entraining admixture type, cement alkali, aggregate shape, mixing time, water-cement ratio, and mixing temperature were investigated.
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