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This report is made up to two distinct elements. Part II consists of a detailed record of laboratory research carried out to develop a pattern for physicochemical investigation of admixture effects. The procedures developed were then applied to the study of the detailed chemical interactions undergone by several different kinds of superplasticizer admixtures studied with a range of cements displaying various characteristics. Specific conclusions were drawn concerning the effects on superplasticizer effectiveness of certain cement characteristics, especially nature of the gypsum component and of cement alkali content.

Chemical Admixtures of Highway Concrete: Fundamental Research and a Guide to Usage, Part II - Quantitative Analysis of Interactions between Portland Cements and Superplasticizers