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Developing a rheological method for alpha test evaluation of superplasticizer performance: channel flow test

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Document pages: 8 pages

Abstract: The development of superplasticizer has completely changed the workability and constructability of traditional vibrated concrete and self compacting concrete. The demand for polycarboxylates in the construction field is increasing. Therefore, various new polycarboxylates, the basic polymers of admixtures, are being prepared. The synthesis of new polymers requires a rapid but reliable test to evaluate their performance on concrete. Before mixing test concrete, it is also required to select the best applicable brand. This paper presents a "channel flow test " and its application. The proposed test procedure includes the mix proportion of test mortar, test method and rheological interpretation of test results.

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