Abstract
Adopting methyl allyl polyoxyethylene ether (TPEG) and unsaturated carboxylic acid throught REDOX system synthetize the polycarboxylic slump retaining admixture. Researching the impact factors of temperature,reaction time, acid alcohol ratio, dosage of initiator and molecular regulator to the polycarboxylic superplasticizer with slump retaining.In the circumstance of reaction temperature is 45°C, reaction time is 4 hours, acid alcohol ratio is 1:3.25,dosages of initiator and molecular regulator are 0.27% and 4% by weight.. Using infrared spectroscopy(IR) to characterize the molecular structure of polycarboxylic superplasticizer with slump retaining.
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