Study on Preparation of Slow-release Polycarboxylate Superplasticizer by Macromonomer EPEG at Room Temperature
نویسندگان
چکیده
Abstract Slow-release polycarboxylate superplasticizer was synthetic under room-temperature conditions, a free radical copolymerization reaction occurred the action of redox initiator, and optimal preparation process temperature effect were discussed in detail. The results show that best (EP-15) is: acid-to-ether ratio is 1.89, amount NaH 2 PO 2.27%, appropriate 15-25°C, suitable macromonomer EPEG-3000 OXIRANCHEM. Tests have verified compared to commercially available slow-release (PCE-1), EP-15’s dispersion retention performance strength growth concrete 3 d, 7 28 d are significantly better.
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ژورنال
عنوان ژورنال: Journal of physics
سال: 2023
ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']
DOI: https://doi.org/10.1088/1742-6596/2539/1/012041