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Abstract The research objectives in this paper are designed to develop one new type of retarder for calcium aluminate phosphate cement (CAPC) to extend the thickening time. Results show that… Click to show full abstract
Abstract The research objectives in this paper are designed to develop one new type of retarder for calcium aluminate phosphate cement (CAPC) to extend the thickening time. Results show that due to the influence of sodium hexametaphosphate, many kinds of conventional Portland cement retarder lose the retarding function in CAPC. AMPS/IA copolymer could extend the thickening time obviously; however, the thickening curves show consistency fluctuations. Although, treated AMPS/IA copolymer could avoid the consistency fluctuation, right angle thickening property is weak. Due to the synergistic effect, the combination of treated AMPS/IA copolymer and borax is more suitable as the retarder for CAPC.
Journal Title: Construction and Building Materials
Year Published: 2017
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