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The Study of a New Synthesis Method of Isoamyl Enol Polyoxyethylene Ether and its Compatibility on Cement
In this study, a kind of water reducing agent based on Isoamyl enol polyoxyethylene ether were synthesized in water solution by radical copolymerization. The influence of copolymerization conditions on dispersing performance of the water reducing agent in the cement was investigated. The molecular structure of the copolymer was tested by NMR, and GPC was used to determine the molecular weight of copolymer and the big monomer percent conversion, also, testing the adaptability of the water reducing agent in different types of cement. The testing results show that the water reducing agent has the good performance on concrete. When the dosage of water reducing agent was 0.2%, the (Deer ding card, P. O42.5) slurry flow degree of the cement was 270 mm, and the water reducing ratio reached 19.6%. When the dosage of water reducing agent was 0.3% and 0.4%, the water reducing ratio reached to 28.6% and 31.9% respectively. Comparing the adaptability of the water reducing agent on all kinds of cement, the water reducing agent performed the worst in the P. C cement and better in the P. O cement, its adaptability in the standard cement and P. S cement was the best. When the dosage of water reducing agent was 0.2%-0.4%, the water reducing ratio was nearly the same, When the dosage of water reducing agent was 0.4%-0.6%, the water reducing ratio in the standard cement was higher than in the P. S cement.
The Study of a New Synthesis Method of Isoamyl Enol Polyoxyethylene Ether and its Compatibility on Cement
In this study, a kind of water reducing agent based on Isoamyl enol polyoxyethylene ether were synthesized in water solution by radical copolymerization. The influence of copolymerization conditions on dispersing performance of the water reducing agent in the cement was investigated. The molecular structure of the copolymer was tested by NMR, and GPC was used to determine the molecular weight of copolymer and the big monomer percent conversion, also, testing the adaptability of the water reducing agent in different types of cement. The testing results show that the water reducing agent has the good performance on concrete. When the dosage of water reducing agent was 0.2%, the (Deer ding card, P. O42.5) slurry flow degree of the cement was 270 mm, and the water reducing ratio reached 19.6%. When the dosage of water reducing agent was 0.3% and 0.4%, the water reducing ratio reached to 28.6% and 31.9% respectively. Comparing the adaptability of the water reducing agent on all kinds of cement, the water reducing agent performed the worst in the P. C cement and better in the P. O cement, its adaptability in the standard cement and P. S cement was the best. When the dosage of water reducing agent was 0.2%-0.4%, the water reducing ratio was nearly the same, When the dosage of water reducing agent was 0.4%-0.6%, the water reducing ratio in the standard cement was higher than in the P. S cement.
The Study of a New Synthesis Method of Isoamyl Enol Polyoxyethylene Ether and its Compatibility on Cement
Xiao, Li-Guang (author) / Yan, Cun-You (author) / Zhang, Shi-Ting (author)
2013
4 Seiten
Conference paper
English
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