About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Bogdanov Ruslan Ravil’evich assistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Pashaev Anton Vladimirovich engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Zhuravlev Maksim Vladimirovich engineer Е-mаil: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kalimullin Ajrat Arlionovich process engineer Е-mаil: This e-mail address is being protected from spambots. You need JavaScript enabled to view it LLC «TATBIO» The organization address: 420054, Russia, Kazan, Avangardnaya st., 80/1 |
| Title of the article | Superplasticizer based on polycarboxylate ether and polyaryl and their influence on the physico-technical properties of cement compositions |
| Abstract. | Problem statement. The purpose of the study is to identify the effect of superplasticizers on the physico-technical properties (cement hydration processes, setting time and normal thickness, tensile strength during bending and compression) of cement compositions. Results. The main results of the study are that effective superplasticizers and their optimal quantitative content have been determined. So, according to the results of the experiment, the most effective additives «ACE 430» and «MP 3040» were identified. Experimental studies of the kinetics of heat release during cement hydration showed that the magnitude of the temperature maximum in the compositions with the additives under investigation is higher compared with the control composition. Moreover, the introduction of the additive «MP 3040» based on polyaryl ether also leads to an increase in the contraction of the cement paste. The greatest increase in flexural strength (by 20-23 % above the control sample) and compression (by 83-85 % above the control sample) of fine-grained concrete is observed with the introduction of the «ACE 430» additive in the dosage of 1-1,5 % by weight of cement. Conclusions. The significance of the work results for the construction industry consists in determining the type and optimal quantitative content of the superplasticizer and determining the effect on the physical and technical properties of the cement compositions. It has been established that the greatest water-reducing effect, as well as the increase in flexural and compressive strength, is observed with the introduction of additives «ACE 430» and «MP 3040» in the quantitative content of 1-1,5 % by weight of cement. |
| Keywords. | modification, additives, superplasticizer admix, cement paste, hydration. |
| For citations: | Bogdanov R.R., Pashaev A.V., Zhuravlev M.V., Kalimullin A.A. Superplasticizer based on polycarboxylate ether and polyaryl and their influence on the physico-technical properties of cement compositions // Izvestiya KGASU. 2018. №4(46) P.265-273. |
