Study of the nanocatalysis effect on the strength formation of reactive powder concrete
DOI:
https://doi.org/10.15587/1729-4061.2016.58718Keywords:
concrete, strength, surfactants, micellar catalysis, cement, powder, filler, rateAbstract
Changes in the rate of cement hydration affect not only the technological characteristics of concrete mixes, but also cause changes in the rate of concrete compressive strength formation.
The paper examines the effect of micellar solutions, consisting of micelle-forming surfactants or a mixture of micelle-forming surfactants and conventional molecular surfactant. The study found that the micellar solutions change the nature and the ratio of hydration products in the cement stone, but do not change the type of cement hydration products that is act as micellar catalysts. This significantly increases the rate of strength formation of reactive powder concretes, both at initial and later hardening stages.
It is proved that the micellar catalysis can be used to control hardening and strength formation of cement, thereby reducing the time to achieve the design strength of concrete. Thus, concrete gains the strength of 50 MPa for 4 days with the use of the micellar catalysis and the same strength for 28 days without additives.
References
- Aitcin Р.-С. (2004). High Performance Concrete. E&FN Spon, 140.
- Shishkіn, O. O. (2007). Tekhnologіya betonu. Kriviy Rіg: «Vidavnichiy dіm», 376.
- Khodakov, G. S. (1972). Tonkoe izmelchenie stroitelnykh materialov. Moscow: Stroyizdat, 239.
- Ratinov, V. B. (1989). Rozenberg. Vol. I. Moscow Stroyizdat, 187.
- Strizhak, P. Е. (2014). Suchasnі problemi nanokatalіzu. Vіsnyk NAN Ukraini, 7, 16–24.
- Berezin, I. V., Martinek, K., Yatsimirskii, A. K. (1973). Physicochemical Foundations of Micellar Catalysis. Russ. Chem. Rev., 42 (10), 787–802. doi: 10.1070/rc1973v042n10abeh002744
- Mitselloobrazovanie, solyubilizatsiya i mikroemulsii (1980). Moscow: Izdatelstvo «Mir», 598.
- Panicheva, L. P. (1998). Vliyanie struktury emulsionnykh i mitsellyarnykh sistem na kinetiku kataliticheskogo okisleniya alkil-aromaticheskikh uglevodorodov. Moscow, 44.
- Strizhak, P. Ye. (2013) Nanorazmernye effekty v geterogennom katalize. Teoreticheskaya i eksperimentalnaya khimiya, 49 (1), 1–19.
- Shchukin, Ye. D. (1982). Kolloidnaya khimiya. Moscow: Izdatelstvo moskovskogo universiteta, 348.
- Shishkin, A., Shishkina, A., Vatin, N. (2014). Low-Shrinkage Alcohol Cement Concrete. Applied Mechanics and Materials, 633-634, 917–921. doi: 10.4028/www.scientific.net/amm.633-634.917
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Copyright (c) 2016 Олександр Олексійович Шишкін, Олександра Олександрівна Шишкіна
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