Application of colloid surface-active substances as a nanocatalyst of reactions cement hydration
Keywords:Surfactant; Cement; Concrete; Strength
The purpose of this work is to establish the fundamental possibility of using complex complexes consisting of colloidal and molecular surfactants to catalyze the hydration of cement compositions, the study of mechanical properties. As a result of research, it was found that the introduction of colloidal surfactant into the reaction powder concrete leads to a sharp increase in the strength of concrete at the age of 7 days. It is noted the presence of the optimal content of colloidal surfactant in the amount of 0.0007% by weight of water, which ensures the formation of the maximum strength of the system. In the next step of the experiment, an additional molecular surfactant was introduced into the system. As a result of experiments it was found that the introduction of this substance increases the strength of concrete. Thus, it was found that dimers of colloidal surfactant, which are nanocatalysts for cement hydration reactions, lead to an increase in the strength of concrete and the rate of its formation
. Shyshkіn, O. O., Khіlchenko O. P. Concrete technology. 2007 Kriviy Rіh: «Vidavnichiy dіm» (Ukraine). 376.
. Khodakov, G. S. Fine grinding of building materials. 1972 Moscow: Stroyizdat (Russia). 239.
. Ratinov V. B. Rozenberg T. I. Concrete admixtures. 1989. Moscow: Stroyizdat (Russia). 188.
. Berezin, I. V. Martinek K. Yatsimirskiy A. K. Physicochemical foundations of micellar catalysis. Advances in chemistry. 1973: р. 1729-1756.
. Mittel N. Micelle formation, solubilization and microemulsions. 1980. Moscow: «Mir» (Russian). 598.
. Shishkіna O.O., Shishkіn O.O. Investigation of the influence of nanocatalysis on the formation of the strength of reaction powder concrete. Eastern-European Journal of Enterprise Technologies 2016. 1/6. (79): 55-64.
. Strizhak, P. Ye. Nanoscale effects in heterogeneous catalysis. Theoretical and experimental chemistry. 2013.49. 1: р. 1-12.
. Shishkina A., Shishkin A. Research into effect of complex nanomodifiers on the strength of fine-grained concrete. Eastern-European Journal of Enterprise Technologies. 2018. 2/6 (92): р. 29-33.
. Shishkina A., Shishkin A. Study of the effect of micellar catalysis on the strength of alkaline reactive powder concrete. Eastern-European Journal of Enterprise Technologies. 2018. 3/6 (93): р. 46-51.
. Shishkina A., Shishkin A. Application of the easy concentration effect in concrete technology. Innovative Technology in Architecture and Design (ITAD 2020). IOP Conf. Series: Materials Science and Engineering. 2020. 907. 012038.
. Vux M.F. Molecular scattering of light in gases, liquids and solutions. L .: Publishing house of Leningrad State University, 1977. (Russia). 320.
. Prigogine I.R. Molecular theory of solutions. M .: Metallurgy, 1990. (Russia). 360
How to Cite
Copyright (c) 2021 Alexander Shishkin, Alexandra Shyshkina
This work is licensed under a Creative Commons Attribution 4.0 International License.