The technology and properties of modified portland-composite cements for sustainable construction
N. M. Zaichenko, A. I. Serdiuk, A. K. Khalujshev
Donbas National Academy of Civil Engineering and Architecture
Abstract: Most pozzolanic materials, especially metakaolin or silica fume tend to increase the mixing water requirement for concrete. The most common reason is that fine mineral particles raise the water demand due to increased surface area. So, in order to optimize the grain size composition of Portland cement with the addition of silica fume and to activate the hardening process of composite cement the technology of surface modification in high-voltage electric field is proposed. The electrical agglomeration setup to produce modified composite cement has been designed. An observation of cross-section of modified composite cement particle as well as an analysis of the element distribution by SEM with EDS is shown. The hardening process of composite Portland cement with the addition of silica fume according to the data of the differential thermokinetic and X-ray analysis is considered.
Keywords: silica fume, composite cement, surface modification, electrical agglomeration, host particle, guest particle, cement paste.
Pages: 23-31.
Link for citation: Zaichenko, N. M.; Serdiuk, A. I.; Khalujshev, A. K. The technology and properties of modified portland-composite cements for sustainable construction. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2013. – Vol. 9, N 1. – Р. 23-31. – URL: https://donnasa.ru/publish_house/journals/spgs/2013-1/03_zajchenko_serdyuk_halyuschev.pdf (date of access: 18.10.2024). (in Russian)
Vol. 9, N 1 (2013)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture