Structure Formation of Cement Composites with Addition of Modified Diatomite

The introduction of additives of various functional purposes in cement systems is the most efficient method for improving the concrete quality. Mineral additives developed early by authors on the basis of the chemically modified diatomite, when introduced in the quantity of 1–1,5% of cement mass, increase the cement stone strength at compression up to 40% on the average. To determine the participation of particles of the modified diatomite in processes taking place in cement composites, time changes of the quantitative phase composition of materials of the raw mix have been studied with the help of X-ray diffractometry. It is shown that the modified diatomite actively participates in the processes of crystallization of products of cement hydration that leads to improving the structure and strength of the cement stone.

V.D. СHERKASOV¹, Doctor of Sciences (Engineering) (vd–This email address is being protected from spambots. You need JavaScript enabled to view it.)
V.I. BUZULUKOV¹, Doctor of Sciences (Engineering) (buzulukov–This email address is being protected from spambots. You need JavaScript enabled to view it.)
O.V. TARAKANOV², Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.I. EMELIANOV¹, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

¹ Mordovia State University named after N.P. Ogarev (68, Bolshevistskaya Street, Saransk, 430005, Republic of Mordovia, Russian Federation)
² Penza State University of Architecture and Civil Engineering (28, Germana Titova Street, Penza, 440028, Russian Federation)

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