Albu-Hasan A. Increase of physical and mechanical properties of concrete by the activation of limestone binder one

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0415U005514

Applicant for

Specialization

  • 05.23.05 - Будівельні матеріали та вироби

05-10-2015

Specialized Academic Board

Д 41.085.01

Odessa State Academy of Civil Engineering and Architecture

Essay

The object of study : the processes of slaking , the use of high temperatures and alkalinity of the medium to activate the input water modifiers to improve the properties of mortars and mortar. The purpose of research - to obtain a modified lime binders and concrete with high performance properties and construction and technical and economic indicators. Research Methods : We used the methods mineralogennoy engineering; circuitry designed to determine the resistance values of the electric current passing through the different composition and activation modes , aqueous solutions and suspensions ; is applied systematically and Technology on the basis of structural chemistry method ; developed a method of evaluation of the ionization of water , the solution and the suspension ; applied methods of X-ray diffraction and electron microscopy. The practical significance of the results : recycled heat from slaking as a medium for accelerating chemical reactions between activator , water and CaO ; defined technical and economic efficiency of the heat recovery savings of lime and a binder ; Scientific novelty of the results : theoretically grounded and experimentally proved the legitimacy of the use of the thermal effect of extinguishing lump lime and high alkalinity of the environment for the activation of chemical reactions ; proved and experimentally confirmed the hypothesis of "High thermal effect hydration of lime can be used, if it is to extinguish the aqueous solutions (emulsions, suspensions), active substances, the energy of interatomic bonds is greater than the energy of interatomic bonds CaO and H2O molecules'; taking into account the physico-chemical studies of the composition and structure of the tumors showed enhancement of the effect of ionization of water systems after activation and tumor derived - Aragon; The research results were presented at international scientific conferences; confirmed the emergence of a new formation - aragonit- using DRON - 4.0; results of studies used in the development and modernization of the production line at the post quench lump lime and active substances introduced in the construction of " Budova " Odessa.

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