DRY MIXTURES

[:ru]Дергунов С. А.[:en]Dergunov S. A.[:] [:ru]к.т.н., ОГУ[:en]cand. Eng. Sciences, OSU[:]

[:ru]Рубцова В. Н.[:en]Rubtsova V. N.[:] [:ru]к.х.н., ОГУ[:en]cand. of Chemical Sciences, OSU[:]

[:ru]Нестеренко А. С.[:en]Nesterenko A. S.[:] [:ru]тех. дир. ООО «Энергостройиндустрия»[:en]Technical Director, OJSC «Energostroyindustrija»[:]

Alitinform №3-4 (04-05) 2008 г. 134-140 p.

Abstract

There are considered chemical bases of different plasticizers and principles of their effect on mineral compositions. Some factors are revealed, which define the choice of a modifier. The article presents the comparative analysis of the research results of the plasticized additive influence on the mixture basic rheological characteristics and physical-mechanical and structure features of stone on its base. Also the article presents the economic evaluation of the additives use in dry building mixtures.

For dry construction mixture modification various products of construction chemistry are applied. Complex additives – pre-mixes, which are mixtures consisting of several components different in their effect range are used often. Such a complex allows to radically change mixture and mortar properties, influencing almost all the indexes. The essential part of each pre-mix, as well as the one most frequently used as an independent modifier, is plasticized additive. Therefore it is not surprising that it is plasticizing agent which occupies the biggest share of manufacture and market of additives for dry construction mixtures. In general, to the experts’ opinion, the powder plasticizing additives’ market is at the stage of development yet [1].