TY - JOUR
T1 - Composite binder obtained by using of dust from clinker kilns
AU - Dvorkin, Leonid
AU - Zhitkovsky, Vadim
AU - Ribakov, Yuri
AU - Bordiuzhenko, Oleh
AU - Stepanuk, Anton
N1 - Publisher Copyright:
© 2019, Fundatia Serban Solacolu. All rights reserved.
PY - 2019
Y1 - 2019
N2 - The paper deals with the features of obtaining a composite binder containing cement kilns dust, blast furnace slag and Portland cement, in which increased complex activation of blast-furnace granulated slag is achieved, due to the increased content of alkalis in cement dust, as well as the effects of hydroxide and calcium sulphate, contained in the cement. The influence of composition, fineness of grinding and content of chemical additives on the hydration degree and strength of low water demand binders was studied. The optimal relationships between the binder composition and the required fineness of the grinding are established, which ensure the strength characteristics and the hardening speed. The influence of superplasticizers naphthalene formaldehyde and polycarboxylate types, which provide low water demand of binder and high fineness of its grinding, is studied. Using the method of the experiment mathematical planning, equations for the regression of compressive and flexural strengths in different compensations were obtained, which allow predicting strength, taking into account the composition and features of the technology for obtaining the binder.
AB - The paper deals with the features of obtaining a composite binder containing cement kilns dust, blast furnace slag and Portland cement, in which increased complex activation of blast-furnace granulated slag is achieved, due to the increased content of alkalis in cement dust, as well as the effects of hydroxide and calcium sulphate, contained in the cement. The influence of composition, fineness of grinding and content of chemical additives on the hydration degree and strength of low water demand binders was studied. The optimal relationships between the binder composition and the required fineness of the grinding are established, which ensure the strength characteristics and the hardening speed. The influence of superplasticizers naphthalene formaldehyde and polycarboxylate types, which provide low water demand of binder and high fineness of its grinding, is studied. Using the method of the experiment mathematical planning, equations for the regression of compressive and flexural strengths in different compensations were obtained, which allow predicting strength, taking into account the composition and features of the technology for obtaining the binder.
KW - Binder
KW - Dust
KW - Grinding
KW - Hydration degree
KW - Kiln
KW - Strength
UR - http://www.scopus.com/inward/record.url?scp=85073731682&partnerID=8YFLogxK
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AN - SCOPUS:85073731682
SN - 1583-3186
VL - 49
SP - 361
EP - 369
JO - Revista Romana de Materiale/ Romanian Journal of Materials
JF - Revista Romana de Materiale/ Romanian Journal of Materials
IS - 3
ER -