چكيده به لاتين
Abstract:
Self-consolidating concrete (SCC) is a particular technology that is applicable in various fields of construction products such as architectural concrete, due to its high flow ability without need for vibration. Incorporation of color theory in SCC leads to a new aesthetic aspect developing elegant colors and textures in conventional concretes. In this research, the effect of inorganic yellow iron hydroxide, white titanium dioxide and the organic blue copper phthalocyanine pigments on mechanical and colorimetric properties of self-consolidating mortars (SCMs) was studied. The mortar phase was assessed because of its effectiveness on fresh SCC rheology. Influence of green pigment (blend of organic and inorganic materials), pigment particle size reduction, cement type and latex usage was studied as well as SCM containing latex colored paste production. According to the results, applying 10 and 2% of yellow and white pigments respectively improves the SCM’s color and mechanical properties. Green and the organic pigment, however, decrease the strength and spoil color uniformity. A 60-min pigment particle size reduction in dry ball mill is considered an optimum point for providing C-SCM with an appropriate fine powder. Application of color pastes based on organic and inorganic pigments increased dispersion ability without any adverse effect on mechanical properties. The novelty of this study was preparing colored latex modified SCMs with capability of characteristics’ improvement. Increasing 73.09 and 88.40% of compressive and flexural toughness of the latex modified colored SCM with respect to the control sample approves this fact that organic pigments could be used successfully in SCMs without impact on mechanical properties.
Keywords: self-consolidating concrete, inorganic pigment, organic pigment, mechanical properties, color
