چكيده به لاتين
Concrete is one of the most widely used building materials. The need for quality, compactness, durability and durability of this massive material in the field of construction has led to the invention of a special type of it called self-compact concrete. Therefore, the coloration of this type of concrete with organic pigments will make a tremendous advancement in the field of architecture. Regarding the existing methods for the production of colored concrete, coloration with polymer emulsion and pigment has more advantages than other methods. In this project, standard non pigmented specimens containing two types of ACR and SBR latex were first made. Then, the properties of the mortar were re-evaluated by adding four organic pigment, blue, green, red and yellow in different percentages, That the sharp drop in compressive and flexural strength in all pigments is very obvious. After that, by adding Latex to the pigment containing mortar, better properties were observed in a series of pigments. By using polymer latex and organic pigment, a colored polymeric paste was made. The use of colorant paste to color the concrete, in addition to increasing the quality of the color, greatly increases the mechanical properties of the concrete, especially the compressive and flexural strength, which is very important in the construction industry. Also, the use of colorant paste has made it possible to make a sample with higher percents of pigment. Adding the filler to the paste also makes it easier to open the pigment and make the color clearer. At low levels of pigment, an increase of 15% and at high levels of pigment increase by about 9% is observed in chroma. Also, a 35% increase in compressive strength is evident. By examining the effect of mixing time of paste, its ineffectiveness in color properties and compressive strength were cleared. And increasing the mixing time in high percentages of pigment helps to improve flexural strength. The presence of calcium nano-Carbonate in colored paste in both 1 and 3%, indicated that the presence of nano has a significant effect on the improvement of mechanical properties. This improvement in nano containing paste is about 50% in flexural strength and about 44% in compressive strength and has almost covered the decrease due to the presence of pigment, in flexural and compressive strength. In fact, the addition of nano-Carbonate to polymeric paste as an innovation of this research is a major step in the pre-made paste containing organic pigment.
