Making and investigating the effect of chemical pigments on the compressive, tensile, abrasion and water absorption resistance of colored concrete with an emphasis on urban beautification

Concrete is one of the leading materials in the field of road and construction, the use of colored concrete in urban design projects can play a significant role in improving urban beautification. The purpose of this research is to investigate the effect of four pigments, blue, green, red and yellow, on the compressive, tensile, abrasion and water absorption resistance of colored concrete with an emphasis on urban beautification. For this purpose, samples of colored concrete with 3, 5 and 7% pigments and normal concrete were tested. The test results show that The use of yellow pigment will increase the compressive strength by 10, 19 and 26 percent respectively. The use of green pigment respectively 13, 28 and 42%, blue pigment respectively 6, 11 and 24% and red pigment respectively 6, 9 and 13% will reduce the compressive strength of concrete. The use of pigment will reduce the wear resistance of concrete. This resistance reduction in red pigment is equal to 9, 16 and 19 with percentages of 3, 5 and 7 respectively, in yellow pigment it is equal to 9, 13 and 16, in green pigment it is equal to 19, 30 and 37 and in blue pigment it is equal to . It will be 13, 22 and 32 percent. Therefore, concrete with yellow pigment can be used in flooring and urban roads, but other pigments can only be used in urban walls.