Effect of Adding Carbon Soot on the Compressive Strength of Concrete

In this research, the mechanical properties of concrete containing carbon soot, including compressive strength, which has not been seen in any research, have been investigated. So far, this additive has not been used for filling with internal materials. Increasing resistance by adding special additives such as carbon dioxide is one of the new research topics. The possibility of using carbon soot to improve the properties of concrete, including strength, can pave the way for research. Innovation on the other hand, reducing environmental pollution due to reduced cement consumption can provide a new chapter in the concrete industry. The present study investigates the compressive strength of concrete with the addition of carbon dioxide. For this purpose, 5 mixing schemes have been used. One control design and four designs containing carbon Nano-soot were considered in the replacement percentages of 12%, 8%, 4% and 2% by weight (relative to the weight of cement). Each of these 5 designs has been considered and made for the amounts of water to cement 0.40, 0.45 and 0.5. The samples made in this research are examined in terms of compressive strength. The compressive strength of the samples made in different ages of 7 and 28 days of concrete is discussed. The results of the present study show the fact that the use of carbon dioxide per 4% by weight of cement, leads to the highest compressive strength in the samples. © 2023 American Institute of Physics Inc.. All rights reserved.