Investigation of Fresh Concrete and Mechanical Properties of Self-Compacting Concrete with Waste Zinc Admixture

Self-compacting concrete (SCC) is a special type of concrete that has high workability, does not require vibration and can easily settle in molds where reinforcement density is high. The use of SCCs is becoming more and more widespread in our day, and many studies are being carried out to reduce the cost, especially by reducing the high cement dosage used in this type of concrete. The use of waste products instead of the part of cement, which is the most costly component of concrete, is at the forefront of these studies. In this study, the waste zinc slag powder was used instead of cement at a rate of 5, 7.5 and 10% by weight, and the properties of fresh concrete and compressive strength results at the end of 7 and 28-days of standard curing of the produced SCCs were investigated. As fresh concrete experiments; slump-flow test, V-funnel test, L-box test and U-box test were performed. When the results were examined, it was seen that waste zinc slag powder could improve the fresh concrete properties of SCC, and it was determined that SCC concretes produced by using this material had high strength and compressive strength equivalent to control concrete.