Sulfuric Acid Effect on the Mechanical Properties of Concrete Containing Crumb Tires and PET

Document Type : Research Article


1 Civil Engineering Department, Ghaemshahr Azad eslamic University, Ghaemshahr, Iran

2 Civil Engineering Department, Gorgan Azad eslamic University, Gorgan, Iran


During two decades ago, it is focused on the use of various sorts of waste in the construction industry and many pieces of research are conducted in this field. With this regard, using wastes not only have benefits for the environment but also cause improvement in the properties of final goods. One sort of the waste using in the construction industry is plastic. Recycled plastics can be used as an aggregate in concrete and some concrete mechanical properties such as resistance to erosion caused by sulfuric acid attack to improve. In this study, the experimental works were conducted on concrete samples containing PET and tire rubber and their resistance against sulfuric acid attack were investigated. The concrete samples immersed in diluted sulfuric acid (pH 1) and some tests such as modulus of elasticity, splitting tensile strength, compressive strength, mass variation and ultrasonic wave velocity in intervals of 20, 40 and 60 days were conducted. The results were analyzed and evaluated. To determine the amount of erosion concrete, we measured variations of the weight and compressive strength and ultrasonic velocity. The results showed that replacement of PET with aggregate positive impact on the strength of concrete is subjected to sulfuric acid.


Main Subjects

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