Sustainable high-performance concrete: Using slag and recycled rubber
DOI:
https://doi.org/10.62638/ZasMat1977Abstract
In this study, the mechanical and durability characteristics of M60 grade concrete using waste and industrial materials like rubber powder, silica sand, and GGBS were examined. Rubber powder is used as a substitute for fine aggregates, silica sand as a substitute for M sand, and GGBS as a substitute for cement. To evaluate the effects of the ingredients used in the study, sixteen different types of concrete mixes were prepared. The durability characteristics were evaluated using saturated water absorption, ultrasonic pulse velocity, and fast chloride penetration tests. The changes in the microstructure of the concrete mixtures were also examined using XRD analysis. Based on the results obtained during the testing, the addition of slag to the concrete mix greatly improved the durability characteristics. Based on the results obtained, the mix containing 40% slag addition had better durability characteristics than the others due to the lower absorption and penetration values and the higher ultrasonic pulse velocity values. This indicates the concrete mix is homogeneous and denser. The durability characteristics were also improved due to the addition of silica sand. However, the addition of rubber powder reduced the durability characteristics due to its hydrophobic and bonding properties.
Keywords:
Slag, Silica Sand, Rubber PowderReferences
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