Study on the effect of steel slag in concrete pavement for highway

Abstract

Research to recycle industry by-products to make building materials is a trend that is being interested, because it both limits the negative impact on the environment and replaces or enriches traditional materials. Steel slag aggregate is also a byproduct of the steelmaking industry using electric arc furnace technology. .In this study, the author compares the properties of concrete which have coarse aggregate replaced by steel slag 25%, 50%, 78% và 100% content (BTXT) with normal concrete (0% steel slag content and 100% natural aggregate). The results show that BTXT with 25% steel slag content (BTXT25) has the lowest mechanical properties. BTXT with 50-100% steel slag content (BTXT50, BTXT75, BTXT100) have compressive strength, flexural strength, and splitting strength greater than normal concrete.

Keywords: Steel slag; steel slag concrete; compressive strength; flexural strength, splitting strength; abrasion resistance.