Low-Concentration Acid Treatment of Adhered Mortar in RCA: A Multiscale Study Using Image Analysis

Abstract

AbstractThis study presents a multiscale approach to assess the effectiveness of a 24-h low-concentration acid treatment (≤0.5 mol/L) for removing adhered mortar from recycled concrete aggregates (RCA). The investigation includes three acids (HCl, H3PO4, and H2SO4) at ...Practical ApplicationsRecycled concrete aggregates (RCA) offer a cost-effective and environmentally friendly solution to the challenge of the limited availability of high-quality natural aggregates. However, their widespread application is hindered by ...