Discussion of "Laboratory and Field Evaluation of KR Slag–Stabilized Soil for Paving Applications" by Patrício Moreira Pires, Jamilla Emi Sudo Lutif Teixeira, Daiana Valt Nepomuceno, and Elaine Cristina Furieri.

Eq. (2) is similar to the unconfined compressive strength empirical correlation found by Consoli et al. ([2]) [Eq. (3)] HT <math display="block" overflow="scroll" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><msub><mi>q</mi><mi>u</mi></msub><mo>=</mo><mi>A</mi><msup><mrow><mo>[</mo><mfrac><mi> </mi><mrow><msup><mrow><mo stretchy="false">(</mo><msub><mi>C</mi><mrow><mi>i</mi><mi>v</mi></mrow></msub><mo stretchy="false">)</mo></mrow><mi>D</mi></msup></mrow></mfrac><mo>]</mo></mrow><mrow><mo>-</mo><mi>B</mi></mrow></msup></mrow></math> ht (3) where HT <math display="inline" overflow="scroll" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>A</mi></mrow></math> ht , HT <math display="inline" overflow="scroll" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>B</mi></mrow></math> ht , and HT <math display="inline" overflow="scroll" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>D</mi></mrow></math> ht = scalars; and HT <math display="inline" overflow="scroll" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><msub><mi>C</mi><mrow><mi>i</mi><mi>v</mi></mrow></msub></mrow></math> ht = volumetric cement content in relation to the total specimen volume. The value of HT <math display="inline" overflow="scroll" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi> </mi><mo stretchy="false">/</mo><msup><mrow><mo stretchy="false">(</mo><msub><mi>C</mi><mrow><mi>i</mi><mi>v</mi></mrow></msub><mo stretchy="false">)</mo></mrow><mi>D</mi></msup><mo>=</mo><mo> </mo><mo>=</mo><mn>20</mn></mrow></math> ht was chosen to normalize the results. [Extracted from the article]