Figure 9. Compressive Strength of Concrete Cylinders after 7 Days and 28 Days of Curing

From

Mechanical Performance and Chromium Leaching Behavior of Concrete Incorporating Tannery Sludge as Partial Sand Replacement

Rafi Bin Shahadat, Dr Khondoker Mahbub Hassan, Sayma Sultana Keya

American Journal of Civil Engineering and Architecture. 2026, 14(4), 155-165 doi:10.12691/ajcea-14-4-3