The development of sustainable, environmentally friendly alkali-activated binder has emerged as an alternative to ordinary Portland cement. engineering and durability properties using various precursor combinations have been investigated; however, no study focused on the impact high-volume natural pozzolan (NP) acid resistance NP limestone powder. Therefore, current assesses (volcanic ash) powd...

Abstract The flow behavior of cementitious-like (limestone powder) suspension containing nano-Fe 3 O 4 particles at constant shear rate 10 s −1 , characterized by the evolution apparent viscosity over time, is investigated under various magnetic fields. Results show that limestone powder flow-state exhibits remarkable magneto-rheological responses, reflected a significant increase in after appl...

A fast, quantitative image analysis technique was developed to assess potential rock weathering by bacteria. The technique is based on reduction in the surface area of rock particles and counting the relative increase in the number of small particles in ground rock slurries. This was done by recording changes in ground rock samples with an electronic image analyzing process. The slurries were p...