|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials 2021
||Effect of Flying Ash as an Additive or Substitute for Portland Cement on Compression Strength in Concrete Blocks (Vibro-compacted)
||Hugo García-Ortiz, Aislinn M. Teja-Ruiz, Miguel Pérez-Labra, Martín Reyes-Pérez, Edgar Cardoso-Legorreta, Felipe Legorreta-García, Francisco R. Barrientos-Hernández, Julio Cesar Juárez T.
|On-Site Speaker (Planned)
In the present investigation, the study of the effect of fly ash as an additive or substitute for cement in compression strength of concrete blocks (vibro-compacted) is reported. Firstly, a control specimen was manufactured without Portland cement substitution or addition, which was called the comparison standard with a strength of 71.23 kg cm-2. With this reference parameter, Portland cement was added with 15% fly ash, reaching a strength of 72.45 kg cm -2 and replaced by three different percentages of the mixture, in proportions of 15, 30 and 50%, reaching strengths of 70.61, 65.29 and 51.67 kg cm -2 respectively.
The results indicate that compressive strength decreases with increasing substitution percentage, however, at low percentages, fly ash can replace portland cement without compromising compressive strength. The physical tests were carried out under the ONNCCE standard. The fly ash was characterized using the techniques of Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and Laser Particle Size Analyzer (LPA).