Discussion of 'Sustainable Use of Recycled-Glass Powderin Soil Stabilization' by Jair de Jesus Arrieta Baldovino,Ronaldo Luis dos Santos Izzo, Erico Rafael da Silva,and Juliana Lundgren Rose

摘要

The authors have presented an interesting and useful study on the use of recycled-glasss powder in soil improvement. The discussers would like to make a few comments to enhance the results discussion. One of the main points investigated by the authors was the loss of mass of the cement mixtures as an indication of durability. Durability tests were performed according to ASTM D559/D559M (ASTM 2015). Specimens were subjected to wetting and drying cycles followed by brushing. The mentioned standard indicates that a load of 15 N should be applied during brushing. It would be interesting if authors could detail how this force was measured and controlled.