Shotcrete or gunite was invented by Mr. Carl Ethan Akeley (1864-1926) in 1910. For attractions of a park, this American Architect was mandated to realize in concrete the reproduction of a dinosaur. Read the rest of this entry »
Shotcrete has been widely used for tunneling works and slope protection, it is also used for architectural purposes. There are two types of shotcrete application, the wet and dry process. Shotcrete is a concrete transported by means of air under pressure with high velocity. Shotcrete is applied and compacted in the same time against a surface. Read the rest of this entry »
After obtaining approval of his accelerator, other admixtures, cement, and aggregate from the Engineer, the contractor shall submit his proposed shotcrete mix designs to the Engineer for initial evaluation and comment. Read the rest of this entry »
Sika accelerator range groups Sigunit D54 AF – powder accelerator intended for dry process and Sigunit L – liquid accelerator. Sika as innovative company has been the first one to introduce Alkali free accelerator like Sigunit 54AF, Sigunit 53MY range. Sikacrete products ranges based on Silicafume technology are sprayable shotcrete repair products. Read the rest of this entry »
After designing and proportioning, a trial must be made to see how the shotcrete works together with the machine. This is only obtained by using the spraying application equipment on site, not laboratory tools. Read the rest of this entry »
