It’s about 30 years that this technology is being used worldwide. Today, mass-building projects have a greater tendency to use tunnel formwork in concrete structures with shear walls and slab design due to its many advantages such as forming and concreting walls and ceiling simultaneously.

Some of the advantages are as follow:

-   Reducing costs and shortening construction period (speed up the construction)

-   Formwork reusability (saving tools)

-   need of limited number of installer groups (labor costs)

-   Optimal use of the of the infrastructure area (land productivity)

-   High resistance against the waves caused by earthquakes (safety and survival)

-   Fire resistant (safety and comfort)

-  Lightening the structure and building(saving in material and Wire section and ...)

Actually utilization of this type of formwork is associating industrialization in building construction that provides the possibility of achieving optimal performance and concreting on a daily basis, similar to the regular activities in a factory.

Scrutinizing the catalog (tunnel formwork)) will give you detailed information about design and construction and utilization of this formwork.