- Te-tisse company has applied and studied about the following issues during its work experience: Researches and necessary studies about processing and mixing of high strength and density concrete using additives such as Micro Silica, etc. which the result of these innovations has had high proficiency in executive projects. One of Te-Tisse`s projects in which this innovation has been applied, is South Tehran Sewage conveying Tunnel- Lot I executed in the year 2000.
- The outcome of these researches and studies has reflected to other related organizations to be used in other state projects by contractors.
- Innovation in waterproofing and isolating surface and sub-surface hydraulic structures by laying – membranes and shooting or applying other additive substances.
- Innovation in using HDPE sheets for second lining of structures in various shapes for the first time in Middle East to increase the life of hydraulic structures and sub-surface structures conveying wastewater.
- Special design for shotcrete machines which are used for shotcreting surface and Sub-surface structures for the first time at the year of 1984.
- Design of special vibrators capable of being installed on moveable steel formworks which are used for concrete lining of tunnels.
- Design of special cranes to be used in sub-surface structures Special design of portable machines to inject concrete into surface and subsurface structures.
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