Tunnel & Underground Construction
Tunnel & Underground Construction
Tunnel & Underground Concrete Admixtures by iChem
iChem provides specialized concrete admixtures for tunneling and underground construction, supporting workability and setting-time control.
AddChem TARD T109®
Tunnel & Underground Construction Description AddChem TARD T109® is a special retarder and plasticizer for TBM backfill grouts. It is a non-chloride liquid admixture formulated to give water reduction, greater workability and extended open time to concrete and cementitious grouts.
AddChem TARD T111®
Tunnel & Underground Construction Description AddChem Tard T111® is an advanced liquid admixture that acts as a retarder and plasticizer to reduce water content and improve workability in concrete mixes, especially for backfilling behind TBM (Tunnel Boring Machine)..
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