MasterRoc AGA 155
Plasticising admixture with set retarding properties for use in annular grout mixes for TBM tunneling
MasterRoc AGA 155 is a powerful liquid
plasticizer which disperses and deflocculates
cement particles whilst delaying the hydration
process, thereby retarding the initial and final
set. It can be used to improve workability without
the addition of extra water, or to allow reductions
in the free water content. Due to improved
dispersion of the cement particles the process of
hydration proceeds under the optimum
conditions, leading to improved strength
characteristics with or without reduction in free
Where is MasterRoc AGA 155 applied?
- High flow, low cement content, high W/C
ratio annular grout mixes for TBM tunneling.
- Hot weather applications of grout where
control of initial and final set is important.
- Retarded mortar mixes (also in combination
with MasterCast 910)
What are the advantages of MasterRoc AGA 155?
Setting control of annular grout mixes for
injection behind segmental tunnel linings.
MasterRoc AGA 155 is designed for use in one or
two component grouting systems and is compatible
with accelerators such as MasterRoc AGA 370.
Technical Data Sheet