SikaRep Microcrete-3 UW
Underwater Pumpable Microconcrete for Submerged Structural Repair
Authorized Project Distributor — Sika India | Space Arc Engineering, Ghaziabad
Product Overview
SikaRep Microcrete-3 UW is a specially formulated pumpable cementitious microconcrete designed for structural repair in fully submerged, tidal, or underwater environments. Its anti-washout admixture technology prevents the cement paste from being washed away by water during placement, ensuring that the mortar retains its mix proportions and achieves design strength even when placed directly into flowing water. SikaRep Microcrete-3 UW can be pumped through a tremie pipe or flexible hose into submerged formwork, making it the ideal solution for repairing marine piles, river bridge piers, cofferdam repairs, and tidal zone concrete elements where dewatering is impractical or uneconomical. Space Arc Engineering distributes SikaRep Microcrete-3 UW for port, bridge, and marine infrastructure repair projects across India.
Applications
- Submerged concrete pile and column repair
- River bridge pier and abutment repair in flowing water
- Port and harbour structure repair below waterline
- Cofferdam patch repairs without dewatering
- Tidal zone infrastructure repair in marine environments
- Canal and irrigation structure repair under water
Key Advantages
- Anti-washout technology — maintains mix integrity underwater
- Pumpable — placed via tremie pipe into submerged formwork
- High final compressive strength despite underwater placement
- Suitable for fresh water, brackish, and marine environments
- No dewatering required — significant cost and time saving
- Designed for use with SikaLatex Super and bonding agents
Technical Data
| Type | Anti-washout pumpable cementitious microconcrete |
| Placement Method | Pumped via tremie pipe underwater |
| Compressive Strength 28d | > 45 MPa |
| Anti-Washout | Yes — anti-washout admixture included |
| Suitable Environments | Fresh water, tidal, marine |
| Pack Size | 25 kg bags |
Get a Quote
📞 +91 9999155255
📧 info@space-arc.com
🏢 Space Arc Engineering, Sahibabad, Ghaziabad
Frequently Asked Questions
How is SikaRep Microcrete-3 UW placed underwater?
SikaRep Microcrete-3 UW is mixed to a pumpable consistency and delivered via tremie pipe or flexible hose to the base of the repair formwork underwater. The anti-washout admixture keeps the mix cohesive during placement. The tremie pipe end is kept embedded in the placed material and slowly withdrawn as placement progresses upward.
Does SikaRep Microcrete-3 UW achieve the same strength as dry-placed concrete?
The compressive strength of anti-washout microconcrete placed underwater is typically slightly lower than the same mix placed in dry conditions due to some dilution at the interface. However, SikaRep Microcrete-3 UW is engineered to achieve a minimum 28-day compressive strength of 45 MPa even under underwater placement conditions.
Is dewatering required before using SikaRep Microcrete-3 UW?
No. That is the key advantage of SikaRep Microcrete-3 UW. Dewatering cofferdam, dewatering a marine structure, or working in dry conditions is not required. The anti-washout system enables structural repair directly in the wet environment, saving significant time and cost.
Source SikaRep Microcrete-3 UW for Your Project
Space Arc Engineering is an Authorized Project Distributor for Sika India serving Delhi NCR, Ghaziabad, Noida and Uttar Pradesh.