Coastal Bridge Pier Fiberglass Sleeve Strengthening Project
The Coastal Bridge Pier Fiberglass Sleeve Strengthening Project involved repair and protection of bridge piers exposed to tidal water, moisture, chloride attack and long-term erosion. The work area required reliable bonding, sealing and grouting materials that could perform on wet concrete surfaces and in underwater conditions.
For this project, Sino-Sina Building Materials Co., Ltd. supplied a complete underwater repair material system:
CBGM Underwater Anti-Washout Injection Grout – used for underwater void filling, local repair and injection grouting where washout resistance was required.
EGM-100S Underwater Epoxy Grout – used for high-strength underwater grouting and durable filling in the fiberglass sleeve system.
ZRETE Underwater Adhesive – used to bond and seal fiberglass sleeves to existing bridge pier surfaces in wet or submerged environments.
CBGM Marine Anti-Corrosion Non-Shrink Grout – used where marine durability, non-shrink performance and resistance to chloride/sulfate exposure were required.
The system supported fiberglass sleeve installation, underwater bonding, sealing of jacket edges, and annular gap grouting around coastal bridge piers. It helped restore the integrity of the pier surface, reduce water erosion risk, and improve long-term protection in a harsh marine environment.
This project demonstrates ZRETE’s practical material solution for coastal bridge pier repair, fiberglass sleeve jacketing, underwater adhesive bonding, and marine structural grouting.
Underwater adhesive application on coastal bridge pier fiberglass sleeve
Coastal bridge pier underwater epoxy grout mixing for fiberglass sleeve repair
Fiberglass sleeve installation for marine bridge pier repair
Fiberglass sleeve bonding and sealing for coastal bridge pier protection
Fiberglass sleeve panels prepared for coastal bridge pier strengthening
Related Products
CBGM Underwater Anti-Washout Injection Grout
CGM Underwater Anti-Washout Injection Grout is a rapid-setting cementitious grout for tunnel waterproofing, underground void filling and wet-condition reinforcement. It offers stable slurry performance, no bleeding and controlled expansion in water-bearing repair zones.
EGM-100S Underwater Epoxy Grout
EGM-100S is a high-strength underwater epoxy grout developed for submerged structural repair, marine rehabilitation and jacket-based pile restoration. It provides self-leveling flow, dense filling and durable underwater bonding in harsh service conditions.
CBGM Marine Anti‑Corrosion Non‑Shrink Grout
A cementitious, shrinkage‑compensated grout designed for coastal and marine infrastructure, where chloride ingress and sulfate attack can shorten service life. Available in multiple grades (CBGM‑1 to CBGM‑4) for different placement and thickness needs.
High-performance two-component epoxy adhesive for concrete and steel bonding in underwater and high-humidity environments. Delivers excellent bonding strength, chemical resistance, and construction efficiency.
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