Epoxy Repair Systems

1. Introduction

Epoxy repair systems are two-component resin-based materials designed for structural bonding, grouting, and crack injection.

They offer very high strength, adhesion, and chemical resistance, suitable for industrial and high-load conditions.

2. Subcategories

Type
Description
Application
Epoxy Mortar
Epoxy resin mixed with graded quartz sand; trowel-applied.
Structural patching, nosing, heavy-duty flooring.
Epoxy Grout (Flowable)
Free-flowing epoxy resin-based grout.
Baseplates, machine foundations, bridge bearings.
Low-Viscosity Crack Injection Resin
Thin epoxy that penetrates microcracks to rebond concrete.
Structural crack sealing (<0.2 mm).
Epoxy Bonding Agent
Applied before concrete overlay.
Old-to-new concrete bonding, patch bonding.

3. Standards

Standard
Test
ASTM C881
Bond strength & viscosity classification
ASTM C579
Compressive strength
EN 1504-4
Structural bonding materials
IS 13278
Epoxy resins for concrete repair

4. Performance (Typical Ranges)

Property
Value
Compressive Strength
70–90 MPa
Flexural Strength
25–35 MPa
Bond Strength
≥3.5 MPa
Pot Life
30–60 min
Curing
24–48 hrs

Typical Properties

  • Compressive strength: 70–100 MPa
  • Bond strength: >2.5 MPa
  • Tensile strength: 10–20 MPa
  • Chemical resistance: Excellent
  • Shrinkage: Nil

Consultant Guidance

  • Use low-viscosity epoxy injection for structural crack sealing.
  • Epoxy mortar for heavy-duty impact zones and chemical exposure areas.
  • Epoxy grouts under dynamic machinery or bridge bearings.
  • Always confirm substrate moisture <4% before application.