Hunan Luzhi New Material Technology Co., Ltd.

ZL-G Pressure-Injection Adhesive for Bonding Steel Structures

ZL-G pressure-injected adhesive for structural bonding is a modified epoxy resin-based liquid injection adhesive. It meets the technical requirements of Grade A adhesive specified in both the "Technical Specification for Safety Assessment of Engineering Structural Reinforcement Materials" GB50728 and the "Code for Design of Bridge Reinforcement on Highways" JTG/J22, and has successfully passed the national standard 90-day damp-heat aging performance test.

Category:

Modified epoxy adhesive

Product accessories:

Product Description

Product Introduction

ZL-G pressure-injected adhesive for bonding structures is a modified epoxy resin-based liquid grouting adhesive. It meets the technical requirements for Class A adhesives specified in GB50728, the "Technical Specification for Safety Assessment of Engineering Structural Reinforcement Materials," and JTG/J22, the "Design Code for Strengthening Highway Bridges," and has successfully passed the national standard 90-day wet-heat aging performance test.

Product Advantages

1. High strength, strong bonding capability;

2. Anti-aging, with excellent resistance to acid, alkali, and water;

3. Offers a longer application window but cures quickly;

4. Offers strong impact resistance, making it suitable for dynamic load reinforcement in structures like bridges;

5. Easy to use, non-toxic, prevents sagging during facade application, and exhibits minimal shrinkage during the curing process.

Parameter metrics

Performance	Trial Project	Test conditions	A-Level Adhesive Technical Requirements	Test results
Physical Properties	Appearance	By eye	-	Even color distribution with no impurities
	Initial viscosity after mixing, mPa·s	A + B	≤1000	800
	Applicable period (operational time), min	At the applicable temperature	-	80
Colloid Properties	Tensile strength, MPa	23±2°C, 7 days	≥30	45
	Tensile elastic modulus, GPa	23±2°C, 7 days	≥2.5	3.3
	Elongation, %	23±2°C, 7 days	≥1.2	1.8
	Flexural strength, MPa	23±2°C, 7 days	≥45	65
	Compressive strength, MPa	23±2°C, 7 days	≥65	75
	Steel-on-steel tensile shear strength, MPa	23±2°C, 7 days	≥15	21
	Steel-on-steel T-notch impact peel length, mm	23±2°C, 7 days	≤25	0
	Tensile bond strength of steel-to-steel lap joint, MPa	23±2°C, 7 days	≥33	38
	Steel-to-C45 concrete direct tensile bond strength, MPa	23±2°C, 7 days	≥2.5 and characterized by cohesive failure within the concrete	4.0 and characterized by cohesive failure within the concrete
Non-volatile content (solid content), %		105±2°C	≥99	99.6
Moisture and Heat Aging Resistance (Strength Reduction Rate), %		90 days (50°C, 95% RH)	≤12	5.9