Bridge Expansion Joint Sealing Material
Product Features:
Meets the JT/T 1211.1-2018 standard
High-quality polymer-modified cement, mineral admixtures, additives, fine aggregates, coarse aggregates, pure cellulose, etc., mixed with water on-site for immediate use.
A new material that achieves high compressive strength within 30 minutes, ready for traffic in 1-2 hours, featuring anti-aging properties, strong adhesion, and reaching 40MPa in 2-3 hours with a compressive strength of up to 70MPa.
Compensative shrinkage to reduce concrete cracks.
Self-sealing, preventing honeycomb and voids.
Excellent durability for use in complex construction environments.
Construction performance, similar to that of conventional concrete construction methods.
Chlorine-free, with excellent durability.
Application Range:
Airport runway maintenance
Highway and bridge expansion joint protective belt repair
Rapid repairs around tramway tracks and railway crossings;
Rapid repair of potholes and defects in concrete or asphalt pavements.
Municipal manhole cover repair.
Note: Construction time is 30 minutes to 2 hours for traffic to be reopened. Special products can be customized according to customer requirements.
Construction Process:
Basic Processing:
Scrape the base surface of the cleaning equipment, ensuring there are no debris such as gravel, slurry, dust, oil stains, and release agents. The base surface should be thoroughly moistened 24 hours before grouting, and any standing water should be removed 1 hour before grouting.
Grouting method:
High-performance rapid-mix cement is characterized by rapid setting, thus the mixing location should be as close to the construction site as possible.
Mix the paste with water in the recommended ratio as stated on the product's certificate, stirring continuously with an electric mixer. The water should be drinking water, with a temperature between 5-40°C, and the standard water to material ratio (by weight) should be between 13%-15%.
Thoroughly mixed materials must be used within 20 minutes; it is strictly prohibited to add water to solidified finished products for remixing before reuse.
Achieve the desired finish by working with tools such as a scraper, caliper, and foam blocks, but avoid over-polishing.
V. Packaging and Storage:
Shelf Life: Valid for 6 months from the date of manufacture.
Store in a cool, dry, and well-ventilated warehouse.
Keep away from direct sunlight, rain, and be cautious of freezing during winter.
