Jintongbao Technology Group Co. , Ltd.
Polymer Repair Mortar

Polymer Repair Mortar

JTB Polymer Repair Mortar is specially developed for surface repair of high-strength concrete structures. This mortar possesses the high strength properties of inorganic cement-based repair mortars, as well as the good toughness, adhesion and crack resistance of polymer mortars. It is particularly suitable for surface defect repair of box girders with C50 or above and track plates with C55 or above on high-speed railway passenger lines.

Product Features

• Early & high strength
• Waterproof & impermeable
• High bonding strength
• Applicable on damp substrates
• Eco-friendly
• Reliable weather resistance

Applications Scenarios

• Repair of surface defects on high-strength concrete for high-speed rail box girders & track slabs;
• Surface repair of other high-strength concrete structures

Construction Craft

• Surface Preparation: Remove the defects on the surface of the box beam and track slab, remove the cracked concrete such as peeling, loose honeycomb and corrosion, and rinse thoroughly with clean water.
• Mixing ratio: While adding water to the 15% water-material ratio, stir the JTB Polymer Repair Mortar at a slow speed for about three minutes to ensure thorough and uniform mixing.
Construction: Use a trowel to firmly press the well-mixed JTB Polymer Repair Mortar onto the repair surface. Generally, the thickness of the repair layer should not exceed 30mm, and each application should not exceed 10mm. Proceed with the upper layer construction after the surface layer is dry.
• Reference dosage: 1.5-1.6 tons per cubic meter
• Curing: After the repair is completed, the exposed mortar surface should be subjected to wet curing in the shade for 7 days (refer to the concrete curing system), and then switch to dry curing for 21 days, which can reach the designed strength.

Packaging and Storage

Packaging specification: Kraft paper-plastic film bags, 50 kg ± 1 kg per bag; 25 kg ± 1 kg per bag.

Storage: Keep in a dry, well-ventilated place away from direct sunlight and moisture.

Shelf life: 6 months.

Safety Specifications

Wear a dust mask, safety goggles, and protective gloves during application;
In case of skin or eye contact, rinse immediately with plenty of clean water. Seek medical treatment promptly if symptoms are severe.

Key Technical Indicators
Compressive strength 7d (Mpa) ≥18
Flexural strength 7d (Mpa) ≥6.0
Compressive strength 28d (Mpa) ≥40
Flexural strength 28d (Mpa) ≥10
Impermeability strength 28d (Mpa) ≥1.5
Tensile bonding strength in combination with interface agents 28d (Mpa) ≥1.5
Construction Gallery

JTB are committed to providing customers in all sectors with valuable products and
solutions that offer convenience and efficiency.

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About
Jintongbao Technology Group Co. , Ltd.
Jintongbao Technology Group Co., Ltd. is a service provider of reinforcement system solutions integrating R&D, production, sales and construction. Since its establishment, the company has been deeply engaged in the field of reinforcement.
Currently, it has three large-scale production bases in Zhenjiang, Jiangsu Province, Jinhua, Zhejiang Province, and Dongguan, Guangdong Province, with a total production capacity of over 500,000 tons. Among them, the factory in Zhenjiang, Jiangsu Province, holds an important position in the company's production system. The factory covers a vast area and has standardized, modern production facilities. The large-scale production layout enables it to have a strong capacity reserve, and its annual production capacity ranks among the top in the company's three major production bases. This enables the Zhenjiang factory to achieve large-scale, continuous production of grouting materials and other products and to respond quickly to large-scale supply demands. Meanwhile, we have a sales network covering the whole country as well as some countries and regions in Southeast Asia. We can ensure the convenience and efficiency of providing valuable products and solutions for customers in various fields, such as urban renewal, airports, Bridges and tunnels, waterproofing and anti-corrosion, wind power and nuclear power, etc.
Our company has always adhered to taking technological innovation as its core competitiveness and attaches great importance to and supports technological innovation.  Our R&D center is equipped with advanced experimental equipment and R&D tools, providing a solid hardware foundation for innovative work. Meanwhile, the R&D center boasts a high-level R&D team. As an industry benchmark leader, we attach great importance to industry innovation and were the 1st to propose the concept of "from reinforcement to pre-reinforcement". Actively leverage its industry experience and technological advantages to assist in the formulation and introduction of new standards, enabling it to better serve the industry and promote its healthy and sound development.
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