Bridge and Tunnel Engineering Systems

Technical Scheme of Bridge Bearing Spike Anchorage

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Bridge Bearing Grouting Material	JTB-70	2.2-2.4 ton/m³	10-12%	25kg/bag
Spike Anchoring Agent	JTB-70B	2.2-2.4 ton/m³	10-12%	25kg/bag

Application:
Used for gravity grouting of pot rubber bearings of cast-in-place beam bridges, and grouting construction of components such as column foundations, pile foundations, rock foundations, track pressure plates and bottom plates in railway, highway, bridge, tunnel and other projects. It is suitable for spike installation of track systems.

Features:
High early strength, high flexural strength, high fluidity, no shrinkage, strong durability; excellent pull-out resistance, high early strength, high compactness, strong durability.

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Technical Scheme for Grouting of Tunnel and Bridge

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Tunnel Lining Micro-expansion Grouting Material	JTB-50S	1.8-2.0 ton/m³	17-18%	25kg/bag
Special Grouting Material for Bridge Assembly	JTB-85	2.2-2.4 ton/m³	12-14%	25kg/50kg/bag
Bedding Mortar	JTB-Z50	1.5-1.6 ton/m³	14-15%	25kg/bag

Application:

1. Used for tunnel lining grouting, support anchor grouting, pile end grouting, underground reinforcement grouting, etc.

2. Used for installation grouting of tunnel U-shaped segments, grouting connection of side columns and central columns, and connection grouting of prefabricated bridges.

3. Used for sealing and bedding grouting during grouting of prefabricated buildings and PC components.

Features:

1. Early strength, high strength, micro-expansion, self-leveling, self-compacting, crack resistance, segregation resistance, strong durability, etc.

2. Convenient construction, fast setting time, high compressive strength, and strong bonding ability.

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Segment Repair Technical Scheme

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Tunnel Segment Repair Mortar	JTB-55G	1.5-1.7 ton/m³	14-16%	25kg/bag
Gravity Mortar	JTB-60Z	2.2-2.4 ton/m³	12-14%	50kg/bag

Application:

1. Defect repair of shield segments and prefabricated components.

2. Installation and filling of steel plates for wind barrier bases, sound barrier bases and utility pole bases.

Features:

High early strength, excellent fatigue resistance, no shrinkage of later strength.

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Technical Scheme of Tunnel Waterproof Reinforcement

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Cement-based Penetrating Crystalline Waterproof Coating	JTB-905	1kg/m²	/	20kg/barrel
Eco-friendly Polymer Cement Slurry	JTB-903	1kg/m²	2:1	20kg powder + 2.5kg emulsion/barrel

Application:

Used for concrete reinforcement of building structures, waterproofing and leakage stopping of civil air defense facilities; anti-seepage treatment of reservoir dams and ports; chemical corrosion resistant buildings such as anti-corrosion pipeline hot water tanks, landfills, chemical warehouses and chemical tanks.

Features:

Excellent waterproof and anti-seepage effect, high bonding strength and strong corrosion resistance. It has good high humidity resistance, aging resistance and frost resistance, and meets the environmental protection requirements.

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Technical Scheme of Bridge Grouting

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Prestressed Duct Grouting Material	JTB-K60	1.3-1.5 ton/m³	28-30%	40kg/bag
Prestressed Duct Grouting Agent	Concrete element JTB06	25-35kg/m³	/	25kg/bag

Application:

Used for filling grouting of post-tensioned beam prestressed ducts, anchorage grouting of ground anchor systems, leakage stopping grouting of continuous wall heads, curtain grouting, equipment foundation grouting, beam-column joint repair, emergency engineering repair and bolt anchoring, pore grouting of high-strength steel prestressed concrete components, and road and bridge reinforcement.

Features:

Good fluidity, high strength, no bleeding, no delamination, and good durability.

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Technical Scheme of Tunnel Reinforcement and Corrosion Prevention

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Epoxy Resin Repair Mortar	JTB-90	2.2-2.3 ton/m³	3:1:21	25kg/bag + 15kg/barrel + 5kg/barrel
Self-compacting Fine Aggregate Concrete	JTB-60	2.0-2.2 ton/m³	12-14%	25kg/50kg/bag

Application:

Used as corrosion-resistant material in corrosive environments such as seawater, saline-alkali areas and chemical plants. Suitable for sealing and anti-corrosion of joints of underground pipelines, hydropower stations, dam foundations, etc. Suitable for defect treatment of cracks in beams, columns, pile caps of buildings, as well as honeycombs, holes and exposed reinforcement on the surface of concrete structures.

Features:

It has better mechanical properties such as compressive strength and bonding performance than cement-based materials, and can withstand long-term contact corrosion by chemicals such as acids, alkalis, salts and oils.

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Technical Scheme of Road and Bridge Reinforcement and Repair

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Track Cement Mortar	JTB-60	2.0-2.2 ton/m³	12-14%	25kg/50kg/bag
Special Repair Material for Bridge Expansion Joints	JTB-80	2.2-2.3 ton/m³	11-12%	25kg/bag

Application:

1. Used for grouting of crane track grooves in ports and wharves, track pressure plate grouting, bolt fixing, and installation grouting of various mechanical equipment.

2. Used for rapid repair of damaged pavement concrete in airport runways, highway pavements, expressway and high-speed railway bridge decks, bridge expansion joints, municipal roads, etc.

Features:

1. It has the functions of rapid early strength, high strength, crack and compression resistance, and earthquake resistance, and can be constructed without closure and opened to traffic quickly within 2 hours.

2. High early strength, high flexural strength, high fluidity, no shrinkage, high compactness, and strong durability.

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Bridge Tunnel Concrete Waterproof Technical Scheme

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Concrete Surface Waterproofing Agent	JTB-6683	8-10m²/kg	/	20kg/50kg/barrel
Special Waterproofing Agent for Concrete	Concrete Element J06	5% (of cement dosage)	/	20kg/bag

Application:

1. Suitable for providing hydrophobic protection for absorbent and porous inorganic building materials, such as various types of concrete, natural stone, calcium silicate board, cement fiber board, cement mortar, cement brick, inorganic coating, etc.

2. Suitable for all kinds of mass waterproof concrete, hydraulic concrete, waterproof mortar, etc.

Features:

It has acid and alkali resistance and permanent waterproof effect, and can resist the erosion of rainwater and ultraviolet rays.

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Technical Scheme of Tunnel Foundation Settlement Waterproof Grouting Reinforcement

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Geopolymer Grout	JTB-K60	1.3-1.5 ton/m³	28-30%	40kg/bag
Water Glass Two-component Grouting Material	JTB-S9	0.1-0.2 ton/m³	/	25kg/bag

Application:

1. Reinforcement grouting for foundation settlement of highways and bridges.

2. Radical treatment and prevention of water leakage and seepage in tunnels and pipelines.

Features:

1. Good fluidity, high strength, micro-expansion, convenient construction, fast setting time, high compressive strength, and strong bonding ability.

2. Excellent waterproof performance, solidifies when encountering water, and fast curing time.

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Technical Scheme of Tunnel Support Reinforcement

Product Name	Spec Model	Recommended Dosage	Mix Ratio	Packaging Spec
Cement-based Penetrating Crystalline Waterproof Coating	JTB-905	1kg/m²	/	20kg/barrel
Eco-friendly Polymer Cement Slurry	JTB-903	1kg/m²	2:1	20kg powder + 2.5kg emulsion/barrel

Application:

Used for concrete reinforcement of building structures, waterproofing and leakage stopping of civil air defense facilities; anti-seepage treatment of reservoir dams and ports; chemical corrosion resistant buildings such as anti-corrosion pipeline hot water tanks, landfills, chemical warehouses and chemical tanks

Features:

Excellent waterproof and anti-seepage effect, high bonding strength and strong corrosion resistance. It has good high humidity resistance, aging resistance and frost resistance, and meets the environmental protection requirements.