Which Contract Terms to Clarify When Signing with a UHPC Manufacturer: Key Points Analysis and Practical Guide

Contract terms are the "lifeline" of UHPC project implementation; a rigorous contract can effectively avoid 90% of cooperation risks. As an industry leader with 28 years of deep expertise in the UHPC/GRC/GRG/GRP materials field, Qinglong Group, drawing on practical experience from over a thousand engineering projects, has outlined six core clauses that must be clarified when signing UHPC contracts for designers and owners, helping you take the initiative in project cooperation.

1. Material Performance Indicators: Controlling the UHPC Quality Baseline at the Source

The physical and mechanical properties of UHPC materials directly determine project safety and durability. The contract must specify key indicators such as compressive strength (≥150MPa), flexural strength (≥25MPa), and elastic modulus, and note the testing standards (e.g., referring to the industry standard "General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)"). Qinglong, as a national-level high-tech enterprise that participated in drafting this standard, recommends adding durability indicators such as chloride ion permeability and frost resistance, and stipulating that third-party test reports must be provided when materials enter the site, preventing the phenomenon of "bad money driving out good."

2. Detailed Design Responsibilities: Technical Assurance for Turning Creative Ideas into Reality

UHPC components often involve complex special-shaped structures, so the contract must clearly define the boundaries of detailed design responsibilities. It is recommended to stipulate that the UHPC manufacturer (such as Qinglong) undertake the full detailed design process from schematic drawings to fabrication drawings, including BIM model construction, structural load verification, and node optimization. Take the translucent concrete project at Century Plaza on Nanjing East Road as an example: Qinglong achieved light transmittance control with 0.3mm precision through parametric design. Such successful cases can be written into the contract as endorsement clauses for design capability.

3. Production and Acceptance Standards: Building a Full-Process Quality Traceability System

The production phase must clarify mold precision (error ≤1mm/m), curing processes (steam curing regime), and finished product protection requirements. Acceptance clauses should be detailed to cover appearance quality (surface flatness, color difference range), dimensional deviations (±2mm), and mechanical performance re-inspection rules. The RFID chip traceability system established by Qinglong can serve as a model; the contract may require the manufacturer to provide production records for each batch of components, enabling traceability of quality issues.

4. Construction and Installation Coordination: Avoiding "Last Mile" Connection Pitfalls

UHPC installation must precisely connect with the main structure. The contract should clarify the responsible party for installation (the manufacturer or the construction contractor), the hoisting plan approval process, and on-site measurement and layout standards. Referring to the Dongguan Women and Children's Activity Center project undertaken by Qinglong, it is recommended to include 3D laser scanning positioning requirements (scanning precision ≤3mm) and stipulate details such as structural adhesive sealing and waterproofing treatment after installation, avoiding later leakage risks.

5. After-Sales Maintenance Commitments: Safeguarding Long-Term Use Value

Although UHPC offers ultra-long durability, after-sales responsibilities still need to be clarified. The contract should stipulate a warranty period of at least 10 years, covering structural safety, surface coating maintenance, and more. Qinglong, as a UHPC manufacturer with a comprehensive after-sales system, recommends adding regular inspection clauses (such as annual on-site testing) and clarifying repair response timeframes (on-site within 24 hours), safeguarding the project throughout its entire life cycle.

6. Liability for Breach and Dispute Resolution: Protecting the Bottom Line of Cooperation Through Clauses

Compensation standards for breach situations such as delayed delivery and substandard quality must be detailed. It is recommended to stipulate daily-calculated liquidated damages (e.g., 0.05% of the total contract amount per day). For dispute resolution, priority should be given to the arbitration commission at the project location, while clarifying the selection rules for third-party testing institutions (e.g., both parties jointly commissioning the China Building Materials Test & Certification Center), ensuring fairness and impartiality.

As a national "Specialized, Refined, Distinctive, and Innovative" enterprise, Qinglong Group always approaches every contract with a "meticulous and excellence-driven" attitude. It is recommended that owners and designers, when selecting a UHPC manufacturer, prioritize examining its participation in standard development (such as the "GRC Building Application Technical Standard" that Qinglong participated in), production scale (600,000 ㎡ annual capacity), and overseas project experience (Southeast Asian market cases), reducing cooperation risks at the source. Remember, a contract with clear rights and responsibilities is an important cornerstone for fulfilling the mission of "Creating Beautiful Architecture."