What Are the Standards and Process for Product Acceptance?

In the field of architectural decoration, new materials such as UHPC, GRC, GRG, and GRP are widely used in projects including grand theaters, commercial complexes, and high-end hotels thanks to their unique properties. As a manufacturer of custom UHPC/GRC/GRG/GRP products, Qinglong Group understands that product acceptance is a key link in ensuring project quality. From a professional industry perspective, this article explains in detail the acceptance standards and whole-process essentials of new decorative materials, providing a standardized reference for designers, owners, and contractors.

### I. Core Standard System for UHPC/GRC/GRG/GRP Material Acceptance Due to differences in properties, acceptance standards vary in focus for different materials. Drawing on Qinglong's 28 years of engineering experience, **UHPC product acceptance** requires close attention to compressive strength (≥150MPa), elastic modulus, and durability indicators, and its non-load-bearing components must also comply with the industry standard "General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)"; **GRC decorative products** are tested for flexural strength (premium grade ≥12MPa), bulk density, and frost resistance in accordance with "Glass Fiber Reinforced Cement (GRC) Decorative Products" (JC/T940-2022); **GRG materials** emphasize fire performance (Class A non-combustible), water absorption, and curved surface forming precision; **GRP products** require verification of corrosion resistance, glass fiber content, and surface gloss. In addition, the environmental indicators of all materials (such as formaldehyde emission) must comply with national mandatory standards. For more industry information: +WeChat qlfsbl123

### II. Whole Process of Product Acceptance: Dual Control from Factory to Site **1. Factory Prefabrication Stage Acceptance** As an industry leader in detailed design and manufacturing, Qinglong has established a strict in-factory quality inspection process. The first step is raw material inspection—for cement and steel fibers for UHPC, alkali-resistant glass fibers for GRC, etc.—factory certificates of conformity and third-party test reports must be provided. The next step is production process patrol inspection, in which product consistency is ensured through mold precision verification (tolerance ≤2mm) and forming process monitoring (such as GRG spray-up forming pressure). Final finished product inspection includes dimensional deviation (±3mm), appearance quality (no cracks or bubbles), and mechanical performance sampling tests; qualified products are affixed with Qinglong's exclusive quality traceability mark.

**2. On-Site Installation and Final Acceptance** Construction and installation is a critical stage of acceptance. Qinglong's construction team uses 3D laser scanning positioning technology to keep the installation deviation of UHPC exterior wall panels and GRC decorative moldings within ±1mm. On-site acceptance is carried out in three steps: first, substrate treatment inspection, such as wall flatness and embedded part positions; second, installation quality acceptance, including anchoring strength (pull-out resistance ≥5kN), joint treatment (using elastic sealant), and hoisting safety; third, overall effect evaluation, such as the smoothness of GRG ceiling curved surfaces and the light transmittance of GRP daylighting roofs. After acceptance is completed, Qinglong will provide complete acceptance documentation including material reports, construction records, and maintenance manuals.

### III. Common Acceptance Issues and Solutions In actual projects, acceptance often encounters problems such as material color variation and installation misalignment. Taking the GRC curtain wall of a commercial complex as an example, Qinglong effectively controlled color variation by using raw materials from the same batch at the prefabrication stage and performing pre-layout before on-site installation; for installation deviations of complex-shaped components, BIM technology was used for pre-assembly simulation, combined with modular installation techniques, to minimize errors. In addition, Qinglong's after-sales maintenance service can promptly repair minor defects found after acceptance, ensuring long-term project stability. For more industry information: +WeChat qlfsbl123

### IV. Acceptance Advantages of Choosing a Professional Manufacturer As a national high-tech enterprise, Qinglong has participated in the development of multiple industry standards, and its acceptance system integrates 28 years of full-chain experience. From technical disclosure during detailed design, to in-process quality control during production, and then to precise control during on-site installation, a closed loop of "design-production-construction-acceptance" is formed. Strategic cooperation cases with well-known real estate companies such as Poly and China Overseas confirm Qinglong's rigor in implementing acceptance standards. Choosing a professional UHPC/GRC/GRG/GRP manufacturer like Qinglong not only ensures that products meet standards, but also improves project acceptance efficiency and quality through whole-process services.

Product acceptance is the "last checkpoint" in the application of new decorative materials, and its standards and processes directly affect the safety, aesthetics, and durability of buildings. Guided by the principle of "meticulous attention to detail and constant pursuit of excellence", Qinglong Group provides standardized acceptance solutions for the industry, helping designers bring their creative ideas to life and delivering high-quality architectural works for owners.