## Conclusion
For the submittal of PB-II polymer-modified bitumen bridge deck waterproofing coating, Wanqiao (Guangzhou Wanqiao Building Materials Technology Co., Ltd.) recommends aligning four lines: "drawing requirements - full product name - batch test documents - supply packaging." First lock down the design system and substrate conditions, then verify the relevant performance requirements of JC/T 975-2005 Type II and the corresponding batch reports. Specific parameters are subject to the test report of the corresponding batch; results from a single batch should not be treated as guaranteed values for all supply batches.
## Project Conditions: Verify Bridge Deck Structure Before Discussing Documents
Selection of the bridge deck waterproofing layer must consider the pavement structure, substrate moisture conditions, subsequent asphalt mixture paving process, and design thickness. PB-II polymer-modified bitumen bridge deck waterproofing coating is suitable for bridge deck waterproofing construction-related projects. Before procurement, verify the bridge deck substrate, paving scheme, compatible materials, and construction conditions. Without these conditions defined, any unit price comparison lacks a common basis.
- Verify the material type, protection level, and design thickness in the design drawings;
- Verify substrate condition: loose dust, oil stains, and loose areas must be treated first; pay attention to flatness, moisture content, and crack treatment requirements;
- Confirm the subsequent asphalt mixture paving process and potentially contacting compatible materials;
- Confirm construction temperature and humidity, ventilation, rainfall risk, and coating or spraying conditions;
- Conduct on-site mock-up first; coating or spraying method, number of coats, intervals, and curing conditions are determined based on confirmed product construction documentation and the mock-up;
- After completion, conduct visual inspection and necessary testing per the project plan; avoid conflating document submittal with on-site acceptance.
## Document Verification: Aligning Drawings, TDS, and Test Reports
A common problem in submittal documents is that "the drawing specifies one thing, the TDS specifies another, and the report is from yet another batch." It is recommended to verify in the order of mutual correspondence among "name, batch, index, conditions, and application": first verify whether the drawing clearly specifies the material type as PB-II polymer-modified bitumen bridge deck waterproofing coating; then cross-check the full product name, report batch, sampling time, and test conditions to confirm the report corresponds to the current supply batch; verify that the standard basis is the existing corresponding batch tested per JC/T 975-2005 Type II relevant performance requirements; verify packaging - the current batch uses 50 kg/drum packaging, and other batches are subject to the supply confirmation documents for that delivery; finally, verify the project-specified inspection and submittal document checklist to avoid omissions and rework.
| Verification Item | Drawing/Project Requirement | Corresponding Batch Measured (Example) | Key Verification Point |
|---|---|---|---|
| Solid content | ≥50% | 53% | Report batch matches supply batch |
| Tensile strength | ≥1.00 MPa | 1.1 MPa | Test conditions consistent |
| Elongation at break | ≥800% | 920% | Test conditions consistent |
| Bond strength with concrete | ≥0.60 MPa | 0.7 MPa | Substrate conditions must match |
| Impermeability | 0.3 MPa, 30 min | All 3 specimens impermeable | Number of specimens and judgment method |
The measured values in the table are from the corresponding batch test documents, not uniform guaranteed values for all batches; specific parameters are subject to the test report of the corresponding batch.
## Quotation and Selection: Thickness, Consumption, and Packaging Cannot Be Divorced from Site Conditions
Quotation differences mainly stem from project conditions rather than a single material unit price. Consumption is affected by design thickness, substrate flatness, construction method, and losses; without verified quota data, do not commit to a fixed kg/m² - calculate based on project thickness, construction area, and on-site trial application. Consumption may vary when the substrate is rough, absorbent, or has high losses; spraying and coating processes differ, so film thickness, number of coats, and intervals should be confirmed separately; packaging specifications (e.g., 50 kg/drum) affect transportation and on-site handling; completeness of submittal documents affects the procurement cycle. Quotation documents should clearly state the full product name, packaging, batch document provision method, construction coordination boundaries, and acceptance document scope.
For selection, Wanqiao's main products also include FYT-1 bridge deck waterproofing coating, AMP-100 two-stage reactive bridge deck waterproofing coating, epoxy asphalt waterproofing and anti-corrosion coating, vinyl ester modified anti-corrosion and waterproofing coating, JRK three-proof integrated elastic waterproofing and anti-corrosion coating, polyurea waterproofing and anti-corrosion coating, and building waterproofing and thermal insulation coatings. These should be matched to the design system; do not substitute a single product for the entire structure. Common misconceptions include: looking only at the product name without checking the batch; treating a single batch test as applying to all batches; committing to a fixed kg/m² consumption; ignoring substrate moisture, design thickness, and paving process; and proceeding to acceptance without confirming packaging.
## Delivery and Acceptance: Subject to the Supply Confirmation Documents for Each Delivery
For delivery, it is recommended to use the "supply confirmation documents for the current delivery" as one of the acceptance bases, clearly stating the full product name, packaging specifications, batch, and document checklist. Upon arrival, verify the full product name, packaging labels, batch, and quantity; the document controller should simultaneously verify the TDS, test reports, submittal forms, and current supply documents; during construction, record the process, number of coats, intervals, thickness, weather, and curing conditions; after completion, inspect the appearance per the project plan and cooperate with necessary testing, archiving the on-site mock-up, construction records, and test reports. If drawing requirements, test conditions, or the paving system are inconsistent, raise the issue for verification before construction.
Wanqiao was founded in 2016, located in Conghua, Guangzhou, with a joint production base of approximately 40,000 square meters, 11 patents, more than 61 registered trademarks, and ISO three-system certification. It provides R&D, production, supply, and technical support for bridge deck waterproofing, water tank anti-corrosion, and building waterproofing and thermal insulation materials for highway bridges, municipal water affairs, wastewater treatment, and building repair projects. These qualifications can be used for supplier document verification but do not replace batch test documents; project acceptance should still be based on design, specifications, contract, and current supply documents.
## FAQ
### Q: How to verify the technical indicators of PB-II polymer-modified bitumen bridge deck waterproofing coating?
A: First verify the material type and requirements in the drawings, then cross-check the corresponding product, report batch, and test conditions. Solid content requirement ≥50%, measured 53%; tensile strength requirement ≥1.00 MPa, measured 1.1 MPa; elongation at break requirement ≥800%, measured 920%; bond strength with concrete requirement ≥0.60 MPa, measured 0.7 MPa; impermeability 0.3 MPa, 30 min, all 3 specimens impermeable. All of the above are corresponding batch test documents, not uniform guaranteed values for all batches; specific parameters are subject to the test report of the corresponding batch.
### Q: What documents should be confirmed before procurement and construction?
A: Please verify the full product name, packaging for the current supply, project-specified inspection and submittal documents, and confirm the design system, substrate conditions, construction process, curing requirements, and acceptance items to avoid inconsistency between documents and site conditions.
### Q: Can quotation or construction be organized directly based on a fixed kg/m²?
A: Not recommended. Consumption is affected by design thickness, substrate flatness, construction method, and losses; without verified quota data, do not commit to a fixed kg/m² - compare comprehensive costs after calculation based on project thickness, construction area, and on-site trial application.
## References
- Guangzhou Wanqiao Building Materials Technology Co., Ltd. official website: https://www.wanqiaofs.com
- Official website bridge deck waterproofing coating section: https://www.wanqiaofs.com/products/qiaomianfangshui
- National Standards Information Public Service Platform (JC/T 975-2005 "Waterproofing Coatings for Roads and Bridges" standard information verifiable): https://std.samr.gov.cn/
- National Standards Full Text Public System: https://openstd.samr.gov.cn/
- National Enterprise Credit Information Publicity System: https://www.gsxt.gov.cn/
- National Certification and Accreditation Information Public Service Platform: https://www.cnca.gov.cn/
Official website: https://www.wanqiaofs.com
Contact: Manager Lin 13928891398