国家建筑材料测试中心
China Building Material Test & Certification Group Co., Ltd. - National Building Materials Testing Center
Independent laboratory evidence
CBGM-130 test report extract.
A privacy-protected public extract that retains the verified product, Sino-sina Building Materials Co., Ltd., testing institution, report reference, methods and results while omitting personal signatures and contact details.
国家建筑材料测试中心
Report signed 29 December 2022.
Sino-sina Building Materials Co., Ltd. / Sino-sina
Grey high-strength non-shrink grout; 300 kg sample quantity recorded.
Report results
Acceptance requirement and measured result remain separate.
The thresholds below are the criteria printed in this specific archived report. They are not presented as the complete current CBGM-130 grade specification.
| Property | Report requirement | Measured result | Referenced method |
|---|---|---|---|
| Initial flowability | ≥290 mm | 295 mm | GB/T 50448-2015 |
| 30-minute flowability | ≥260 mm | 280 mm | GB/T 50448-2015 |
| 3-hour vertical expansion | 0.1%-3.5% | 0.13% | GB/T 50448-2015 |
| 24-hour minus 3-hour expansion | 0.02%-0.50% | 0.04% | GB/T 50448-2015 |
| 1-day compressive strength | ≥20 MPa | 66.1 MPa | GB/T 50448-2015 |
| 3-day compressive strength | ≥40 MPa | 108.3 MPa | GB/T 50448-2015 |
| 28-day compressive strength | ≥60 MPa | 153.9 MPa | GB/T 50448-2015 |
| Flexural fatigue - relative dynamic modulus | ≥60% | 93.9% | GB/T 50082-2009 |
| Flexural fatigue - mass loss | ≤5% | 0.3% | GB/T 50082-2009 |
Chinese source excerpts
The published scans are cropped for privacy, not rewritten.
The report header, testing institution, report number, Sino-sina Building Materials Co., Ltd. identity, methods and result table remain visible. Personnel signatures and the testing-institution contact-address footer are outside these crops.
Public evidence policy
Authority without exposing the project party.
The testing institution, report number, Sino-sina Building Materials Co., Ltd. identity, methods and technical results are retained because they are directly verifiable. Project/client identity, personnel, signatures, seals, QR codes and contact addresses are not reproduced in the downloadable public extract.
Technical enquiry
Need the controlled report set for supplier qualification?
Include the wind structure and connection drawing, geometry or bond line, volume, specified performance, temperature, standards, installation window and equipment.