The GB T 20473-2021 standard of "Building Insulation Mortar" provides specific methods and requirements for the inspection of appearance quality to ensure that the building insulation mortar meets the relevant standards in appearance and ensures the aesthetics and construction quality of the product. The following is a general introduction to the appearance quality inspection in the standard, including the main test items, methods and standard requirements.
1.The purpose of appearance quality inspection:
Appearance quality inspection is to evaluate the visual surface condition of building insulation mortar, including color, gloss, flatness and other factors. This helps to ensure that the building insulation system will look good after construction is completed, meeting aesthetic and functional requirements.
2.Main test items:
2.1 Color:
Test method: Use a colorimeter or human eye observation method.
Standard requirements: Compare according to the color standards specified in the product specifications to ensure color consistency.
2.2 Flatness:
Test method: Using the plate detection method, by placing a flat plate on the surface of the mortar, the gap or deformation between the plate and the surface is observed.
Standard requirements: According to the standard, the flatness should meet certain requirements to ensure that the surface flatness meets the aesthetic and construction requirements.
2.3 Gloss:
Test Method: Observe the surface gloss, which can be quantitatively measured using a gloss meter.
Standard requirements: Ensure compliance with the range specified in the standard according to the gloss requirements in the product specification.
2.4 Surface Defects:
Test method: Visually or with the help of a microscope and other equipment to check whether there are cracks, pits, holes and other defects on the surface.
Standard requirements: According to the standard provisions, determine the type, quantity and allowable degree of defects.
3.Steps:
1.Sampling: Random sampling from production batches ensures that the samples are representative of the quality level of the entire batch.
2.Preparation before testing: According to the different test items, prepare corresponding testing equipment and tools, such as colorimeter, flat plate, gloss meter, etc.
3.Test operation: Conduct the test in accordance with the test method specified in the standard, and record the test results.
4.Result evaluation: Compare the test results with the requirements of the standard to evaluate whether the appearance quality meets the requirements of the standard.
5.Recording and reporting: Record the key information in the testing process and form a test report, including sample information, test methods, results, etc.
4.Adjustments and precautions for standard requirements:
Depending on the specific product specification, the standard requirements for cosmetic quality may vary, so the relevant standard documentation should be carefully consulted when conducting inspections.
Pay attention to environmental factors, such as lighting conditions, viewing angles, etc., to ensure the accuracy of the test results.
5.Significance of the test results:
The results of appearance quality inspection directly affect the overall appearance of the building insulation system, and are also closely related to the process quality and construction quality of the product. Through the appearance quality inspection, product quality problems can be found and corrected in time to ensure the stability and aesthetics of the building insulation system.
Overall, the appearance quality inspection part of the GB T 20473-2021 standard provides detailed and systematic guidance for ensuring the overall quality of building insulation mortar, which helps to ensure the good appearance of building insulation mortar during construction and use.