Interior wall water-resistant putty is a building material used for interior wall decoration and repair. It is mainly composed of polymers, pigments, fillers and additives. The interior wall water-resistant putty has excellent waterproof performance and durability, and can effectively repair and level the cracks and unevenness of the interior wall surface, making the wall smoother, more beautiful and durable. The characteristics of water-resistant putty for interior walls include easy construction, fast drying, strong adhesion, not easy to crack and crack, and good water resistance. It is widely used in interior wall decoration and maintenance of residential, commercial and industrial buildings, and is a very practical interior decoration material.
Detection performance
Water-resistant putty for interior walls is a kind of interior decoration material, and the following performance parameters need to be tested, which are very important for the production and use of water-resistant putty for interior walls. The specific detection performance is as follows:
| performance parameter | Test Methods |
|---|---|
| construction performance | Observe the coatability, uniformity and ease of coating of the interior wall water-resistant putty |
| drying time | Observe the drying time of the interior wall water-resistant putty coating |
| water absorption | Measure the amount of water absorbed by the interior wall water-resistant putty sample within a certain period of time |
| Compressive strength | Measure the compressive capacity of water-resistant putty samples for interior walls under certain conditions |
| Adhesion | Measuring the adhesion strength between the interior wall water-resistant putty coating and the base |
| Bending strength | Measure the bending resistance of the interior wall water-resistant putty samples under certain conditions |
| Crack resistance | Measure the anti-crack performance of interior wall water-resistant putty samples under certain conditions |
| Environmental performance | Detect the content of harmful substances, volatile organic compounds and other environmental pollutants in water-resistant putty for interior walls |
The above are some common test methods. In fact, there may be other parameters and test methods for performance testing of interior wall water-resistant putty. At the same time, for some performance parameters, it is also necessary to follow relevant standards and specifications, such as ASTM (American Society for Testing and Materials) or ISO (International Organization for Standardization), etc., to ensure the accuracy and reliability of the test. In addition, different countries or regions may have different performance testing methods for interior wall water-resistant putty, and specific testing methods should refer to local standards and regulations.
Detection method
Construction performance: Observe the coating performance, uniformity and ease of coating of the interior wall water-resistant putty during the construction process, and test the construction performance by evaluating the appearance and quality of the coating.
Drying time: Observe the drying time of the water-resistant putty coating on the interior wall, and you can judge whether the coating is completely dry by touching, scratching, etc.
Water absorption: To measure the amount of water absorbed by the inner wall water-resistant putty sample within a certain period of time, the water absorption test method can be used for testing. After the sample is soaked in water for a certain period of time, the weight change of the sample is measured to calculate the water absorption.
Compressive strength: To measure the compressive strength of the inner wall water-resistant putty sample under certain conditions, the compression test method can be used to test the sample. The sample is placed in a press and compressed under a certain pressure to measure the compressive strength of the sample.
Adhesion: To measure the adhesion strength between the interior wall water-resistant putty coating and the base layer, the peeling test method can be used to test, the coating is peeled off under specific conditions, and the force required to peel off the coating is measured to evaluate the adhesion.
Bending strength: To measure the bending resistance of the interior wall water-resistant putty samples under certain conditions, the bending test method can be used for testing. The samples are placed in a bending test machine and bent under certain conditions to measure the bending strength of the samples.
Cracking resistance: To measure the cracking resistance of the inner wall water-resistant putty samples under certain conditions, the tensile test method can be used for testing. The sample is placed in a Tensile Testing Machine, stretched under certain conditions, and the tensile strength of the sample is measured to evaluate the cracking resistance.
Environmental protection performance: To detect the content of harmful substances, volatile organic compounds and other environmental pollutants in the water-resistant putty for interior walls, various chemical analysis methods can be used for testing, such as gas chromatography and liquid chromatography.
Precautions
When testing, you also need to pay attention to the following issues:
Sample preparation: Sample preparation needs to be carried out in accordance with relevant standards or methods to ensure that the sample preparation process and conditions meet the requirements.
Experimental conditions: When performing various performance tests, it is necessary to control the experimental conditions, such as temperature, humidity, pressure, etc., to ensure the repeatability and accuracy of the experiment.
Test accuracy: For some performance parameters, such as compressive strength, tensile strength, etc., the test accuracy will be affected by many factors, such as sample preparation, experimental conditions, test equipment, etc., it is necessary to control these factors to improve the test accuracy.
Data analysis: After completing various tests, it is necessary to conduct statistics and analysis on the test data to determine the performance characteristics of the interior wall water-resistant putty and evaluate its quality level.
To sum up, the performance testing of interior wall water-resistant putty requires different testing methods and standards. For some complex tests, professional laboratories or technicians are required. It is necessary to pay attention to the above problems when conducting the test to ensure the accuracy and reliability of the test results.
