"Wall Facing Mortar" JC T 1024-2019 is a standard in China's building materials industry, which aims to standardize the appearance quality of wall facing mortar and ensure the beauty and durability of building exterior wall decoration. The following is a detailed description of this standard appearance inspection to ensure the quality and performance of building exterior wall finishing mortars.
1.Overview of the standard.
The JC T 1024-2019 standard mainly covers the appearance characteristics, testing methods and evaluation standards of wall finishing mortar. The development of standards aims to standardize the production and use of products and improve the overall quality of building exterior wall decoration.
2.The purpose of visual inspection.
Appearance inspection is a critical step in evaluating the appearance quality of wall finishing mortars. Its purpose is to ensure that the product has a good appearance, uniform color and no obvious defects during use, so as to improve the overall aesthetic level and durability of the building.
3.The main content of visual inspection.
Appearance inspection mainly includes the following aspects:
3.1 Color uniformity.
The color uniformity of wall finishing mortar is one of the important factors affecting the appearance quality. By observing and measuring the color of the mortar surface, the color of the entire wall is ensured to be uniform and the color difference is too large.
3.2 Surface flatness.
Surface flatness is one of the important indicators to evaluate the appearance of mortar. Use appropriate tools to measure the flatness of the mortar surface to ensure that the flatness of the wall meets the standard requirements and avoid unevenness.
3.3 Construction joints, joints and cracks.
Construction joints, joints, and cracks are inspected to rule out the impact of these defects on the appearance of wall finishing mortars. A qualified mortar should be able to effectively shield construction joints and joints, and it is not easy to crack during use.
3.4 Surface adhesion.
Surface adhesion is an important factor in ensuring the durability of wall finishing mortars. Through appropriate experiments and testing methods, the adhesion between the mortar and the base layer is evaluated to ensure that the adhesion performance can be maintained in various climatic and environmental conditions.
3.5 Surface gloss.
Surface gloss is another key indicator to evaluate the appearance of a mortar. Through the determination of gloss, judge whether the gloss of the mortar surface meets the design requirements and ensure the overall appearance of the building exterior wall.
4.Methods of visual inspection.
Visual inspection is usually carried out using a combination of visual inspection and instrumental measurements. Some obvious defects can be found through human eye observation, such as uneven color, cracking, etc.;And through the instrument measurement, some precise data can be obtained, such as flatness, adhesion, gloss and other parameters.
5.Evaluation criteria.
The JC T 1024-2019 standard for wall finishing mortar stipulates a series of evaluation criteria, including the qualified range and definition of unqualified testing indicators. Qualified wall finishing mortar should meet these evaluation standards to ensure the quality and performance of the product.
6.Conclusion.
Through the detailed introduction of the appearance inspection in the JC T 1024-2019 standard of "Wall Finishing Mortar", it can be seen that the appearance inspection is an important part of ensuring the quality of wall finishing mortar. The scientific and reasonable application of various detection indicators can effectively improve the appearance quality of products and meet the requirements of building exterior wall decoration. It is recommended that manufacturers and construction units strictly follow this standard in the production and construction process to ensure the quality and stability of wall finishing mortar and contribute to the sustainable development of the construction industry.