For all anti-seepage projects and projects, HDPE The quality of geomembranes has always been a matter of great concern, but on the market HDPE There are many and miscellaneous geomembrane products, which is a very unfriendly situation for both buyers and manufacturers, so the solution HDPE The quality control of geomembrane production is an important concern of the entire industry. Here, the editor has sorted out the specific quality issues that should be paid attention to in the production process for your reference.
1. HDPE Production problems of geomembranes
1、HDPE Process Control of Geomembrane Production and Application
HDPE Geomembrane is widely used in civil engineering in various industries as steel, cement, wood, etc., but its production can be divided into three processes and three properties:
（1）Synthetic material process, HDPE The raw materials of geomembrane are mainly granular in petrochemical enterprises, and their performance and standard classification generally belong to the petrochemical and chemical industries;
（2）HDPE The production process of geomembrane involves many industries, including light industry, building materials industry and even township enterprises, which mainly depends on the performance of raw materials and formula modification;
（3）HDPE The application process of geomembrane involves more industries or majors. At the same time, due to different climate, engineering geology, hydrological stratigraphy, project scale and location, the required product performance is also different.
Because of the above reasons, the HDPE The quality control of geomembrane is very complex and difficult to coordinate, and it also makes it difficult for the corresponding manufacturers to achieve specialization, which leads to the difficulty of stabilizing the performance and quality of products on the market.
2、Incongruity of multi-industry standards
on account of HDPE There are too many industries involved in geomembranes from production to application, so the standards are inconsistent, especially the gap in the meanings of raw material performance, general product performance and product engineering performance indicators is too large. If you want to ensure the use of the project, you must adopt the same test method, otherwise its performance varies greatly. In addition, the standards formulated by various industries are based on the characteristics of their respective industries, which will inevitably lead to inconsistency or even contradiction.
Two, HDPE Quality control of geomembrane
HDPE The quality control of geomembrane is multi-faceted. Although most design and construction units are using the same quality management system, there are still quality control problems caused by human factors, especially when the management system is lax and the physique is not perfect, it is easy to cause the product quality to lose its guarantee.
1、Insufficient understanding of different standards by design units
For HDPE For geomembranes, in many cases, designers consider the product performance that should be possessed during construction and use, but it is easy to ignore the various material contents required in the national product standards, resulting in this part HDPE Geomembranes can only be applied using specific laying and use methods.
2、Production units blindly adopt additives
Some HDPE Geomembrane manufacturers only know that the additives in the products must contain antioxidants and light stabilizers during production, but they don’t know what kind of antioxidants and light stabilizers they are, what their contents are, and whether the anti-aging performance can meet the national standards, thus blindly adopting and producing, resulting in product quality problems.
3、The protection measures of the construction unit are not in place
Individual HDPE The geomembrane construction party does not carefully check the key points of product construction and sun exposure prevention, and lacks prevention HDPE General knowledge of geomembrane aging, which exposes the product completely to sunlight for many days without taking any action, resulting in HDPE Premature aging of geomembranes.
Post time: Jun-04-2025
