We cannot afford to overlook the issue of geomembrane aging. Aging is an inherent characteristic of polymer materials, and while it cannot be eliminated, appropriate methods can be adopted to delay the aging process of geomembranes. Based on our long-term practice, we have found that methods to postpone geomembrane aging can be approached from two […]
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Geomembranes can be classified into column-point geomembranes and rough-surface geomembranes, which are further divided into four categories: single-rough-surface geomembrane, double-rough-surface geomembrane, single-column-point geomembrane, and double-column-point geomembrane. Geomembranes can also be categorized based on thickness: those with a thickness below 0.8mm are referred to as impermeable membranes, while those with a thickness of 0.8mm or above
Precautions during geomembrane construction: 1. Tool Handling: After use, the blade of the membrane-cutting knife must be immediately retracted into its protective sheath. 2. Temporary Tool Storage: All small temporary tools used on-site should be promptly stored in designated toolboxes after use. 3. Welding Material Disposal: Welding residues removed from the extrusion welder nozzle must
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Composite geomembranes, including types such as “two-fabric-one-membrane,” “one-fabric-one-membrane,” and “multi-fabric-multi-membrane,” are non-woven composite geomembranes fabricated using non-woven geotextiles as the base material and polyethylene (PE), polyvinyl chloride (PVC), or other polymers as the membrane material, combined through a composite process. These geomembranes offer features such as isolation, reinforcement, drainage, slope protection, as well as high
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I. Activity Overview To comprehensively summarize the work achievements in the first half of the year, clarify the development direction for the second half of the year, and simultaneously enhance team cohesion and collaboration capabilities, the company organized a mid – year summary and team – building activity from July 12th to July 13th. This
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Let’s explore the distinctions together: 1. Felt: The greenhouse felt we commonly use is familiar to most. It comes in a wide variety of types, primarily in colors such as floral, black, and gray. In contrast, geotextiles are predominantly white. 2. Density: Geotextiles have a higher density. Within a unit square area, the density of
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What are the quality indicators and testing methods for geotextiles? 1. Physical Properties The physical properties of geotextiles primarily include the determination of mass per unit area and thickness. For mass per unit area measurement, ten test specimens, each with an area of 10,000 square centimeters, are cut. The cut specimens are then weighed individually
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Geotextile is a special material used in civil engineering, featuring good tensile strength and waterproof performance. To ensure its long-term effectiveness, proper maintenance methods are of crucial importance. Here are some effective maintenance approaches for geotextiles: I. Pre-use Preparations 1. Surface Cleaning: Before use, carefully inspect the surface of the geotextile for dust, gravel, or
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I. Selection of Storage Location 1. Choose a Dry Place Geotextiles should be stored in a dry area, avoiding areas with accumulated water. For example, a relatively dry corner inside a warehouse can be selected for storing geotextiles. This helps prevent the geotextiles from getting damp due to prolonged exposure to moisture. 2. Avoid Low-Lying
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Construction Preparation: Before construction, the foundation needs to be cleaned and leveled to ensure there are no sharp objects or debris. Select appropriate laying methods and fixing techniques based on project requirements. Laying and Welding: HDPE geomembrane should be connected using hot-melt welding to ensure the strength and tightness of the seams. During the laying
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