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Tunnel Body EVA Waterproof Membrane Laying Procedure

The waterproof panels are installed using a simple, self-made trolley that is 6 meters long. Beforehand, the panels are pre-assembled into large sections outside the tunnel, adhered together according to the designed width. The bonding must be secure, and each joint must undergo at least six rounds of compaction.

2024

01-04

What is a geotube?

Geotextile tube bag sludge dewatering technology is a brand-new, environmentally friendly innovation. This technology integrates inflow, separation, filtration, and sludge dewatering & solidification into a single process, backed by a fully automated management system. Compared to conventional methods, it offers more stable performance, simpler operations, superior results, and significantly lower overall investment and processing costs—making it highly competitive. The core principle of the technology relies on two key driving forces: the filter structure created by the geotextile tube bag's woven material, which provides an effective pore size for filtration, and the internal liquid pressure within the bag. By adding specialized water purification agents, the process promotes efficient separation of mud from water. As a result, the water seeps out through the bag’s pores, while the sludge remains securely contained inside. Importantly, the effluent water fully meets relevant discharge standards and can even be collected for recycling and reuse.

2024

01-04

The Difference Between Anti-Stick and Self-Adhesive Waterproof Membranes

As the construction industry continues to evolve, the variety of waterproofing materials is also growing—among them, reverse-adhesive waterproof boards and self-adhesive waterproof boards are among the most commonly used. This article will explore the differences and application scopes of these two types of waterproof boards, helping readers better understand and choose the right material for their needs.

2023

12-21

What are the differences in the uses of geotextile filters and geotextile drainage nets?

Among the geosynthetics used in landfills, one is described in the design as follows: a nonwoven geotextile with a basis weight of 200 grams per square meter, intended for use in the support layer. Many people aren’t sure exactly what this material is, but if the design specifies it further as a black, mesh-like material designed to filter and collect leachate, it immediately becomes clear that this refers to the 200g geotextile filter. The geotextile filter is a water-permeable, mesh-like material woven from polypropylene and polyethylene polymers. It’s primarily used at the bottom layer of landfills to facilitate drainage, and its performance is governed by the CJ/T 437-2013 standard. Typically, these filters come in weights of either 200g or 300g per square meter, with 200g being the most common choice. Geotextile filters serve two main purposes: first, they help collect excess groundwater and surface moisture from the landfill’s top layer; second, they are used at the base of the landfill to efficiently gather leachate. When purchasing these materials, it’s crucial to clearly identify their intended application—whether they’ll be placed at the bottom or top layer. In landfill projects, you may also encounter another related product: the three-dimensional composite drainage geonet, often referred to simply as a "drainage net." While both geotextile filters and drainage nets play vital roles in landfill construction, they are entirely distinct products designed for different functions.

2023

12-06

What is the role of geotextiles in engineering applications?

Geotextile filter fabric is a black, mesh-like geosynthetic material made from virgin polypropylene granules. It incorporates a specific proportion of carbon black masterbatch, along with additives such as anti-aging agents, antioxidants, UV absorbers, and stabilizers. The fabric is produced by orienting and stretching the material into round or flat filaments, which are then woven together to create an age-resistant, non-woven geotextile. The geotextile filter fabric consists of a three-dimensional plastic mesh structure, firmly bonded on both sides to permeable geotextiles. This innovative material is specifically designed as a filtration solution for landfill sites, playing a key role in underground drainage filtration, surface seepage control at closure areas, and leachate collection and treatment systems.

2023

11-16

The difference between waterproof boards and waterproof membranes

Raw material differences: Waterproof boards are typically made from materials such as HDPE, LDPE, EVA, and PVC—materials known for their long lifespan, resistance to acid and alkali corrosion, and ability to withstand both high and low temperatures. Importantly, these materials do not release harmful substances that could pollute the surrounding environment after use. In contrast, waterproof membranes are primarily composed of synthetic materials like polymer-modified asphalt and highly polymerized asphalt. Under high-temperature conditions, these materials can emit toxic gases, and when buried underground, they may even contaminate groundwater.

2023

11-09

What are the advantages of using silt containment bags compared to the traditional method of directly piling up sludge in disposal sites?

Geotube bags, also known as silt tubes, are large, tubular containment structures made from high-strength geotextiles. Their diameter and length can be customized according to specific project requirements. These geotube fabrics come in various strength and permeability grades, while also offering excellent UV resistance and outstanding durability against seawater, microbial erosion, and other environmental challenges.

2023

11-04

What are the advantages of flood control sandbags compared to regular sandbags?

In recent years, due to widespread abnormal climate patterns around the globe, severe flooding has become increasingly frequent, putting numerous ground-level structures at risk of damage. In particular, river overflows in China have occurred almost annually, resulting in significant casualties and substantial direct economic losses. As a result, early implementation of embankment construction is crucial to prevent such disasters. Traditionally, this involves piling sandbags at vulnerable areas, a method known for its high stability. However, sourcing sufficient soil and sand from nearby sites can be challenging, and dismantling these structures often raises serious environmental concerns. Meanwhile, advanced and developed nations like Germany, Sweden, and the United States have already pioneered innovative techniques that use water instead of soil or sand inside containment tubes—a solution that has proven highly practical in real-world applications.

2023

11-02

What is the practical role of geotextile filters in real-world applications?

2023

11-01

GBT 17639-2023 Geosynthetics – Long-Staple Spunbond Needle-Punched Nonwoven Geotextile

2023

06-29

Analysis of the Construction Process for Fujian HDPE Liner Membranes

2021

01-22

Performance advantages of Guizhou EVA waterproof boards specifically designed for tunnels

2021

01-21

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ZHONGTAI HENGBANG Technology Co., Ltd.

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Long-filament geotextile

Short-fiber geotextile

Soft-body volleyball

Laminate Film Machine-Woven Fabric

Long-filament woven fabric

Plastic Flat Yarn Geotextile

Geotextile Membrane Bag

PET Polyester Welded Geogrid

PET Polyester Welded Geogrid

Plastic Geogrid

Fiber-Reinforced Geogrid

Warp-Knitted Geogrid

Steel-Plastic Geogrid

Three-way plastic geogrid

Fiberglass Geogrid

Unidirectional Geogrid

Injection-molded Geocell

Geocell

Geocell

Geotextile Pipe Bag

Geotextile Filter Mat

EVA Waterproof Board

Geosynthetic liner

Plastic drainage board

Drainage and Retention Board

Capillary drainage pipe

Capillary Drainage Board

Anti-crystallization blind pipe

Plastic drainage ditch

Expansive Soil Waterproof Blanket

Flexible Permeable Pipe

Bellows

Three-Dimensional Vegetation Mat

Crack-resistant tape

Hot-melt gasket

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