Concrete geotextile mattress application

Release time:

2024-11-20

Geotextile mold bags are a kind of building material with broad application prospects. Its unique advantages and convenient construction technology make it play an important role in water conservancy, transportation, construction and other fields.

Geotextile mold bag is a kind of flexible formwork for engineering. The following is a detailed introduction to it:

1. Definition and structure
Geotextile mold bag is a large-area continuous bag-shaped material made of two layers of geotextile (high-strength woven geotextile). The bag is filled with concrete or cement mortar, and after solidification, it forms an integral concrete slab, which is suitable for slope protection. The upper and lower layers of the mold bag are connected by a certain length of nylon rope to control the thickness during filling.

2. Classification
According to different processing techniques, geotextile mold bags can be divided into two categories: woven mold bags produced in factories and simple mold bags sewn by hand. Woven mold bags are mainly made of nylon, polyester and polypropylene filament fabrics. They have high strength and uniform pore size. They basically do not leak cement when filled. They can be made into a form with anti-filtration points and can be filled with mortar or fine gravel concrete by pump. Simple mold bags are sewn with polypropylene woven fabrics. The bag body itself does not have an anti-filtration function. A non-woven fabric filter layer needs to be laid on the slope surface. The bag is only filled with mortar and artificial self-flow filling is adopted.
3. Advantages and Applications
Easy and fast construction: Geotextile mold bag construction adopts one-time spraying molding, which is fast and has low labor intensity.
Strong adaptability: It can adapt to various complex terrains, especially in deep-water revetment and bottom protection, which do not require cofferdam filling and can be directly constructed underwater.
Good integrity: The slope protection surface area is large, the integrity is strong, the stability is good, and the service life is long.
Good water permeability: It has a certain water permeability, which can quickly reduce the water-cement ratio, accelerate the solidification speed of concrete, and increase the compressive strength of concrete.
Application
As a new type of building material, geotextile mold bags can be widely used in protective projects such as embankment slope protection, revetment, harbors, and docks in rivers, lakes, and seas.
Especially suitable for the protection of areas such as river embankments and coastal coasts.
4. Construction process
Clean and level the base: Before laying, the base needs to be cleaned and leveled to ensure that the mold bag can be located on a flat base surface.
Laying and installation: Measure, locate and fix the position of the mold bag, and then lay it from top to bottom, while laying the overlapping anti-filter cloth.
Filling concrete: Use the pumping method to pour concrete or cement mortar into the mold bag, and wait for it to solidify to form a structure with a certain strength.
Maintenance: After the mold bag concrete is finally set, cover it with straw bags and sprinkle water for maintenance.
5. Precautions
During the pouring of concrete, a small unit mold bag should be filled continuously as much as possible.
The filling site should be equipped with an appropriate number of personnel to observe the pouring situation. For the parts that are difficult to pour, the method of stepping can be adopted to fill them.
After filling, tie the filling cuffs with a rope to prevent the concrete from overflowing.
The defects such as footprints that are difficult to avoid during construction should be eliminated as much as possible, and then protected to prevent people and animals from stepping on or other objects from hitting or pressing.
In summary, geotextile mold bags are a kind of building material with broad application prospects. Its unique advantages and convenient construction technology make it play an important role in water conservancy, transportation, construction and other fields.

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