If you are managing a road construction project, you’ll need to make many important decisions in order to have the project turn out successfully. One such decision is how you will stabilize the soil on the worksite.
Soil stabilization is important for a number of reasons. Not only does soil stabilization protect against erosion, it also provides you with a stable base so that you can ensure that the road is reliable and able to handle a high load capacity. If erosion is not prevented, it could lead to ruts and potholes and could even cause the road to collapse.
The best soil stabilization techniques make good use of geotextiles. If you are not familiar with these strong, synthetic types of fabrics, read below to learn the answers to four frequently asked questions regarding geotextile fabrics.
1. What Are Geotextiles?
Geotextiles are a permeable and synthetic type of fabric that is very strong and gets buried in the ground. This type of fabric is often used in engineering projects that involve the building of roads, dams, harbors, canals, and other types of projects where the soil needs to be strengthened.
2. What Are Some of the Primary Functions of Geotextiles?
Geotextiles generally have five different functions including:
- Separation - used to keep two different types of soil materials separate from each other
- Drainage - used to collect water from the soil and release it elsewhere
- Filtration - used to retain fine particles in the soil and allow for reverse filtration
- Reinforcement - used to reinforce the soil in order to support heavy loads
- Protection - used to protect embankments from erosion and to restrict water flow
Note that when you use geotextiles, you may only need them for a few of the functions above, or you may need them for all of these functions, depending on the type of construction project you are working on.
For instance, if you are building a road, you might be working with only one type of soil, so you wouldn't necessarily need to use a geotextile for separation. You might still use it for other functions, however, such as drainage and reinforcement.
3. What Are the Different Types of Geotextiles?
There are two main types of geotextiles: woven and non-woven geotextile fabrics. The primary difference between these two types is the process by which they're made.
Woven geotextiles are made when polypropylene tapes get woven together to form a crisscross pattern that provides a high tensile strength but has limited drainage capabilities. Non-woven geotextiles are made by thermally bonding materials together. The materials from which non-woven geotextiles are made usually consist of polypropylene or a mixture of polypropylene and polyester.
Non-woven geotextiles are not as strong as woven geotextiles, but they do have a higher water permeability rate. Compared to woven geotextiles, non-woven ones do not lose their strength over time, and they are much easier to cut.
These two types of geotextiles also differ in other ways. For example, woven is more plastic-like and is used for jobs that require an added layer of protection. Its primary functions are separation and protection.
Non-woven, on the other hand, looks like felt and is used for jobs that require strong structural support. Its primary functions are drainage and reinforcement.
Woven geotextiles are available in light, medium, and heavyweight, while non-woven geotextiles are either lightweight or heavyweight.
4. Who Can I Contact for More Information About Geotextiles?
If you are planning a road construction project and you either need to learn more about geotextiles or are in need of soil stabilization products, don't hesitate to contact D X 2 Geosyntex Inc.