What is a Plastic Geogrid?

The plastic geogrid produced by Shandong Dajin Plastic Industry Co., Ltd. is a polymer mesh material with either a square or rectangular shape, created through a stretching process. Depending on the direction of stretching during manufacturing, these geogrids can be classified into unidirectional and bidirectional types. The production involves punching holes into polymer sheets, typically made of polypropylene or high-density polyethylene, which are extruded and then oriented and stretched while applying heat.

For more information, please visit our website.

The usage of plastic geogrids is diverse and highly beneficial in various applications:

1. Geogrids are instrumental in foundation reinforcement, where unidirectional geogrids are employed alongside transverse grids to enhance the bearing capacity of the foundation. This approach effectively controls settlement. The lateral support from these grids allows for a wider roadbed, which reduces the distribution load thereby minimizing the required thickness of the roadbed. This not only shortens construction times but also reduces costs while extending the lifespan of the road. Implementing unidirectional plastic geogrids beneath asphalt or cement pavements notably reduces wheel pressure, lengthens pavement life, and can cut down on the necessary thickness of the asphalt or cement, leading to overall project savings.
2. Geogrids also play a crucial role in slope reinforcement projects. Traditional dams with steep slopes require fill material which can sometimes make compacting challenging. If slopes are poorly compacted, rainwater can enter embankments and retaining walls, increasing the risk of erosion or collapse. By using unidirectional or bidirectional geogrids to bolster embankments or retaining walls, the land area requirement can be halved, ultimately lowering costs and prolonging durability.

In recent years, advancements in geogrid technology have focused on building materials, particularly in asphalt applications. Geogrids have been used to mitigate reflection cracks in asphalt coverings, and extensive testing has confirmed that asphalt pavements reinforced with geogrids exhibit more than double the crack resistance compared to those without reinforcement.

Comparatively, through construction trial evaluations, plastic geogrids provide a more user-friendly installation experience than alternatives such as polypropylene geogrids or geotextiles, offering significant cost savings while effectively controlling reflection cracks. A notable case study includes the Shanghai-Nanjing Expressway in China, where plastic geogrids were successfully utilized to address crack reflections during construction. Over a span of more than two decades, their reinforcing efficacy has been clearly demonstrated. As a result, plastic geogrids continue to be integrated into future road maintenance initiatives as a novel reinforcing solution that minimizes cracking in original road surfaces while enhancing surface strength.

The engineering advantages inherent to plastic geogrids render them an economically viable option characterized by robust performance. For inquiries about this material, please reach out to Shandong Dajin Plastic Industry Co., Ltd.