Frequently Asked Questions

Geotextiles are fabric layers designed for filtration, separation, and drainage in soil applications. Geogrids are three-dimensional grid structures engineered specifically for load support and soil reinforcement in roads and retaining walls. Choose geotextiles when you need to prevent soil mixing or manage water flow, and geogrids when structural reinforcement is required.

Geocell systems provide three-dimensional soil confinement that improves load distribution and prevents material movement, making them ideal for slopes under load or channel stabilization. Traditional erosion control matting focuses on surface protection and vegetation support without structural reinforcement. Projects involving vehicle traffic, heavy loads, or steep slopes with stability concerns benefit from geocell confinement.

Turf Reinforcement Matting (TRM) incorporates permanent synthetic fibers that remain functional after vegetation establishes, providing long-term reinforcement against high-velocity water flow. Standard erosion control matting degrades as vegetation takes over and works primarily during the establishment phase. TRM is specified for channels, slopes, and areas with sustained hydraulic stress.

Every project involves different material volumes, roll sizes, weights, and delivery distances that affect shipping costs significantly. Geosynthetics ship on flatbeds or specialized carriers depending on product type and quantity. Destinations range from urban job sites to remote pipeline locations, each requiring tailored logistics coordination to match construction schedules.

Soil particle size, water flow rates, and load conditions determine which geotextile specification performs correctly. Finer soils require tighter fabric openings to prevent clogging, while high-flow applications need greater permeability. The fabric must also withstand installation stresses and long-term loading without tearing or excessive elongation.

Clay soils in Shreveport expand when wet and shrink during dry periods, creating surface cracking and slope movement. This movement requires erosion control materials with flexibility and reinforcement capacity beyond what sandy soils demand. Products must accommodate soil volume changes while maintaining surface protection and supporting vegetation through wet-dry cycles common to the region.

The subgrade must be graded to proper elevation and compacted to specified density before geogrid placement. Any soft spots or organic material requires removal, as geogrid reinforces stable soil but doesn't correct poor foundation conditions. Proper overlap and anchoring prevent shifting during aggregate placement and compaction operations.

Hydromulch application depends on temperature, moisture, and anticipated rainfall rather than strict seasonal limits. Avoid application when ground is frozen, saturated, or when heavy rain is forecast within 24 hours. Louisiana's mild winters allow year-round seeding and mulching, but summer heat requires irrigation planning to support seed germination and mulch bonding.

Support includes reviewing project specifications, soil conditions, and performance requirements to recommend appropriate geosynthetic types and grades. This involves matching manufacturer product data to engineering requirements and identifying suitable alternatives when specs allow flexibility. The goal is ensuring specified materials perform as intended without over-specifying beyond project needs.

Materials are ordered once project specs and delivery schedules are confirmed, then shipped to align with construction phases and right-of-way access. This prevents on-site storage issues and ensures products arrive when crews are ready to install. Delivery coordinates with multiple spreads or phased construction across long corridor projects spanning multiple states.

Wall height, soil type, and surcharge loads determine required geogrid tensile strength and spacing between layers. Underspecified geogrid allows excessive wall movement or failure under load, while overspecification increases cost without performance benefit. Engineering calculations factor in soil friction, wall batter, and long-term load conditions to specify appropriate grid strength.

Cellular confinement restricts lateral aggregate movement under load, increasing the effective stiffness of the base material. This confinement reduces the thickness of aggregate required to support a given load compared to unconfined placement. The result is lower material costs and improved performance on soft subgrades where deep aggregate bases would otherwise be needed.