Geostrap

PTT GEOSTRAPS

High-Performance Soil Reinforcement Straps for MSE & Retaining Wall Systems

PTT Geostraps from Prime Terratech are advanced polymer-encased polyester soil reinforcement straps engineered for long-term durability and exceptional pullout performance in Mechanically Stabilized Earth (MSE) Walls, retaining structures, and reinforced soil applications.

Each geostrap consists of high-tenacity polyester filament yarn tendons—the primary load-bearing elements—encased in a protective linear low-density polyethylene (LLDPE) sheath. This structure combines strength, flexibility, and superior resistance to environmental exposure, making PTT Geostraps one of the most reliable reinforcement systems in modern infrastructure.

Details
Features
Benefits
Specification
Application
FAQ's

Product Details

PTT Geostrap is a high-performance Geosynthetic Polyester Strap engineered for durable soil reinforcement in MSE walls, retaining structures, and embankments. This advanced Polymeric Geostrip is manufactured using high-tenacity polyester yarn tendons encased in a protective LLDPE sheath, ensuring excellent tensile strength, low creep, and long-term stability. Designed to perform in demanding site conditions, the strap offers superior pullout resistance, UV and chemical protection, and reliable interaction with various soil types. Prime Terratech’s Geostrap system provides long service life, easy installation, and proven compatibility with precast panels, wire mesh, and block facings, making it ideal for modern reinforced soil applications.

According to the yarn tendons are designed with high tensile strength, low creep, and high molecular weight (>25,000 g/mol) for superior long-term stability. The outer sheath provides protection against UV radiation, chemical degradation, installation damage, and environmental factors.

Why Prime Terratech?

Prime Terratech is a leading manufacturer of geosynthetics solutions with advanced testing capabilities, quality-controlled manufacturing, and customer-centric engineering support. Our PTT Geostraps are engineered to meet global standards for reinforced soil structures, delivering consistent performance and long-term dependability.

Features

High-Tenacity Polyester Core

Constructed using closely packed, tensioned bundles of high-tenacity polyester yarns
Provides high tensile strength and modulus
Low creep ensures long-term performance under sustained loads

Protective LLDPE Sheath

Custom-formulated polyethylene coating
Resistant to UV exposure, chemicals, and biological degradation
Ensures excellent frictional interaction with fill material for maximum pullout resistance

Exceptional Durability

Tested for 120-year design life as indicated in the specification table
Withstands physical, chemical, and biological conditions typically present in reinforced soil systems

Optimized Mechanical Performance

Wide range of tensile capacities from 30 kN to 100 kN
Controlled elongation at break (12%) ensures stability and safety
High dimensional stability for installation across varying site conditions

Benefits

Superior reinforcement performance for high-load retaining structures
Long service life (120 years) as documented in technical data
Exceptional safety margins due to strict reduction factors
Compatibility with multiple wall facings including precast, wire mesh, and block systems
Easy installation due to smooth, flexible polyethylene-sheathed design
Proven performance in diverse soil conditions

Specification

PTT Geostrap Tensile Grades & Colour Coding

As per the colour coding each geostrap capacity is factory colour-marked for easy on-site identification:

Tensile Strength	Colour
30 kN	White
40 kN	Red
50 kN	Brown
60 kN	Green
75 kN	Orange
85 kN	Blue
100 kN	Yellow

Technical Specifications:

Ultimate Tensile Strength (kN)

30, 40, 50, 60, 75, 85, 100

Elongation at Break

Reduction Factors

Durability (RFd): 1.21
Installation Damage (RFid): 1.05
Creep (RFcr): 1.43
Combined Reduction Factor: 1.817

Long-Term Design Strength (LTDS)

30 kN grade → 41.27 kN
40 kN grade → 55.04 kN
50 kN grade → 68.80 kN
60 kN grade → 82.56 kN
75 kN grade → 103.20 kN
85 kN grade → 116.96 kN
100 kN grade → 137.58 kN

Geostrap Dimensions

Width: 85 mm (30–60 kN), 90 mm (75–100 kN)
Thickness: 1.9–2.2 mm
Roll Length: 100 m

Environmental Conditions

pH resistance: 4.0 to 9.0
Coefficient of interaction (ci): 0.80–0.93

Application

PTT Geostraps are ideal for:

Mechanically Stabilized Earth (MSE) walls
Reinforced soil retaining walls
Approach ramps for bridges & flyovers
Highway & embankment reinforcement
Vertical & near-vertical wall systems
Reinforced soil slopes
Welded wire mesh & precast panel facings

FAQ's

Q1: What is a Geostrap?
A: A Geostrap is a high-strength Geosynthetic Polyester Strap used for soil reinforcement in MSE walls, retaining structures, and embankments.

Q2: How does a Geostrap function in reinforced soil structures?
A: It provides tensile reinforcement by absorbing lateral forces, increasing soil stability, and enabling construction of steep and vertical walls.

Q3: What materials are used in Prime Terratech Geostraps?
A: They are made from high-tenacity polyester yarn tendons encased in a durable LLDPE protective sheath.

Q4: What are the advantages of using Geostrap over other reinforcement options?
A: Geostraps offer high tensile strength, low creep, long design life (up to 120 years), excellent pullout resistance, and easy installation.

Q5: Where are Geostraps typically installed?
A: They are ideal for MSE walls, highway embankments, bridge approaches, reinforced soil slopes, and precast or wire mesh wall facings.

Geostrap

Geostrap

Product Details

Features

Benefits

Specification

Application

FAQ's

Quick Enquiry