Tough, flexible and built for the long haul — see how EARTHLOK™ outperforms traditional erosion control solutions.
Consulting engineers trust EARTHLOK™ because it has been purpose-built to meet the technical demands of modern erosion control. From material selection to performance in the field, every component of the EARTHLOK™ system has been developed with a clear understanding of the challenges engineers face when specifying flexible concrete mats.
Thoughtfully Engineered Underlay Options
EARTHLOK™ offers underlay configurations tailored to suit different site and environmental requirements. Options include a biodegradable underlay that supports vegetation growth and biodiversity, ideal for natural rehabilitation zones, as well as a non-biodegradable, nonwoven geotextile that delivers long-term filtration and separation in permanent applications. These underlays are selected to enhance system performance and match the intended design life of the installation.
Critical Material Selection for Long-Term Integrity
A key consideration in specifying a flexible concrete mat system is the behaviour of the geogrid over time. The geogrid used in EARTHLOK™ is chemically inert and suitable for the function of a flexible concrete mat. Engineers who dig deeper into the material composition will appreciate the decisions behind its selection.
Reliable Concrete Quality for Uniform Performance
The concrete blocks that form the hard armour layer are manufactured to achieve a homogeneous profile with consistent quality across every mat. This ensures predictable behaviour under hydraulic load and throughout thermal cycling, reducing the risk of failure from material inconsistencies.
Standard Drawings are available for incorporating into Engineering Design. EARTHLOK™ is compliant and approved by many State Road Authority organisations and associated Design Specifications.
| General Composition of Materials | |
| Blocks | Concrete 60 MPA |
|---|---|
| Interlocking Geogrid | Flexible High Strength 60/60 kN Geogrid |
| Greenstar Rating | 3 Stars |
| Underlay Options | Vegetative (biodegradable) Non Vegetative (non-biodegradable) |
| Concrete Colour | Can be coloured as requested |
| Manufacturing Values | |
| Roll Width | 1.2m, 2.5m, 5.0m, Custom |
| Roll Length | 15m, 20m, 25m, Custom |
| Material Weight | 55kgs per Square Metre |
| Block Size | 165mm × 165mm × 60mm |
| Performance Design Criteria | |
| Expected Design Life | 50+ years Non Vegetative 100+ years Vegetative |
| Percentage Open Area | 20% |
| Ultimate Tensile Strength | ≥60 kN/m |
| Critical Flow Shear Stress for initiation of scour | ≥1.149 kpa |
| Maximum Flow Velocity | ≥5.79 m/s |
| Manning’s n | 0.05 |
When specifying a flexible concrete mat system, engineers must consider a range of performance criteria, including hydraulic stability, durability, structural integrity, flexibility, filtration, and environmental compatibility.
EARTHLOK™ has been meticulously developed to meet these benchmarks. Its interlocking concrete blocks provide robust hard-armour protection while allowing the mat to flex and conform to underlying terrain—reducing displacement risks under hydraulic loading.
The geogrid ensures structural cohesion, resisting differential movement, while the underlay options—biodegradable or nonwoven geotextile—support both separation and filtration functions.
With proven performance across various soil types, flow conditions, and environmental settings, EARTHLOK™ offers a reliable, high-performance solution tailored to real-world demands.
