What We Provide
Every document is written for engineers and specifiers — not sales material. Request any or all by email.
Product Datasheets
Technical data tables and cross-section drawings for Standard, Filter Point, and Vegetated grouted mattress. Includes thickness range (50–200 mm), material properties, and reference standards.
- All 3 product variants
- Thickness and weight tables
- GRI GT16 property summary
- Cross-section drawings
GRI GT16 Test Reports
Third-party laboratory test results from ISO 17025-accredited facilities. Batch-specific reports available on request for any project requiring traceable test data.
- Tensile strength (warp & weft)
- Seam integrity results
- Hydraulic conductivity
- UV resistance (500 hr)
Installation Guides
Step-by-step installation instructions covering site preparation, fabric layout, concrete mix design, pump specification, injection sequence, curing, and inspection checklist.
- Fabric layout and seaming
- Concrete mix design template
- Pump equipment selection
- Post-installation inspection
BOQ Templates
Bill of quantities item descriptions in FIDIC and NEC format - ready to insert directly into your specification documents. Includes measurement rules and provisional items.
- FIDIC-format items
- NEC-format items
- Measurement rules
- Provisional sums guidance
Design Assistance Notes
Application-specific notes reviewed by HydroBase engineers: thickness selection by flow velocity, anchor design, toe detail options, and mix design for site conditions.
- Velocity vs thickness chart
- Anchor detail options
- Toe and crest details
- Mix design by temperature
Specification Clauses
Ready-to-use specification clauses for grouted geotextile mattress suitable for inclusion in project specifications. Compatible with most national standards frameworks.
- Material specification clause
- Installation method clause
- Testing & acceptance criteria
- Inspection hold points
Grouted Mattress in Your BOQ — 4 Steps
Test Standards & Reference Documents
Primary product standard for grouted geotextile mattress systems. Specifies test methods and performance requirements for all material properties.
Wide-width strip tensile test method used to determine tensile strength and elongation of geotextile fabric components.
Test method for in-plane hydraulic conductivity and transmissivity of geotextiles under load.
Accreditation standard for the testing laboratories that perform our third-party batch tests. Ensures results are traceable and defensible.
Index puncture resistance test used to confirm the geotextile mould can withstand site handling and grout injection pressures.
Accelerated weathering test verifying product UV resistance for above-grade applications exposed to sunlight before grouting.
Common Specification Questions
What standard should I reference in my BOQ?
Reference GRI GT16 (Geosynthetic Research Institute Geotextile Test Method GT16) as the primary material standard. Our BOQ template includes the correct reference format for FIDIC and NEC specifications.
Are third-party test reports available for each batch?
Yes. We maintain batch-specific test reports from our ISO 17025-accredited testing lab. Batch reports can be requested for any order — they reference the specific production batch dispatched to your project.
Can you provide a mix design for the grout?
Yes. We provide a concrete mix design tailored to your pump equipment, aggregate availability, and ambient temperature. This is included in our engineering support at no extra cost.
Do your documents work for EU-funded projects?
Yes. Our test reports reference ASTM test methods which are accepted under EU technical approval frameworks for geosynthetics. For projects requiring specific CE mark documentation, contact us and we will advise on a case-by-case basis.
How quickly can you return the document package?
Standard document package (datasheet + test report + installation guide + BOQ template) is returned within 24 hours of email request to james@concretemattress.com.
Can you provide a design review for my project?
Yes — for qualified orders our engineers will review your hydraulic data and confirm the mattress specification, including product type, thickness, anchor details, and concrete mix design. This is provided free of charge.
What to Send Us
To return the right specification for your project, it helps to know the following. You don't need to have all of these — send what you have and we'll ask for anything critical that's missing.
