HydroBase – Grouted Mattress Manufacturer
Completed articulated concrete mattress (ACM) canal lining - concrete erosion control mat in service
Also known as: GGFM - Grouted Mattress - Fabric Formed Concrete

Articulated Concrete Mattress Manufacturer

GRI GT16-compliant. Third-party test reports with every shipment. Installs without dewatering above or below water. 50-200 mm. Factory-direct from China - 48-hour dispatch.

Third-party GRI GT16 test reports - ISO 17025 lab - BOQ template included with every order

150+
Production Lines
40,000 m2
Per Day Output
230+
Installations Worldwide
GRI GT16
Quality Standard

Quick Answer

Articulated concrete mattress (ACM) is the same product as grouted mattress, GGFM (Geotextile Grout-Filled Mattress), and fabric formed concrete. The name varies by region and specification standard — ACM is common in North America and Australia; GGFM is used in the GRI GT16 standard; "grouted mattress" is standard in the UK and Asia. All refer to a two-layer woven polypropylene geotextile filled with cement grout in situ. HydroBase manufactures all three configurations (Standard, Filter Point, Vegetated) to GRI GT16 from our Inner Mongolia factory — 48-hour dispatch, factory-direct to 30+ countries.

Terminology Note

Articulated concrete mattress (ACM), grouted mattress, GGFM, geotextile grout-filled mattress, and fabric formed concrete all describe the same product. The terminology varies by region and specification standard — ACM is common in North America and Australia; GGFM is used in GRI GT16; "grouted mattress" is standard in the UK and Asia. HydroBase manufactures all three variants (Standard, Filter Point, Vegetated) under the GRI GT16 standard, regardless of which name appears in your specification.

What Is ACM

What Is an Articulated Concrete Mattress?

An articulated concrete mattress is a flexible erosion protection system made from two layers of woven polypropylene geotextile stitched into a grid of cells. The fabric is laid flat on the surface to be protected, then filled with cement grout pumped through injection ports. When cured, the result is a continuous array of concrete cells that can flex and articulate with the underlying surface.

The "articulated" name refers to this flexibility — unlike a rigid concrete slab, the mattress conforms to settlement, scour voids, and irregular bank profiles. Individual cells hinge relative to each other, distributing load and maintaining contact with the substrate across the entire surface area.

The system installs without dewatering, without formwork, and without specialist equipment beyond a standard concrete pump truck. This makes it significantly faster and cheaper than conventional poured concrete protection on most site configurations.

Articulated concrete mattress fabric — woven geotextile cell structure for fabric formed concrete erosion control
Terminology

The Same Product — Many Names

Different regions and standards use different names. HydroBase products meet the specification regardless of the term used in your project documents.

ACM
Articulated Concrete Mattress
Regions: North America, Australia, Middle East
Standard: ASTM, AS
GGFM
Geotextile Grout-Filled Mattress
Regions: International
Standard: GRI GT16
GM
Grouted Mattress
Regions: UK, Asia, Africa
Standard: CIRIA C742
FFC
Fabric Formed Concrete
Regions: North America, Europe
Standard: ACI
GGM
Grouted Geotextile Mattress
Regions: Europe
Standard: EN 13251
CCM
Concrete Canvas Mattress
Regions: Emerging usage
Standard: Various
Product Range

Three ACM Variants

HydroBase manufactures three configurations of articulated concrete mattress, each designed for a specific site condition.

Standard ACM fabric texture
Most Common

Standard ACM

Fully impermeable. Used for canal lining, slope protection, river bank revetment, and bridge pier scour. Available 75–200 mm. The standard specification in most project documents.

  • 75–200 mm thickness
  • Up to 6.0 m/s flow rated
  • 0% cell void ratio
  • Manning's n ≈ 0.013–.016
Filter Point ACM fabric texture
Tidal / Artesian Sites

Filter Point ACM

Drainage openings at cell intersections relieve hydrostatic uplift. Required for coastal revetment, tidal embankments, flood retention banks, and artesian sites.

  • 75–200 mm thickness
  • Filter ports at cell nodes
  • Tidal uplift rated
  • Same GRI GT16 compliance
Vegetated ACM fabric texture
Ecological Applications

Vegetated ACM

Open-cell fabric allows vegetation to establish through the cured concrete matrix. Used for ecological slope protection on highway embankments and river corridors.

  • 100–200 mm thickness
  • 15–20% open cell ratio
  • Vegetation establishment
  • Full structural rating
Why HydroBase

Why Source ACM from HydroBase?

GRI GT16 Certified

All production meets or exceeds every GRI GT16 minimum value. ISO 17025-accredited third-party lab test certificates provided per batch.

48-Hour Dispatch

Stock sizes dispatched within 48 hours of order confirmation. Custom panel sizes in 5-7 working days. FOB Tianjin Port or CIF worldwide.

Full Product Range

Standard, filter point, and vegetated ACM from one manufacturer. Consistent fabric spec, single quality system, one contact.

30+ Countries

230+ completed installations across Asia, Africa, Middle East, and Southeast Asia. Experienced in export documentation, phytosanitary, and destination-port requirements.

Engineering Support

Free hydraulic design review, thickness selection, GRI GT16 specification clauses, and BOQ templates on every qualified order. 48-hour response.

Full Documentation

Product datasheets, GRI GT16 test reports, installation guides, BOQ templates, and NEC/FIDIC specification clauses. All in English.

FAQ

Engineers Ask Before Specifying

Is articulated concrete mattress the same as grouted mattress?+
Yes - ACM, grouted mattress, GGFM (Geotextile Grout-Filled Mattress), and fabric formed concrete all refer to the same product family. The term varies by region and standard. HydroBase manufactures to GRI GT16, which uses GGFM. North American specs say ACM; UK and international contracts say grouted mattress.
Does your ACM comply with GRI GT16?+
Yes. Third-party test reports from an ISO 17025-accredited laboratory are included with every shipment, covering tensile strength, CBR puncture resistance, permittivity, and apparent opening size versus the GRI GT16 minimum acceptance values.
What thicknesses are available?+
50, 75, 100, 125, 150, and 200 mm. Thickness is selected based on design flow velocity, slope angle, and hydraulic loading. Our engineers provide a free thickness recommendation from your site parameters.
Can it be installed without dewatering?+
Yes. The geotextile fabric is placed in live flow, then filled with cement grout through injection ports using a standard pump truck. No cofferdam or flow diversion is required. We have placed in velocities up to 2 m/s during installation.
What panel sizes do you supply?+
Up to 6 m wide and 30 m long. Custom dimensions to fit your section or slope geometry are fabricated within the 48-hour dispatch window at no extra cost.
Is there a minimum order quantity?+
No. We supply single replacement panels through to multi-million m2 national programmes. Contact us with your project area for unit pricing.
Do you supply the grout?+
No. Grout is batched on-site (OPC, w/c 0.45-0.50, 10 mm aggregate, standard pump truck). We include the mix design specification, grout schedule, and pump setup guide with every order.
How long does delivery take?+
48-hour dispatch from Inner Mongolia. Sea freight: Southeast Asia 5-12 days, Middle East 18-25 days, East Africa 20-28 days, Europe 28-35 days. Air freight available for urgent quantities.

Related Reading

Fabric Formed Concrete

How geotextile fabric formwork works — types, grout mix, and project applications.

Concrete Erosion Control Mats

ACB mats vs grouted mattress vs GCCM — comparison table and selection guide.

Grouted Mattress Technical Guide

Complete guide to GGFM: fabric variants, thickness selection, GRI GT16 standard.

Request a Quote for Articulated Concrete Mattress

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