150 hectares of own products
Increased efficiency with unique machinery
More than 55 years of experience
Environmentally conscious entrepreneurship

Fascine mattress / crib

Extensive experience

Fascine mattresses are made up of wedges. These are bundles of twisted willow wood, which are tied into mats with biodegradable lashing rope. They have been used for over 100 years to protect soils and banks against erosion by water. In road construction they prevent subsidence. Fascine mattresses can also be made with plastic cloth: geotextile or bentonite.

Van Aalsburg BV has knowledge and experience for the traditional manufacture of all types of constructions: Fascine mattress for bottom protection and crib for bank protection.

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or call +31 (0)418 58 12 29
Fascine Mattress

Extensive experience

  • 750,000 m² of fascine mattresses installed per year
  • From design phase to delivery
  • Accurate sinking using a sinking beam aided by GPS
  • More than 50 years’ experience

Different types of fascine mattresses

Fascine mattresses (Classic)

A classic fascine mattress is a mat made exclusively from bundles of willow branches (known as faggots). Without the use of synthetic fabrics and therefore very sustainable.
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fascine matresses

Fascine mattresses with bentonite

Bentonite is a type of natural sodium clay containing particles that are so small that they can stem the water flow in rivers and streams.
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Fascine mattresses with geotextile

Fascine mattress with geotextile often contain less faggots than classic fascine mattresses. They are indestructible.
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Framework

Classic fascine mattresses are often big and enormously heavy. That is why they are made on pipes, which enables them to slide smoothly and undamaged into the water. A tugboat or crane ship can move the fascine mattress to the desired location with tow lines.

First of all, a framework of faggots is constructed for the first layer, and then a second layer at right angles to the first. Each intersection is secured with lashing rope, which also forms the basis for further tying the brushwood to the fascine mattress. The lashing rope contains sisal-polypropylene which tightens when wet.

fascine matresses

Sustainability and environmental friendliness

Next, brushwood bundles are evenly distributed between the top layer of faggots to a thickness of 10 to 15 cm. A second layer of brushwood is placed on top of these, at right angles to the first layer. The customer determines the thickness of the faggots and the layer of brushwood. The customer could be: Rijkswaterstaat (Directorate-General for Public Works and Water Management), a municipality or a contractor.

More information
or call +31 (0)418 58 12 29

Frequently Asked Questions

What is the purpose of a fascine mattress?

Fascine mattresses protect embankments and riverbeds from erosion.

What is a fascine mattress made from?

Fascine mattresses are made from faggots (bundles of willow branches), sometimes combined with geotextile or bentonite. They are sunk by dumping basalt rocks onto them.

How do you sink a fascine mattress?

The fascine mattress is attached to a float. A crane boat tows the float to the destination. The top end of the fascine mattress is sunk using a sinking beam and the rest by dumping rocks onto it.

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