EABASSOC LIGHTWEIGHT FOAMED CONCRETE for Roads and Geotechnical Applications

EABASSOC

LIGHTWEIGHTFOAMED CONCRETE

forRoads and Geotechnical Applications

EABASSOCLIGHTWEIGHT FOAMED CONCRETE

• Made from Sand, Cement, Water & Foam

• Dry Densities from 400 to 1600 kg/m3

• Compressive Strengths from 1 to 15 MPa

• Mix Designs chosen to optimise density, strength and cost

Advantages of Foamed Concrete• Lightweight...does not impose large loadings• Does not settle• Free flowing• Enables Fast Work• Excellent load spreading characteristics• Reliable quality control• Once placed requires no maintenance• Low water absorption over time• Resistance to freeze-thaw cycle• Non-Hazardous

Typical Uses for Roads

• Trench Reinstatement

• Road Widening (Sub-Base)

• Road Building on Soft Ground (Sub-Base)

• Road Repairs

• Bridges over Drainage Channels

Road Widening

Road Sub-Base

Principle of Roads on Soft Ground

Soft GroundSoft Ground = X kg Soft Ground

Soft Ground Soft Ground

Wearing Course = Y kg

Foamed Concrete Road Base = Z kg

Y X+ Z =

Road on Soft Ground - example

0.12m

0.40m

Density of road = 1050 kg/m3

Concrete

Foamed Concrete

Peat

Density (kg/m3)

2400

650

1200

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Bridges over Drainage Channels

Bridges over Drainage Channels

Bridges over Drainage Channels

Bridges over Drainage Channels

Geotechnical Applications

• Landslide Repair

• Soil Stabilisation

• Bridge Abutments (on soft ground)

• Emergency Void Filling

• Mine Fill

• Land Reclamation

• Tunnelling

Landslide RepairNagano Expressway, Japan

Retaining WallWall (8m)

Hillside

A = 0.4mB = 0.3m

27 m

New PlanFoamed Concrete 650 kg/m3

Original PlanTraditional Materials

80m x 50m x 9mLandslip

A = Road Surface LayerB = Basecourse

Terraces

Hillside Stabilisation

Hillside Stabilisation

Hillside Stabilisation

Hillside Stabilisation

Cathedral at Gniezno, Poland

Cathedral at Gniezno, Poland

Cathedral at Gniezno, Poland

Cathedral at Gniezno, Poland

Foamed Concrete Mix Design

sand : cement : water

1.4 : 1 : 0.6

Dry density 900 kg/m3

Bridge Abutment

Bridge Abutment

Emergency Void Fill, Heathrow

Mine Fill

EABASSOCLIGHTWEIGHT FOAMED CONCRETE

• Made from Sand, Cement, Water & Foam• Dry Densities from 400 to 1600 kg/m3

• Compressive Strengths from 1 to 15 MPa

• Road Widening, Sub-Bases, Repairs• Soft Ground• Ground Stabilisation• Emergency and Planned Void Filling