GeoFoam - Geotechnical Expanded Polystyrene

Dyplast GeoFoam refers to large rigid cellular EPS blocks used in Geotechnical engineering applications. EPS GeoFoam has very low density compared to soil, cement, or rock, good insulation, low hydraulic conductivity, as well as strength and deformation properties that complement soil behavior. GeoFoam has a wide variety of benefits. GeoFoam accelerates construction, expands possible solutions for difficult soil problems, has excellent load distribution characteristics, and reduces construction costs. Uses include bridge construction, highway construction, landscaping, parking structures, airport runways, earthen dams, and load control on buried pipes. Dyplast Products can provide material in blocks up to 20' long, 48' wide, and 40' thick to maximize the construction process.

GeoFoam has been tested by and independent laboratory (RADCO Report No. RAD-4826) to meet the compressive resistance requirements of ASTM D6817. 

Also, read our GeoFoam Case Study regarding the Sharpes Ferry Bridge Projec in Florida.

GeoFoam has many different applications. The main applications are:

Slope Stabilization Geotechnical engineers have long recognized the utility of lightweight fill to reduce mass and associated gravitational driving forces. EPS GeoFoam is up to 50 times less massive than other lightweight fills.

Embankments GeoFoam embankments do not require pre-loading and removal normally associated with embankment construction on soft ground. Side slopes at 2:1 or even in vertical finish can be developed because GeoFoam imposes very light loads on the foundation.

Retaining Structures Placement of GeoFoam behind retaining structures and below grade wall can offer advantages of reduced lateral pressure, lower settlements, improved waterproofing, and better insulation.

Utility Protection GeoFoam has been used to control loading on rigid buried pipes by development of an induced trench condition.

Pavement Insulation The design of highway or airport pavements may be governed by subgrade stress/deformation criteria or frost heave protection requirements.

Shallow Foundations The use of GeoFoam allows construction of buildings with frost protected shallow foundations.

Landscape Design The use of GeoFoam expedites the design and construction of decorative formations without adding weight.