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- W639853985 abstract "The design of road embankments and bridges necessitates knowledge of stability and settlement problems. Loads must be adapted to soil properties. Heavy masses can be replaced by lightweight fill. Foamed concrete (FC) is a porous material of 0.4-1.6 t/m3. It consists of cement, water and foam. Foamed plastics pellets are sometimes added to reduce density. The material flows easily, is stable and durable and is easily dug. It needs no vibration. Its compressive strength is ca 1 MPa and its E modulus ca 1000 MPa. It has good thermal insulation capacity, although not as good as expanded plastics. In practical application in road projects it has been found competitive. By building embankments with FC instead of conventional fill, the load on the subgrade is substantially reduced. It can be poured directly into the bottom of the excavation on top of plastic sheeting. The highest stress on the subgrade occurs below the centre of carriageway if there is settlement. Horizontal pressure in retaining structures can be reduced by using FC. Embankments can be made of FC. Pipes and pipe culverts can be surrounded by FC. Damage to structures due to frost heave be alleviated by using FC as insulation. For the covering abstract of the conference see IRRD 890911." @default.
- W639853985 created "2016-06-24" @default.
- W639853985 creator A5050572816 @default.
- W639853985 date "1994-01-01" @default.
- W639853985 modified "2023-09-27" @default.
- W639853985 title "FOAMED CONCRETE AS LIGHTWEIGHT FILL" @default.
- W639853985 hasPublicationYear "1994" @default.
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