Laserfiche WebLink
EPS Geofoam 2001,3rd International Conference, Salt Lake City,December 2001 6 <br /> DEFORMATION AND CREEP EFFECTS IN EPS STRUCTURES <br /> Both full scale and laboratory tests have been performed related to material creep and stress distribution in the <br /> material.In general only about 30%of the material strength is utilised for supporting dead loads,i.e.qaa,<30 kPa <br /> for normal strength blocks(a=100 kPa).In some special cases higher stress related to dead loads have been used. <br /> {r� <br /> 3 <br /> G <br /> A 3? Y <br /> EE€ Orn <br /> Profile A A 10,5 t <br /> zx s <br /> 2mRn <br /> Earth pressure cells <br /> Figure 8.EPS test fill at the Norwegian Road Research Laboratory(now the Road Technology Department). <br /> In a laboratory test at the Norwegian Road <br /> Research Laboratory(now the Road <br /> Technology Department)a test fill of height 2 m <br /> & ' , <br /> with normal size blocks and a compressive SOD air A �`� <br /> strength 6=100 kPa has been loaded to a valuea <br /> a #� <br /> of q"=52.5 kPa and the resulting deformations �� � 9 <br /> observed over a period of 3 ears(figure �� t � €a <br /> p Y 8).The <br /> results are shown in fig.9 together withii, 3 <br /> calculated deformations to be expectedAll <br /> k3 <br /> according to the theories introduced by Magnan 3 <br /> &Serratrice. s <br /> k i Y � <br /> As may be seen the observed deformations are 0 <br /> was <br /> only about half of the calculated values and <br /> i �3�' E <br /> creep deformations with time are also much � <br /> smaller. <br /> Figure 9.Deformation/creep in the test fill <br /> Full scale test at Lokkeberg bridge founded on two EPS embankments.Long term monitoring of deformation, <br /> creep and stress distribution. <br /> Long term performance and durability of EPS as a lightweight filling material <br />