Mechanical behavior of cement-emulsified asphalt concrete in bridge deck pavement structure
LU Yan-hua
YANG Lu
XU Yan
ZHU Fu-sheng
Abstract：In order to reduce the various damages of bridge deck pavement during the operation process,the cement-emulsified asphalt concrete was applied at the lower layer of bridge deck pavement to replace the waterproof adhesive layer,and the applicability of cement-emulsified asphalt concrete was studied. With the finite element analysis method,the mechanical behavior of bridge deck structure layer was simulated through changing the thickness of structure layer. The results show that when the thickness of cement-emulsified asphalt structure layer increases, the shear stress between the layers decreases. Especially, the shear stress between the cement-emulsified asphalt layer and the bridge deck obviously decreases, and the compressive stress subjected by the layer itself also decreases. When the thickness of the layer increases to more than 3 cm,the descending range of shear stress between both upper and lower layers begins to slow down. Through the study on the mechanical behavior characteristics of new bridge deck pavement structure, it is proved that the proposed material is suitable for the medium and small concrete bridges.
Keywords：cement-emulsified asphalt concretebridge deck pavementmechanical analysisnumerical simulationstructure layerstressshear stresswaterproof adhesive layer
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 345-351 )