Study On Mechanical Properties Of Reprocess Foamed Ceramic Stiffened Wallboard

The main raw materials of recycled foam ceramic stiffening wallboard are ceramic scrap and waste porcelain tailing,which are fired by high temperature,and reinforced by adding rebar to the ceramic wallboard in low temperature condition to improve the structure strength of the plate,and then realize the energy-saving integration of the wallboard.The new wall Board can digest and use a large amount of solid waste,effectively improve the external wall insulation effect of the building,have excellent economic effect and energy saving and environmental protection effect,it is worth further research and promotion.Now the wall materials are mainly used in a variety of concrete blocks and sintered hollow bricks,which are mainly composed of clay,cement,sand,stone and other materials,resulting in a large number of environmental pollution and waste of resources.Moreover,the construction technology of masonry consumes a lot of manual and on-site operation time,and the quality is difficult to guarantee.And for many new wall,the current integration of the wall has many problems,although some of the wall to achieve the factory production,but still can not avoid large-scale wet operation on site,and the process is very complex,large-scale promotion caused a very large obstacle.Therefore,the development of new light and high strength,environmental protection and energy-saving wall materials to become the future direction of building development.From the angle of building energy saving and environmental protection,the application of foam ceramics in building materials and other aspects has been widely used since 21 st century.This material has light,high strength,heat-resisting,waterproof seepage Concrete,such as good compatibility,such as excellent comprehensive performance.The subject of the use of Zibo Yong-Xu Refractories Co.,Ltd.produced by the regeneration of new high-strength foam ceramics,this kind of foam ceramic peak stress can reach 9.08 MPa,much higher than the same foam ceramic 2-3mpa peak stress.In this paper,the mechanical properties of recycled foamed ceramic stiffened wallboard specimens are studied by using the finite element software Ansys.Nine different reinforcement forms,aspect ratio,on the basis of the finite element model of the recycled foam ceramic stiffened wallboard with ribbed condition and open cavity,the vertical load analysis and the low cycle cyclic loading test simulation of the wall are carried out,and the changes of the seismic behavior of the wall plate and the open hole are studied.The seismic performance of the wall slab with different sections is compared,such as the vertical bearing capacity,the deformation,ductility and energy dissipation capacity of the wallboard.The experimental results show that: compared with rib-free wallboard,ribbed wall slab the vertical bearing capacity increased by 159.9% in the case of an increase of 7.41% in volume,so adding rib to the foam ceramic insulation structure plate can effectively improve the bearing capacity,Increasing the reinforcement ratio can improve the load-bearing capacity of the wall in a certain range;the lateral load peak of the ribbed wall increases by 17.3%,and the maximum lateral displacement is increased by 6.04%,under the action of low cycle cyclic loading and unloading.It shows that the wall can increase the lateral bearing capacity of the wall,to a certain extent,the lateral deformation ability of the wall is improved;The wall from cracking to destroying with the increasing of displacement,the area of hysteresis loop is increasing,the viscous damping coefficient is also increasing,and the ribbed wall in different stress stage,The equivalent viscous damping coefficient of the failure state is greatly improved for the same non rib wall with other parameters.The stiffened wall can not only improve the stiffness of the wall,but also improve the energy dissipation capacity of the wall,and improve the seismic performance of the wall.Before reaching the limit state,the equivalent viscous coefficient of the higher wall is slightly elevated.Reducing the wall height can effectively increase the stiffness,in the initial loading can also improve the wall of the equivalent viscosity coefficient,but with the increase in loading,the wall deformation performance gap gradually showed,the lower wall of the equivalent viscosity coefficient is lower than the higher wall,seismic performance has been reduced.At the end of the paper,the author discusses the new wall board which deserves improvement and further refinement,and puts forward some suggestions on the application of the wallboard in the practical project,and gives the directional guidance for the popularization of the wall board in the market.