Study On The Influence Of Complex Environment On The Performance Of Glass Concrete

At present,the demand for glass products in daily life is increasing,which has led to an increasing proportion of the glass industry in my country’s industrial production.The number of glass products that are eliminated due to breaking and other factors in daily use is increasing,and the environmental pollution caused by waste glass is gradually emerging.Therefore,domestic and foreign researchers have conducted extensive research on how to recycle waste glass.After research,it is found that glass material has excellent durability and light weight.It can be improved in certain aspects when mixed with concrete in a certain proportion.This conclusion has been recognized by the industry.At the same time,the complex natural environment affects concrete buildings all the time,such as freeze-thaw damage caused by cold weather,and industrial waste gas discharged into the atmosphere to form acid-base salt corrosion caused by acid rain.After a long time of action,these complex environments cause different degrees of damage to concrete components,and the serious degree may even affect the durability.Therefore,it is of great significance to study the influence of these complex environments on the durability of concrete.Nowadays,scholars at home and abroad have made extensive researches on the durability of glass concrete materials,but most of the damage conditions studied are relatively single,or two or three damage conditions are simply superimposed,and the impact of carbon dioxide on concrete members is often ignored.Therefore,this article has made supplementary research on the anti-carbonization performance of glass concrete materials under complex damage conditions.First determine the complex damage conditions: single freeze-thaw cycle,single dry-wet cycle,freeze-thaw-dry-wet cycle,dry-wet-freeze-thaw cycle,and coupled cycle.Secondly,determine the cubic compressive strength,quality change rate,The carbonization depth is measured and the law is analyzed,and finally the cubic compressive strength and mass change rate are used as the influencing parameters to fit,and the existing carbonization formula model is revised.The results of this paper are as follows:(1)Compared with ordinary concrete,glass concrete is more susceptible to the effects of freeze-thaw cycles,dry-wet cycles,and freeze-thaw cycles will reduce the mechanical properties and carbonization resistance of glass concrete in certain aspects.Circulation can improve the mechanical properties and carbonization resistance of glass concrete to a certain extent.(2)The degree of damage caused by freeze-thaw-dry-wet cycles to glass concrete is greater than that caused by a single freeze-thaw cycle and a single dry-wet cycle,and the damage methods are mainly freeze-thaw damage,supplemented by dry-wet erosion.The research also found that the freeze-thaw cycle and the dry-wet cycle in freeze-thaw-dry-wet cycle damage are not simply superimposed,but a super-superimposed damage method.(3)The coupling cycle has a serious impact on glass concrete.As the coupling cycle progresses,the compressive strength and carbonization resistance of glass concrete will decrease significantly,and the quality loss rate will continue to increase.When the number of coupling cycles is too high,it will seriously affect the normal durability of glass concrete.