Study On The Mechanical Properties Of The Reinforced Concrete Compressive Members With Lithium Slag After The Simulated Acid Rain Corrosion

With the vigorous development of the industry in our country,it produce a large amount of industrial waste residue and tailings,so a large number of a wide variety of industrial waste residue and tailings,if we not make effective use of it,not only takes up a large number of cultivated land,but also cause serious environmental pollution,and waste of resources in the same time.Therefore,how to more effectively use industrial slag and tailings,protect the environment,is a very urgent task.The activity of lithium salt slag is better than that of fly ash,it is the rare highly active quality of concrete admixtures.At present,lithium slag has not yet been recycling use,how to effectively utilize the slag and reduce environmental pollution,is an important part of sustainable circular economy.At home and abroad,there are a lot of research results show that the lithium slag can be as admixture,to the preparation of concrete,and has the good economic and environmental benefits.This paper takes the lithium slag reinforced concrete basic compression member as the research object,proposed use the indoor accelerated corrosion test and theory analysis combining comprehensive research methods,mainly studies the basic mechanics performance of the rc compression members with lithium slag and components in simulated acid rain corrosion environment,such as the degradation rule of working performance,the component relationship between bearing capacity and corrosion damage degree.Provide theoretical basis and experimental basis for the improvement of the service life in the environment of acid rain and the engineering structure in the regeneration and utilization of the industrial waste.1.Through the cube compressive strength test,study different dosage of lithium slag lithium slag concrete compressive strength,get the best dosage.2.To study the different mixing amount(0%,10%,15%,20%),with different reinforcement,lithium slag reinforced concrete axial compression performance;and in the same reinforcement.optimum dosage(15%),axial compression performance of component in different acid rain corrosion cycle(60d,90 d,120d,150d).3.The study of different mixing amount(0%,10%,15%,20%),different eccentricity cases,eccentric compression performance of lithium slag reinforced concrete;and in the same kind of reinforcement,and the most suitable dosage(15%),the eccentric pressure variation properties of component in different acid rain corrosion cycle(90d and 120 d,150d),.4.By the comparison between test results and the calculate results which use existing specifications formula to calculate,it is concluded that the existing lithium slag reinforced concrete axial compression in the specifications of the formula and the ultimate bearing capacity under bias load is feasible,the results be safe,have enough safety reserve.