Research On The Experiment Of The Performance Of Alkali Glass-fiber

Ferroconcrete is a kind of composite material of reinforcing steel bars andconcrete, it takes full advantage of the merit of the good tractility of reinforcing steelbar and the good anti-press performance of concrete, which is applied in civilengineering comprehensively.Because of the disadvantages of inevitable crackles in existence and so on inconcrete, as time getting longer, rust-corrode phenomena will occur in the reinforcingsteel bars in concrete, which affects the intensity and endurance of structure directly,lots of fund has been cost for solving the rust-corrode problem of reinforcing steel bar.Researches on the rust- corrode problem of reinforcing steel bar in ferroconcrete startlate in our country, and we will meet great hidden trouble in safety brought byrust-corrode problem of reinforcing steel bar, therefore, how to prevent the rustcorrode of reinforcing steel bar and increase the using life-span and endurance ofstructure is a serious problem we are surely about to meet.At the present time, people take all kinds of methods to prevent rust- corrode ofreinforcing steel bar, such as besmearing protective stratum for reinforcing steel bar,increasing the thickness of the protective stratum and so on. These methods havesome effect, but can not solve rust- corrode problem of reinforcing steel barfundamentality. However, using new type of material to substitute reinforcing steelbar can solve the problem fundamentality. At present, the substitutional material ofreinforcing steel bar includes GFRP, CFRP etc. As GFRP has high intensity and highanti- rust-corrode performance and low cost, it will have a comprehensive foregroundin application of civil engineering.GFRP is composite material made up of Alkali Glass-fiber and Vinyl group esterresin, its performance is affected by many factors, moreover, the each performance ofboth materials and the cut- intensity of each other's interface will have importantinfluence to the performance of GFRP. Therefore the main task of this thesis is: on theone hand, beginning from the performance of Alkali Glass-fiber per se, takingmanifold surface treatment, researching on the influence by all kinds of disposal methods to the performance of Alkali Glass-fiber through experiment; on the otherhand, researching on the influence by the performance of Vinyl group ester resin tothe interface-shear intensity of Alkali Glass-fiber and resin, expecting to offer help forthe optimized design of Alkali Glass-fiber and resin.