Experimental Studies Of Application For Emulsified Asphalt Water Proof Paint And Mixtures In Hydrostructure

According to application prospect of bituminous concrete in hydro-project and wide application of positive emulsified asphalt in highway engineering, studies that emulsified asphalt is used as fundamental material of water proof material for hydrostructure are brought up in this article, because it is important sense of using emulsified asphalt construction. First, practise sources of energy: using emulsified asphalt construction saves plenty of sources of energy by comparison of using hot bituminous concrete construction. Secondly, practise resources: positive emulsified asphalt has good effect of adherence with acidic aggregate and basic aggregate, and to expand resources of aggregate, use indigenous raw materials, cut down expense of material.Thirdly, delaying construction season: in rainy and lower temperature season, using emulsified asphalt can construct too, and prolong construction time, and shorten construction period. At last, improve construction condition and lessen environmental pollution.Water proof materials of emulsified asphalt point to the material that using emulsified asphalt mixed with aggregate. When mineral emulsifier is adulterated into emulsified asphalt, materials that emulsion mixes with filler are called as water proof paint of emulsified asphalt, while , materials that emulsion mixes with aggregate and filler are called as mixture of emulsified asphalt. Proportion of water proof material of emulsified asphalt, mixing processing, and characteristics are carrying on studying, and the details are as follows:(1)Bituminous emulsificationQuality of emulsified asphalt affects very largely characteristics of water proof material of emulsified asphalt. Accordingly, in the article, the method of bituminous emulsification in the laboratory is elected, and we elect multiple emulsifier and groped emulsified conditions. In these emulsified conditions, we emulsify emulsified asphalt of different concentration, and verify their characteristics to ensure qualification of bituminous emulsion characteristics.(2)Water proof paint of emulsified asphaltEmulsified asphalt, bin milk and cement are elected as raw material of water proof paint of emulsified asphalt. water proof paint are mixed by way adding material as follow: at first, adulterate emulsified asphalt, secondly, adulterate bin milk, at last, adulterate cement. Water proof paints of emulsified asphalt of different proportion are carried on experimenting of various term of characteristics to test the result of emulsion, especially testing shear strength, strength of adherence and coefficient of permeability.(3)Mixtures of emulsified asphaltAt first, grade and proportion of mineral aggregate, dosage of emulsion and water dosage of mixing are elected by experimental method of mixtures of emulsified asphalt for highway engineering, secondly, to mix them into mixtures in order and mould samples, finally, samples are maintenance in curing condition and void fraction are tested. Result of testing isn't accord with technological need of hydraulic structural water proof, accordingly, grade and proportion of mineral aggregate using for highway engineering can't use in hydro-project. In the article, grade of mineral aggregate, bituminous dosage and dosage of cement (according to needing) are elected by method of comparison with hot bituminous concrete, and we mix mineral aggregate, emulsion and cement into mixtures of emulsified asphalt, and mould samples of Marshell and rectangular volume, in addition, characteristics of deformation and permeability are be tested.From studies of this article, drawing a conclusion: water proof paint of emulsified asphalt can be water proof materials of hydraulic structure, ordinary concrete of emulsified asphalt can't be materials of waterproof layer, cement concrete of emulsified asphalt need being further studies to ensure that it can or can't be materials of waterproof layer of hydraulic structure .