The Deteriorative Mechanics Properties Test Of The CFG Pile In Polluted Surroundings

In saline soil, acid rain area and the surrounding soil and groundwater environment of industry factory, there may be various kinds of acid, sulfate, magnesium salt and other corrosive medium. The erosion media have different influence on the durability of materials, the erosion mechanism of the complex. This article for the study of CFG pile body material erosion in contaminated environment degradation characteristics, analysis with nitric acid, sodium hydroxide, sodium sulfate as solute of acid, alkali, salt erosion medium to its influence, therefore, this article considers the water-binder ratio, solution concentration, dosage of fly ash erosion, erosion(factors such as indoor accelerated erosion test, soaking through indoor accelerated erosion degradation test, analysis of water-binder ratio on certain cases, not at the same time, the dosage of fly ash specimens in various concentrations after soaking in acid, alkali, salt solution, the unconfined compressive strength, resistance to turbidity coefficient, quality change and dynamic elastic modulus of erosion resistance degradation test index change analysis; Analysis in the case of a certain dosage of fly ash, different water/cement ratio, the specimen in the concentration of acid, alkali, salt solution immersion, measuring unconfined compressive strength and resistance to turbidity coefficient, quality change and dynamic elastic modulus of erosion resistance test index change analysis. And the various evaluation index and the water/cement ratio, solution concentration, dosage of fly ash erosion as well as on the relationship between the correlation between each evaluation index carries on the preliminary study.Through the indoor test available:1, Under acidic conditions, the greater the concentration erosion, erosion, degradation of longer, CFG pile material eroded by the higher degree of deterioration; CFG pile material water-cement ratio is, the more fly ash, CFG pile body material deterioration of the stronger acid erosion and reduced water-cement ratio increases more than the use of fly ash increased to improve the performance deterioration of acid erosion CFG pile material.2, CFG pile alkaline environment under the body material, material mix in the water-cement ratio of 0.5, 50% fly ash, alkali erosion CFG pile material deterioration of the strongest.3 Under sulfate environment, the greater the concentration erosion, erosion, degradation of longer, CFG pile material eroded by the higher degree of deterioration; CFG pile material water-cement ratio is, the more fly ash, its resistance deterioration of the stronger acid attack...