论文信息 - Analysis on the hazardous jarosite added concrete

Analysis on the hazardous jarosite added concrete

Abstract This paper attempts to propose a new method for re-use of jarosite in concrete. Jarosite added concrete was studied for different mechanical and durability properties. The experiments were performed in the laboratory and statistical analysis was done using JMP software to predict the models for different test results by the method of least squares. The models were reduced to equations which depend on water-cement ratio, number of days and jarosite replacement ratios. The strength (compressive and flexural tensile) and abrasion resistance was found increasing, however the depth of water penetration and amount of water absorption was reduced with the increased jarosite content in concrete. Chloride Ion Penetration after 28 and 56 days of immersion was calculated and satisfactory results was observed.

[1] V. Mymrin,et al. New construction materials from Spanish jarosite processing wastes , 1999 .

[2] V. Mymrin,et al. Potential application of acid jarosite wastes as the main component of construction materials , 2005 .

[3] F. Fonseca,et al. Compressive strength of masonry grout containing high amounts of class F fly ash and ground granulated blast furnace slag , 2015 .

[4] L. Kong,et al. Evaluation of the effect of aggregate on concrete permeability using grey correlation analysis and ANN , 2016 .

[5] Turan Özturan,et al. Effect of initial curing on chloride ingress and corrosion resistance characteristics of concretes made with plain and blended cements , 2007 .

[6] M. Khatibinia,et al. Modeling mechanical strength of self–compacting mortar containing nanoparticles using wavelet–based support vector machine , 2016 .

[7] Wang Jialin,et al. Numerical investigation on gypsum and ettringite formation in cement pastes subjected to sulfate attack , 2017 .

[8] M. Ward,et al. Effect of silica fume and fly ash on heat of hydration of Portland cement , 2002 .

[9] Veerendra B. Kumar,et al. Assessment of water absorption and chloride ion penetration of pavement quality concrete admixed with wollastonite and microsilica , 2009 .

[10] Turan Özturan,et al. Estimation of chloride permeability of concretes by empirical modeling: Considering effects of cement type, curing condition and age , 2009 .