Experimental Study on Performance of Bridge Concrete Modified by Silica Fume
In order to study the effects of different dosage of wollastonite on the mechanical properties and durability of modified bridge con-crete,the compressive,flexural and permeability properties of modified bridge concrete were mainly studied.The results show that the com-pressive strength and tensile strength of concrete can be significantly improved when the dosage of wollastonite is 12%.At the age of 60 days,the compressive strength of concrete increased by 19.1%,the flexural strength increased by 22.4%,and the relative permeability coefficient decreased by 38.4%.
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