The Research On The Tensile Performance Of The Ultra-high-performance Concrete Reinforced By Grading-Fiber

The Tensile performance is one of concrete important performance, especially to the high-performance concrete.In view of RPC has lower tensile Strength, through mixes into the textile fiber, This article studied the influence of the textile fiber to the tensile performance of RPC, and obtained between the different textile fiber best allocated proportion.This article through of the analysis and the comparison strengthens of the mechanism to the different textile fiber in concrete textile fiber, proposed the textile fiber coordination supposition when two kind of textile fibers simultaneously mix stylishly, and theoretically has been carrying on the inferential reasoning. Then through to experimented the mixture ratio as well as the test equipment improvement has carried on the confirmation in the experiment to the textile fiber coordination supposition.This article has selected three kind of different specifications steel textile fibers, first through to its operating performance experiment, had determined the sole textile fiber and grading-fiber can inspire in the situation in RPC which pounds takes shape most greatly to mix the quantity.Meanwhile through two kind of textile fibers simultaneously mix stylishly mixes when to the textile fiber the RPC operating performance test, confirmed the different type textile fiber simultaneously to mix the stylish existence fiber synergistic effect. Then through to the RPC compressive strength, the Splitting tensile strength and the Axial tensile strength experiment, studied the textile fiber to mix the quantity, the type as well as the textile fiber Synergistic effect anti- pulls the performance to RPC the influence, has analyzed three kind of textile fibers the role which played in the RPC dehiscence process. And the test result and the theory predicted value will carry on the analysis to compare. Finally, this article through to mixed into the textile fiber RPC axle center tensile stress - strain entire curve analysis, further had understood the textile fiber mixed synergism between the quantity, the type as well as the textile fiber to the Axial tensile strength of RPC。The test result indicated:(1) This article through to the RPC operating performance experiment, obtained three kind of textile fibers to have the certain influence to the RPC operating...