Immersion test method for fiber monofilament corrosion resistance test

Abstract

The invention discloses an immersion test method for a fiber monofilament corrosion resistance test. The immersion test method comprises: fabricating a plurality of cloth bags with cloth having good hydrophilicity and water permeability, and feeding sample fibers into an opposite end of each cloth bag opening, marking the cloth bags, placing the cloth bags in a test solution, and squeezing out bubbles in the cloth bags; after a period of time, the cloth bags gradually sink to the bottom of the test solution, and when a predetermined period is reached, and the cloth bags need to be detected, arequired amount of the sample fibers is taken from the cloth bags with tweezers, placed in distilled water for 24 hours, and dried for detection; if the test solution needs to be replaced, all that isneed is to take out the cloth bags and replace the test solution. The immersion test method ensures that fibers can be completely eroded by a solution, thereby increasing the accuracy of a test result; the solution is heterogeneous, and the fibers are placed in the cloth bags and are immersed in the solution, so that the fiber dispersion range is narrowed, and the concentration of the solution ata same position is basically the same, and test errors are reduced.

Description

technical field [0001] The invention relates to the field of fiber for cement concrete, in particular to a test method for immersion in a fiber monofilament corrosion resistance test. Background technique [0002] Adding a certain amount of fiber fabric to cement-based composite materials is a material reinforcement method that is gradually popularized in the field of construction engineering. Adding a certain amount of fiber or fabric to cement-based materials can not only improve the tensile properties and toughness of the cement matrix, but also the presence of fibers can effectively avoid carbonation and corrosion of the cement base material, and can effectively improve the durability of the cement base material performance. Cement is an alkaline material, so the reinforcing fiber is required to have a certain alkali resistance in order to ensure the reinforcing effect of the reinforcing fiber in the cement base material. Therefore, exploring the corrosion resistance o...

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Problems solved by technology

[0005] The purpose of the present invention is to aim at existing fiber corrosion resistance test standard, only considered short-term test, did not mention long-term test, and in long-term test, if change immersion container, then cause fiber to float and regularly change liquid to cause To solve problems such as fiber loss, a test method for immersion in the corrosion resistance test of fiber monofilament is proposed

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