Detection method for assembled floor-board water absorption expansivity

Abstract

The invention discloses a detection method of water absorption expansion rate of assembled floors, comprising the following steps: 1) assembling four floors wherein the middle two floors are arranged in vertical line shape and another two floors are arranged at the two horizontal sides of the two middle floors, the four floors are in the shape of a Chinese character 'zhong'; 2)respectively making five bench marks respectively in the middle point of the assembling point of the middle two floors, respectively arranged at the upper and lower 1/4 floor-length position at the horizontal sides of the two middle floors and measuring the floor thickness h1 of the five mark points; 3) covering the five bench marks by a water absorption sponge for two hours and measuring the floor thickness h1 of the five mark points h2, and then calculating the floor thickness water absorption relative expansion degree, if one bench point is larger or equal to 3%, the floor of the batch is not qualified. The detection method simulates the water absorption expansion process of the composite floor to constitute the calculation method capable of more practically characterizing the relative water absorption expansion degree of the finished composite floor and the qualification criterion standard.

Description

Technical field [0001] The invention relates to a method for detecting the expansion rate of floors, in particular to a method for detecting the expansion rate of water absorption at the joints of assembled composite floors, and belongs to the technical field of architectural decoration. Background technique [0002] Composite flooring is more and more widely used due to its high degree of simulation, durability, low price and good quality. Composite flooring mainly uses medium and high-density fiberboards. Due to the voids in the middle and high-density fiberboards, although the composite floor The balance layer on the bottom surface and the wear-resistant layer on the top surface have been waterproofed, and the tenons and grooves around the locks are also coated with a waterproof layer, but because the locks are not covered with a protective layer, moisture is easy The locks at the joints of the composite floor penetrate into the base material, causing expansion and deformation...

AI Technical Summary

Problems solved by technology

In actual testing, the water absorption and expansion indicators of some poor-quality composite floor specimens meet the national standards, but in actual use, the water absorption and expansion process of composite floors is seldom as specified in the standard. If you use a wet mop to mop the floor, or accidentally splash water on the floor and fail t

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