A destructive test method for a hollow floor gypsum filling box

Abstract

The invention discloses a destructive test method for a gypsum filling box of a hollow floor, which comprises the following steps: Step 1, test preparation; Step 2, preparation of the gypsum filling box; Step 3, damage detection, and the concrete layer whose strength reaches more than 50% Cut the formed hollow floor, cut out two gypsum mold boxes as test objects, observe the cut surface and weigh the weight of the gypsum mold boxes; step 4, compare and observe the test phenomena and record; step 5, test analysis; step 6 , to draw the experimental conclusion. This method can well control the horizontal displacement and floating phenomenon of the gypsum filling box when pouring concrete, and ensure that the cross-sectional size of each component and the thickness of the steel protection layer of the upper and lower plates meet the specifications, design requirements and the compactness of the concrete under the gypsum filling box. It is convenient to control the damage of the gypsum filling box during the vibrating process of concrete pouring, resulting in the increase of concrete volume, and has the advantage of simple and fast construction technology.

Description

technical field [0001] The invention relates to a construction test, in particular to a destructive test method for a hollow floor gypsum filling box. Background technique [0002] The hollow floor is a kind of cast-in-place reinforced concrete hollow floor; it is also called the cast-in-place beamless hollow floor, which is a hollow beamless floor that is cast-in-place after the mandrel product is installed. The hollow floor includes steel bars, concrete, and a mandrel. The mandrel is embedded in the reinforced concrete. It is characterized in that the mandrel is filled with light materials. [0003] The hollow floor has many advantages, saving building materials, especially suitable for large-span and large-space buildings, the two-way grid cast-in-place rib force transmission system, reducing the weight of the floor, the flexibility and humanization of the space, and the real flat plate, There is no need for suspended ceilings, good building energy-saving effect, conveni...

AI Technical Summary

Problems solved by technology

[0004] In the hollow floor, it is often necessary to use the gypsum filling box for construction. During the construction of the gypsum filling box, it is necessary to conduct a destructive test to observe the construction effect to ensure the construction quality. However, most of the destructive tests on the gypsum filling box are currently Based on construction experience, there is no systematic and complete set of methods