Destructive test method for hollow floor gypsum filling box
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A technology of hollow floor and test method, applied in the field of building test, can solve the problem of not having a systematic and complete set of methods, etc., and achieve the effect of simple and fast construction process
Active Publication Date: 2020-04-21
重庆河邦建材有限公司
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[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
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Embodiment 1
[0045] A destructive test method for a hollow floor gypsum filling box, comprising the following steps:
[0046] Step 1, test preparation, has the following process:
[0047] S1, site selection, select an open space with a length of 7.38m and a width of 5.4m, and level the cushion on the open space;
[0048] S2, design, according to the layout of the construction design drawing, one-to-one reinforcement, and calculate the amount of concrete according to the large sample drawing;
[0049] S3, material preparation, material preparation is divided into the following four parts:
[0050] The first part, the template configuration, lays the waste and flat template on the cushion;
[0051] The second part, steel bar configuration, configure plate bars with a diameter of 8mm and a spacing of 200mm, and rib beam ties with a diameter of 6.5mm and a spacing of 250mm.
[0052] The third part, the configuration of gypsum mould boxes and pads, selects 88 sets of mould boxes with a lengt...
Embodiment 2
[0071] In order to make the disclosure of the technical solutions of the present application more complete and the description of the technical means more abundant and detailed, some technical solutions are further defined and supplemented on the basis of the above-mentioned Embodiment 1. Specifically, some technical features of the supplementary description are as follows: , in the described step four, the test phenomenon is the following three parts:
[0072] Part 1, compare the weight of the two gypsum mold boxes as the test object after being fully wetted before concrete pouring and the weight of the gypsum mold box filled in the hollow floor formed by the concrete layer with a strength of more than 50%;
[0073] Part 2: Observe the smoothness of the inner surface of the hollow floor after cutting and taking out the gypsum mold box, whether there is a phenomenon of honeycomb pitting caused by segregation due to water loss;
[0074] Part 3: Observe whether the gypsum fillin...
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Abstract
The invention discloses a destructive test method for a gypsum filling box of a hollow floor. The method comprises the steps: step 1, making test preparation; step 2, preparing a gypsum filling box; step 3, carrying out damage detection; to be specific, cutting the hollow floor formed by the concrete layer with the strength reaching over 50% to obtain two gypsum mold boxes serving as test objects,observing the tangent planes, and weighing the weights of the gypsum mold boxes; step 4, comparing, observing and recording a test phenomenon; step 5, carrying out test analysis; and step 6, obtaining a test conclusion. With the method, the phenomena of horizontal displacement and upward floating of the gypsum filling box during concrete pouring can be well controlled; the sectional dimension ofeach component and the thickness of the reinforcing steel bar protective layers of the upper and lower plates are ensured to meet the specification and design requirements and the compactness of concrete at the lower part of the gypsum filling box is ensured; the problem of concrete quantity increase caused by damage of the gypsum filling box in the concrete pouring and vibrating process is conveniently solved. The construction process is simple and quick.
Description
technical field [0001] The invention relates to a building test, in particular to a destructive test method for a hollow floor gypsum filling box. Background technique [0002] The hollow floor is a cast-in-place reinforced concrete hollow floor; also called the cast-in-place beamless hollow floor, the hollow beamless floor is cast in place after installing the core mold product. The hollow floor cover comprises steel bars, concrete and core moulds, the core moulds are embedded in the reinforced concrete, and the core mould is characterized in that the core moulds are filled with light materials. [0003] The hollow floor has many advantages, saving building materials, especially suitable for large-span and large-space buildings, two-way grid cast-in-place rib force transmission system, reducing the weight of the floor, flexibility and humanization of space, a real flat plate, There is no need for a ceiling, the building energy saving effect is good, the construction is con...
Claims
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Application Information
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