A test method for detecting the anti-seepage of mortar

A test method and technology of mortar test blocks, which are applied in the preparation of test samples, measuring devices, permeability/surface area analysis, etc., can solve problems such as easy water leakage

A test method and technology of mortar test blocks, which are applied in the preparation of test samples, measuring devices, permeability/surface area analysis, etc., can solve problems such as easy water leakage

CN108918387BActive Publication Date: 2021-06-25HEBEI SANKAISHENFA SCI & TECH CORP LTD
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  • A test method for detecting the anti-seepage of mortar

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[0014] The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings. The protection scope of the present invention is not limited to the embodiments, and any changes made by those skilled in the art within the scope defined in the claims also belong to the protection scope of the present invention.

[0015] The test method for detecting the impermeability of mortar in the present invention is as follows: firstly, the silicone acetate sealant and the quick-hardening sulfate cement are evenly mixed according to the weight ratio of 2:1 to prepare the mixed sealant. When adding the hard sulfate cement material to the acetate silicone sealant, sprinkle it evenly on the colloid, add it in two times, wear environmentally friendly anti-acid gloves and perform repeated grasping operations to make the fast hard sulfate cement and silicone acetate sealant well mixed. Put the cured mortar block to be tested into the standard la...

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Abstract

The invention relates to a test method for detecting the anti-seepage performance of mortar. Put the cured mortar block to be tested into a standard laboratory for static drying treatment for 0.5h, and evenly coat the anti-seepage test mold with a mixed sealant. For the inner wall, the thickness of the mixed sealant is 1-2mm. Then press the mortar block into the anti-seepage test mold with a press to form a mortar test block, so that colloid is extruded from the upper and lower gaps of the mortar test block, and the coating operation is carried out again if there is a gap in the mortar test block. The bottom surface of the mortar test block after being pressed into the mortar block is parallel to the bottom surface of the impermeability test mold, and the colloid extruded from the upper and lower gaps of the mortar test block is scraped off, and the impermeability test is carried out after being placed in the laboratory for 2 hours. The mixed sealant is prepared by uniformly mixing acetate silicone sealant and rapid-hardening sulfoaluminate cement at a weight ratio of 2:1. The invention solves the problem of easy water leakage when detecting high pressure, optimizes the detection operation process, and improves the detection effect and accuracy.

Description

technical field [0001] The invention belongs to the technical field of building material performance testing, and relates to a mortar detection technology, in particular to a test method for detecting mortar impermeability. Background technique [0002] The impermeability performance of waterproof mortar seriously affects its use effect, so it is particularly important to test the impermeability performance of waterproof mortar in order to meet the requirements of use. At present, the impermeability pressure of mortar with waterproof performance is generally above 1.5MPa. According to the GB 23440-2009 standard, the 7d impermeability pressure requirement for mortar specimens is ≥1.5MPa. When testing the impermeability pressure of mortar specimens, it is necessary to put the mortar The block is coated with a layer of rosin paraffin liquid or a paste with a weight ratio of butter to cement of 1:3 for sealing, and then put into an anti-seepage test mold for fastening. The rosi...

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Application Information

Patent Timeline
25 Jun 2021
Publication
CN108918387B
IPC
G01N15/08; G01N1/28; G01N1/38; G01N1/36
CPC
G01N1/28; G01N1/36; G01N1/38; G01N15/082; G01N2001/366
Inventors
马国栋; 谢红