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Test method used for detecting concrete product efflorescence degree

A technology of concrete products and test methods, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as efflorescence of pavement bricks and curbs

Inactive Publication Date: 2018-11-30
爱尔建材(天津)有限公司
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Problems solved by technology

We have carried out experiments with reference to these methods, but the results all ended in failure, that is, according to these methods, the ideal pan-alkaline phenomenon cannot occur on pavement bricks and curbstones.
That said, none of these methods are suitable for efflorescence verification of pavers and curbs

Method used

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  • Test method used for detecting concrete product efflorescence degree
  • Test method used for detecting concrete product efflorescence degree
  • Test method used for detecting concrete product efflorescence degree

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Embodiment Construction

[0024] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0025] A test method for detecting the degree of efflorescence of concrete products, comprising the following steps,

[0026] 1) Preparation of test piece; the height of the test piece is 6cm, the thickness of the surface layer is 1cm, and the thickness of the base layer is 5cm. When forming, only the alkali inhibitor is added to the surface layer, and the base layer is not added; the formed test piece is divided into 10 groups, each group 3 pieces, the first group is the comparison test piece), without adding any alkali inhibitors; the second to tenth groups are respectively added different alkali inhibitors according to the mass ratio of alkali inhibitors and cement;

[0027] 2), natural curing, after the above-mentioned fabricated test pie...

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Abstract

The invention relates to a test method used for detecting concrete product efflorescence degree. The test method comprises following steps: 1, test piece preparation is carried out, wherein moulded test pieces are separated in groups, the 1th group is taken as a reference group, and no efflorescence inhibitor is added into the 1th group, and different efflorescence inhibitors are added into the 2th to the Nth groups based on the mass ratio of the efflorescence inhibitors to cement; 2, 7 days of natural curing is carried out; 3, the above test pieces are immersed in a sodium chloride solution with a concentration of 1% for water absorption saturation; 4, high low temperature circulation is adopted for efflorescence test, and efflorescence situations are recoded; 5, the ideal efflorescence inhibitor is determined based on ideal efflorescence situations on the test piece surfaces after 5 to 7 circulations of step 4; and 6, verify test is carried out. The test method can be used for effective examination of pavior brick efflorescence effectively, the reasonable efflorescence inhibitor is selected, the strength and the compactness of the pavior bricks and road edge stones are improved,and it is beneficial for improvement of product quality.

Description

technical field [0001] The invention belongs to the technical field of detecting the efflorescence degree of concrete products, in particular to a test method for detecting the efflorescence degree of concrete products used for pavement bricks and curbstones. Background technique [0002] Concrete-based materials are currently the most widely used building materials. However, under certain external environmental conditions, the phenomenon of efflorescence will occur on the outer surface of cement-based materials. The phenomenon of efflorescence is caused by the deposition of soluble substances inside the cement-based material on the surface of the material, which is mainly manifested as "hoarfrost" on the surface of the material. For some buildings with aesthetic appearance requirements, such as clear water bridge decks, building exterior wall finishes, etc., the phenomenon of efflorescence will seriously affect the aesthetic properties of cement-based materials. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 刘东
Owner 爱尔建材(天津)有限公司
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