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Detection method of pit sand masonry mortar compression resistance penetration method

A technology for masonry mortar and compressive strength, applied in the direction of testing the hardness of materials, etc., can solve the problems of low accuracy and large compressive strength detection error, and achieve a simple method, improved detection accuracy, and guaranteed accuracy. Effect

Inactive Publication Date: 2008-12-24
CHINA CONSTR FOURTH ENG DIV +1
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Problems solved by technology

[0003] The present invention provides a method for detecting the compressive strength of mountain sand masonry mortar by penetrating method, which aims to solve the technical problem that the field detection error of the existing mountain sand masonry mortar compressive strength is relatively large and the accuracy is not high

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  • Detection method of pit sand masonry mortar compression resistance penetration method
  • Detection method of pit sand masonry mortar compression resistance penetration method
  • Detection method of pit sand masonry mortar compression resistance penetration method

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Embodiment Construction

[0043] Embodiments of the inventive method:

[0044] (1) Evenly arrange the measuring points on the horizontal mortar joints of the masonry, and arrange 16 points for each component; the measuring points should be avoided on the edge of the brick and on the masonry mortar with holes or looseness, and the distance between the measuring points should not be less than 240mm , each gray joint should not have more than 2 measuring points.

[0045] (2) When the mortar joints of the masonry are still difficult to achieve smoothness after being polished, it can be marked at the measuring point, and the unevenness d of the mortar surface at the measuring point can be measured and read with a penetration depth gauge before the penetration test i 0 And record, and then carry out the penetration test at the marked measuring point; the mortar joints of the masonry can be directly tested for penetration after being polished;

[0046] (3) Insert the measuring nail into the measuring nail h...

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Abstract

The invention provides a detection method used for detecting the compressive strength of rock sand masonry mortar by a penetration method, comprising the detection steps as follows: measuring points are uniformly arranged on horizontal lime seams of the rock sand masonry mortars to be detected; the measuring points are grinded and levelled; the measuring points are detected exactly one by one by a penetrometer; the penetration depth measuring meter of the penetrameter measures the penetration depth reading values di' of all measuring points; the penetration depth values di of all measuring points are calculated according to the formula as follows: di=20.00-di'; according to the penetration depth average md, experience formulas are converted according to different rock sand masonry mortar compressive strengths: for cement mixed mortars: fz, e<c>=25.9223md<-1.5325>; the effective measurement range is 0.4-15.8MPa; for cement mortars: fz, e<c>=24.7105md<-1.3779>; the effective measurement range is 0.4-16MPa; for yellow sand mortars: fz, e<c>=194.9274md<-2.3769>; the effective measurement range is 0.4 to 10.3MPa; therefore, the compressive strength of the rock sand masonry mortars to be tested is converted, thus solving the technical problems that the site detection of the compressive strength of the rock sand masonry mortars has great error and the accuracy is not high.

Description

technical field [0001] The invention relates to a building detection method, in particular to a detection method for the compressive strength of mortar. Background technique [0002] Mountain sand is a widely used building material in western China, especially in Guizhou Province. But for a long time, there is no special test method for the compressive strength of mountain sand masonry mortar, and the method of testing the compressive strength of ordinary masonry mortar has been borrowed from the penetration method. Although the distribution laws of the two strength measurement curves are roughly the same, both of which are distributed in a power function, but due to the difference in properties between mountain sand and ordinary sand, the texture of fine aggregate is different, and the mix ratio of mortar is different, so the compressive strength distribution of masonry mortar is different. The rules are also quite different. When using the penetration method to test the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/40
Inventor 帅颂宪
Owner CHINA CONSTR FOURTH ENG DIV
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