Test method for stone content in cement-stabilized crushed gravel

A cement stabilization and testing method technology, applied in the direction of weighing by removing certain components, can solve problems such as unqualified engineering quality, unqualified technology, and difficulty in judging, so as to improve quality control, accurate detection, and easy operation Effect

Active Publication Date: 2021-02-12
徐忠卫
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  • Application Information

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Problems solved by technology

However, in the prior art, some cement-stabilized crushed gravel construction projects are of poor quality due to unqualified technology or cutting corners during construction, and it is difficult to judge whether the quality is passed during acceptance. In order to improve construction quality and safety factor, a kind of Efficient and accurate detection method

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  • Test method for stone content in cement-stabilized crushed gravel
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  • Test method for stone content in cement-stabilized crushed gravel

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Embodiment Construction

[0025] The present invention will be further described below:

[0026] Terms and Definitions:

[0027] Constant weight: After the first drying, cooling, and weighing, the constant weight is determined by continuous drying for 20 minutes each time, then cooling, and weighing. When the difference between two consecutive weighings is less than 0.01g, That is, a constant is reached.

[0028] Basic requirements for the test:

[0029] Number of tests and requirements: The number of tests for each determination is specified as two, and the average value of the two test results is used to express the measurement result.

[0030] Representation of masses, volumes and results:

[0031] Use "gram (g)" to express mass, accurate to 0.01g. The analysis results are expressed in mass fractions, expressed in percent to two decimal places.

[0032] Reagents and materials: Unless otherwise specified, the reagents used should not be less than analytically pure. The water used should meet th...

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Abstract

The invention discloses a method for testing the content of stone in cement-stabilized crushed gravel, including preliminary separation, chemical analysis, waste liquid treatment and result calculation. Compared with the prior art, the invention adopts an acid-soluble method to remove cement-stabilized crushed gravel The cement sample in the material is used to calculate the percentage of stone in the cement-stabilized crushed gravel by weight difference method. This method is suitable for hard rocks (granite, granitic gneiss, diorite, basalt, quartzite, quartz sandstone, marble, slate, phyllite, schist, sandstone) in the admixture, and the detection is accurate , the experimental method is easy to operate, improves the quality control of building construction, and has the value of popularization and application.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a method for testing stone content in cement-stabilized broken gravel. Background technique [0002] Cement-stabilized crushed stone uses graded crushed stone as aggregate, uses a certain amount of cementitious material and sufficient mortar volume to fill the gaps in the aggregate, and paves and compacts according to the principle of embedded extrusion. Its compaction is close to compactness, and its strength mainly depends on the principle of interlocking and locking between crushed stones, and at the same time, there is enough mortar volume to fill the voids of aggregates. Its initial strength is high, and its strength increases with age to quickly form a board, so it has higher strength, better impermeability and frost resistance. It is widely used in civil engineering. However, in the prior art, some cement-stabilized crushed gravel construction projects are of p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 徐忠卫陈建友蒋红艳王保强王继华
Owner 徐忠卫
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