Method for testing stone content in cement stable crushed-stone material

A technology of cement stabilization and testing method, applied in the direction of removing certain components, such as weighing, etc., can solve the problems of poor engineering quality, difficult judgment, and poor technology, so as to improve quality control, easy operation, and accurate detection. Effect

Active Publication Date: 2018-06-29
徐忠卫
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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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  • Method for testing stone content in cement stable crushed-stone material
  • Method for testing stone content in cement stable crushed-stone material
  • Method for testing stone content in cement stable crushed-stone material

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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 stone content in a cement stable crushed-stone material. The method comprises the steps of primary separation, chemical analysis, waste liquid treatment and result calculation. Compared with the prior art, the method has the advantages that an acid solution mode is used for removing a cement sample in the cement stable crushed-stone material; a weight difference subtraction method is used for calculating the percentage content of the stone in the cement stable crushed-stone material. The method is applicable to the testing on hard rocks (granite, granitic gneiss, diorite, basalt, quartzite, quartz sandstone, marble, slate, phyllite, schist and sandstone) and the like in the mixing materials; the detection is precision; the operation of the experiment method is easy; the quality control of building construction is improved; the popularization and application values are realized.

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 Applications(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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