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Integrated device for measuring apparent density of aggregate and measuring method

An apparent density, integrated technology, applied in the field of integrated devices for measuring the apparent density of aggregates, to achieve the effects of improving detection efficiency, simple operation, and low requirements

Pending Publication Date: 2021-12-07
CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an integrated device and measurement method for measuring the apparent density of aggregates that is easy to use, easy to operate, and has low requirements for testing operators, so as to solve the problem of aggregate surface density in engineering construction. Contradictions of heavy workload, complex operation, tight construction schedule, and insufficient allocation of high-end inspection personnel

Method used

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  • Integrated device for measuring apparent density of aggregate and measuring method
  • Integrated device for measuring apparent density of aggregate and measuring method

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Experimental program
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Embodiment

[0026] (1) Process the aggregate sample soaked for 24 hours into a saturated surface-dry state according to engineering requirements, and weigh the aggregate quality G, which is 8.973kg;

[0027] (2) Immerse the net basket completely in the water tank filled with water, read the water surface height H1 from the scale of the column connector, and H1 is 462mm;

[0028] (3) Put all the aggregate samples in the saturated surface dry state in step (1) into the mesh basket, immerse them all in the water tank filled with water, and read the water surface height H2, H2 from the scale of the columnar connector is 489mm, and the calculated height difference H2-H1 is 27mm;

[0029] (4) According to the formula Where S is the bottom area of ​​the water tank, after substituting the data Then the aggregate apparent density ρ measured this time is 2645kg / m 3 .

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Abstract

The invention discloses an integrated device for measuring the apparent density of aggregate. The integrated device comprises a water containing barrel and a mesh basket, wherein a vertical columnar communicating vessel is arranged on the side surface of the water containing barrel, the mesh basket can be placed in the water containing barrel, and scales are arranged on the vertical columnar communicating vessel. The determination method comprises the following steps that an aggregate sample soaked for 24 hours is treated into a saturated surface dry state according to engineering requirements, and the mass of the aggregate is weighed; a net basket is completely immersed in a water containing barrel filled with water, and the water level height is read from a dial gauge of the columnar communicating vessel; all the aggregate samples in the saturated surface dry state are put into a mesh basket and are immersed into a water containing barrel filled with water, and the water level height is read from a dial gauge of the columnar communicating vessel; and the measured aggregate apparent density is calculated according to a formula. Compared with a traditional measuring device and method, the method is novel, the structure is integrated, operation is easy, the requirement for testers is not high, calculation is easy, and efficiency is high.

Description

technical field [0001] The invention relates to a device and a method for measuring the apparent density of aggregates, in particular to an integrated device and a method for measuring the apparent density of aggregates. Background technique [0002] In the field of engineering, there have always been strict technical requirements for the apparent density of engineering aggregates. The determination of aggregate apparent density is a basic and frequent test operation for engineering material testing. The traditional determination of aggregate apparent density requires the use of a hydrostatic balance composed of a balance and a hydrostatic device. The operation of the hydrostatic balance must comply with the operating requirements of the "Hydrostatic Balance" specification, especially its leveling, adding and unloading weights , Moving the swimming code, rebalancing and other operations are demanding, and require extremely high hands-on ability of ordinary operators; and th...

Claims

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Application Information

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IPC IPC(8): G01N9/02
CPCG01N9/02G01N2009/024
Inventor 李俊峰赫庆彬王聪辉冯晓波王彤张俊刘伯春冯岩杨玉波刘磊
Owner CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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