Device and method for quickly testing pressure-water absorption ratio of lightweight aggregate
A technology for testing devices and testing methods, applied in measuring devices, weighing materials, analyzing materials, etc., can solve the problems of insufficient accuracy of test results, use, difficulty and accurate reflection, etc., to achieve accurate results, accurate test results, and simple calculations Effect
Active Publication Date: 2021-03-19
CHINA STATE CONSTR READY MIXED CONCRETE CO LTD +1
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Problems solved by technology
[0004]
However, the existing lightweight aggregate water absorption test mainly relies on the surface-dry method, which cannot be used in a simulated high-pressure environment, and the lightweight aggregate will inevitably appear secondary when the surface-dry method is used to test the water absorption of lightweight aggregate under normal pressure. The secondary release of water makes the accuracy of the test results insufficient, and it is difficult to accurately reflect the change of water absorption of lightweight aggregate under pressure. Therefore, the development of a test method for the change of water absorption of lightweight aggregate under pressure is extremely important.
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[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0035] refer to figure 1 As shown, the lightweight aggregate pressure water absorption ratio rapid test device in an embodiment provided by the present invention includes a cylinder body 10, a water container 7, a net basket 6, a balance 5 and a high-pressure air pump 16, and the water container 7 is arranged on In the cylinder body 10, the upper end of the cylinder body 10 is provided with a loam cake 3, the balance 5 is arranged on the loam cake 3, the net basket 6 is hung below the balance 5, and is suspended in the water container 7, and the water container 7 is provided with Hollow hole 4 is arranged, and hollow hole 4 is higher than net basket 6, and the bottom of water container 7 is provided with drain gate, and high-pressure air pump 16 communicates with cylinder body 10 inner cavity, and upper cover 3 is provided with water injection hole 1,...
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The invention discloses a device and a method for quickly testing the pressure-water absorption ratio of lightweight aggregate. The device comprises a cylinder body, a water container, a mesh basket,a balance and a high-pressure air pump, the water container is arranged in the cylinder body, an upper cover is arranged at the upper end of the cylinder body, the balance is arranged on the upper cover, the mesh basket is hung below the balance and suspended in the water container, a hollow hole is formed in the water container, the hollow hole is higher than the mesh basket, a water discharginggate is arranged at the bottom of the water container, the high-pressure air pump is communicated with the cylinder body, a water injection hole is formed in the upper cover, the water injection holeis communicated with an inner cavity of the water container, and a sealing plug is arranged in the water injection hole; and the inner cavity of the cylinder body is sealed when the high-pressure airpump pressurizes, and the hollow hole enables the water container to be communicated with air pressure of the cylinder body. The testing precision of the pressure-water absorption ratio of the lightweight aggregate is improved, the structure is simple, and measurement is more convenient and faster.
Description
technical field [0001] The invention relates to the technical field of concrete testing, in particular to a rapid testing device and method for the pressure water absorption ratio of lightweight aggregate. Background technique [0002] Lightweight aggregate concrete has the characteristics of high specific strength, good durability and thermal insulation performance, excellent seismic performance, and no risk of alkali-aggregate reaction. Studies have shown that the weight of building structures using lightweight aggregate concrete is about 20% lower than ordinary concrete. , using it in super high-rise buildings can reduce the structural weight. For super high-rise buildings, the corresponding structural size can be appropriately reduced, and the utilization rate of the standard floor area can be improved; at the same time, the seismic performance and durability of the building can be improved, and the thermal insulation and insulation of the building can be improved. therm...
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IPC IPC(8): G01N5/02
CPCG01N5/025
Inventor 谯理格王军赵日煦高飞黄汉洋
Owner CHINA STATE CONSTR READY MIXED CONCRETE CO LTD