Concrete salt-resistant solution physical crystal erosion destruction performance test device
A testing device and technology of salt solution, applied in the field of testing device for concrete resistance to physical crystallization erosion of salt solution, can solve the problems of inability to simulate the erosion process of salt crystallization, discrete data, large workload, etc. Human error, the effect of reduced workload
Inactive Publication Date: 2010-08-25
CENT SOUTH UNIV
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Problems solved by technology
At present, some scholars at home and abroad use the method of concrete dry-wet cycle and the change of compressive strength, flexural strength or concrete dynamic elastic modulus as the index to evaluate the salt crystallization resistance of concrete (these evaluation indexes are mainly based on the concrete material However, this method cannot really simulate the actual salt crystal erosion process, and the workload is large, the time is long, and the data are scattered, so there are still some problems in the use of this method and the evaluation index. big controversy
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[0011] The present invention is described as follows with reference to accompanying drawing in conjunction with specific embodiment:
[0012] As shown in the accompanying drawings, the present invention includes a sealable plexiglass box 10, a vacuum pump 1 and a pressure reducer 3 processed from high-strength plexiglass with a certain thickness, and the plexiglass box 10, the pressure reducer 3, and the vacuum pump 1 pass through The connecting pipes 5 are connected sequentially. A groove connected to the external reading tube 8 and filled with saline solution 9 is provided at the bottom of the plexiglass box 10. A valve is provided at both ends of the connecting pipe 5 connected to the plexiglass box 10 and the vacuum pump 1. 2. The vacuum pump 1 is provided with a pressure gauge 4, and the plexiglass cover plate 12 and the bolt 6 for fixing the concrete test piece 7 are arranged in the plexiglass box 10. The sealing ring 11 is contact-tight, and the groove is circular. Fir...
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The present invention provides a testing device for the erosion destroy capability of the physical crystal of the concrete salt-tolerant solution, and includes a plexiglass box which is provided with a certain thickness which can be sealed and is made of high strength plexiglass, a vacuum pump, and a reductor. The present invention is characterized in that the plexiglass box, the vacuum pump, andthe reductor are connected through a connecting pipe in turn; and a groove which is communicated with an external reading pipe and is filled with salt solution is arranged on the bottom of the plexiglass. The present invention has simple and rational structure, easy operation, convenient installation and adjustment, and short test period; and is applicable to industrialized large-scale production.
Description
technical field [0001] The invention relates to the technical field of durability testing of building materials, in particular to a test device capable of simulating and testing the transmission of salt solution in concrete in actual engineering and causing salt crystal erosion damage, in particular to a concrete resistance to salt solution physical crystal erosion damage performance test device. Background technique [0002] The testing and evaluation of concrete durability is a very complicated issue. Due to the different causes of concrete durability damage, the methods and indicators used to test and evaluate the durability of concrete are also different. The physical erosion of concrete by salt solution is the cause of concrete durability. One of the important causes of sexual destruction. At present, some scholars at home and abroad use the method of concrete dry-wet cycle and the change of compressive strength, flexural strength or concrete dynamic elastic modulus as...
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IPC IPC(8): G01N33/38G01N17/00
Inventor 谢友均马昆林龙广成袁航
Owner CENT SOUTH UNIV