Test device and method of cement mortar fluidity

Abstract

The present invention discloses a test device and method of cement mortar fluidity. The device includes a cement mortar sprayer, a housing, a shaft, a turbine, a speed friction control strip, a support, and a height-adjustable baffle. The center of the housing front is provided with a cement mortar inlet; an outlet of the cement mortar sprayer is communicated with the cement mortar inlet; the side of the housing is provided with a plurality of injection orifices; the turbine is located within the housing; the front of the turbine has a projection in conical structure; the projection is right opposite to the cement mortar inlet; one side of the speed friction control strip is fixed to the back of the turbine; one side of the baffle is movably connected to the inner wall of the housing, and the other side of the baffle contacts with the other side of the speed friction control strip; the support is fixed to the inner surface of the housing; and one end of the shaft is movably connected to the support, and the other end of the shaft penetrates through the baffle and the speed friction control strip, and is connected to the turbine. The invention can realize the injection of cement mortar and can measure fluidity of the cement mortar.

Description

technical field [0001] The invention belongs to the field of road engineering, and relates to a testing device and method for the fluidity of cement mortar. Background technique [0002] At present, more and more cement concrete circular pipe culverts have many problems, such as cracks, insufficient bearing capacity, and peeling of waterproof layer, which seriously affect their performance. The main reason is that the fluidity of cement mortar is poor. However, it is very difficult to repair these structures, especially the reinforcement and repair work of round pipe culverts: construction workers are inconvenient to operate in the narrow space of round pipe culverts. It is bad and causes great harm to the construction workers. At present, many European and American countries attach great importance to humanized construction, but there is a lack of such small equipment in the market. Therefore, it is extremely important to develop a miniaturized method and device for measuri...

AI Technical Summary

Problems solved by technology

[0002] At present, more and more cement concrete circular pipe culverts have many problems such as cracks, insufficient bearing capacity, peeling of waterproof layer, etc., which seriously affect their performance. The main reason is that the fluidity of cement mortar is poor.

However, these structures are very difficult to repair, especially the reinforcement and repair work of circular pipe culverts: it is inconvenient for construction workers to operate in the narrow space of circular pipe culverts. It is harsh and will cause great harm to the health of construction workers. At present, many European and American countries attach great importance to humanized construction, but there is a lack of such small tools in the market. Therefore, it is extremely important to develop a miniaturized method and device for measuring the fluidity of cement mortar. important

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