Foam concrete stirring device for laboratory and sample preparation method

Abstract

The invention discloses a foam concrete stirring device for a laboratory and a sample preparation method. Belongs to the field of experimental instruments and comprises a spherical crown type cement stirring basin, a cement basin support, a slurry outlet faucet, a stirring assembly fixing socket, a stirring assembly 1 and a stirring assembly 2. The stirring assembly 1 comprises a fixed seat ring, a stirring rod swing control system, a horizontal rotating system 1, a stirring rod, a controllable honeycomb stirring blade, a connecting and fixing plug, a rotating seat ring groove, a gear transmission box and a transmission gear; the stirring assembly 2 comprises a fixed seat ring, a connecting and fixing plug, a rotating seat ring groove, a vertical height adjusting system, a grip, a horizontal rotating system 2 and a stirring wheel piece. The method is suitable for preparation of light soil samples, and is economical and convenient; in the links of foaming and the like in the preparation method of the lightweight foam concrete, the loss or nonuniform phenomenon of foam stirring is reduced; parameters of all the components can be adjusted to a certain degree, and the device can adapt to various conditions; manual operation is achieved, operation is easy, and quality is guaranteed.

Description

technical field [0001] The invention relates to the field of experimental instruments, in particular to a laboratory foam concrete mixing device and a sample preparation method. Background technique [0002] As a lightweight soil material, foamed concrete is different from ordinary cement and concrete pouring methods. In the mixing process of lightweight foamed concrete, after the cement slurry is evenly mixed, it is necessary to use foaming agent and foaming agent to foam, and the foam is mixed into the cement slurry for mixing, and the process needs to be strictly controlled. Too fast stirring speed will cause broken foam to foam, and too slow will cause defoaming. At the same time, frequent tumbling of the slurry and mixing with air will also cause problems such as excessive foam voids. [0003] Most of the existing series of laboratory concrete mixers are miniature versions of on-site concrete mixers, and their parameters such as mixing volume far exceed the experimenta...

AI Technical Summary

Problems solved by technology

Too fast agitation speed will lead to broken bubbles and foaming, and too slow will cause defoaming. At the same time, frequent tumbling of slurry and air mixing will also cause problems such as excessive foam voids.

[0003] Most of the existing series of laboratory concrete mixers are scaled-down versions of on-site concrete mixers, and their mixing volume and other parameters far exceed the experimental requirements of lightweight foam concrete, resulting in unnecessary waste

At the same time, during the sample preparation process, the drum-type mixer will also cause excessive contact between the foam and the air, which will have an adverse effect on the pores of the sample.

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