Concrete workability testing device and concrete workability testing method

Abstract

The invention relates to a testing device, and particularly relates to a concrete workability testing device and a concrete workability testing method. The concrete workability testing device comprises a rack, and a mixing cylinder body fixed on the rack, wherein power equipment and a discharging device are arranged at two sides of the mixing cylinder body; a gear transmission box and a mixing cylinder are arranged in the mixing cylinder body, mixing shafts are arranged in the mixing cylinder, mixing arms are fixedly arranged on each group of mixing shafts, blades are fixedly arranged on the mixing arms; the mixing shafts are connected with the gear transmission box; the power equipment comprises a motor, the motor is connected with an electric cabinet and a speed reducing box respectively, and a torque velocity sensor is connected with the speed reducing box and the mixing shafts. According to the concrete workability testing device, a power parameter in a mixing process is obtained by virtue of the torque velocity sensor, further the concrete workability is obtained, and the quality of a finished material is accurately reflected; the rotating speed of the motor is regulated, and further the mixing speed is controlled, the concrete workability in a mixing process is dynamically monitored, and the real-time change of the concrete workability in the mixing process is relatively systematically and completely obtained.

Description

technical field [0001] The invention relates to a testing device and a testing method thereof, in particular to a concrete workability testing device and a testing method thereof. Background technique [0002] At present, in the performance experiment of fresh concrete, there is a lack of a more comprehensive method and device for judging the workability of concrete. The methods for testing the workability of concrete in the laboratory and on the construction site include the slump method and the Weibo consistency method. The slump method is a method of measuring the workability of the concrete through the slump height of the slump tube. It is easy to operate and easy to use on the construction site, but the size of the slump can only reflect the yield stress of the concrete, not the concrete yield stress. The plastic viscosity; the Weibo consistency method is a method to measure the workability by combining certain work with fluidity and finally using time, but it can only...

AI Technical Summary

Problems solved by technology

The slump method is a method of measuring the workability of the concrete through the slump height of the slump tube. It is easy to operate and easy to use on the construction site, but the size of the slump can only reflect the yield stress of the concrete, not the concrete yield stress. The plastic viscosity; the Weibo consistency method is a method to measure the workability by combining certain work with fluidity and finally using time, but it can only reflect the plastic viscosity, not the yield stress

[0003] The above two methods are greatly affected by the operation of the test personnel and the accuracy of the instrument, the test results have large errors, it is difficult to accurately reflect the real performance parameters of the concrete, and the guidance for construction is not strong

In addition, the existing methods can only test the workability of the finished concrete, and cannot monitor the dynamic change history of the workability of the concrete during the mixing process

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