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Cement setting time tester

A technology of time determination and cement setting, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of heavy workload of experimenters and low accuracy of test results, and achieve convenient experimental operation, low cost, and simple design structure Effect

Active Publication Date: 2015-10-28
HEBEI KEXIN INSTR EQUIP CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In the whole process of cement setting time measurement, it is necessary to ensure that the test needle cannot fall into the existing pinhole before each measurement. In each measurement, it is necessary to manually read the scale scale to determine the sinking depth of the test needle. After each measurement, it is necessary to clean the test needle and put the test mold back into the moisture curing box for curing. Obviously, the cement setting time measurement process in the prior art has the defects of large workload for the experimenters and the disadvantage of The defect of low accuracy of test results due to too much human participation

Method used

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0015] Such as Figure 1~3 As shown, the cement setting time tester of the present invention comprises a bottom shell 1, a top shell 2, a support body 3, two measuring chambers 4 and a machine head body 5; the bottom shell 1 and the top shell 2 A support body 3 is arranged between them, the top of the support body 3 is fixedly connected with the top shell 2, the head body 5 is arranged at the bottom of the top shell 2, the bottom of the support body 3 is movably connected with the bottom shell 1, and the bottom shells on both sides of the support body 3 Two measuring chambers 4 are respectively fixedly arranged on the body 1;

[0016] A Y-direction component base 101, a Y-direction stepping motor 102, a Y-direction supporting optical axis 103, a Y-direction limit switch 104, a Y-direction ball screw 105, and a Y-direction sliding unit are arranged in...

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Abstract

The invention relates to a cement setting time tester. The cement setting time tester comprises a bottom shell, a top shell, a support, two testing bins and a machine head. The support is arranged between the bottom shell and the top shell. The top of the support is fixedly connected with the top shell. The bottom of the support is movably connected with the bottom shell. The two testing bins are fixedly arranged at the portions, at the two sides of the support, of the bottom shell respectively. The machine head is arranged at the bottom of the top shell. The accuracy of the test result can be effectively improved, the workload of experimenters can be effectively reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a soil engineering test instrument, in particular to a cement setting time tester. Background technique [0002] The determination of cement setting time includes the determination of initial setting time and final setting time. Among them, the determination of initial setting time is the first measurement when the specimen is cured in a moisture curing box and water is added for 30 minutes. The specific measurement process is: take out the test mold and put Under the test needle, after the test needle is in contact with the surface of the cement slurry, the test needle sinks into the cement slurry vertically and freely, and the measurement process is repeated until the test needle stops sinking or the test needle is released for 30 seconds. When the distance is 4mm±1mm, it is recorded as the time when the cement reaches the initial setting state, and the initial time when the cement reaches the initial setting state is the tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/12
Inventor 王文茹
Owner HEBEI KEXIN INSTR EQUIP CO LTD
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