Civil engineering material deformation experimental instrument suitable for multipoint measurement

Abstract

The invention discloses a civil engineering material deformation experimental instrument suitable for multipoint measurement. The instrument comprises a metal barrel, an upper porous plate and a lower porous plate, wherein the interior of the metal barrel forms a columnar cylinder. The instrument is characterized in that a vertical support beam is fixed on the metal barrel; a support beam is arranged on the vertical support beam; a spring contact is arranged on the support beam, and consists of a contact rod, a shell, a cross rod and a resetting spring; the shell is movably fixed on the support beam through a fixing sleeve; the contact rod longitudinally penetrates through the shell; the cross rod is fixed together with the contact rod; a level gauge for marking whether the support beam is in a horizontal state or not is arranged on the support beam. According to the experimental instrument, the spring contact moves on the support beam to realize the multipoint deformation measurement of an experimental material; the experimental instrument has the advantages of simple structure, data accuracy and convenience in measurement, the size of the experimental instrument is effectively reduced, and the experimental instrument can be conveniently placed in a conventional water bath for heating to keep stable experimental conditions.

Description

technical field [0001] The present invention relates to a kind of civil material deformation experiment instrument suitable for multi-point measurement, more specifically, relates to a kind of civil material deformation suitable for multi-point measurement which uses the displacement of the touch rod to characterize the deformation of the experimental material Experimental apparatus. Background technique [0002] In civil material tests, many materials involve deformation tests, such as expansive soil, steel slag materials, collapsible loess, etc. In many cases, such as expansibility tests, it is necessary to immerse the specimen in hot water to maintain the water temperature at 80°C ± 3°C and continue More than 6h. The following problems exist in the actual operation of the test stipulated in the specification: 1. In the actual test, such as the steel slag expansion test, the height of the test piece is 15cm, plus the bottom plate, dial gauge and other instruments, the int...

AI Technical Summary

Problems solved by technology

The following problems exist in the actual operation of the test stipulated in the specification: 1. In the actual test, such as the steel slag expansion test, the height of the test piece is 15cm, plus the bottom plate, dial gauge and other instruments, the internal height of many conventional constant temperature water tanks is not enough , causing the problem that the cover cannot be closed, and it is difficult to maintain the experimental conditions of 80°C±3°C; 2. The surface of many dial indicators on the market is plastic, which will deform and fall off in a high temperature environment, causing Unable to obtain accurate experimental results

Images