SU1250899A1 - Bench for analyzing the grouting process of seams of concrete structures - Google Patents

Description

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The invention relates to the construction, in particular to the study of the process of cementation of the joints of concrete structures.

The purpose of the invention is to increase the effectiveness of research.

In FIG. 1, schematically, 153 shows a stand along the seam plane, a general view in FIG. 2, a section A-A in FIG. 1.

The stand consists of metal plates 1 and 2 with an internal surface of concrete. The plate 1 is fixed, and the plate 2 is mounted on the carriage 3 and can be moved. Plates 1 and 2 are connected by studs 4, which allow plates 1 and 2 to be pulled together or moved apart. The gap between the plates is washed down with cement, which simulates a temperature-shrinkable joint. In this case, using plates 1 and 2 with a different internal surface, one can get a flat or stitched seam. FIG. Figures 1 and 2 depict a seam with horizontal puncturing. In the plates t and 2, there are cementation linear 5 and valve 6 outlets and a vent hole 7. Linear outlets 5 serve for the initial filling study, and valve outlets 6 for the secondary cementation study. To obtain standard volume 10

12508992

of the cement stone formed in the weld seam in plates 1 and 2, holes 8 are made. Injection of the solution into the gap between the plates 1 and 2 is carried out from the mortar unit 9, which includes a mortar pump, a mortar mixer, and pressure and flow measurement equipment; from into a plastic material, for example from plasticine.

The work on the stand is carried out as follows.

After installing between the plates 1 and 2, the necessary clearance, which can

 5 to be very small, and the contour seal 10 is forced into the cement gap from the mortar unit 9, and to ensure a small opening of the seam, the inner surface of one plate 2 is made in the form of an impression with the inner surface of the other plate 1, which is concretely put to sleep; First, the inner surface of one slab 1la then, using it as a splint, the inner surface of the second slab 2 is concreted,

As a result of research on the stand, a picture of the filling of the seam with cement mortar is obtained, and

30, after sampling from the recesses 8, determine the strength of the filling joint of the cement. 20

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Editor S. Lisin

rieg

Compiled by V. Malshtev Tehred. E. Chizhmar

Order 4401/37 Circulation 778. Subscription of the State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5

Production and printing company, Uzhgorod, st. Project, 4

Proofreader S. Shekmar

Claims (1)

STAND FOR RESEARCH OF THE PROCESS OF CEMENTATION OF SEAMS OF CONCRETE STRUCTURES, including two plates installed with the possibility of changing the gap between them, a contour seal and instrumentation, characterized in that, in order to increase research efficiency, the inner surfaces of the plates are made in the form of a mold from each other and have recesses for the selection of standard samples of weld cement, and the contour seal is made of a viscoplastic material, such as plasticine "q <C SU „„ 1250899 t