SU751939A1 - Concrete-placing unit - Google Patents

Description

The invention relates to the field of construction and can be used in the construction of monolithic concrete blocks of hydraulic structures.

A formwork board is known that contains a flat sheet provided with stiffening ribs located along the sheet contour [11. The disadvantage of this formwork sheet is that its use in places of interblock welds subject to monolithic injection of a hardening solution in them is associated with high costs for drilling wells and with low quality monolithic seams.

Lime is also a shuttering board containing a supporting plate, one of the side surfaces of which is smooth and the other rough. [2]

The disadvantage of this shuttering board is that its use in places of interblock joints, which, after cooling, open up and are subject to monolithic injection of a hardening mortar in them, is associated with large costs for drilling wells that cross the joints. At the same time, the quality of monolithic joints is low, since the wells at the intersection with the joints are clogged with drill cuttings, which reduces the quality of the monolithic structure being constructed.

The aim of the invention is to increase the quality δ of the constructed monolithic structure.

For this, the shuttering board, including the base plate, one of the surfaces of which is smooth and the other is rough, is equipped with outlets with embedded parts located on its smooth surface, and tubular inlet elements connected at one end to the outlets, and the other ends 15 exiting for the rough surface of the plate.

In FIG. 1 shows a shuttering board, horizontal section; in FIG. 2 - block 20 concreting; in FIG. 3 - connection node adjacent formwork panels, horizontal section.

The shuttering board contains a supporting plate 1, one side surface 2 of which is smooth and the other surface 3 is roughened. Outlets 4, 5, 6 with embedded parts 7, 8 are located in the plate 1. Inlet plate 1 is equipped with supply elements, for example pipes 9, 10, 30 11, connected at one end to the outlets 751939 4, 5, 6, and others coming out of the plate 4

Claims (2)

The claims are you. Issues 4, 5, 6, embedded parts 7 and 8 and pipes 9, 10, And are laid in plate 1 during the manufacture of the shuttering board so that outlets 4, 5, 6 and embedded parts 7 and 8 extend onto the smooth surface 2 of plate 1. Formwork panels are installed in the concreting unit 12 with a rough surface inside the block (for better adhesion to the monolithic concrete of the block), and the adjacent block is joined with its smooth surface. The smooth execution of this surface 1 of the shield reduces the adhesion forces between the shields and the adjacent block 13 and, therefore, improves the opening of the interlock seam 14 between them. The hardening solution is pumped into the cavity 2 of the interblock weld 14 through pipes 9, 10, 11 and outlets 4, 5, 6. After all work on the block is completed, shuttering boards are not removed from the block body. 1. The formwork panel, including the supporting plate, one of the surfaces of which 5 swarm is made smooth, and the other is rough, characterized in that, in order to improve the quality of the monolithic structure, the shield is equipped with outlets with embedded parts located on 0 of its smooth surface, and supply elements, some ends of which are connected to the outlets, and others are connected with the atmosphere. 2. The shield by π. 1, characterized in that 5 that the supply elements are made in the form of pipes. Sources and to and 1111 forme ц i and taken into account during the examination 1. USSR copyright certificate 0 No. 175207, cl. E 04G 9/02, 1964. 2. Guidance on the use of formwork for the construction of monolithic reinforced concrete structures, M., Stroyizdat, 1974, p. 107 (prototype). FIG. 2 NGO "Search" Order 1728/3 Ed. No. 422 Circulation 772 Subscription Printing house, 2 Sapunova ave.