JPH088810Y2 - Curing tank for concrete products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a curing tank for heating and curing a demolded concrete product or a concrete product poured into a mold.

[Prior Art] For long concrete products such as cylinders and piles, after filling a cylindrical formwork with ready-mixed concrete, the formwork is attached to a centrifugal molding machine and centrifugally molded to cure the molded concrete product. It is temporarily stored in a tank and cured by heating with steam or hot air. Conventionally, this seed curing tank has been made of concrete, and the entire foundation, outer wall, etc. have been a continuous concrete structure made by placing fresh concrete.

[Problems to be solved by the invention] However, if the entire curing tank is made of concrete, all of the work will be on-site construction, and since it will take a considerable number of days to cure the concrete after placing the ready-mixed concrete, It had the drawback that the construction days would be very long. Furthermore, since the entire curing tank becomes a continuous concrete structure, there is a risk that thermal stress will occur in the concrete that constitutes the curing tank due to temperature changes during the curing heating of the concrete product, causing cracking in the concrete. It may also cause corrosion of reinforcing bars and peeling of concrete.

In view of the above points, the present invention has an object to provide a curing tank for concrete products which shortens the number of days of on-site work and solves the adverse effects of thermal stress.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a frame member laid in a square shape on a foundation, a column vertically erected at an appropriate interval on the frame member, and a little between the columns. A box-shaped space is formed by the side wall panel fitted with a gap between and, and a joint material is filled in the fitting gap between the side wall panel and the support.

[Operation] In the concrete product curing tank according to the present invention,
Since the frame material, the pillar, and the side wall panel are manufactured in advance in the factory, these members can be transported to the site, and the frame material, the pillar, and the side wall panel can be assembled in this order on the foundation to manufacture the curing tank. The number of construction days at the site can be greatly shortened, and since the joint material is filled in the fitting gap between the side wall panel and the column, expansion and contraction of the side wall panel due to thermal stress can be absorbed by the joint material.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 is a curing tank for heating and curing long concrete products such as columns and piles, and various members manufactured in a factory are transported to the site and assembled on a precast concrete foundation 2 to form them. It is a thing.

A frame member 3 made of H-shaped steel is laid in a rectangular shape and fixed on a concrete foundation 2 to form a frame member 4 at the bottom of the curing tank 1. At the four corners of the frame body 4, there are recesses for fitting side wall panels, which will be described later. [Stands 5a made of shaped steel are erected, and also on each side of the frame member 4, side wall panels, which will be described later, are fitted Pillars 5b made of H-shaped steel having concave portions are erected at appropriate intervals. At this time, each pillar 5a, so that the side wall panel can be fitted between the adjacent pillars 5a, 5b.
Arrange so that the concave portions of 5b face each other. 6
Is a side wall panel fitted between the adjacent columns 5a and 5b, and this side wall panel 6 is also manufactured in advance in a factory. The side wall panel 6 is made of reinforced concrete and has an appropriate thickness according to the degree of heat insulation. However, in order to further improve the heat insulation effect, reinforced concrete plates may be used for both walls and a heat insulating material may be filled between them. .

The side wall panel 6 is fitted with a slight gap provided between the recesses of the columns 5a and 5b, and a silicone rubber joint material 7 is filled in this gap to seal the gap.

Reference numeral 8 denotes a steam pipe for supplying steam for heating, which is arranged at the bottom of the curing tank 1 and is connected to an external boiler (not shown). Reference numeral 9 is a drainage groove provided for draining water vapor drainage during heating, and 10 is a pillow material made of H-shaped steel for supporting a concrete product during curing.

Then, when the curing tank 1 is manufactured, the frame member 3, the columns 5a and 5b, and the side wall panel 6 are manufactured in advance in a manufacturing factory. In parallel with this, the foundation 2 is constructed at the place where the local curing tank 1 is installed, and after the foundation is completed, the frame material 3, the pillars 5a, 5b and the side wall panel 6 manufactured in the factory are transported to the site. To do. Then, the frame member 3 is laid in a rectangular shape and fixed on the foundation 2 to form the bottom of the curing tank 1. Then frame 4
The columns 5a and 5b are erected on the top at appropriate intervals, and then the side wall panels 6 are fitted one after another between the columns 5a and 5b adjacent to each other.
If the joint material 7 is filled in the gap between the side walls 5 and the side wall panel 6, the installation is completed.

[Effects of the Invention] As described above, according to the concrete product curing tank of the present invention, the frame member 3 laid in a square shape on the foundation, and the columns 5a and 5b standing upright at appropriate intervals on the frame member. Since the curing tank is configured by the side wall panel 6 fitted between the columns, it is possible to systematically manufacture these members in advance in the manufacturing plant, and at the local curing tank installation place, A curing tank can be easily created simply by assembling the members of, and the number of construction days on site can be greatly reduced. Further, since the joint material 7 having elasticity is filled in the gap between the side wall panel 6 and the columns 5a and 5b, the temperature of the side wall panel is largely changed during the heat curing of the concrete product, and the thermal stress is generated in the side wall panel. Even if the expansion and contraction of the side wall panel 6 is not hindered, cracking due to thermal stress can be prevented.

[Brief description of drawings]

1 is a front view of a curing tank according to the present invention, FIG. 2 is a partially cutaway plan view of FIG. 1, and FIG. 3 is a partially enlarged view of FIG. 1 ... Curing tank, 2 ... Foundation, 3 ... Frame material, 4 ... Frame body, 5a, 5b
… Supports, 6… Sidewall panels, 7… Joint materials

Claims (1)

[Scope of utility model registration request] 1. A box shape comprising a frame member laid in a square shape on a foundation, columns provided upright at appropriate intervals on the frame member, and side wall panels fitted with a slight gap between the columns. And a space for filling the joint between the side wall panel and the support with a joint material.