JP3210902B2 - Anchor bolt fixing capsule sealed with paraffin wax - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a capsule for fixing an anchor bolt for use in a post-installed anchor, and more particularly to a capsule for fixing an anchor bolt suitable for a driving method. The anchor bolt means a full-thread bolt, deformed steel bar, or the like used for a post-installed anchor.

[0002]

2. Description of the Related Art Conventionally, a curable resin component layer and a hardener component layer comprising a destructible capsule and a curable resin component filled in the capsule via a separation layer, and a powdery or granular hardener component. For anchor anchoring, each of which is alternately filled with two or more layers (Japanese Patent Laid-Open No. 9-8849).
No. 8) is a cylindrical glass container, and the upper portion is sealed by heating and melting.

[0003]

The method using the fusion sealing may cause an explosion accident or a fire accident during the production, and it requires great care in eliminating the danger of work. At present, the fire sensitivity of the contents is reduced, or the filling ratio in the capsule is reduced to increase the useless space so that the contents do not affect the fire, but the performance of the product decreases,
There is also a possibility that the capsule may be too long or a useless space may become a void after embedding the anchor. In addition, there is a problem that expensive equipment and advanced technology for sealing are required.

If the sealing is performed before the separation layer is formed, immediately after the capsule is cooled, the internal pressure of the capsule is reduced, so that the curable resin component excessively penetrates into the hardener component layer, and the curable resin is hardened. The separation layer cured and molded by the reaction between the resin and the curing agent becomes thicker. As a result, the curable resin and the curing agent are both wasted and consumed, and the driving resistance of the anchor bolt increases. For this reason, sealing cannot be performed before the separation layer is formed, and the temperature and gelation time must be carefully controlled so that the separation layer can be formed quickly in order to increase production efficiency. there were.

[0005] In addition, since there is an excessive space inside the capsule, there is a problem that glass fragments are scattered when the anchor bolt is driven.

[0006]

DISCLOSURE OF THE INVENTION The present inventors have found that a glass tube anchor fixing capsule filled with contents is filled with easily crushable paraffin wax and sealed, so that the crushability is improved and the density is improved. The present inventors have found that capsules filled with a can be produced safely, easily, inexpensively and efficiently, and completed the present invention.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, paraffin wax has a melting point of 45 to 110 ° C and a penetration at 25 ° C of 5 to 36. The aggregate should use inorganic or organic fillers such as silica sand, quartz, white carbon, carbon black, talc, silica, calcium carbonate, limestone, gypsum, magnesia clinker, glass beads, resin particles, and metal particles. These may be surface-treated with a silane-based or titanate-based coupling agent, or may be used in combination with these coupling agents. Embodiments of the present invention will be described based on examples with reference to the drawings.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG.
An unsaturated polyester resin 1 and a curing agent 2 are alternately filled in a glass tube 4 having a bottom of 0 mm, and 2.5 g of glass beads 5 having an average particle diameter of 0.3 mm are further filled as an aggregate.
Then, 0.65 g of paraffin wax 6 (melting point: 61 ° C.) melted at 69 ° C. was filled therein, cooled and solidified to seal the opening of the glass tube, thereby producing a drive-in type anchor bolt fixing capsule. Here, the filling amount was determined such that the weight ratio of the unsaturated polyester resin and the curing agent per layer was 2: 1. The number of layers was four each.
Next, a hole diameter 19 mm and a hole depth 130 were formed on a transparent resin molded product.
A hole for M16 mm was drilled, and the capsule was inserted into the hole so that the paraffin wax filling portion became the hole opening. It was clearly confirmed that there was no scattering of glass fragments and there was no problem with the impact resistance, and that the paraffin wax was uniformly ground and mixed.

[0009]

The present invention is embodied in the form described above and has the following effects.

Since expensive equipment such as a sealing device and advanced technology are not required, capsules can be manufactured easily at low cost.

Further, since fire is not used, it is safe.

Since the sealing can be performed before the separation layer is formed,
Production efficiency is improved.

Further, since the contents can be densely filled without using a wasteful space, the size of the capsule can be reduced and the cost can be reduced.

Further, scattering of glass fragments generated at the time of anchor bolt construction is small.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a drive-in capsule sealed with paraffin wax.

FIG. 2 is a sectional view of a drive-in capsule sealed by sealing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unsaturated polyester resin 2 Curing agent 3 Separation layer 4 Glass tube 5 Glass beads 6 Paraffin wax 7 Sealing

Claims (2)

(57) [Claims] 1. A destructible capsule, comprising a curable resin component filled in a capsule via a separation layer, and a powdery or granular curing agent component, wherein the curable resin component layer and the curing agent component layer are A capsule for anchor bolt anchoring, characterized in that molten paraffin wax is filled in the upper part of the anchor anchor capsule which is alternately filled with two or more layers and cooled and solidified with paraffin wax. 2. An anchor bolt fixing capsule according to claim 1, wherein an aggregate component which functions as a heat insulating material so that the melted paraffin wax does not have an effect even when touched directly is filled under the paraffin wax.