JP2012215400A - Manufacturing method of test piece for adhesive for hole-in anchor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a test piece for an adhesive for a hole-in anchor, capable of easily manufacturing the test piece for the adhesive by a simple procedure under a condition almost same as that of a real work and capable of being preferably used for a test for presuming adhesive property such as adhesive intensity and quality in a site work state.SOLUTION: A sample block body 1 in which a groove part 8 is obtained in each of separated block pieces 6 and a kneading tool 2 for crushing an adhesive encapsulating capsule 9 to be inserted into a sample drilled hole 4 and kneading the adhesive are prepared, by forming the sample drilled hole 4 in accordance with the specification of a hole-in anchor. Then, the adhesive encapsulating capsule is inserted into the sample drilled hole, and the capsule is crushed and kneaded by the kneading tool. Then, the block pieces are separated from each other and the adhesive containing capsule pieces after kneaded is collected as a sample from the groove part, and then the sample is filled in a mold for producing a test piece and hardened to produce the test piece to be used for testing.

Description

  The present invention is capable of easily producing a test specimen of an adhesive in a simple procedure under almost the same conditions as those of the execution work, and for estimating the adhesive performance such as the strength and quality of the adhesive in the on-site construction state. The present invention relates to a method for preparing a test body for an adhesive for post-construction anchors that can be preferably used for testing.

  In the construction of post-installed anchors, which are fixed to the drilling holes formed on the housing surface via an adhesive, an adhesive-encapsulated capsule encapsulating the adhesive is inserted into the drilling hole, and the capsules are crushed and bonded by the anchors in the drilling holes. I am trying to mix the agent.

  An adhesive agent consists of various materials, such as cement and water, for example, and when these various materials enclosed with the capsule are kneaded with an anchor, adhesive performance is exhibited. When confirming the adhesive performance such as strength and quality of the adhesive itself, a test specimen is prepared from the adhesive kneaded with sufficient time, and various tests are performed using this test specimen.

  By the way, in the actual construction, unlike the case where the specimen is prepared as described above, the kneading of the adhesive is completed in a short time until the anchor is driven into the drilling hole, and the crushed capsule pieces are It is mixed. Accordingly, the adhesive performance such as strength and quality of the adhesive obtained by actual on-site construction is different from the adhesive performance of the adhesive itself by various tests.

  Patent Literature 1 and Patent Literature 2 are known as techniques for confirming the adhesive performance of an adhesive in an actual construction state on site.

  The “anchor bolt tensile strength inspection tool in seismic reinforcement work” of Patent Document 1 is provided with a friction welding bolt drawing jig composed of a friction welding bolt, a bolt tensile strength testing coupler, and a tension bar. Through the non-destructive testing of high-performance, multi-functional anchor bolts at construction sites.

  The “anchor shear tester” of Patent Document 2 has a main body portion arranged along the surface of the housing and a projecting portion projecting from the main body portion in a direction perpendicular to the housing surface. A bearing plate that can be detachably connected to the exposed portion exposed from the surface of the anchor body, a reaction force table that is detachably fixed to the surface of the housing by a fixed anchor, and is placed on the reaction force table The anchor shear includes a driving source that applies a reaction force to the reaction force table and applies a driving force along the surface of the housing to the projecting portion of the bearing plate, and a load measuring device that measures a load by the driving source. A testing machine is used.

JP 2001-50877 A JP 2005-283224 A

  Performing the confirmation test of the adhesive performance such as the strength and quality of the adhesive in the construction work at the site has a problem that it takes a lot of labor and labor, including the installation and installation of the testing machine.

  The present invention was devised in view of the above-described conventional problems, and it is possible to easily prepare a test specimen of an adhesive by a simple procedure under substantially the same conditions as those of an execution work. It aims at providing the test body preparation method of the adhesive agent for post-installation anchors which can be preferably used for the test for estimating adhesive performance, such as an intensity | strength and quality of an agent.

  The test specimen preparation method of the adhesive for post-installation anchor according to the present invention is obtained when the adhesive-encapsulated capsule inserted into the drilling hole is crushed and kneaded in order to fix the post-installed anchor to the drilling hole. This is a method for preparing a specimen for adhesives for post-installation anchors for preparing a test body using a sample of the adhesive after mixing, including crushed capsule pieces, and forming a block piece by dividing a single block Then, these block pieces are joined at the parting position so as to be separably joined to form a reclaimed block, and at the parting boundary position of the reclaimed block, a test drill hole is formed according to the specifications of the post-construction anchor, A test block body in which a groove is obtained in each of the block pieces by separating the regenerated block into the block pieces, and an adhesive encapsulating capsule that is inserted into the test hole, Preparing a kneading tool for kneading, then inserting an adhesive-encapsulated capsule into the test hole, crushing the capsule with the kneading tool and kneading the adhesive, The block piece is separated, and the mixed adhesive containing the capsule piece is taken as a sample from the groove, and then the sample is filled in a mold for preparing a test specimen and cured to be used for the test. It is characterized by producing a test body for the purpose.

  In the method for preparing an adhesive specimen for post-construction anchor according to the present invention, an adhesive specimen can be easily produced in a simple procedure under almost the same conditions as in the construction work. It can be preferably used in a test for inferring adhesive performance such as strength and quality of the adhesive.

It is explanatory drawing explaining the test block body used for suitable one Embodiment of the test body preparation method of the adhesive agent for post-construction anchors concerning this invention. It is a schematic perspective view which shows one method of reproducing a test drilling hole combining the test block body shown in FIG. It is a schematic perspective view which shows the preparatory stage which crushes and mixes the adhesive agent enclosure capsule in suitable one Embodiment of the test body preparation method of the adhesive agent for post-installation anchors which concerns on this invention with a kneading tool. It is a schematic perspective view which shows a mode that the sample of an adhesive agent is extract | collected from the groove part of the block body of the test block body shown in FIG. It is a schematic perspective view which shows a mode that the sample extract | collected in FIG. 4 was filled in the mold. It is a schematic perspective view which shows the test body hardened | cured with the formwork of FIG.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of a method for preparing a specimen for an adhesive for post-construction anchor according to the present invention will be described in detail with reference to the accompanying drawings. 1 to 6 sequentially show the procedure of the method for preparing a test specimen for post-installed anchor according to the present embodiment. In the post-construction anchor adhesive test body manufacturing method according to the present embodiment, first, the test block body 1 and the kneading tool 2 are prepared.

  FIG. 1 shows a procedure for producing the test block body 1. The test block body 1 is used to form a test hole 4 for producing the test body 3 (see FIG. 6) with the same dimensions as the hole provided in the housing in the construction work. First, a solid single block 5 is prepared (see (a) in FIG. 1). The single block 5 may be in any form, but is preferably a rectangular parallelepiped shape or a cylindrical shape as shown in view of handleability. The single block 5 is formed of a metal material or a synthetic resin material such as FRP.

  The single block 5 is divided substantially at the center thereof, thereby forming two block pieces 6 having divided sections 6a facing each other (see (b) in FIG. 1). Next, these block pieces 6 are combined with the state before dividing the divided sections 6a, which are the divided portions, and then welded (indicated by w in the figure), bonded, or bound. The block pieces 6 are joined to each other so as to be separable, thereby forming the reproduction block 7 (see (c) in FIG. 1). The reproduction block 7 has a dividing boundary B formed at the abutting position between the divided sections 6a by combining the block pieces 6 with each other.

  Next, any flat surface of the regenerated block 7 is selected, and a test hole 4 is formed at the dividing boundary B position of the selected flat surface in accordance with the specifications of the post-construction anchor ((d) in FIG. 1). reference).

  Post-installed anchors are formed with various dimensions in accordance with the standard, and therefore, the drill holes formed by the practical work are formed with various dimensions according to the post-installed anchors of various dimensions. The test hole 4 for test specimen preparation formed in the reclaimed block 7 has the same dimensions as any of the post-construction anchors used in the execution work, in other words, any of the drill holes formed in the execution work. It is formed. Accordingly, a plurality of types of reclaimed blocks 7 in which the test hole 4 is formed are created for each post-installed anchor standard or each hole size.

  The test block body 1 is completed when the test hole 4 is formed in the regenerated block 7. In the test block 1, by separating the integrated reproduction block 7 into block pieces 6, groove portions 8 are obtained in the respective divided sections 6 a by the test cutting holes 4 formed in the block pieces 6. It has a structure (see (e) in FIG. 1). When the test body 3 is produced, the test block body 1 may be used in a state in which it is welded, bonded, bound, or the like, or removed from the joint and used in the form of a block piece 6. Also good.

  The test hole 4 corresponds to a hole in the execution work in which the post-installed anchor is fixed in the execution work and the adhesive encapsulating capsule 9 is inserted in order to secure the fixation. As shown in FIG. 3, the kneading tool 2 is used for crushing the adhesive-encapsulated capsule 9 inserted into the test hole 4 and kneading the adhesive in the test hole 4 as in the case of the working. Used. The kneading tool 2 may use an anchor used for the execution work.

  When the test block body 1 and the kneading tool 2 are prepared, the test body 3 is prepared using the adhesive-encapsulated capsule 9. When the test block 1 is separated into the block pieces 6, the block pieces 6 are assembled with the jig 10 as shown in FIG.

  The jig 10 illustrated in FIG. 2 has an L-shaped surface plate 10a that defines the position of the bottom surface and one side surface of the test block body 1 produced from the single block 5 having a rectangular parallelepiped shape, and the surface plate 10a. A restraint plate piece 10b applied to the test block body 1 from the other side opposite to the regulated one side surface, and a fastening means 10c comprising a rod and a nut for fastening the restraint plate piece 10b to the surface plate 10a. Has been.

  The illustrated jig 10 is merely an example, and any jig having any configuration can be used as long as the test hole 4 can be reproduced by assembling the block piece 6 and integrating the test block body 1. Of course there may be. As described above, the test block body 1 in which the block pieces 6 in a state where the test hole 4 has been formed and being separably joined may be used.

  Next, as shown in FIG. 3, the adhesive-encapsulated capsule 9 is inserted into the test hole 4 of the test block body 1, and the capsule is crushed with the kneader 2 and the adhesive is kneaded. The kneading is performed in accordance with the kneading mode in the working construction. The adhesive may be either inorganic or organic.

  Next, as shown in FIG. 4, the test block 1 is separated into block pieces 6. In the separated groove portion 8 of each block piece 6, the adhesive A after kneading including the crushed capsule pieces is collected. The state of kneading can be visually confirmed from the accumulated adhesive A.

  Using the collected adhesive A as a sample, scoop it out with a spoon 11 from the groove 8 and collect it. When sampling, the same applies to the execution work. However, since the kneading tool 2 is difficult to reach and is open to the outside, the bottom of the test hole 4 and the sample are not sufficiently mixed with the adhesive. It is preferable not to collect the adhesive around the opening of the test hole 4. Thereby, the adhesive A kneaded uniformly can be used as a sample.

  Next, as shown in FIG. 5, the collected sample of adhesive A is filled in a mold 12 for preparing a test specimen, cured, and then demolded. As a result, as shown in FIG. 6, a test body 3 is prepared for use in a test for adhesive performance such as the strength and quality of the adhesive (for example, a compression test). In the illustrated example, the prismatic test body 3 is illustrated, but it is needless to say that various other types of test bodies such as a columnar shape may be manufactured.

  In the test body preparation method of the adhesive for post-construction anchors according to the present embodiment described above, the single block 5 is divided to form the block pieces 6, and these block pieces 6 are combined at the division points. Recycled block 7 is formed by joining in a separable manner, and test drilling holes 4 are formed in accordance with the specifications of the post-construction anchor at the dividing boundary B position of the regenerated block 7, and the regenerated block 7 is separated into block pieces 6. The test block body 1 in which the groove 8 is obtained in each of the block pieces 6 and the kneading tool 2 for crushing the adhesive-encapsulated capsule 9 inserted into the test hole 4 and kneading the adhesive Then, an adhesive-encapsulated capsule 9 is inserted into the test hole 4, the capsule is crushed with the kneader 2 and the adhesive is kneaded, and then the block piece 6 is separated. ,capsule Specimen for collecting the adhesive A after mixing from the groove 8 as a sample, filling the specimen A in the mold 12 for preparation of the specimen, and curing it. 3 can be produced easily in a simple procedure under the same conditions as the construction work at the laboratory level, with the same procedure as the construction work. Compared to the case where a test machine is carried in and installed, and the confirmation test of the adhesive performance of the adhesive is performed, the produced test body 3 is used to bond the strength and quality of the adhesive in the on-site construction state. Tests for inferring performance can be performed appropriately.

DESCRIPTION OF SYMBOLS 1 Test block body 2 Mixing tool 3 Test body 4 Test drilling hole 5 Single block 6 Block piece 7 Reproduction block 8 Groove part 9 Adhesive enclosure capsule 12 Formwork A Adhesion after kneading including the crushed capsule piece Agent B Split boundary

Claims (1)

In order to fix the post-installed anchor in the drilling hole, the adhesive-containing capsule containing the crushed capsule pieces obtained by crushing and mixing the adhesive-encapsulated capsule inserted in the drilling hole was used as a sample. It is a test body preparation method of an adhesive for post-construction anchor for manufacturing a test body,
A single block is divided to form block pieces, and these block pieces are joined together at the division points so as to be separable to form a reproduction block, and the post-installed anchor standard is located at the division boundary position of the reproduction block. A test block body in which a groove is obtained in each of the block pieces by forming a test hole in accordance with the block and separating the regenerated block into the block pieces, and containing an adhesive inserted into the test hole Prepare a kneading tool for crushing the capsule and kneading the adhesive,
Next, an adhesive-encapsulated capsule is inserted into the test hole, and the capsule is crushed with the kneading tool and the adhesive is kneaded,
Next, the block piece is separated, and the adhesive after kneading including the capsule piece is taken as a sample from the groove,
Next, a test body preparation method for an adhesive for post-installation anchors, wherein the sample is filled in a mold for preparing a test body and cured to prepare a test body for use in a test.

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