Mold for preparing high-turnover-rate test piece in concrete shrinkage test

Abstract

The utility model relates to a high-turnover-rate test piece preparation mold for a concrete shrinkage test. The high-turnover-rate test piece preparation mold comprises a template temporary fixing piece, a unit assembling mold and a template base, sliding grooves are formed in the two sides of the formwork base, a plurality of rows of inserting holes are symmetrically formed in the two sides of each sliding groove, and the two temporary formwork fixing pieces are installed on the sliding grooves. The template temporary fixing piece has the advantages that the template temporary fixing piece is ingenious in design, rapid positioning and temporary fixing of a mold can be achieved through the fixing ring plate and the L-shaped inserting rod, template splicing construction efficiency is greatly improved, and construction cost is saved; according to the template base, a template can be rapidly installed through the base and the sliding groove, the size precision and shape stability of a test piece are guaranteed, it is guaranteed that the geometric dimension of the test piece meets the standard, and the reliability and consistency of test results are improved.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering, and in particular to a mold for preparing high turnover rate specimens for concrete shrinkage testing. Background Technology

[0002] Concrete shrinkage testing is an important method for evaluating the durability and quality of concrete. With the rapid development of the construction industry and infrastructure development, the amount of concrete used is increasing daily, and the requirements for its performance are also becoming more stringent. Concrete shrinkage testing is a crucial step in ensuring the safety and durability of concrete structures. However, traditional specimen preparation methods are inefficient, hindering the efficient conduct of the tests. Therefore, the development of high-turnover specimen preparation molds is imperative.

[0003] Traditional concrete shrinkage tests often employ time-consuming methods, failing to meet the high efficiency requirements of modern engineering construction. High-turnover-rate concrete shrinkage testing can significantly improve efficiency, providing more timely and accurate data support for engineering design. However, existing concrete shrinkage test molds suffer from numerous problems under high-turnover-rate testing conditions, such as difficult mold disassembly, time-consuming cleaning, and susceptibility to deformation, severely hindering the widespread application of high-turnover-rate testing. To address these issues, it is necessary to develop high-turnover-rate specimen preparation molds to improve testing efficiency, reduce costs, and ensure the accuracy of test results.

[0004] The present invention aims to develop a high turnover rate specimen preparation mold to overcome the shortcomings of traditional specimen preparation methods and provide an efficient, low-cost, and accurate specimen preparation solution for concrete shrinkage testing. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a high turnover rate specimen preparation mold for concrete shrinkage testing.

[0006] This high-turnover specimen preparation mold for concrete shrinkage testing includes: temporary template fixing components, unit assembly molds, and template bases; the template bases have grooves on both sides, and multiple rows of insertion holes are symmetrically arranged on both sides of the grooves, with two temporary template fixing components installed on the grooves;

[0007] The template base has a base at the top center. The unit assembly mold includes vertical rods and semi-circular unit molds. Two vertical rods are installed on the temporary template fixing parts. The two semi-circular unit molds are put together to form a cylindrical mold. The cylindrical mold is inserted into the base. The cylindrical mold is installed between the two vertical rods through a horizontal rod for specimen casting.

[0008] Preferably, the unit assembly mold is used for specimen casting and includes: a vertical rod, a semi-circular unit mold, ear plate reserved holes, and splicing ear plates. A horizontal rod is provided on the outer side of the semi-circular unit mold, and the horizontal rod is connected to the inner side of the vertical rod. The semi-circular unit mold is symmetrically provided with splicing ear plates at both ends. The side of the splicing ear plates is provided with multiple rows of ear plate reserved holes. The splicing ear plates of the semi-circular unit mold form a whole at the splicing point and are fixed with U-shaped plug-in fixing bolts.

[0009] Preferably, after the splicing ear plates are spliced ​​together at the splicing point, U-shaped plug-in fixing bolts are inserted into the reserved holes of the ear plates and tightened with fixing nuts.

[0010] Preferably, the temporary template fixing component includes a fixing ring plate and an L-shaped insert rod. The fixing ring plate is symmetrically provided with L-shaped insert rods on its outer side. The bottom of the vertical rod is fitted onto the fixing ring plate, the L-shaped insert rod of the fixing ring plate rests in the insertion hole, and the vertical rod rests in the sliding groove.

[0011] Preferably, the bottom of the semi-circular unit mold is provided with a reserved insertion hole, and the outer side of the base is provided with a base reserved hole. The base reserved hole and the reserved insertion hole are connected by a plug rod and fastened with a nut.

[0012] Preferably, the base has a support hole at the top, a bottom embedded screw is pre-embedded at the bottom center of the specimen, and a top reserved hole is provided at the top of the specimen, with the bottom embedded screw resting in the support hole.

[0013] The beneficial effects of this utility model are:

[0014] 1) The high turnover rate specimen preparation mold for concrete shrinkage test involved in this utility model integrates high efficiency, durability and environmental protection, facilitates quick demolding, improves test efficiency, and at the same time ensures the dimensional accuracy of the specimen and the consistency of test results. The mold is durable and reusable, reduces material consumption and manual operation time, and significantly reduces test and operating costs.

[0015] 2) The temporary template fixing component involved in this utility model is ingeniously designed. It can achieve quick positioning and temporary fixing of the template through the fixing ring plate and L-shaped insert, which greatly improves the efficiency of template assembly and construction and saves construction costs.

[0016] 3) The unit assembly mold involved in this utility model is ingeniously designed, easy to assemble and disassemble, and can be recycled, which improves the turnover efficiency of the template. The mold can be used multiple times to meet the needs of high-frequency and multi-batch testing, shorten the test cycle, and improve the quality of the specimens, providing reliable data support for engineering and scientific research.

[0017] 4) The template base involved in this utility model can realize the rapid installation of the template through the base and the sliding groove, which ensures the dimensional accuracy and shape stability of the specimen, ensures that the geometric dimensions of the specimen meet the standards, and improves the reliability and consistency of the test results. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a mold for preparing high-turnover specimens for concrete shrinkage testing;

[0019] Figure 2 This is a schematic diagram of the elevation of a high-turnover specimen preparation mold for concrete shrinkage testing;

[0020] Figure 3 This is a 3D schematic diagram of the mold base;

[0021] Figure 4 This is a 3D schematic diagram of the detailed structure of the mold base;

[0022] Figure 5 This is a three-dimensional schematic diagram of a unit-semi-mold structure;

[0023] Figure 6 This is a three-dimensional schematic diagram of a U-shaped plug-in fixing bolt;

[0024] Figure 7 This is a schematic diagram of the specimen's elevation.

[0025] In the figure: 1-Top reserved hole, 2-Specimen, 3-Bottom pre-embedded screw, 4-Fixing ring plate, 5-Vertical rod, 6-U-shaped plug-in fixing bolt, 7-Semi-circular unit mold, 8-Ear plate reserved hole, 9-Splicing ear plate, 10-Nut, 11-Plug rod, 12-Slide groove, 13-Splicing point, 14-Base, 15-Horizontal rod, 16-Fixing nut, 17-Support hole, 18-Base reserved hole, 19-Template base, 20-Plug hole, 21-L-shaped plug rod, 22-Reserved plug hole. Detailed Implementation

[0026] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0027] Example 1

[0028] As one example, such as Figures 1 to 7As shown, this high turnover rate specimen preparation mold for concrete shrinkage test includes: temporary template fixing parts, unit assembly mold and template base 19; the template base 19 has grooves 12 on both sides, and multiple rows of insertion holes 20 are symmetrically arranged on both sides of the grooves 12, and two temporary template fixing parts are installed on the grooves 12.

[0029] like Figure 3 and Figure 4 As shown, a base 14 is provided at the top center of the template base 19. The unit assembly mold includes vertical rods 5 and semi-circular unit molds 7. Two vertical rods 5 are installed on the temporary template fixing parts. Two semi-circular unit molds 7 are closed to form a cylindrical mold. The cylindrical mold is inserted on the base 14. The cylindrical mold is installed between the two vertical rods 5 through a horizontal rod 15 for casting the specimen 2.

[0030] like Figure 5 As shown, specifically, the temporary template fixing component is used to temporarily fix the assembly mold of the unit, and it includes: a fixing ring plate 4 and an L-shaped insert 21. The fixing ring plate 4 is symmetrically provided with L-shaped inserts 21 on its outer side.

[0031] like Figure 2 and Figure 5 As shown, the unit assembly mold is used for casting specimen 2, and includes: vertical rod 5, semi-circular unit mold 7, ear plate reserved hole 8, splicing ear plate 9, and horizontal rod 15. The semi-circular unit mold 7 has a horizontal rod 15 on its outer side, and the horizontal rod 15 is connected to the inner side of the vertical rod 5. The splicing ear plate 9 of the semi-circular unit mold 7 forms a whole at the splicing point 13 and is fixed with U-shaped plug-in fixing bolts 6.

[0032] The template base 19 is used to support the unit assembly mold and includes: a slide groove 12, a base 14, a support hole 17, a base reserved hole 18, and an insertion hole 20. The top of the template base 19 is symmetrically provided with slide grooves 12, and multiple rows of insertion holes 20 are symmetrically provided on both sides of the slide grooves 12. The base 14 is provided in the center of the top of the template base 19. The top of the base 14 is provided with a support hole 17, and the outer side of the base 14 is provided with a base reserved hole 18.

[0033] Example 2

[0034] As another embodiment, this second embodiment proposes, based on the first embodiment, a more specific mold for preparing high-turnover specimens for concrete shrinkage testing:

[0035] like Figure 2 and Figure 5 As shown, the semi-circular unit mold 7 is symmetrically provided with splicing ear plates 9 at both ends. The side of the splicing ear plate 9 is provided with multiple rows of ear plate reserved holes 8. After the splicing ear plates 9 are spliced ​​together at the splicing point 13, the U-shaped plug-in fixing bolts 6 are inserted into the ear plate reserved holes 8 and tightened with fixing nuts 16.

[0036] like Figures 2 to 4 As shown, the bottom of the semi-circular unit mold 7 is provided with a reserved insertion hole 22. The bottom of the semi-circular unit mold 7 is provided with a reserved insertion hole 22, and the outer side of the base 14 is provided with a base reserved hole 18. The base reserved hole 18 and the reserved insertion hole 22 are connected by a plug rod 11 and fastened with a nut 10.

[0037] like Figures 1 to 5 As shown, the bottom of the vertical rod 5 is fitted onto the fixing ring plate 4, the L-shaped insert 21 of the fixing ring plate 4 is placed in the insertion hole 20, and the vertical rod 5 is placed in the sliding groove 12.

[0038] like Figure 3 , Figure 4 and Figure 7 As shown, the bottom pre-embedded screw 3 is located at the bottom center of the specimen 2, and the top of the specimen 2 is provided with a top reserved hole 1, and the bottom pre-embedded screw 3 is placed in the placement hole 17.

[0039] It should be noted that the parts in this embodiment that are the same as or similar to those in Embodiment 1 can be referred to each other, and will not be repeated in this application.

[0040] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

Claims

1. A high-turnover specimen preparation mold for concrete shrinkage testing, characterized in that, include: Temporary formwork fasteners, unit assembly molds, and formwork bases; the formwork bases have grooves on both sides, and multiple rows of insertion holes are symmetrically arranged on both sides of the grooves, with two temporary formwork fasteners installed on the grooves; The template base has a base at the top center. The unit assembly mold includes vertical rods and semi-circular unit molds. Two vertical rods are installed on the temporary template fixing parts. The two semi-circular unit molds are put together to form a cylindrical mold. The cylindrical mold is inserted into the base. The cylindrical mold is installed between the two vertical rods through a horizontal rod for specimen casting.

2. The high turnover rate specimen preparation mold for concrete shrinkage testing according to claim 1, characterized in that: The unit assembly mold is used for specimen casting and includes: a vertical rod, a semi-circular unit mold, ear plate reserved holes, and splicing ear plates. A horizontal rod is provided on the outer side of the semi-circular unit mold, and the horizontal rod is connected to the inner side of the vertical rod. The semi-circular unit mold is symmetrically provided with splicing ear plates at both ends. The side of the splicing ear plates is provided with multiple rows of ear plate reserved holes. The splicing ear plates of the semi-circular unit mold form a whole at the splicing point and are fixed with U-shaped plug-in fixing bolts.

3. The high turnover rate specimen preparation mold for concrete shrinkage testing according to claim 2, characterized in that: After the splicing ear plates are spliced ​​together at the splicing point, U-shaped plug-in fixing bolts are inserted into the reserved holes of the ear plates and tightened with fixing nuts.

4. The high turnover rate specimen preparation mold for concrete shrinkage testing according to claim 1, characterized in that: The temporary template fixing component includes a fixing ring plate and an L-shaped insert rod. The fixing ring plate is symmetrically provided with L-shaped insert rods on its outer side. The bottom of the vertical rod is fitted onto the fixing ring plate, the L-shaped insert rod of the fixing ring plate rests in the insertion hole, and the vertical rod rests in the sliding groove.

5. The high turnover rate specimen preparation mold for concrete shrinkage testing according to claim 1, characterized in that: The bottom of the semi-circular unit mold is provided with a reserved insertion hole, and the outer side of the base is provided with a base reserved hole. The base reserved hole and the reserved insertion hole are connected by a plug rod and tightened with a nut.

6. The high turnover rate specimen preparation mold for concrete shrinkage testing according to claim 1, characterized in that: The base has a support hole at the top, a bottom embedded screw is pre-embedded at the bottom center of the specimen, and a top reserved hole is provided at the top of the specimen. The bottom embedded screw is placed in the support hole.

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