CN-224216487-U - Special strength resiliometer for high-doping-amount mineral admixture concrete

Abstract

The utility model relates to the technical field of resiliometers, in particular to a special strength resiliometer for high-doping-amount mineral admixture concrete. Its technical scheme includes resiliometer main part and reading board, resiliometer main part upper surface fixed mounting has the reading board, reading board upper surface viewing aperture, reading board upper surface is located viewing aperture both sides position department and all is provided with the scale mark, reading board upper surface is close to two scale mark positions department and is provided with fixed digital scale and spout respectively, the inside slidable mounting of spout has the slider, slider upper surface fixed mounting has the sliding plate, sliding plate upper surface is provided with the slip digital scale. The utility model can adjust the reading scale on the traditional resiliometer to adapt to the strength of the large-doped mineral admixture concrete, reduce the detection error and improve the reliability of the strength evaluation of the large-doped mineral admixture concrete.

Inventors

• FU CHUNLEI
• JIANG CHENGJUN
• WANG MING
• CHENG HUI
• REN WENHAI
• HUANG LIANG
• ZHOU QIAO
• LUO YI
• YANG YANAN

Assignees

• 重庆砼磊高新混凝土有限公司

Dates

Publication Date

20260508

Application Date

20250521

Claims (5)

1. 1. The special strength resiliometer for the large-doping-amount mineral admixture concrete comprises a resiliometer main body (1) and a reading plate (2), and is characterized in that the reading plate (2) is fixedly arranged on the upper surface of the resiliometer main body (1), a viewing port (5) is formed in the upper surface of the reading plate (2), scale marks (7) are arranged on the positions, located on two sides of the viewing port (5), of the upper surface of the reading plate (2), fixed digital scales (4) and sliding grooves (8) are respectively arranged at positions, close to the two scale marks (7), of the upper surface of the reading plate (2), sliding blocks (11) are slidably arranged in the sliding grooves (8), sliding plates (3) are fixedly arranged on the upper surface of the sliding blocks (11), and sliding digital scales (10) are arranged on the upper surface of the sliding plates (3).
2. 2. The special strength rebound tester for the high-doped mineral admixture concrete, which is disclosed in claim 1, is characterized in that a transparent plate (6) is fixedly arranged in the observation port (5).
3. 3. The special strength rebound tester for the high-doped mineral admixture concrete, which is disclosed in claim 1, is characterized in that a magnetic suction plate (9) is fixedly arranged at the bottom of the inner wall of the chute (8), and the sliding block (11) is fixed in the chute (8) through magnetic attraction between the sliding block and the magnetic suction plate (9).
4. 4. The special strength rebound instrument for the high-doping-amount mineral admixture concrete is characterized in that a threaded hole (12) is formed in the upper surface of the sliding block (11), a screw rod (13) is movably inserted into the threaded hole (12), one end of the screw rod (13) located outside the sliding groove (8) is fixedly connected with a knob (14), and one end of the screw rod (13) located inside the sliding groove (8) is in contact with the upper surface of the magnetic suction plate (9).
5. 5. The special strength rebound tester for the high-doping amount mineral admixture concrete, which is disclosed in claim 4, is characterized in that the sliding groove (8) is a dovetail groove, and the sliding block (11) is a dovetail block.

Description

Special strength resiliometer for high-doping-amount mineral admixture concrete Technical Field The utility model relates to the technical field of resiliometers, in particular to a special strength resiliometer for high-doped mineral admixture concrete. Background Along with the continuous deep development concept at present, the application of the concrete with a large amount of mineral admixture in building engineering is more and more paid attention to, and the mineral admixture such as fly ash, slag powder and the like has the advantages of reducing the cement consumption, reducing the environmental pollution, improving the durability of the concrete and the like, and the application of the concrete produced by adopting the mineral admixture with a large amount of mineral admixture in large infrastructure construction and green building projects has become a trend. The existing rebound method for detecting the strength of concrete is a common means for detecting the strength of a solid structure at present, has certain reliability for traditional concrete, but has the defects for high-doped mineral admixture concrete, and mainly has the following problems that firstly, the rebound method is used for estimating the compressive strength according to the surface hardness of the concrete, the main influencing factors of the rebound method are the surface carbonization depth and hydration degree of a concrete member, and the concrete is correspondingly and rapidly reduced in evaluating strength along with the increase of the carbonization depth, so that the accuracy of carbonization measurement is crucial, the hydration reaction of the admixture can reduce the alkalinity of the concrete for the high-doped mineral admixture concrete, but the generated substances do not enhance the concrete hardness, so that the phenomenon of 'false carbonization' of the concrete is caused, and meanwhile, in a wet environment, the high-doped mineral admixture concrete carbonization depth is not increased, the phenomenon of're-alkalization' appears, and secondly, the concrete surface cement is not hydrated or hydrated degree is not sufficient because the concrete surface cement is not cured or is not cured in time and is not in place after the high-doped mineral admixture concrete is poured, the concrete surface is almost has 'Ca (OH) 2', the existence of the concrete surface is very low, the accuracy of carbonization value is very low, the rebound value is not estimated, and the rebound value is a special for the concrete is further high, and the rebound value is a low, and the concrete is a high-doped value is carbonized. Disclosure of utility model The utility model aims to provide a special strength rebound instrument for a large-amount mineral admixture concrete, which has the advantages of being capable of adapting to the strength of the large-amount mineral admixture concrete by adjusting the reading scale on the traditional rebound instrument, reducing the detection error, improving the reliability of the strength evaluation of the large-amount mineral admixture concrete and solving the problem that the intensity value reading on the traditional rebound instrument has larger detection error relative to the strength detection of the large-amount mineral admixture concrete. The special strength rebound instrument for the high-doping-amount mineral admixture concrete comprises a rebound instrument main body and a reading plate, wherein the reading plate is fixedly arranged on the upper surface of the rebound instrument main body, scale marks are arranged on the upper surface of the reading plate at positions of two sides of the observation port, fixed digital scales and sliding grooves are respectively arranged on the upper surface of the reading plate, which is close to the positions of the two scale marks, a sliding block is slidably arranged in the sliding groove, a sliding plate is fixedly arranged on the upper surface of the sliding block, and sliding digital scales are arranged on the upper surface of the sliding plate. Preferably, the inside fixed mounting of viewing aperture has the transparent plate, and the transparent plate plays sealed effect to the viewing aperture, sees through the transparent plate and can observe the pointer on the resiliometer main part to correspond the scale mark and read. Preferably, the bottom of the inner wall of the chute is fixedly provided with a magnetic attraction plate, the sliding block is fixed in the chute through magnetic attraction between the sliding block and the magnetic attraction plate, and the moving sliding plate can be quickly fixed through the magnetic attraction between the magnetic attraction plate and the sliding block. Preferably, the upper surface of the sliding block is provided with a threaded hole, a screw is movably inserted into the threaded hole, a knob is fixedly connected with one end of the screw, which is positioned outside the sliding groove, and o