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Acoustic shielding backing plate and concrete thereof

A sound barrier and concrete technology, which is applied in construction, noise absorption devices, etc., can solve problems such as noise pollution, the inability to arrange steel bars on the back panel, large fluctuations in product size and performance, etc., and achieve high safety, enhanced support stability and Excellent sound insulation effect and durability

Pending Publication Date: 2017-12-08
SICHUAN SHUANGTIE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pouring molding process has disadvantages such as low degree of automation, low production efficiency, large fluctuations in product size and performance, serious noise pollution, and serious air pollution; Security is not guaranteed

Method used

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  • Acoustic shielding backing plate and concrete thereof
  • Acoustic shielding backing plate and concrete thereof
  • Acoustic shielding backing plate and concrete thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a concrete for the sound barrier backboard, the raw materials of which include 15 parts of salt cement, 40 parts of stone, 20 parts of natural sand, 10 parts of admixture, 0.5 part of steel fiber, and polycarboxylate superplasticizer 0.05 parts, 0.05 parts of water-retaining agent, 0.05 parts of retarder, 0.05 parts of early strength agent, 0.08 parts of toughening agent, 0.02 parts of efflorescence inhibitor, and 0.2 parts of expansion agent;

[0031] The structure of the sound barrier backboard 100 prepared in this embodiment is as follows:

[0032] as attached figure 1 And attached figure 2 As shown, a strip-type backplane body 110 is included. In this embodiment, in consideration of reducing its own weight, preferably, the backplane body 110 is provided with a sound insulation groove 120, and the location of the sound insulation groove 120 is not specifically limited, as preferably, the sound insulation groove 120 is arranged along the ba...

Embodiment 2

[0040] This embodiment provides a concrete for the sound barrier backboard, the raw materials of which include 15 parts of sulphoaluminate cement, 60 parts of ceramsite, 30 parts of machine-made sand, 15 parts of admixture, 3 parts of polypropylene fiber, polycarboxylic acid 0.5 parts of high-efficiency superplasticizer, 0.5 parts of water-retaining agent, 0.1 part of retarder, 0.25 parts of early strength agent, 0.05 parts of toughening agent, 0.02 parts of efflorescence inhibitor, and 0.08 parts of expansion agent;

[0041] For the structure of the sound barrier backboard 100 prepared in this embodiment, please refer to Embodiment 1.

Embodiment 3

[0043] This embodiment provides a concrete for a sound barrier backboard, the raw materials of which include 12 parts of magnesite cementitious material, 50 parts of ceramsite, 25 parts of vitrified microspheres, 12 parts of admixture, 2 parts of lignin fiber, 0.25 parts of carboxylic acid superplasticizer, 0.25 parts of water-retaining agent, 0.1 part of retarder, 0.25 parts of early strength agent, 0.05 part of toughening agent, 0.02 part of efflorescence inhibitor, and 0.08 part of expansion agent;

[0044] For the structure of the sound barrier backboard 100 prepared in this embodiment, please refer to Embodiment 1.

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Abstract

The invention relates to the technical field of construction materials, and provides an acoustic shielding backing plate and concrete thereof. The concrete is prepared from the following raw materials: a gelling material, aggregate, admixture, fibers and an additive, and has excellent durable mechanical performance. The acoustic shielding backing plate comprises a backing plate body, wherein an acoustic shielding slot is formed in the backing plate body along the length direction of the backing plate body, and first lightening holes are respectively formed in the bottom wall, first side wall and second side wall of the acoustic shielding slot along the length direction of the backing plate body; a male groove and a female groove are respectively formed in the side, far from the acoustic shielding slot, of the first side wall and the second side wall along the length direction of the backing plate body, and are matched in shapes; reinforcing holes are formed in the first side wall, the second side wall and a stiffener; and the impact resistance and bending strength of the backing plate can be remarkably reinforced by implanting reinforcing ribs, injecting a grouting material and plugging a grouting socket with concrete, and the durability and the stability can be greatly improved, and the absolute safety of the backing plate can be guaranteed. The acoustic shielding backing plate has an excellent supporting effect and an acoustic shielding effect.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to concrete for a sound barrier backboard and the sound barrier backboard. Background technique [0002] Sound barriers, also known as sound insulation walls, refer to wall structures set up beside railways and roads to reduce the impact of driving noise on nearby residents. They are mainly used for roads, expressways, elevated composite roads and other noises. source noise reduction. [0003] Sound Barrier The sound-absorbing panels are mounted on the back panel and together form the sound barrier slats. The sound barrier slats are then installed between two adjacent columns to form a continuous sound insulation belt. [0004] Sound waves pass through the loose and porous sound-absorbing panel from the inside of the traffic line, causing the skeleton particles of the sound-absorbing panel to vibrate mechanically. During this process, part of the energy of ...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B28/06C04B28/30E01F8/00
CPCE01F8/0005C04B28/04C04B28/06C04B28/30C04B2111/52C04B2111/20C04B2201/52C04B2201/50C04B14/02C04B14/06C04B14/48C04B2103/302C04B2103/465C04B2103/22C04B2103/10C04B2103/0068C04B18/027C04B16/0633C04B14/24C04B18/26
Inventor 熊伟余中华
Owner SICHUAN SHUANGTIE TECH CO LTD
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