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Inorganic high-performance thin-wall sound barrier for transportation

A high-performance, sound barrier technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of weak sound insulation effect and reduced sound insulation, and achieve fast and convenient construction and installation, weight reduction, Create handy effects

Inactive Publication Date: 2016-05-04
黄贺明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the invention has achieved a certain sound insulation effect, its formula mainly has finer sound insulation aggregate particles, and the sound insulation effect is weaker at low frequencies. In the case of high frequency sound waves, the effect is better. The casting layer of the sound insulation layer is relatively thin, and some sound waves are not reflected but penetrated and then eliminated by sound absorption, and the sound insulation volume is greatly reduced

Method used

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  • Inorganic high-performance thin-wall sound barrier for transportation
  • Inorganic high-performance thin-wall sound barrier for transportation
  • Inorganic high-performance thin-wall sound barrier for transportation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 The inorganic high-performance thin-walled sound barrier for transportation includes a plurality of columns and a plurality of wall panels 2 connected up and down between adjacent columns, and the topmost wall panel is provided with a pressure top 3 . The column includes side columns 111 arranged at the left and right ends and a plurality of central columns 112 arranged between the side columns 111, such as Figure 5 and 6 As shown, one end of the side column 111 and the left and right ends of the center column 112 are provided with slots for placing the wall panels 2 . Such as Figure 8 As shown, the top pressing 3 is provided with a slot 311 adapted to the convex groove of the topmost wallboard. Such as figure 2 , 3 As shown in and 4, the upper and lower ends of the wallboard 2 are respectively provided with grooves and convex grooves, the grooves are spliced ​​correspondingly with the convex grooves of adjacent wallboards, and the convex groove...

Embodiment 2

[0071] Except that the composition and preparation method of the wallboard and the top are not consistent with Example 1, other conditions are the same as Example 1.

[0072] The wallboard and the top are poured with the following raw materials in parts by weight:

[0073] Grades with an average particle size of 30-60 μm shall not be lower than 500 parts of 42.5 cement;

[0074] 300 parts of active admixtures with an average particle size of 0.1~10 μm and a SiO2 content of ≥85%;

[0075] 1600 parts of river sand aggregate with a particle size of 0.16~0.63mm

[0076] 16 parts of high-efficiency water reducing agent with water reducing rate greater than 30%;

[0077] 160 parts of water;

[0078] 15 parts of PVA fiber with a length of 8-12 mm;

[0079] 40 parts of basalt fiber with a length of 10~14mm.

[0080] The active admixture includes ultrafine ceramic sludge powder, silica fume and fly ash, and the ratio of the three is 4:4:1.

[0081] The preparation method is as fo...

Embodiment 3

[0087] 400 parts of cement removal, 230 parts of active admixture, 1450 parts of river sand aggregate, 13 parts of superplasticizer, 130 parts of water, 8 parts of PVA fiber, 25 parts of basalt fiber, superfine ceramic silt powder: silica fume: powder Coal ash=2:2:1, other conditions are the same as embodiment 1.

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Abstract

The invention discloses an inorganic high-performance thin-wall sound barrier for transportation, which comprises a plurality of columns and a plurality of wallboards which are arranged between every two adjacent columns and connected in an up-and-down way, wherein the topmost wallboard is provided with a capping; and the wallboard and capping are cast from the following raw materials in parts by weight: 350-500 parts of cement with the average grain size of 30-60 mu m and the grade of not lower than 42.5, 200-300 parts of active admixture with the average grain size of 0.1-10 mu m and the SiO2 content of at least 85%, 1400-1600 parts of river sand aggregate with the particle size of 0.16-0.63mm, 12-16 parts of high efficiency water reducing agent with the water reducing rate of greater than 30%, 110-160 parts of water, 10 parts of PVA (polyvinyl alcohol) fiber with the length of 8-12mm and 30 parts of basalt fiber with the length of 10-14mm. The inorganic high-performance thin-wall sound barrier for transportation has the advantages of light structural weight, small wall thickness (only 25-45mm), and obvious sound insulation and noise reduction effects. The sound reduction index is 30db or above, and exceeds the urban noise reduction standard requirement.

Description

technical field [0001] The invention relates to the field of noise reduction and protection for urban traffic environments, in particular to an inorganic high-performance thin-walled sound barrier for traffic. Background technique [0002] Urban traffic noise barrier is a facility inserted between the sound source and the receiver, so that the sound wave propagation has a significant additional attenuation, thereby reducing the impact of noise in a certain area where the receiver is located. The general noise mainly refers to road car noise and factory noise. mechanical noise etc. The existing traditional metal sound barrier is mainly composed of steel structure columns and sound-absorbing and sound-insulating panels. The columns are the main force-bearing components of the sound barrier. They are fixed to the pre-embedded steel plates on the road anti-collision wall or track side by bolts or welding. Above; the sound-absorbing board is the main sound-absorbing component, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B14/06C04B14/46C04B16/06C04B18/08C04B18/14C04B18/16C04B111/52
CPCC04B28/02C04B2111/52C04B14/06C04B14/068C04B16/0641C04B14/46C04B18/165C04B18/08C04B18/146Y02W30/91
Inventor 刘福财肖敏王贻远李斌张信祯黄贺明
Owner 黄贺明
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