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High-durability damping concrete and preparation method thereof

A concrete and durable technology, which is applied in the field of concrete and its preparation, can solve the problems of low damping capacity and poor durability, and achieve the effects of improving utilization rate, improving interface conditions, and improving chloride ion penetration resistance

Inactive Publication Date: 2010-10-13
刘铁军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of low damping capacity and poor durability of existing concrete structural materials, and provide several high-durability vibration-damping concretes and their preparation methods

Method used

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  • High-durability damping concrete and preparation method thereof
  • High-durability damping concrete and preparation method thereof
  • High-durability damping concrete and preparation method thereof

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Experimental program
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specific Embodiment approach 1

[0015] Embodiment 1: In this embodiment, each cubic meter of high-durability vibration-damping concrete consists of 480kg of cement, 28.8kg of rubber powder, 220kg of water, 605kg of medium sand and 1075kg of gravel.

[0016] The high-durability vibration-damping concrete described in this embodiment is prepared by stirring and mixing the components constituting the concrete.

[0017] The cement used in this embodiment is 32.5 ordinary Portland cement, the basic physical and mechanical properties of 32.5 ordinary Portland cement are shown in Table 1, and the chemical composition (%) of 32.5 ordinary Portland cement is shown in Table 2.

[0018] Table 1

[0019]

[0020] Table 2

[0021]

[0022] The sand used in this embodiment is medium sand, and the particle gradation of the medium sand is the II zone gradation. The performance index of the sand is shown in Table 3:

[0023] table 3

[0024]

[0025] The performance index of stone used in the present embodiment i...

specific Embodiment approach 2

[0028] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the rubber powder is Latex powder. Others are the same as in the first embodiment.

[0029] The rubber powder used in this embodiment is produced by Wacker Chemicals Company in Germany Latex powder. It is a spray-dried powder of high molecular polymer emulsion. If these latex powders are dispersed in water, a stable emulsion will be formed again, and its physical properties are the same as the original emulsion.

specific Embodiment approach 3

[0030] Embodiment 3: In this embodiment, each cubic meter of high-durability vibration-damping concrete consists of 480kg of cement, 2.4kg of carbon fiber, 210kg of water, 638kg of medium sand, 1042kg of stones, 4.8kg of water reducing agent and 38.4kg of silicon powder.

[0031] The silicon powder used in this embodiment is produced by Chengdu Donglanxing Company, and its chemical composition and physical properties are shown in Table 5:

[0032] table 5

[0033]

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Abstract

The invention discloses a high-durability damping concrete and a preparation method thereof, and relates to several concretes and a preparation method thereof. The invention solves the problems of low damping capability and poor durability of the conventional concrete structure material per se. The high-durability damping concrete is prepared by stirring and mixing cements, rubber powder, water, medium sand, stones, and adding fibers and silicon powder. In the invention, c the loss factors of the high-durability damping concrete are improved by about 80-200 percent compared with that of pain concrete under the condition of different frequencies. After maintenance for 28 days, the concrete prepared by using the method has chloridion-resistant permeability and carbonizing-resistant capability both superior to that of blank concretes.

Description

technical field [0001] The present invention relates to several types of concrete and methods for their preparation. Background technique [0002] At present, the concrete structure is developing in the direction of high, large, long, light weight and high strength. The damping of the concrete structure itself is significantly reduced, and the dynamic effect under the action of wind and earthquake is more serious. The vibration control of concrete structures developed in the past 30 years, especially the energy dissipation vibration reduction technology, can effectively reduce the vibration of concrete structures caused by wind, earthquake and sea waves. These technologies mainly increase the damping of the structure by setting various mechanical or hydraulic devices in the concrete structure, so as to achieve the purpose of vibration reduction. [0003] Composite materials are widely used in structures due to their high strength and stiffness. The damping in structures is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/38C04B16/06C04B24/22
Inventor 刘铁军梁超锋邹笃建
Owner 刘铁军
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