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Cement-based grouting material with damping vibration attenuation function

A technology of vibration reduction and grouting materials, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of no damping and vibration reduction, and achieve less damage, lower vibration, and significant damping and vibration reduction The effect of action

Inactive Publication Date: 2009-10-14
CHINA JINGYE ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the equipment will generate a periodic vibration load on the grouting material when it is in operation, and the grouting materials currently on the market have no obvious damping and vibration reduction effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Choose 25 kg of cement, 55 kg of sand, 20 kg of fly ash, 2.5 kg of water reducing agent, 7 kg of expansion agent, and 10 kg of vibration-reducing particles. First put the sand and cement into the mixer for mixing, then put the water reducer, fly ash, expansion agent and vibration damping particles into the mixer, mix well and pack into bags.

Embodiment 2

[0013] Choose 45 kg of cement, 80 kg of sand, 0.25 kg of water reducing agent, 6 kg of expansion agent, and 20 kg of vibration-damping particles. First put the sand and cement into the mixer for mixing, then put the water reducing agent, expansion agent and vibration damping particles into the mixer, mix well and pack into bags. Add 12% water at the construction site according to the weight percentage of the material, and use a forced mixer or manual mixing to form a fluid grouting material that can be used.

Embodiment 3

[0015] Choose 40 kg of cement, 60 kg of sand, 10 kg of fly ash, 0.8 kg of water reducing agent, 8 kg of expansion agent, and 15 kg of vibration-reducing particles. First put the sand and cement into the mixer for mixing, then put the water reducer, fly ash, expansion agent and vibration damping particles into the mixer, mix well and pack into bags. At the construction site, add 14.5% water according to the weight percentage of the material, and stir it with a forced mixer for 2 minutes to form a fluid grouting material, pour it into the equipment base continuously, and after 24 hours, the grouting material hardens into a grouting material with damping and vibration reduction The effective cushion can reduce the vibration generated when the equipment is running.

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Abstract

The invention provides a cement-based grouting material with a damping vibration attenuation function, comprising the following components according to the parts by weight: 25-60 of cement, 40-80 of sand, 0-20 of fly ash, 0.25-2.5 of water reducing agent, 0-10 of expanding agent and 10-50 of vibration attenuation granules. The invention has the advantages that: (1) the cement-based grouting material has the obvious damping vibration attenuation function, therefore, equipment vibration can be reduced after construction; (2) the damage on the grouting material and base concrete by the equipment vibration can be reduced; and (3) noise caused by the equipment vibration can be reduced.

Description

technical field [0001] The invention relates to a special cement-based grouting material, which has damping and vibration-reducing effects compared with common cement-based grouting materials. Background technique [0002] Cement-based grouting materials are mainly used for secondary grouting of equipment foundations, anchoring of anchor bolts, etc., and have been widely used since the 1990s. At present, two industry standards have been promulgated, namely YB / T 9261-98 " Cement-based Grouting Materials Construction Technical Regulations" and JC / T 986-2005 "Cement-based Grouting Materials", the above-mentioned standards only stipulate indicators such as fluidity, compressive strength, vertical expansion rate, etc., and do not involve the damping reduction of grouting materials. vibration performance. However, most of the equipment will generate a periodic vibration load on the grouting material during operation, and the grouting materials currently on the market have no obvi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/06C04B18/08C04B16/08C04B18/22
CPCC04B2111/70C04B28/02Y02W30/91C04B14/06C04B18/22C04B2103/302C04B18/08C04B22/062C04B24/2676C04B22/148C04B24/2611
Inventor 王强邵正明任恩平仲朝明于海洋王建成
Owner CHINA JINGYE ENG TECH CO LTD
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