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Method for producing green ecological cement resistant to seawater corrosion with lime plant waste

An ecological cement and anti-seawater technology is applied in the field of producing green ecological cement resistant to seawater corrosion from lime plant waste, which can solve the problems of inconvenient construction and engineering quality control, lack of uniform standards for preparation technology, and unfavorable production and construction costs. Good density and volume stability, high resistance to chloride ion diffusion, good economic and social benefits

Active Publication Date: 2016-06-01
广西云燕特种水泥建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The problems existing in on-site preparation include: the lack of uniform standards for preparation technology, the preparation process is relatively complicated, which brings inconvenience to construction and project quality control, and is not conducive to saving production and construction costs

Method used

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  • Method for producing green ecological cement resistant to seawater corrosion with lime plant waste
  • Method for producing green ecological cement resistant to seawater corrosion with lime plant waste
  • Method for producing green ecological cement resistant to seawater corrosion with lime plant waste

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Effect test

Embodiment 1

[0038] The green ecological cement that resists seawater corrosion is produced with lime plant waste, and its production method comprises the following steps:

[0039] a. Drying: The waste from the lime plant is sent to the vertical dryer for drying through the belt conveyor. After drying, the waste from the lime plant is sent to the waste warehouse of the lime plant through the elevator for storage, and the water content is less than 2.5%.

[0040] b. Grinding: Grind the dried lime plant waste obtained in step a with a cement mill so that its passing rate through a 100 mesh sieve reaches more than 95%, and 45 parts of the lime plant waste obtained in step a and the prepared sulfur aluminum Add 40 parts of salt cement clinker, 0.04 parts of composite activator and 1 part of early strength agent into the cement mill in parts by weight, spray atomized water to the inside of the cement mill, and control the temperature of the grinding process at 115 ±3°C, the material coming out ...

Embodiment 2

[0044] The green ecological cement that resists seawater corrosion is produced with lime plant waste, and its production method comprises the following steps:

[0045] a. Drying: The waste from the lime plant is sent to the vertical dryer for drying through the belt conveyor. After drying, the waste from the lime plant is sent to the waste warehouse of the lime plant through the elevator for storage, and the water content is less than 2.5%.

[0046] b. Grinding: Grind the dry lime plant waste obtained in step a with a cement mill so that its passing rate through a 100 mesh sieve reaches more than 95%, and 50 parts of the lime plant waste obtained in step a and the prepared sulfur aluminum Add 45 parts of salt cement clinker, 0.05 parts of composite activator and 2 parts of early strength agent into the cement mill in parts by weight, spray atomized water to the inside of the cement mill, and control the temperature of the grinding process at 115 ±3°C, the material coming out o...

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Abstract

The invention discloses a method for producing green ecological cement resistant to seawater corrosion by using wastes from lime factories. The cement comprises the following raw materials in parts by weight: 45-55 parts of wastes from lime factories, 40-50 parts of sulphoaluminate cement clinkers, 0.04-0.07 part of compound activating agent, 1-3 parts of early strength agent, 0.5-0.7 part of water reducing agent, 0.004-0.006 part of air entraining agent and 0.4-0.6 part of retarder. The production method is characterized by breaking, grinding and homogenizing the wastes from lime factories, the sulphoaluminate cement clinkers, the compound activating agent and the early strength agent respectively, then preparing the materials in proportion, mixing the materials, homogenizing the mixture, then adding the water reducing agent, the air entraining agent and the retarder, mixing the materials and homogenizing the mixture, thus preparing the product. The green ecological cement resistant to seawater corrosion has the excellent characteristics of high strength, resistance to seawater corrosion and seawater scouring, and the like besides the properties of ordinary cement, and is especially suitable for underground engineering, ports, wharfs and other engineering suffering corrosion of erosion media.

Description

technical field [0001] The invention relates to a production method of cement, in particular to a low-cost, energy-saving, environment-friendly and seawater-resistant green ecological cement production method. Background technique [0002] The word Cement (cement) is developed from the Latin caementum, which means gravel and flakes. The history of cement can be traced back to the mixture of lime and volcanic ash used by the ancient Romans in construction, which is very similar to modern lime pozzolanic cement. The concrete made of cemented crushed stone not only has high strength after hardening, but also can resist the erosion of fresh water or salt water. For a long time, it has been widely used in construction projects as a kind of important cementitious material. In 1756, British engineer J. Smeaton discovered when studying the characteristics of some lime hardening in water: to obtain hydraulic lime, it must be fired with limestone containing clay; The ideal composit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/22C04B7/32
Inventor 黄芳龙志谋杨毅龙承战
Owner 广西云燕特种水泥建材有限公司
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