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Application of fluidized bed gangue slag of fluidized bed furnace to instead conventional engineering fine aggregate to compose architeetural grout

A technology of coal gangue and fluidized bed, which is applied in the field of building materials, can solve problems such as fluidized bed coal gangue boiling slag pollution, achieve the goal of reducing the difficulty of trial matching and quality management, improving seismic performance, and reducing the difficulty of project quality management Effect

Inactive Publication Date: 2007-04-25
杨松 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a kind of technology that utilizes fluidized bed coal gangue boiling slag (ash) to replace traditional engineering fine aggregate, including natural sand and artificial sand, and prepares building mortar in construction engineering. This technology solves the long-standing, Fluidized bed coal gangue boiling slag (ash) brings pollution problems to the environment, and the quality is stable and the cost is low. Under the condition of meeting the requirements of engineering specifications, it breaks the forbidden zone of people's traditional concept and opens up a new path for the comprehensive utilization of industrial waste slag. a new road

Method used

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Effect test

Embodiment 1

[0020] The fluidized bed coal gangue boiling slag (ash) of the present invention replaces traditional engineering fine aggregates to prepare building mortar at a ratio of 100%. Its bulk density is 1200 kg / m3, and its average particle size ranges from 0.045-8 mm.

[0021] The weight ratio of the fluidized bed coal gangue boiling slag (ash) to cement and lime paste in the present invention is 6:1:0.8.

[0022] The sinking degree (consistency) of lime plaster of the present invention is 10 centimetres.

[0023] The cement described in the present invention is ordinary portland cement, and the label is 325.

[0024] After the fluidized bed coal gangue boiling slag (ash) of the present invention is mixed with cement and lime paste, add water and forcefully stir to make mortar, including masonry mortar, plastering mortar, waterproof mortar, pointing mortar, and veneer mortar .

Embodiment 2

[0026] The fluidized bed coal gangue boiling slag (ash) of the present invention can be selected from the bottom slag ash of the 30,000 KW boiling furnace of the coal gangue power plant of Panmei (Group) Company. Its physical properties are: the appearance is gray and white particles, the bulk density is 990-1050 kg / m3, and its chemical composition mainly includes silicon dioxide, aluminum oxide, etc.

[0027] The fluidized bed coal gangue boiling slag (ash) belongs to (II) zone sand, with better gradation, higher water absorption than river sand, and equivalent porosity to middle sand in river sand.

[0028] The chemical composition of lime paste is calcium hydroxide.

Embodiment 3

[0030] After mixing 2360 kg of fluidized bed coal gangue boiling slag (ash) with 350 kg of cement and 235 kg of lime paste, they are mixed with water and forced to mix evenly to make a masonry mortar with a strength grade of M5.0.

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Abstract

An application of the gangue slage from fluidized-bed furnace in preparing building mortar without traditional fine aggregate (natural sand and artificial sand) features that said slage, cement and lime are proportionally mixed.

Description

Technical field [0001] The invention relates to building materials, in particular to an application of using fluidized bed coal gangue boiling slag (ash) to replace traditional engineering fine aggregates, including natural sand and artificial sand, to prepare building mortar aggregates in construction engineering. Background technique [0002] Slag is the combustion product of industrial boilers (such as coal power industry), and fluidized slag is the combustion product of fluidized fluidized furnace. Fluidized bed furnace, also known as bubbling bed, belongs to the first generation of fluidized bed combustion furnace. Boiling combustion is a kind of combustion technology between firebed combustion of solid combustion and pulverized coal combustion. The air flow "fluidizes" and rolls up and down in a certain height space above the furnace fence, which is similar to liquid boiling. The combustion and classification particles are completely burned in such a violent and disor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/10C04B28/02B09B3/00
CPCY02W30/91
Inventor 杨松沈康世
Owner 杨松