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Highroad pavement base and roadbed material containing slag fly ash of coal-fired power plant and stabilized by levigated lime

A technology for coal-fired power plants and highway bases, which is applied in the field of inorganic materials and can solve the problems of complex patent production and so on.

Inactive Publication Date: 2012-06-13
上海寰保渣业处置有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It also meets the requirements of the relevant national grassroots, but the production of this patent is complicated and requires the addition of too many materials
[0005] So far, no new alternative materials with low price, high strength and environmental protection have been seen in the industry and the market

Method used

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  • Highroad pavement base and roadbed material containing slag fly ash of coal-fired power plant and stabilized by levigated lime

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: Get 1400g coal-fired power plant waste slag fly ash and add ground lime 1-2%, add water to make its moisture content be 20%

[0017] Test blocks 1, 2, 3, 4, 5, 6 were prepared. The average unconfined compressive strength measured after 7-day standard curing and saturated with water for 24 hours is 1.5Mpa. 95% guarantee rate is 0.9Mpa.

Embodiment 2

[0018] Embodiment 2: Get 1400g coal-fired power plant waste slag fly ash and add ground lime 2-5%, add water to make its moisture content be 30%

[0019] Test blocks 1, 2, 3, 4, 5, 6 were prepared. The average unconfined compressive strength measured after 7-day standard curing and water saturation for 24 hours is 1.9Mpa. 95% guarantee rate is 1.3Mpa.

[0020] According to the industry standard issued by the Ministry of Communications of the People's Republic of China "Technical Specifications for Highway Pavement Base Construction" (JTJ034-2000), the compressive strength standard of fly ash mixture:

[0021]

[0022] It is stipulated that the base layer of highways and first-class highways can reach 1.1 Mpa, and the invention can achieve unconfined compressive strength of 0.9 Mpa by mixing 1-10% of ground lime, which fully meets the standard.

[0023] To sum up, the present invention provides a new type of inorganic material with higher strength and lower price, which ca...

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Abstract

The invention relates to a highroad pavement base and roadbed material, in particular to a highroad pavement base and roadbed material containing slag fly ash of a coal-fired power plant and stabilized by levigated lime, which is prepared, in weight percentage, by mixing 100% of slag fly ash of the coal-fired power plant and 1%-10% of levigated lime with water, and the moisture ratio of the highroad pavement base and roadbed material is 10%-30%. The highroad pavement base and roadbed material as a novel inorganic material is higher in strength and lower in cost, and castaway slag ash of a domestic refuse incineration plant is reasonably applied.

Description

technical field [0001] The invention relates to a road base and road base material, in particular to an inorganic material used as a road base and road base after being mixed with coal-fired power plant slag fly ash and finely ground lime in a certain proportion. Background technique [0002] At present, the traditional fly ash material used in the industry and on the market is an inorganic material mixed with lime and fly ash in a certain proportion. In the past two decades, lime and fly ash have become more and more common as stabilizing materials added to natural fine-grained soil or clay, especially in road construction in road engineering, and in the production and processing of concrete. This kind of traditional fly ash used to have a wide range of material sources, low price, simple construction, good mechanical properties and water stability, and became an important method for soil quality improvement. However, this technology has been used 20 years ago, and it is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12
Inventor 陆衢顾国忠李振华徐斌
Owner 上海寰保渣业处置有限公司
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