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Road paving material prepared by compounding building rubbish and limestone flour and preparation method of road paving material

A technology for paving materials and construction waste, applied in cement production and other directions, can solve the problems of aging resistance, high cost, lack of

Inactive Publication Date: 2014-10-08
韩先福 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of the composition contains a large amount of resin, the cost is relatively high and it is not resistant to aging. In addition, due to the lack of cement components, at least the strength is seriously insufficient

Method used

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  • Road paving material prepared by compounding building rubbish and limestone flour and preparation method of road paving material
  • Road paving material prepared by compounding building rubbish and limestone flour and preparation method of road paving material
  • Road paving material prepared by compounding building rubbish and limestone flour and preparation method of road paving material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Preparation of 3 tons of road paving material, based on the total weight of the road paving material, comprising about 14% by weight of active fine powder, about 25.95% by weight of limestone powder, about 60% by weight separated from construction waste earth material, and about 0.05% by weight of the activator. Wherein, the active micropowder is crushed and ground by the red brick in the construction waste in the jaw crusher and grinder, and the specific surface area of ​​the obtained micropowder is 2000m 2 / kg, by crushing and grinding the fly ash in the jaw crusher and grinder, the specific surface area of ​​the obtained fine powder is 2100m 2 / kg, the two are mixed with a weight ratio of 1:1; the soil material is the soil separated from construction waste, mainly the soil produced by engineering construction; the limestone powder is from the processing of Pengxuan mineral products Limestone powder from the factory; the activator is the composition of alkali activat...

Embodiment 2

[0087] Preparation of Modified and Reinforced Wood Fiber Materials

[0088] (1) The waste wood in the construction waste is chopped into fragment materials with a maximum diameter of 0.5-2cm;

[0089] (2) Place the chopped segment material in a stirring tank, add 25% by weight of polyvinylpolypyrrolidone aqueous solution, stir evenly with a stirrer, and the mass ratio of the segment material to the surface modifier is 300:1;

[0090] (3) Add polyethylene powder to the segment material after surface modification, fully mix, make it uniform, make the surface of segment material adhere to polyethylene powder, the mass ratio of described segment material and polyethylene is 80:1;

[0091] (4) heat-treat the mixture obtained in step (3) for 45 minutes at 135° C., and cool to room temperature to obtain a modified and reinforced wood fiber material.

Embodiment 3

[0093] Prepare 3 tons of road paving materials according to the same operating procedure as in Example 1, and its difference from Example 1 is only that the road paving materials of Example 1 are added on the basis of the road paving materials of Example 1. The modified and reinforced wood fiber material prepared in Example 2 was 3% by weight of the total weight of the building material. According to the standard highway design specification, a certain amount of the material was taken to make a test piece of Φ×h=10cm×10cm, and its 28d unconfined compressive strength was tested according to the same method as in Example 1. It has been measured that its 28d strength is 2.31MPa, and its unconfined compressive strength has increased by 27%, which fully meets the strength requirements of high-grade road subgrade filling materials, and also meets the unconfined compressive strength requirements of expressways.

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Abstract

The invention discloses a road paving material prepared by compounding building rubbish and limestone flour and a preparation method of the road paving material. Based on the total weight of the road paving material, the road paving material comprises the following components in percentage by weight: 1-15% of active micropowder, 20-40% of limestone flour, 40-60% of a soil material separated from the building rubbish and 0.02-0.08% of an excitant. The road paving material disclosed by the invention satisfies the index requirements of a road and takes good advantages of building rubbish.

Description

technical field [0001] The invention relates to a road paving material prepared by compounding construction waste and limestone powder and a preparation method thereof. Background technique [0002] Construction waste mainly refers to all kinds of waste such as soil, waste residue, mortar, etc. generated during the construction, repair, demolition of various structures and buildings by construction units or individuals, and house decoration. The basic composition of construction waste produced by different types of building structures is the same, and the main components include soil, scattered mortar, waste residue, asphalt concrete fragments, reinforced concrete pile heads left after piling, cement concrete, masonry produced by chiseling, All kinds of waste metal, wood, packaging materials of various building materials, wall insulation boards, waste generated in the decoration process and other wastes. [0003] The main component of limestone powder is calcium carbonate (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B7/24
CPCY02P40/10
Inventor 衣大明韩先福贺伟力吴晟冯进尧
Owner 韩先福
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