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Road paving material taking building waste as main material and preparation method of road paving material

A technology for paving materials and construction waste, applied in cement production, etc., can solve the problem of low mixing ratio of waste materials, achieve stable capacity increase effect, avoid migration, and ensure the effect of performance stability

Active Publication Date: 2014-10-29
北京元泰达环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This document is mainly aimed at shaped products, and the proportion of waste materials mixed is low

Method used

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  • Road paving material taking building waste as main material and preparation method of road paving material
  • Road paving material taking building waste as main material and preparation method of road paving material
  • Road paving material taking building waste as main material and preparation method of road paving material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Prepare 3 tons of road paving material, based on the total weight of the road paving material, it contains 9.93% by weight of active micropowder made from red bricks, blue bricks, tiles and / or cullet, 90.00% by weight Separating the prepared soil material and 0.07% by weight of the exciter from construction waste, wherein the active micropowder is obtained by crushing and grinding the red brick in the construction waste in a jaw crusher and a grinder, and the obtained micropowder The specific surface area is 2000m 2 / kg, the soil material is the soil separated from construction waste, mainly the soil produced by engineering excavation, the activator is the composition of alkali activator A and salt activator B, and the combination of activator A and B The weight ratio is 5:1; base activator A is 30% by weight Ca(OH) based on the total weight of base activator A 2 , 10 wt% NaOH, 30 wt% Na 2 CO 3 and 30 wt% Na 2 SiO 3 9H 2 Mixture of O; Salt Activator B is 30% by we...

Embodiment 2

[0080] Preparation of Modified and Reinforced Wood Fiber Materials

[0081] (1) The waste wood in the construction waste is chopped into fragment materials with a maximum diameter of 0.5-2cm;

[0082] (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;

[0083] (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;

[0084] (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

[0086] 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 road design specification, the material is paved as a road base, and its 7d compressive strength is tested. According to the same measurement method as in Example 1, the 7d compressive strength recorded is 3.7MPa, which meets the requirement of 3-4Mpa for the 7d compressive strength of the expressway to the base, and the strength is higher than that of the road paving material in Example 1. 5.7%.

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Abstract

The invention discloses a road paving material taking building waste as a main material and a preparation method of the road paving material. Based on total weight of the road paving material, the road paving material comprises the following materials in percent by weight: 5-15% of active micro powder prepared from red bricks, black bricks, tiles and / or crushed glass, 80-90% of mud material separated from building waste and 0.02-0.08% of activator, wherein over 99% of the road paving material is prepared from the building waste. The road paving material disclosed by the invention enables the building waste to be sufficiently utilized while satisfying road index requirements.

Description

technical field [0001] The invention relates to a road paving material with construction waste as the main raw material and a preparation method thereof, in particular to a road paving material with more than 99% by weight of construction waste. 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 wa...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B7/24
CPCY02P40/10
Inventor 韩先福贺伟力王以峰郭海滨吴波玲
Owner 北京元泰达环保科技有限公司
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