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Method for preparing regenerative road material by using waste building material and construction method thereof

A technology for construction waste and construction access roads, which is applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., and can solve problems such as inability to guarantee construction quality and service life of roads

Inactive Publication Date: 2008-09-03
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the physical properties of construction waste and natural building materials are quite different, such as the water absorption rate of construction waste is relatively high, usual

Method used

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  • Method for preparing regenerative road material by using waste building material and construction method thereof
  • Method for preparing regenerative road material by using waste building material and construction method thereof
  • Method for preparing regenerative road material by using waste building material and construction method thereof

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Experimental program
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Effect test

Embodiment Construction

[0029] 1. Sorting construction waste to remove metal, wood and impurities.

[0030] 2. The crushing of construction waste in the project adopts the principle of centralized crushing, and primary crushing or secondary crushing can be adopted according to specific conditions. Sieve by grade to get special coarse aggregate, coarse aggregate, medium coarse aggregate, fine aggregate, fine-grained soil, among the aggregates, waste brick: waste concrete is about 3:1; aggregate: fine-grained soil is about 3:1 It is 6:4, and the water content is less than 5%.

[0031] Particle composition and particle size requirements of construction waste and soil after crushing and screening

[0032]

[0033] Formed test pieces; maximum dry density and optimum moisture content: determined by heavy-duty compaction tests.

[0034] 3. Prepare materials,

[0035] According to design requirements, special coarse aggregate, coarse aggregate, medium coarse aggregate, fine aggregate and fine-grained s...

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Abstract

A regeneration road building material produced by building wastes is used as a cushion material for the main roads and secondary roads and branches and construction roads of municipal roads. The regeneration road building material comprises special coarse aggregate, coarse aggregate, normally coarse aggregate, fine aggregate, fine grained soil, cement and water. The preparation method includes: separating; removing impurities; crashing and screening according to different sizes. A cement stable construction waste regeneration road building material is produced by adding the raw materials into cement and water for evenly mixing. The construction method of the regeneration road building material produced by building wastes includes: feed preparing and evenly mixing the regeneration material with cement by adding water and paving and tracking and measuring elevation; paving according to the elevation; measuring elevation and paving; static pressing twice and tracking and measuring elevation after each static pressing and paving according to the elevation; shaking pressing twice after static pressing and tracking and measuring elevation and paving according to the elevation and then again static pressing one time; rechecking elevation after pressing; measuring compaction thickness and determining or adjusting loose paving coefficient according to design requirements and the controlling the paving time from mixing with water to finishing paving no more than three hours when paving the regeneration material. The invention makes full use of construction waste materials to produce road building materials, which expands the source of building materials and solves the recycling problem of construction wastes and reduces environment pollution, so that the natural construction resources are fully utilized.

Description

technical field [0001] The invention relates to a road building material and a construction method thereof, in particular to a road construction material prepared from construction waste and a construction method thereof. Background technique [0002] Construction waste refers to the waste generated during the construction, repair and demolition of buildings, usually including waste bricks and tiles, waste stones, concrete blocks, sand and lime soil. With the development of my country's modernization and the acceleration of urbanization, the large-scale construction of new cities and the transformation of old cities have led to an increasing amount of construction waste. Construction waste is the main component of urban waste, accounting for about 30-40% of the total urban waste. The vast majority of construction waste is piled up or landfilled without treatment, which not only takes up a lot of land, pollutes the environment, but also causes a lot of waste of resources. S...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/16C04B14/04
CPCC04B2111/0075C04B28/02Y02W30/91C04B18/12C04B18/16C04B18/165C04B20/0076C04B20/0092C04B20/0096C04B20/02C04B40/0067C04B40/0071
Inventor 李如燕孙可伟赵焱李跃炬林志伟王守刚
Owner KUNMING UNIV OF SCI & TECH
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