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Method for applying road waste inorganic stable material to concrete through regeneration

An inorganic stable, concrete technology, applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., to achieve the effect of high utilization rate, simple recycling method, and enhanced impermeability

Active Publication Date: 2012-01-18
济南市城建材料开发服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of recycling inorganic stable materials in the pavement base, the present invention provides a method for reusing road waste inorganic stable materials in concrete

Method used

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  • Method for applying road waste inorganic stable material to concrete through regeneration

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] C30 concrete was successfully prepared by using ungraded recycled aggregate crushed stones after crushing cement-stabilized soil base and fly ash layer in Jinan City. The matching is shown in Table 1. Both the core-shell latex and the nano-core-shell rubber particles are externally blended, and the addition amount is based on 0.5% and 1.5% of the mass percentage of the cement added. The core-shell latex has a glass transition temperature of 20°C and a solid content of 51.8%. Acrylic core-shell latex with a pH of 9.0 and a degree of polymerization of 1700; the particle size of nano-core-shell rubber particles is 300-800nm, of which 400-600nm particles account for 60% of the total volume. The specific formula is shown in Table 1, and the prepared concrete is recorded as sample A.

[0036] Table 1 Mixing ratio of recycled aggregate C30 concrete

[0037] Material cement water river sand gravel core shell latex Nano Core Shell Rubber Particles Do...

Embodiment 2

[0045] The cement-stabilized macadam base and the fly ash layer of a road reconstruction project in Jinan City were used to grade the recycled aggregates into continuously graded regenerated gravel greater than 25mm, 5mm-25mm, and less than 5mm. The mix ratio is shown in Table 3. Both the core-shell latex and the nano-core-shell rubber particles are externally blended, and the addition amount is based on 0.5% and 1.5% of the mass percentage of the cement added. The core-shell latex has a glass transition temperature of 20°C and a solid content of 48.4%. Acrylic core-shell latex with a pH of 9.5 and a degree of polymerization of 2000; the particle size of nano core-shell rubber particles is 300-800nm, of which 400-600nm particles account for 60% of the total volume. . The specific formula is shown in Table 3, and the prepared concrete is recorded as sample C.

[0046] Table 3 Mixing ratio of recycled aggregate C25 concrete

[0047]

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Abstract

The invention relates to the technical field of recycling of roadbase material solid wastes and provides a method for applying a road waste inorganic stable material to concrete through regeneration. The method comprises the following steps of: crushing a cement stabilized broken stone road surface layer and a lime-flyash layer which are recycled after the road surface is broken by using a crushing machine; performing classified screening on a classifying screen to obtain graded broken stones; and mixing the graded broken stones, cement, water, core shell latex and nano core shell rubber particles uniformly in a certain weight ratio to obtain concrete with different models. By the method, the conventional inorganic stabilized materials can be utilized; the utilization rate is over 90 percent; and wastes are changed into treasures. Sources are wide, the method is simple, high in utilization rate and low-carbon and environment-friendly, resources are saved, and environment is protected.The core shell latex and the nano core shell rubber particles are added, so the construction time of the concrete can be prolonged, and the strength and the impermeability can be improved. No specialrequirement on equipment is provided and operability is high.

Description

[0001] technical field [0002] The invention relates to the technical field of solid waste regeneration and utilization of road base materials, in particular to a method for regenerating waste road inorganic stabilizing materials into concrete. Background technique [0003] In recent years, my country has continued to increase investment in infrastructure construction, and road construction has achieved unprecedented development, which has fundamentally changed the "comprehensively tense" traffic situation in recent years, and has achieved a series of extraordinary achievements. At the same time, the roads built in the early stage were also damaged in different forms, and many projects were in urgent need of reconstruction, refurbishment and reconstruction. In this way, a large amount of solid waste is produced, wherein inorganic stable granular materials account for a large proportion. The recycling of inorganic stable materials can save resources and protect the envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/16
CPCY02W30/91
Inventor 马士玉董文洁王学刚王雨来
Owner 济南市城建材料开发服务中心
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