Permeable recycled aggregate and ceramsite concrete doped with industrial and agricultural solid waste and preparation

A technology of solid waste and ceramsite concrete, which is applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the research problems of pervious concrete scholars, and achieve the effect of light weight, convenient operation, and environmental improvement

Active Publication Date: 2015-04-01
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] From the perspective of the paper, Wu Haofeng of Central South University’s 2009 master’s thesis "Research on Green Ceramsite and Its Permeable Concrete" used waste porcelain powder, red mud, and fly ash as raw materials to burn ceramsite, and studied the impact of raw materials and sintering systems on ceramics. The influence of aggregate performance, and using ceramsite as the aggregate of pervious concrete, studied the relationship between the porosity, permeability coefficient and mechanical properties of pervious concrete; In "Experimental Research on Performance", according to the understanding of the durability of rubber aggregate concrete, rubber aggregate is added to pervious concrete to prepare rubber aggregate permeable concrete, and the strength, water permeability, frost resistance and performance of rubber aggregate permeable concrete are studied. Wear resistance; however, pervious concrete mixed with industrial and agricultural solid waste, recycled aggregate and ceramsite has not yet been studied by scholars
[0003] Judging from the patents that have been applied for, in the patent "Multimedia Porous Water Quality Purification and Permeable Material" (101172822) published by the Nanjing Soil Research Institute of the Chinese Academy of Sciences in 2008, ordinary concrete, agricultural and forestry waste and other inorganic materials are used as basic raw materials. , to manufacture a multi-media porous water purification and permeable material, wherein the claim of inorganic materials includes the material of ceramsite; Guangxi University published a patent in 2014 "a kind of ceramsite recycled concrete and hollow block masonry and its preparation Method" (104150821A), ceramsite recycled concrete uses ceramsite as coarse aggregate and waste concrete as recycled fine aggregate to manufacture green wall materials; however, recycled aggregate and ceramsite are used as the basic skeleton, and industrial Permeable concrete for agricultural solid waste has not yet applied for a patent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: The dense packing density of recycled aggregate is 1450 kg / m 3 , the dosage is 30%; the dense packing density of ceramsite is 500 kg / m 3 , the dosage is 50%; industrial and agricultural solid waste is selected as glass waste, and its close packing density is 800 kg / m 3 , the dosage is 20%; these three materials constitute 100% coarse aggregate, the particle size is 9.5-19mm, after mixing according to the proportion, the dense packing density of coarse aggregate is measured to be 845 kg / m 3 , close-packed porosity is 40%; design porosity is 20%; water-cement ratio is 0.30; 42.5 cement density is 3100 kg / m 3 ; The amount of superplasticizer is 1% of the cement mass; the amount of reinforcing material is 2.3% of the cement mass. Concrete is prepared according to the preparation process of this patent, and finally a mix ratio of recycled aggregate permeable ceramsite concrete mixed with industrial and agricultural solid waste is obtained. The amount of various ...

Embodiment 2

[0024] Example 2: The dense packing density of recycled aggregate is 1550 kg / m 3 , the dosage is 40%; the dense packing density of ceramsite is 700 kg / m 3 , the dosage is 40%; industrial and agricultural solid waste is selected as branches, and its close packing density is 500 kg / m 3 , the dosage is 20%; these three materials constitute 100% coarse aggregate, the particle size is 19-26.5mm, after mixing well in proportion, the dense packing density of coarse aggregate is measured as 1000 kg / m 3 , close-packed porosity is 40%; design porosity is 25%; water-cement ratio is 0.35; 42.5 cement density is 3100 kg / m 3 ; The amount of superplasticizer is 1% of the cement mass; the amount of reinforcing material is 2.1% of the cement mass. Concrete is prepared according to the preparation process of this patent, and finally a mix ratio of recycled aggregate permeable ceramsite concrete mixed with industrial and agricultural solid waste is obtained. The amount of various materials p...

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Abstract

The invention discloses permeable recycled aggregate and ceramsite concrete doped with industrial and agricultural solid waste and preparation. The permeable recycled aggregate and ceramsite concrete doped with industrial and agricultural solid waste is characterized in that recycled coarse aggregates and ceramsites are taken as coarse aggregates of concrete, an appropriate amount of pretreated industrial and agricultural solid waste such as industrial waste, agricultural waste, household garbage and the like is taken as an admixture, a cementing agent is prepared from cement, water, a superplasticizer and a reinforcement material, and the materials are mixed with a preset stirring process and preparation method, so that ecological concrete with good mechanical property, permeable property and durability is produced. According to the concrete, the waste utilization rate is up to about 80%, the concrete is environment-friendly, locally available materials can be used, the economic benefit is remarkable, ceramist pore is smaller, and sewage can be continuously and stably treated, so that the concrete is commonly used in water environment comprehensive improvement engineering; and besides, the concrete has light weight, high strength and good water permeability and can be also used in permeable pavement engineering such as a sidewalk, a parking lot and the like as well as plant engineering such as ecological riverway slope protection, roof landscape planting and the like.

Description

technical field [0001] The invention relates to a recycled aggregate permeable ceramsite concrete mixed with industrial and agricultural solid waste and its preparation. Specifically, the recycled aggregate, ceramsite and industrial and agricultural solid waste are used to prepare permeable concrete, which is mainly used for comprehensive improvement of water resources Engineering, permeable pavement engineering and ecological slope protection engineering, etc., belong to the technical field of renewable resource permeable concrete. Background technique [0002] From the perspective of the paper, Wu Haofeng of Central South University’s 2009 master’s thesis "Research on Green Ceramsite and Its Permeable Concrete" used waste porcelain powder, red mud, and fly ash as raw materials to burn ceramsite, and studied the impact of raw materials and sintering systems on ceramics. The influence of aggregate performance, and using ceramsite as the aggregate of pervious concrete, studie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/30
CPCY02W30/91
Inventor 杨鼎宜朱金春张帅胡欣欣沈武张佩玲史振宇江虹孙飞进王长江
Owner YANGZHOU UNIV
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