CN101407390B - Porous cement concrete using regenerative concrete aggregate - Google Patents

Porous cement concrete using regenerative concrete aggregate Download PDF

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Publication number
CN101407390B
CN101407390B CN2008101221275A CN200810122127A CN101407390B CN 101407390 B CN101407390 B CN 101407390B CN 2008101221275 A CN2008101221275 A CN 2008101221275A CN 200810122127 A CN200810122127 A CN 200810122127A CN 101407390 B CN101407390 B CN 101407390B
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China
Prior art keywords
concrete
parts
cement
aggregate
reclaimed
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Expired - Fee Related
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CN2008101221275A
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Chinese (zh)
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CN101407390A (en
Inventor
孙家瑛
孙倩
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Ningbo Institute of Technology of ZJU
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Ningbo Institute of Technology of ZJU
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Priority to CN2008101221275A priority Critical patent/CN101407390B/en
Publication of CN101407390A publication Critical patent/CN101407390A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/16—Waste materials; Refuse from building or ceramic industry
    • C04B18/167—Recycled materials, i.e. waste materials reused in the production of the same materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00017—Aspects relating to the protection of the environment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00284—Materials permeable to liquids
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Road Paving Structures (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention relates to water permeable cement concrete using recycled concrete as the aggregate, which has the raw material compositions with the weight parts of 250-400 parts of cement, 1500-2000 parts of recycled concrete aggregate, 25-40 parts of inorganic plastering agent and 2.5-5 parts of synthetic fiber, wherein, the recycled concrete aggregate has 5-12mm of unitary size fraction and 25 percent or smaller of crushing value. The ecological water permeable concrete has the advantages of increasing the service means of the high added value of waste concrete, reducing the mining quantity of natural aggregates, lowering the cost for confecting water permeable materials, improving the traffic safety factors of the road, improving the water circulation function of the environment and having the performance indexes meeting the requirements of the set mechanical performance and other technical indexes.

Description

Utilize regeneration concrete to make the cement concrete with water permeability that gathers materials
Technical field
The present invention relates to a kind of regeneration concrete that utilizes and make the cement concrete with water permeability that gathers materials.
Background technology
Along with the progress of engineering level and the requirement of people's quality of life raising, Road construction presents the characteristics such as ecology, permeableization, this has improved ecotope to a certain extent, the pavement temperature regulating power is poor under the high temperature, noise is large to alleviating, and drainability is poor and the natural resources overexploitation is had suitable effect.
Annual because of the growth of Urban traffic amount and the increase of the road occupation time limit, road is many problems such as crack, breakage can to occur, if can carry out regeneration to these discarded concretes, basis at performance not is used for road pavement, not only save cost, reduce building waste and clear and processing costs, also can alleviate the refuse pollution in city.But discarded concrete owing to reasons such as mix in its source, Classification Management is lack of standardization, quality control is not strict, can only be used for the low value-added utilizations such as pit backfill.
Summary of the invention
The object of the invention is to take full advantage of discarded concrete, a kind of cement concrete with water permeability that substitutes natural aggregate with reclaimed concrete aggregate is provided, this ecological property pervious concrete has not only increased the use approach of the high added value of discarded concrete, reduced natural aggregate exploitation quantity, reduced the cost of preparation seepy material, simultaneously also improved the road traffic safety coefficient, improved the ambient water circulatory function, and performance index can satisfy the technical requirements such as mechanical property of setting.
Technical scheme of the present invention provides a kind of regeneration concrete that utilizes and makes the cement concrete with water permeability that gathers materials, its feed composition proportioning is counted by weight and is comprised: 250～400 parts of cement, 1500～2000 parts of reclaimed concrete aggregates, 25～40 parts of inorganic jointing compound, 2.5～5 parts of synthon; Wherein, described reclaimed concrete aggregate is 5～12mm single-grade, crush values≤25%.
The reasons such as discarded concrete is assorted owing to its source, Classification Management is lack of standardization, quality control is not strict can only be used for the low value-added utilizations such as pit backfill.Reclaimed concrete aggregate by output after the art breading carries out strict Classification Management, filter out the reclaimed concrete aggregate of some strength and certain specification, giving full play to it has suitable porosity and prepares cement concrete with water permeability, make the seepy material of reclaimed concrete aggregate preparation can guarantee quality product, can utilize waste resource again, reduce mining, improve the road rain water storage and stay function, water cycle to improve that the aspects such as function and safety factor of travel embody fully and the harmonious development of resource and environment.Wherein used reclaimed concrete aggregate average particle size range requires at 5～12mm, utilizes single-grade, wherein should be not more than 25% in crush values.
As further preferred, the regeneration concrete that utilizes of the present invention is made the cement concrete with water permeability that gathers materials, and its feed composition proportioning is counted by weight and comprised: 280～380 parts of cement, 1550～1900 parts of reclaimed concrete aggregates, 30～38 parts of inorganic jointing compound, 3～4.5 parts of synthon.
As most preferably, the regeneration concrete that utilizes of the present invention is made the permeable concrete that gathers materials, and its feed composition proportioning is counted by weight and comprised: 350 parts of cement, 1550 parts of reclaimed concrete aggregates, 35 parts of inorganic jointing compound, 4.2 parts of synthon.
The regeneration concrete that utilizes of the present invention is made the cement concrete with water permeability that gathers materials, wherein used cement can adopt silicate cement, label is no less than 52.5, be that label is 52.5,52.5R, 62.5 or 62.5R in one or more silicate cement, its quality and technical index must meet national cement standard.Reclaimed concrete aggregate of the present invention prepares cement concrete with water permeability, and wherein used inorganic jointing compound can be one or more in silicon ash, zeolite or the metakaolin.Described synthon are one or more in polypropylene fibre, polyacrylonitrile fibre or the trevira.
The regeneration concrete that utilizes of the present invention is made the cement concrete with water permeability that gathers materials, and adopts normal concrete to mix technique processed.The consumption of water is 0.28～0.35 times of cement consumption.According to carrying out the cement concrete with water permeability mix-design according to the different component materials that adopt and the water ratio of reclaimed concrete aggregate according to lowslump concrete and requirement of strength.Equally with normal concrete lay, testing method carries out with reference to the normal concrete standard, do not giving unnecessary details at this.
The regeneration concrete that utilizes of the present invention is made the cement concrete with water permeability that gathers materials, it utilizes reclaimed concrete aggregate to substitute natural aggregate, reclaimed concrete aggregate by output after the art breading carries out strict Classification Management, filter out the reclaimed concrete aggregate of some strength and certain specification, giving full play to it has suitable porosity and prepares cement concrete with water permeability, make the seepy material of reclaimed concrete aggregate preparation can guarantee quality product, not only increased the use approach of the high added value of discarded concrete, reduced natural aggregate exploitation quantity, reduced the cost of preparation seepy material, simultaneously also improve the road traffic safety coefficient, improved the ambient water circulatory function.
Embodiment
The present invention will be further described below in conjunction with embodiment, but be not limited only to this.
Embodiment 1
Adopt PI52.5 silicate cement 350kg/m3, reclaimed concrete aggregate 1550kg/m3, water consumption 105kg/m3, synthon 4.2kg/m3, inorganic adhesive 35kg/m3.Wherein the reclaimed concrete aggregate particle diameter is that single grating, the crush values of 5～8mm are 22%.At first reclaimed concrete aggregate and synthon are stirred 45s, then add cement, inorganic jointing compound and water and stir together and get final product.
The technical indicator that cement concrete with water permeability reaches is: permeability rate 12.5mm/s, 28 days ultimate compression strength 25Mpa, folding strength 3.5Mpa.
Embodiment 2
Adopt PI52.5R silicate cement 250kg/m3, reclaimed concrete aggregate 1650kg/m3, inorganic jointing compound 25kg/m3, water consumption 75kg/m3, polyacrylonitrile fibre 3kg/m3, wherein the single grating of reclaimed concrete aggregate particle diameter 5～8mm, crush values are 22%.At first reclaimed concrete aggregate and synthon are stirred 45s, then add cement, inorganic jointing compound and water and stir together and get final product.
The technical indicator that cement concrete with water permeability reaches is: 13.5mm/s, 28 days ultimate compression strength are 20MPa, anti-folding degree 3.1MPa.
Experimental example 3
Adopt PI52.5 cement 400kg/m3, reclaimed concrete aggregate 1450kg/m3, inorganic jointing compound zeolite 40kg/m3, water consumption 120kg/m3, polypropylene fibre 4.8kg/m3, wherein reclaimed concrete aggregate particle diameter 5～8mm single-grade, crush values 22%.At first reclaimed concrete aggregate and synthon are stirred 45s, then add cement, inorganic jointing compound and water and stir together and get final product.
The technical indicator that cement concrete with water permeability reaches is: permeability rate 9.5mm/s, 28 days ultimate compression strength 28MPa, folding strength 3.7MPa.
Above-described embodiment is used for explaining the present invention, rather than limits the invention, and in spirit of the present invention and claim protection domain, any modification and change to the present invention makes all fall into protection scope of the present invention.

Claims (3)

1. one kind is utilized regeneration concrete to make the cement concrete with water permeability that gathers materials, it is characterized in that its feed composition proportioning is counted by weight and comprised: 250～400 parts of cement, 1500～2000 parts of reclaimed concrete aggregates, 25～40 parts of inorganic jointing compound, 2.5～5 parts of synthon; Wherein, described reclaimed concrete aggregate is 5～12mm single-grade, crush values≤25%;
Described cement is that label is 52.5,52.5R, 62.5 or 62.5R in one or more silicate cement;
Described inorganic jointing compound is one or more in silicon ash, zeolite or the metakaolin;
Described synthon are one or more in polypropylene fibre, polyacrylonitrile fibre or the trevira.
2. the regeneration concrete that utilizes according to claim 1 is made the cement concrete with water permeability that gathers materials, it is characterized in that, its feed composition proportioning is counted by weight and is comprised: 280～380 parts of cement, 1550～1900 parts of reclaimed concrete aggregates, 30～38 parts of inorganic jointing compound, 3～4.5 parts of synthon.
3. the regeneration concrete that utilizes according to claim 2 is made the cement concrete with water permeability that gathers materials, it is characterized in that its feed composition proportioning is counted by weight and comprised: 350 parts of cement, 1550 parts of reclaimed concrete aggregates, 35 parts of inorganic jointing compound, 4.2 parts of synthon.
CN2008101221275A 2008-10-28 2008-10-28 Porous cement concrete using regenerative concrete aggregate Expired - Fee Related CN101407390B (en)

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Application Number Priority Date Filing Date Title
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NL2028099B1 (en) * 2021-04-29 2022-11-10 Univ Jiangnan Green High-performance Fiber Reinforced Alkali-activated Composite Material and Preparation Method Thereof

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CN102503197A (en) * 2011-10-19 2012-06-20 武汉理工大学 Cement concrete recycling method
CN103204648A (en) * 2012-01-12 2013-07-17 北京春觉晓科技有限公司 High-strength permeable fiber concrete and preparation method thereof
CN103214893B (en) * 2013-04-07 2015-04-08 浙江大学宁波理工学院 Phase-change thermal insulation putty
CN103214226A (en) * 2013-04-07 2013-07-24 浙江大学宁波理工学院 Recycled concrete commercial mortar
CN103452093A (en) * 2013-08-30 2013-12-18 山东大学 Compound foundation formed by serial connection of water-permeable concrete pile and gravel pile and foundation treatment method
CN103771782A (en) * 2014-01-07 2014-05-07 徐州工程学院 Porous concrete prepared from waste concrete aggregate and preparation method thereof
US9382154B2 (en) * 2014-01-17 2016-07-05 Stewart Kriegstein Hygroscopic cementitious materials
CN103979851B (en) * 2014-03-31 2016-06-15 安徽鑫润新型材料有限公司 A kind of Modification of kaolin concrete and preparation method thereof
CN103964782B (en) * 2014-04-30 2016-01-27 江苏建筑职业技术学院 For community road without sand regenerated aggregate pervious concrete and collocation method
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NL2028099B1 (en) * 2021-04-29 2022-11-10 Univ Jiangnan Green High-performance Fiber Reinforced Alkali-activated Composite Material and Preparation Method Thereof

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