CN108238746A - A kind of pervious concrete and preparation method thereof - Google Patents

A kind of pervious concrete and preparation method thereof Download PDF

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Publication number
CN108238746A
CN108238746A CN201611217840.9A CN201611217840A CN108238746A CN 108238746 A CN108238746 A CN 108238746A CN 201611217840 A CN201611217840 A CN 201611217840A CN 108238746 A CN108238746 A CN 108238746A
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China
Prior art keywords
aggregate
pervious concrete
cement
grain size
water
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CN201611217840.9A
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Chinese (zh)
Inventor
张子夏
赵岩
姜鹏宾
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Dalian University of Technology
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Dalian University of Technology
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Priority to CN201611217840.9A priority Critical patent/CN108238746A/en
Publication of CN108238746A publication Critical patent/CN108238746A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use 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
    • C04B18/04Waste materials; Refuse
    • C04B18/16Waste materials; Refuse from building or ceramic industry
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0076Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00284Materials permeable to liquids
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use 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)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The present invention relates to a kind of pervious concretes and preparation method thereof, belong to surface structures Material Field.Pervious concrete provided by the invention, the pervious concrete are made of cement, aggregate, water, adulterant, wherein, the aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;The coarse aggregate is discarded concrete rubble, is 1 in mass ratio by A classes and B classes rubble:1~1.3 is formed, wherein, the grain sizes of A class rubbles is 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/m3The grain size of B class rubbles be 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/m3.Pervious concrete formula is reasonable, in the performance basis for defining raw material, obtains the pervious concrete with higher-strength and porosity.

Description

A kind of pervious concrete and preparation method thereof
Technical field
The present invention relates to a kind of pervious concretes and preparation method thereof, belong to surface structures Material Field.
Background technology
Pervious concrete is a kind of porous light concrete formed by aggregate, cement, reinforcing agent and water mixing, it is not Containing fine aggregate, mutually bonded by coarse aggregate surface cladding a thin layer cement mortar and form the equally distributed honeycomb structure in hole, Have the characteristics that ventilative, permeable and light-weight.Pervious concrete can allow rainwater to flow into underground when being layed on ground, effectively supplement Underground water, and the harm of the environmental pollutions such as the oil compounds on ground can be effectively eliminated;Meanwhile be protection underground water, Maintaining ecological balance, the excellent pavement material that urban heat land effect can be alleviated;It is conducive to the benign hair of environment for human survival In exhibition and the work such as urban rainwater management and water prevention and cure of pollution, there is special significance.
Pervious concrete is while intensity requirement is met, it is also necessary to keep certain perforation hole to meet water penetration It is required that therefore also to pass through mix-design and preparation process and addition other than selecting suitable raw material when preparing Agent achievees the purpose that proof strength and porosity.
Invention content
The object of the present invention is to provide a kind of pervious concrete and preparation method thereof, pervious concrete formula is reasonable, It defines in the performance basis of raw material, obtains the pervious concrete with higher-strength and porosity.
A kind of pervious concrete, the pervious concrete are made of cement, aggregate, water, adulterant, wherein,
The cement performance parameter is as follows:90~120min of presetting period, 180~220min of final setting time;7d pressure resistances It spends for 35~45MPa, 7d flexural strengths are 5.5~8MPa;
The aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;
The coarse aggregate is discarded concrete rubble, is 1 in mass ratio by A classes and B classes rubble:1~1.3 is formed, In,
The grain size of A class rubbles be 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/m3
The grain size of B class rubbles be 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/m3
The adulterant is that flyash and slag micropowder are 1 in mass ratio:The mixture of 0.75~1.5 composition,
The ratio of mud of the concrete is 0.25~0.35, and aggregatecement ratio is 4.0~5.0.
Further, the pervious concrete is made of cement, aggregate, water, adulterant, wherein,
The cement performance parameter is as follows:90~100min of presetting period, 180~200min of final setting time;7d pressure resistances It spends for 38.5~41.3MPa, 7d flexural strengths are 6.2~7.8MPa;
The aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;
The coarse aggregate is discarded concrete rubble, is 1 in mass ratio by A classes and B classes rubble:1.1~1.15 are formed, Wherein,
The grain size of A class rubbles be 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/m3
The grain size of B class rubbles be 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/m3
The adulterant is that flyash and slag micropowder are 1 in mass ratio:The mixture of 1.25 compositions,
The ratio of mud of the concrete is 0.28~0.32, and aggregatecement ratio is 4.26~4.58.
Further, the admixture dosage is the 10~12% of cement.
Further, the fine aggregate dosage is the 32~44% of cement.
The preparation method of above-mentioned pervious concrete is to stir cement, coarse aggregate, 50% water and adulterant in blender Fine aggregate and 20% water are added in after mixing 30s, is stirred for 25s;Excess water is eventually adding, stirs 60s, both.
Beneficial effects of the present invention are:
Pervious concrete provided by the invention, the pervious concrete are made of cement, aggregate, water, adulterant, wherein, The aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;The coarse aggregate is Discarded concrete rubble is 1 in mass ratio by A classes and B classes rubble:1~1.3 is formed, wherein, the grain size of A class rubbles is 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/m3The grain size of B class rubbles is 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/m3.The pervious concrete formula Rationally, in the performance basis for defining raw material, the pervious concrete with higher-strength and porosity is obtained.
Specific embodiment
Following non-limiting examples can make those of ordinary skill in the art be more fully understood the present invention, but not with Any mode limits the present invention.
Test method described in following embodiments is conventional method unless otherwise specified;The reagent and material, such as Without specified otherwise, commercially obtain.
Embodiment 1
A kind of pervious concrete, the pervious concrete are made of cement, aggregate, water, adulterant, wherein,
The cement performance parameter is as follows:Presetting period 90min, final setting time 180min;7d compression strength is 38.5MPa, 7d flexural strength are 6.2MPa;
The aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;
The coarse aggregate is discarded concrete rubble, is 1 in mass ratio by A classes and B classes rubble:1.1 are formed, wherein,
The grain size of A class rubbles be 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/m3
The grain size of B class rubbles be 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/m3
The adulterant is that flyash and slag micropowder are 1 in mass ratio:The mixture of 1.25 compositions,
The ratio of mud of the concrete is 0.28, aggregatecement ratio 4.26.The admixture dosage is the 10% of cement.It is described Fine aggregate dosage is the 32% of cement.
The preparation method of above-mentioned pervious concrete is to stir cement, coarse aggregate, 50% water and adulterant in blender Fine aggregate and 20% water are added in after mixing 30s, is stirred for 25s;Excess water is eventually adding, stirs 60s, both.
The coefficient of permeability of gained pervious concrete is 1.29mm/s, and 7d compression strength is 29.8MPa, and 7d flexural strengths are 4.9MPa。
Embodiment 2
A kind of pervious concrete, the pervious concrete are made of cement, aggregate, water, adulterant, wherein,
The cement performance parameter is as follows:Presetting period 100min, final setting time 200min;7d compression strength is 41.3MPa, 7d flexural strength are 7.8MPa;
The aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;
The coarse aggregate is discarded concrete rubble, is 1 in mass ratio by A classes and B classes rubble:1.15 are formed, wherein,
The grain size of A class rubbles be 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/m3
The grain size of B class rubbles be 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/m3
The adulterant is that flyash and slag micropowder are 1 in mass ratio:The mixture of 1.25 compositions,
The ratio of mud of the concrete is 0.3, aggregatecement ratio 4.44.The admixture dosage is the 10% of cement.It is described Fine aggregate dosage is the 32% of cement.
The preparation method of above-mentioned pervious concrete is to stir cement, coarse aggregate, 50% water and adulterant in blender Fine aggregate and 20% water are added in after mixing 30s, is stirred for 25s;Excess water is eventually adding, stirs 60s, both.
The coefficient of permeability of gained pervious concrete is 1.22mm/s, and 7d compression strength is 30.2MPa, and 7d flexural strengths are 5.23MPa。
Embodiment 3
A kind of pervious concrete, the pervious concrete are made of cement, aggregate, water, adulterant, wherein,
The cement performance parameter is as follows:Presetting period 90min, final setting time 180min;7d compression strength is 35MPa, 7d flexural strengths are 5.5MPa;
The aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;
The coarse aggregate is discarded concrete rubble, is 1 in mass ratio by A classes and B classes rubble:1.18 are formed, wherein,
The grain size of A class rubbles be 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/m3
The grain size of B class rubbles be 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/m3
The adulterant is that flyash and slag micropowder are 1 in mass ratio:The mixture of 1 composition,
The ratio of mud of the concrete is 0.275, aggregatecement ratio 4.38.The admixture dosage is the 10% of cement.Institute State 44% that fine aggregate dosage is cement.
The preparation method of above-mentioned pervious concrete is to stir cement, coarse aggregate, 50% water and adulterant in blender Fine aggregate and 20% water are added in after mixing 30s, is stirred for 25s;Excess water is eventually adding, stirs 60s, both.
The coefficient of permeability of gained pervious concrete is 1.09mm/s, and 7d compression strength is 23MPa, and 7d flexural strengths are 4.3MPa。
Embodiment 4
A kind of pervious concrete, the pervious concrete are made of cement, aggregate, water, adulterant, wherein,
The cement performance parameter is as follows:Presetting period 90min, final setting time 180min;7d compression strength is 38.5MPa, 7d flexural strength are 6.2MPa;
The aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;
The coarse aggregate is discarded concrete rubble, is 1 in mass ratio by A classes and B classes rubble:1.1 are formed, wherein,
The grain size of A class rubbles be 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/m3
The grain size of B class rubbles be 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/m3
The adulterant is that flyash and slag micropowder are 1 in mass ratio:The mixture of 1.2 compositions, the concrete The ratio of mud is 0.32, aggregatecement ratio 4.26.The admixture dosage is the 12% of cement.The fine aggregate dosage is cement 40.5%.
The coefficient of permeability of gained pervious concrete is 1.2mm/s, and 7d compression strength is 25.3MPa, and 7d flexural strengths are 4.52MPa。

Claims (6)

1. a kind of pervious concrete, it is characterised in that:The pervious concrete is made of cement, aggregate, water, adulterant, wherein,
The cement performance parameter is as follows:90~120min of presetting period, 180~220min of final setting time;7d compression strength is 35~45MPa, 7d flexural strength are 5.5~8MPa;
The aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;
The coarse aggregate is discarded concrete rubble, is 1 in mass ratio by A classes and B classes rubble:1~1.3 is formed, wherein,
The grain size of A class rubbles be 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/ m3
The grain size of B class rubbles be 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/ m3
The adulterant is that flyash and slag micropowder are 1 in mass ratio:The mixture of 0.75~1.5 composition,
The ratio of mud of the concrete is 0.25~0.35, and aggregatecement ratio is 4.0~5.0.
2. pervious concrete according to claim 1, it is characterised in that:The pervious concrete by cement, aggregate, water, Adulterant forms, wherein,
The cement performance parameter is as follows:90~100min of presetting period, 180~200min of final setting time;7d compression strength is 38.5~41.3MPa, 7d flexural strength are 6.2~7.8MPa;
The aggregate is made of fine aggregate and coarse aggregate, wherein, the fine aggregate is the stone that grain size is 2~5mm;
The coarse aggregate is discarded concrete rubble, is 1 in mass ratio by A classes and B classes rubble:1.1~1.15 are formed, In,
The grain size of A class rubbles be 2.85~8.85mm, water absorption rate 2.9%, bulk density 1387kg/m3, apparent density 2990kg/ m3
The grain size of B class rubbles be 8.85~12.5mm, water absorption rate 2.65%, bulk density 1411kg/m3, apparent density 2931kg/ m3
The adulterant is that flyash and slag micropowder are 1 in mass ratio:The mixture of 1.25 compositions,
The ratio of mud of the concrete is 0.28~0.32, and aggregatecement ratio is 4.26~4.58.
3. pervious concrete according to claim 1, it is characterised in that:The admixture dosage for cement 10~ 12%.
4. pervious concrete according to claim 1, it is characterised in that:The fine aggregate dosage for cement 32~ 44%.
5. pervious concrete according to claim 2, it is characterised in that:The ratio of mud of the concrete is 0.31, bone ash Than being 4.35.
6. the preparation method of pervious concrete described in claim 1, it is characterised in that:By cement, coarse aggregate, 50% water and mix Fine aggregate and 20% water are added in after stirring 30s in blender with agent, is stirred for 25s;Excess water is eventually adding, stirs 60s, Both.
CN201611217840.9A 2016-12-26 2016-12-26 A kind of pervious concrete and preparation method thereof Pending CN108238746A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108546052A (en) * 2018-07-13 2018-09-18 南昌辉蝶混凝土有限公司 A kind of Sand-free permeable concrete
CN109160790A (en) * 2018-10-22 2019-01-08 湖北工业大学 pervious concrete and preparation method thereof
CN110128068A (en) * 2019-06-05 2019-08-16 滁州市炬基节能新型建材有限公司 Useless pervious concretes of a kind of cavernous body pair and preparation method thereof
CN110414178A (en) * 2019-08-07 2019-11-05 东北大学 A kind of aggregate interlocking concrete mixing proportion design method based on gap
CN110467400A (en) * 2019-09-12 2019-11-19 深圳港创建材股份有限公司 One kind mixing the freeze proof pervious concrete of rubber
CN112250358A (en) * 2020-10-19 2021-01-22 武汉娲石商砼有限公司 Pervious concrete and preparation method thereof
CN112408923A (en) * 2020-11-21 2021-02-26 湖北云海混凝土有限公司 Permeable compression-resistant concrete and preparation method thereof
CN113912337A (en) * 2021-11-17 2022-01-11 中交二公局第三工程有限公司 Non-cracking pervious concrete and preparation method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108546052A (en) * 2018-07-13 2018-09-18 南昌辉蝶混凝土有限公司 A kind of Sand-free permeable concrete
CN109160790A (en) * 2018-10-22 2019-01-08 湖北工业大学 pervious concrete and preparation method thereof
CN109160790B (en) * 2018-10-22 2020-12-18 湖北工业大学 Pervious concrete and preparation method thereof
CN110128068A (en) * 2019-06-05 2019-08-16 滁州市炬基节能新型建材有限公司 Useless pervious concretes of a kind of cavernous body pair and preparation method thereof
CN110414178A (en) * 2019-08-07 2019-11-05 东北大学 A kind of aggregate interlocking concrete mixing proportion design method based on gap
CN110414178B (en) * 2019-08-07 2022-12-16 东北大学 Aggregate interlocking concrete mix proportion design method based on gaps
CN110467400A (en) * 2019-09-12 2019-11-19 深圳港创建材股份有限公司 One kind mixing the freeze proof pervious concrete of rubber
CN112250358A (en) * 2020-10-19 2021-01-22 武汉娲石商砼有限公司 Pervious concrete and preparation method thereof
CN112408923A (en) * 2020-11-21 2021-02-26 湖北云海混凝土有限公司 Permeable compression-resistant concrete and preparation method thereof
CN113912337A (en) * 2021-11-17 2022-01-11 中交二公局第三工程有限公司 Non-cracking pervious concrete and preparation method thereof

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Application publication date: 20180703