CN108218337A - It is a kind of to utilize ordinary mortar of discarded concrete production and preparation method thereof - Google Patents

It is a kind of to utilize ordinary mortar of discarded concrete production and preparation method thereof Download PDF

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Publication number
CN108218337A
CN108218337A CN201611194103.1A CN201611194103A CN108218337A CN 108218337 A CN108218337 A CN 108218337A CN 201611194103 A CN201611194103 A CN 201611194103A CN 108218337 A CN108218337 A CN 108218337A
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CN
China
Prior art keywords
parts
ordinary mortar
discarded concrete
mortar
artificial sand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611194103.1A
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Chinese (zh)
Inventor
麻晔
赵岩
滕丽荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian University of Technology
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Dalian University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dalian University of Technology filed Critical Dalian University of Technology
Priority to CN201611194103.1A priority Critical patent/CN108218337A/en
Publication of CN108218337A publication Critical patent/CN108218337A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C04B28/02Compositions 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
    • C04B28/04Portland 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
    • 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

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

Abstract

Ordinary mortar of discarded concrete production and preparation method thereof is utilized the invention discloses a kind of.The ordinary mortar is made of according to parts by weight following component:40 60 parts of discarded concrete recycled fine aggregate;5 30 parts of cement;2 10 parts of flyash;10 30 parts of artificial sand;15 parts of additive;10 30 parts of water.The ordinary mortar that consistency, water-retaining property, mortar tensile bond strength and the compression strength of the ordinary mortar of the present invention are equivalent to or are produced higher than artificial sand, production requirement using recycled fine aggregate substitution artificial sand production ordinary mortar can be realized using the present invention, had good value for applications.

Description

It is a kind of to utilize ordinary mortar of discarded concrete production and preparation method thereof
Technical field
The present invention relates to building material technical field more particularly to it is a kind of using discarded concrete production ordinary mortar and Preparation method.
Background technology
In municipal solid wastes, building castoff accounts for about 40% or so, and wherein discarded concrete accounts for building castoff The 30%~40% of discharge capacity, and with the quickening of urbanization process in world wide, dismounting, transformation to inhering architecture Engineering it is growing day by day, can all make the yield of discarded concrete more and more.
Regeneration thickness is used as after taking broken, cleaning, screening to the processing of discarded concrete and recycling majority both at home and abroad Aggregate uses (and most of presence all in the form of coarse aggregate), and major part recycled aggregate is used in concrete at present, and by again The ordinary mortar mechanical property of raw fine aggregate production is low, it is impossible to meet the requirement of relevant criterion, specification, engineering, discarded concrete Application of the recycled aggregate in the production of ordinary mortar is relatively fewer.
Invention content
In view of above-mentioned problems of the prior art, the purpose of the present invention is to provide one kind, and there is higher mortar to stretch Ordinary mortar for utilizing discarded concrete production of adhesion strength and compression strength and preparation method thereof.
Technical scheme is as follows:
A kind of ordinary mortar produced using discarded concrete, is made of according to parts by weight following component:
In the above-mentioned technical solutions, the discarded concrete recycled fine aggregate refers to discarded concrete is broken by machinery The regeneration concrete obtained after broken, cleaning, screening, fineness modulus are 2.3~3.
In the above-mentioned technical solutions, the fineness modulus of the artificial sand is 2.5-2.8.
In the above-mentioned technical solutions, the additive is according to mass ratio 2-5 by naphthalene water reducer and organosilicon moisture repellent: The compound additive that 5-10 is mixed to get.
In the above-mentioned technical solutions, the cement is portland cement.
The present invention also provides the preparation method of ordinary mortar described above, specially:According to parts by weight discarded concrete Recycled fine aggregate, cement, flyash and artificial sand are poured into blender successively to be stirred, and then dissolves additive according to parts by weight Yu Shuizhong pours into blender stirring.
Beneficial effects of the present invention:
Ordinary mortar water-retaining property, mortar tensile bond strength and the compression strength being prepared using the method for the present invention are suitable In or higher than artificial sand production ordinary mortar, method using the present invention can realize using recycled fine aggregate replace artificial sand The production requirement of ordinary mortar is produced, solves problem of environmental pollution caused by discarded concrete stacking, while can reduce to ore deposit The consumption in goods and materials source, has many advantages, such as practical, easy to operate, energy saving, has good value for applications.
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.
The material that example below uses:
Discarded concrete recycled fine aggregate:The concrete that collection demolition of buildings is discarded from building site, by Mechanical Crushing, clearly Wash, sieve after obtained regeneration concrete, fineness modulus 2.6.
The fineness modulus of artificial sand is 2.7;Flyash produces II grade of flyash for Shandong Weifang power plant, and cement is silicate cement Mud.
Embodiment 1
A kind of ordinary mortar produced using discarded concrete, is made of according to parts by weight following component:
Wherein additive is according to mass ratio 2:Naphthalene water reducer and organosilicon moisture repellent are uniformly mixed and are prepared by 5.
It is prepared as follows to obtain, according to parts by weight discarded concrete recycled fine aggregate, cement, flyash and artificial Sand pours into blender stir successively, and then additive is dissolved in the water according to parts by weight, pours into blender stirring, must utilize The ordinary mortar of discarded concrete production, the consistency of the mortar is 99mm, and water-retaining property reaches 92%, setting time 5h30min, 14d tensile bond strengths are 0.37MPa, and 28d intensity is 14.5MPa.
Embodiment 2
A kind of ordinary mortar produced using discarded concrete, is made of according to parts by weight following component:
Wherein additive is according to mass ratio 3:Naphthalene water reducer and organosilicon moisture repellent are uniformly mixed and are prepared by 10.
It is prepared as follows to obtain, according to parts by weight discarded concrete recycled fine aggregate, cement, flyash and artificial Sand pours into blender stir successively, and then additive is dissolved in the water according to parts by weight, pours into blender stirring, must utilize The ordinary mortar of discarded concrete production, the consistency of the mortar is 99mm, and water-retaining property reaches 99%, setting time 5h55min, 14d tensile bond strengths are 0.46MPa, and 28d intensity is 15.0MPa.
Embodiment 3
A kind of ordinary mortar produced using discarded concrete, which is characterized in that be made of according to parts by weight following component:
Wherein additive is according to mass ratio 5:Naphthalene water reducer and organosilicon moisture repellent are uniformly mixed and are prepared by 8.
It is prepared as follows to obtain, according to parts by weight discarded concrete recycled fine aggregate, cement, flyash and artificial Sand pours into blender stir successively, and then additive is dissolved in the water according to parts by weight, pours into blender stirring, must utilize The ordinary mortar of discarded concrete production, the consistency of the mortar is 99mm, and water-retaining property reaches 98%, setting time 6h10min, 14d tensile bond strengths are 0.47MPa, and 28d intensity is 13.2MPa.

Claims (6)

1. a kind of ordinary mortar produced using discarded concrete, which is characterized in that be made of according to parts by weight following component:
2. ordinary mortar according to claim 1, which is characterized in that the discarded concrete recycled fine aggregate refers to will be useless The regeneration concrete that concrete obtains after Mechanical Crushing, cleaning, screening is abandoned, fineness modulus is 2.3~3.
3. ordinary mortar according to claim 1, which is characterized in that the fineness modulus of the artificial sand is 2.5-2.8.
4. ordinary mortar according to claim 1, which is characterized in that the additive is by naphthalene water reducer and organosilicon Hydrophober is according to mass ratio 2-5:The compound additive that 5-10 is mixed to get.
5. ordinary mortar according to claim 1, which is characterized in that the cement is portland cement.
6. a kind of preparation method of ordinary mortar as described in claim 1, which is characterized in that according to parts by weight discarded concrete Recycled fine aggregate, cement, flyash and artificial sand are poured into blender successively to be stirred, and then dissolves additive according to parts by weight Yu Shuizhong pours into blender stirring.
CN201611194103.1A 2016-12-21 2016-12-21 It is a kind of to utilize ordinary mortar of discarded concrete production and preparation method thereof Pending CN108218337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611194103.1A CN108218337A (en) 2016-12-21 2016-12-21 It is a kind of to utilize ordinary mortar of discarded concrete production and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611194103.1A CN108218337A (en) 2016-12-21 2016-12-21 It is a kind of to utilize ordinary mortar of discarded concrete production and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108218337A true CN108218337A (en) 2018-06-29

Family

ID=62655867

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611194103.1A Pending CN108218337A (en) 2016-12-21 2016-12-21 It is a kind of to utilize ordinary mortar of discarded concrete production and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108218337A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112010600A (en) * 2020-08-12 2020-12-01 福建省春天生态科技股份有限公司 Preparation method of enhanced ecological mortar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112010600A (en) * 2020-08-12 2020-12-01 福建省春天生态科技股份有限公司 Preparation method of enhanced ecological mortar

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Application publication date: 20180629