CN106699081A - Cob brick structure repair materials prepared by using lime, bentonite and metakaolin and use method thereof - Google Patents

Cob brick structure repair materials prepared by using lime, bentonite and metakaolin and use method thereof Download PDF

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Publication number
CN106699081A
CN106699081A CN201611019414.4A CN201611019414A CN106699081A CN 106699081 A CN106699081 A CN 106699081A CN 201611019414 A CN201611019414 A CN 201611019414A CN 106699081 A CN106699081 A CN 106699081A
Authority
CN
China
Prior art keywords
bentonite
metakaolin
lime
repair
cob brick
Prior art date
Application number
CN201611019414.4A
Other languages
Chinese (zh)
Inventor
孙振平
冀言亮
唐晓博
张世杰
Original Assignee
同济大学
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 同济大学 filed Critical 同济大学
Priority to CN201611019414.4A priority Critical patent/CN106699081A/en
Publication of CN106699081A publication Critical patent/CN106699081A/en

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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
    • C04B28/10Lime cements or magnesium oxide 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
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • C04B14/10Clay
    • C04B14/104Bentonite, e.g. montmorillonite
    • 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
    • C04B18/02Agglomerated materials, e.g. artificial aggregates
    • C04B18/023Fired or melted materials
    • 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
    • C04B18/14Waste materials; Refuse from metallurgical processes
    • C04B18/141Slags
    • 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

Abstract

The present invention relates to the technical field of construction and building materials and more particularly relates to cob brick structure repair materials prepared by using lime, bentonite and metakaolin and a use method thereof. The repair materials consist of lime, bentonite, metakaolin, slag powder, phosphogypsum, cellulose ether, starch ether and sand. The repair materials can conduct rapid repair and reinforce for cob brick structure defects and thus improve mechanical performances and durability of the repaired cob brick structures, and extend the use life of the cob brick structures. The repair materials are suitable for the cob brick structure surface repair, structural reinforcement and fissure repair.

Description

Cob brick structure repair material prepared by a kind of utilization lime, bentonite and metakaolin And its application method
Technical field
The present invention relates to building materials technical field, and in particular to one kind is prepared using lime, bentonite and metakaolin Cob brick structure repair material and its application method.
Background technology
Ancient Times in China building structure major part is based on cob brick material.Existing remnants has substantial amounts of earth construction site, wraps Include the house of living in caves on loess tableland, rammed-earth construction into city wall, plateau, it with cob brick is main knot that the wall of adobe masonry etc. is Structure material.On the other hand, compared to other natural materials and industrial materials building system, cob brick is a kind of very cheap and raw State environmental-friendly construction material, the building structure of its main material has heat-insulating property superior, reliability and durability, labour's input, material Low cost and other advantages, thus there is certain development space in building with cob brick as primary structural material.
As other building structure, same facing reparation of building structure based on cob brick is asked to the related of reinforcing Topic, especially for architectural engineerings such as the time-honored scenic spots and historical sites, due to need to as far as possible ensure the history of building after repairing itself Property, authenticity and integrality, and the building being repaired has the features such as being not easy to secondary reparation, is increased and it is repaired and is reinforced Difficulty of construction.Cob brick structural material own characteristic, loosely organized, porosity is larger, mechanical property is relatively low and to water compared with The characteristics such as sensitivity so that repaired to it and reinforce increasingly complex.In Practical Project, because different patching materials are to based on cob brick Building structure reparation has key effect with consolidation effect.Therefore, technical staff repairs to it and selects particularly careful with reinforcement material Weight.
There is preferable compatibility in view of the hydrated product and the cob brick structure being repaired of lime, with pozzolanic activity The addition of the material such as kaolin and slag powders can improve the mechanical strength of repair materials, bentonite, cellulose ether and starch ether Can improve the water-retaining property and workability of repair materials, the present inventor by lime, metakaolin, slag powders, ardealite, bentonite, After the mixing of the materials such as cellulose ether, starch ether and sand, a kind of cob brick structure repair material of dependable performance has been developed into.Relative to Existing traditional patching material, the present invention has energy-conserving and environment-protective, low production cost, easy construction and to be repaired construction bonds strong The advantages of degree height, excellent in durability.
Through retrieval, cob brick structure repair material is prepared using lime, bentonite, cellulose ether, starch ether, metakaolin etc. Material, still belongs to the first time at home.
The content of the invention
Repaiied present invention aim at cob brick structure is prepared using lime, bentonite, cellulose ether, starch ether, metakaolin Material is mended, has the advantages that low cost, service behaviour are high, mechanical property is good and endurance quality is high.
Cob brick structure repair material prepared by utilization lime proposed by the present invention, bentonite and metakaolin, by lime, swollen Profit soil, metakaolin, slag powders, ardealite, cellulose ether, starch ether, sand are constituted, and the weight ratio of each component is:
Lime 100
Bentonite 3-13
Metakaolin 35-65
Slag powders 3-12
Ardealite 2-8
Cellulose ether 0.2-0.8
Starch ether 0.08-0.3
Sand 350-700.
Each component preferably weight ratio is:
Lime 100
Bentonite 7-10
Metakaolin 45-55
Slag powders 6-10
Ardealite 4-6
Cellulose ether 0.4-0.6
Starch ether 0.1-0.25
Sand 450-650.
The preparation side of cob brick structure repair material prepared by utilization lime proposed by the present invention, bentonite and metakaolin Method, comprises the concrete steps that:Each component is weighed by foregoing part by weight, after raw material is well mixed by physical mechanical, that is, is obtained Required product.
In the present invention, after lime is as Binder Materials and water mix, can penetrate into cob brick inside configuration, aquation occur anti- Should, hydrated product is produced, entirety can be formed with the defect wall for being repaired body in a short time.Metakaolin can be in the effect of lime Under, the product Ca (OH) with lime production2Hydration reaction is produced, improves the microstructure of gelling system, improve durability.Slag Powder can inspire pozzolanic activity under ardealite and alkalescence condition, improve the long-term mechanical property of repair materials.Bentonite is made It is water-keeping thickening component, it is swelling in lime slurry, and connected metakaolin and lime particle by internal void suction-operated It is connected together, reduces particle sedimentation, while ensure that material globality in itself, and do not produce excreting water phenomenon, is being compounded with In the presence of organic water retainer cellulose ether and starch ether, water-retaining property and the thixotropic property of repair materials are improved.
In the present invention, in (65-75) %, the content of organic matter should be less than 30% to the CaO content of the lime, and specific surface area is (12-15)m2/kg。
In the present invention, the river sand is middle sand, and modulus of fineness is 2.5-3.0, and bulk density is (1450-1650) kg/m3
In the present invention, the bentonite is calcium-base bentonite, and fineness is 300 mesh, and smectite content is 65%-80%.
In the present invention, the cellulose ether is that viscosity is 60,000 MPas.
In the present invention, the starch ether viscosity is less than 5% in (500-800) Pas, water content.
In the present invention, the slag powders are the one kind in S95 slag powders or S105 slag powders.
The present invention is grey matter, and when using, suitable amount of water is the 20%-40% of solid material, specific amount of water root Factually border workability experiment determines.
The present invention is used as repairing cob brick structure, with more excellent water-retaining property and mobility, can penetrate into soil In brick fault location, complete structure can be formed with body is repaired after hardening, and with certain compensation shrinkage, mechanical property with it is resistance to Long property is very excellent.
The present invention can be widely applied in the new and old building thing based on cob brick structure to the corrosion-free effect of cob brick structure The repairing of exterior wall and reinforcing.
Specific embodiment
A kind of embodiment 1, cob brick structure repair material prepared by utilization lime, bentonite and metakaolin presses lime 100, Bentonite 3, metakaolin 35, S105 slag powders 3, ardealite 2, cellulose ether 0.2, starch ether 0.08, the mass ratio of sand 350 claims It is well mixed after taking.Added water by the 20% of mortar gross dry weight amount and stirred, obtain final product required product.The performance test results are shown in Table 1.
A kind of embodiment 2, cob brick structure repair material prepared by utilization lime, bentonite and metakaolin presses lime 100, Bentonite 13, metakaolin 65, S95 slag powders 12, ardealite 8, cellulose ether 0.8, starch ether 0.3, the mass ratio of sand 700 claims It is well mixed after taking.Added water by the 40% of mortar gross dry weight amount and stirred, obtain final product required product.The performance test results are shown in Table 1.
A kind of embodiment 3, cob brick structure repair material prepared by utilization lime, bentonite and metakaolin presses lime 100, Bentonite 8, metakaolin 50, S105 slag powders 8, ardealite 5, cellulose ether 0.5, starch ether 0.18, the mass ratio of sand 550 claims It is well mixed after taking.Added water by the 35% of mortar gross dry weight amount and stirred, obtain final product required product.The performance test results are shown in Table 1.
The embodiment the performance test results of table 1

Claims (9)

1. the cob brick structure repair material that prepared by a kind of utilization lime, bentonite and metakaolin, it is characterised in that by lime, swollen Profit soil, metakaolin, slag powders, ardealite, cellulose ether, starch ether and sand are constituted, and the weight ratio of each component is:
Lime 100
Bentonite 3-13
Metakaolin 35-65
Slag powders 3-12
Ardealite 2-8
Cellulose ether 0.2-0.8
Starch ether 0.08-0.3
Sand 350-700.
2. the cob brick structure repair material that prepared by utilization lime according to claim 1, bentonite and metakaolin, it is special Levy is that the weight ratio of each component is:
Lime 100
Bentonite 7-10
Metakaolin 45-55
Slag powders 6-10
Ardealite 4-6
Cellulose ether 0.4-0.6
Starch ether 0.1-0.25
Sand 450-650.
3. cob brick structure repair material prepared by utilization lime according to claim 1, bentonite and metakaolin, its The CaO content of the lime is characterised by (65-75) %, the content of organic matter should be less than 30%, and specific surface area is (12-15) m2/ kg。
4. cob brick structure repair material prepared by utilization lime according to claim 1, bentonite and metakaolin, its The river sand is characterised by for middle sand, modulus of fineness is 2.5-3.0, bulk density is (1450-1650) kg/m3
5. cob brick structure repair material prepared by utilization lime according to claim 1, bentonite and metakaolin, its The bentonite is characterised by for calcium-base bentonite, fineness is 300 mesh, and smectite content is 65%-80%.
6. cob brick structure repair material prepared by utilization lime according to claim 1, bentonite and metakaolin, its It is characterised by that the cellulose ether is 60,000 MPas for viscosity.
7. cob brick structure repair material prepared by utilization lime according to claim 1, bentonite and metakaolin, its The starch ether viscosity is characterised by (500-800) Pas, water content should be less than 5%.
8. cob brick structure repair material prepared by utilization lime according to claim 1, bentonite and metakaolin, its It is characterised by that the slag powders are the one kind in S95 slag powders or S105 slag powders.
9. the cob brick structure repair material that prepared by a kind of utilization lime as claimed in claim 1, bentonite and metakaolin Application method, it is characterised in that add the water of cob brick structure repair material weight 20%-40%, constructed by stirring.
CN201611019414.4A 2016-11-21 2016-11-21 Cob brick structure repair materials prepared by using lime, bentonite and metakaolin and use method thereof CN106699081A (en)

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Application Number Priority Date Filing Date Title
CN201611019414.4A CN106699081A (en) 2016-11-21 2016-11-21 Cob brick structure repair materials prepared by using lime, bentonite and metakaolin and use method thereof

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Application Number Priority Date Filing Date Title
CN201611019414.4A CN106699081A (en) 2016-11-21 2016-11-21 Cob brick structure repair materials prepared by using lime, bentonite and metakaolin and use method thereof

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050092210A1 (en) * 2003-10-30 2005-05-05 Radtke Clifford J.Jr. Method of forming hydraulic cement protective coatings
JP2007161507A (en) * 2005-12-12 2007-06-28 Taiheiyo Material Kk Highly durable cross-section repairing material
CN101337802A (en) * 2008-08-15 2009-01-07 同济大学 Large-doping-amount slag powder dry mixing mortar using desulphurization gypsum as excitant
CN101781105A (en) * 2009-01-20 2010-07-21 同济大学 Anhydrous loam brick product repair agent
CN103570286A (en) * 2013-08-14 2014-02-12 朱文云 Concrete for rehabilitating historic building
CN104129962A (en) * 2014-07-09 2014-11-05 宁波工程学院 Post-tensioned prestressed porelike grouting agent and preparation method thereof
FR3011546A1 (en) * 2013-10-08 2015-04-10 Olivier Labesse Mixture of lime and metakaolin, for manufacturing products, in the field of construction
CN104829201A (en) * 2015-04-21 2015-08-12 东南大学 Protection brick and stone ancient building repair lime bonding material
CN104860610A (en) * 2015-05-14 2015-08-26 青岛海蓝海洋复合功能材料科技有限公司 High viscosity building wall repair material
CN105837137A (en) * 2016-04-08 2016-08-10 武汉理工大学 Composite reinforcing type mortar for rapid repairing

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050092210A1 (en) * 2003-10-30 2005-05-05 Radtke Clifford J.Jr. Method of forming hydraulic cement protective coatings
JP2007161507A (en) * 2005-12-12 2007-06-28 Taiheiyo Material Kk Highly durable cross-section repairing material
CN101337802A (en) * 2008-08-15 2009-01-07 同济大学 Large-doping-amount slag powder dry mixing mortar using desulphurization gypsum as excitant
CN101781105A (en) * 2009-01-20 2010-07-21 同济大学 Anhydrous loam brick product repair agent
CN103570286A (en) * 2013-08-14 2014-02-12 朱文云 Concrete for rehabilitating historic building
FR3011546A1 (en) * 2013-10-08 2015-04-10 Olivier Labesse Mixture of lime and metakaolin, for manufacturing products, in the field of construction
CN104129962A (en) * 2014-07-09 2014-11-05 宁波工程学院 Post-tensioned prestressed porelike grouting agent and preparation method thereof
CN104829201A (en) * 2015-04-21 2015-08-12 东南大学 Protection brick and stone ancient building repair lime bonding material
CN104860610A (en) * 2015-05-14 2015-08-26 青岛海蓝海洋复合功能材料科技有限公司 High viscosity building wall repair material
CN105837137A (en) * 2016-04-08 2016-08-10 武汉理工大学 Composite reinforcing type mortar for rapid repairing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
S. ANDREJKOVIČOVǍ, C. ALVES, A. VELOSA, F. ROCHA: "Bentonite as a natural additive for lime and lime-metalcaolin mortars used for restoration of adobe buildings", 《CEMENT & CONCRETE COMPOSITES》 *

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