CN110240459A - A kind of masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag reconciliation water lime mortar and preparation method - Google Patents
A kind of masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag reconciliation water lime mortar and preparation method Download PDFInfo
- Publication number
- CN110240459A CN110240459A CN201910581060.XA CN201910581060A CN110240459A CN 110240459 A CN110240459 A CN 110240459A CN 201910581060 A CN201910581060 A CN 201910581060A CN 110240459 A CN110240459 A CN 110240459A
- Authority
- CN
- China
- Prior art keywords
- fluidized bed
- slag
- bed combustion
- coal ash
- combustion coal
- 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.)
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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
- 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
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
-
- 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
- C04B2111/72—Repairing or restoring existing buildings or building 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention discloses a kind of masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag and reconciles water lime mortar and preparation method thereof, belong to building material technical field, in parts by weight, raw material includes following component: 10~25 parts of white lime, 5~15 parts of fluidized bed combustion coal ash/slag, 45~68 parts of aggregate, 0.5~2 part of additive；Masonry ancient building reinforcement and repair of the present invention is moderate with fluidized bed combustion coal ash/slag reconciliation water lime mortar strength development, it is small to shrink, it is good with masonry ancient building matrix compatibility, matching, it can be applied to various masonry ancient building reinforcement and repair engineerings, and largely utilize industrial solid castoff, economic cost is lower, has good environmental protection and energy-conserving profit waste effect.
Description
Technical field
The present invention relates to building material technical fields, are prepared using fluidized bed combustion coal ash/slag, more particularly to a kind of applied to masonry
The reconciliation water lime mortar and preparation method of ancient building reinforcing and repairing.
Background technique
The urgent need for being led to maintenance cementitious material is urgently repaired in a large amount of masonries in China and ground matter ancient building ruins.In view of
Cement and ancient building matrix physical and chemical performance are incompatible, and air hardening lime intensity and durability are not achieved protection and require, mortar modelled after an antique
Cumbersome, curing rate are slowly and quality is not easy to control, and hydraulic lime becomes the hot spot of modern protection materials research.
Summary of the invention
The object of the present invention is to provide a kind of masonry ancient building reinforcement and repair with fluidized bed combustion coal ash/slag reconcile water lime mortar, with
The above-mentioned problems of the prior art is solved, developing its water lime mortar strength, moderate, contraction is small, with masonry ancient building base
Compatability, matching are good.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag reconciliation water lime mortar, and raw material includes
Following component: white lime, fluidized bed combustion coal ash/slag, aggregate and additive.
As a further improvement of the present invention, the masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag reconciliation water lime
Mortar, in parts by weight, raw material include following component: 10~25 parts of white lime, 5~15 parts of fluidized bed combustion coal ash/slag, aggregate 45~68
Part, 0.5~2 part of additive.
As a further improvement of the present invention, the fluidized bed combustion coal ash/slag is circulating fluidized bed combustion ash.
As a further improvement of the present invention, the aggregate is discarded masonry powder.
As a further improvement of the present invention, the additive includes: vinyl redispersable latex powder by weight
0.4~1.2 part, 0.03~0.15 part of hydroxyethylmethylcellulose, 0.08~0.4 part of organosilicon moisture repellent, wood fibre 0.05
~0.2 part.
As a further improvement of the present invention, the hydroxyethylmethylcellulose viscosity is 10000~45000mPas.
As a further improvement of the present invention, the wood fibre diameter is 0.5~3mm.
The present invention also provides a kind of above-mentioned masonry ancient building reinforcement and repair systems of fluidized bed combustion coal ash/slag reconciliation water lime mortar
Preparation Method, comprising the following steps:
(1) additive and aggregate are added into high-speed mixer, is uniformly mixed；
(2) revolving speed for adjusting high-speed mixer, is added white lime and fluidized bed combustion coal ash/slag, is uniformly mixed, obtains masonry ancient architecture
Build reinforcement and repair fluidized bed combustion coal ash/slag reconciliation water lime mortar.
As a further improvement of the present invention, in step (1), the revolving speed of mixing machine is 500~1000r/min.
As a further improvement of the present invention, which is characterized in that in step (2), revolving speed is 80~250r/min.
Masonry ancient building reinforcement and repair of the present invention is one pack system with fluidized bed combustion coal ash/slag reconciliation water lime mortar finished product
Powder body material, it only need to stir 3~4min with water at the construction field (site) at a given proportion, that is, can be used by when construction.
The invention discloses following technical effects:
Fluidized bed burned-coal fluidized bed combustion coal ash/slag (fluidized bed combustion coal ash/slag) is the lime-ash generated after coal burns in fluidized bed combustion coal burning boiler, packet
Include the CFB residues of the fluidized bed combustion coal ash/slag that flue is collected into and furnace bottom discharge.China's fluidized bed burned-coal fluidized bed combustion coal ash/slag annual emissions are 2000
Ten thousand t or so, but the research and utilization of fluidized bed combustion coal ash/slag are still in its infancy, using there are some problems, for example, fluidized bed combustion coal ash/slag
The common coal-powder boiler flyash of water demand ratio is big, limits its application in cement concrete, II-contained in fluidized bed combustion coal ash/slag
CaSO4It is limited in the resource and recycling of the field of building materials with dilatant minerals such as free CaOs, and reconciles the water lime
Reduce using the expansion characteristics of fluidized bed combustion coal ash/slag and shunk caused by lime-carbonated reaction dehydration, therefore, using fluidized bed combustion coal ash/slag and
White lime optimizes compound method and the reconciliation water lime is made.
For the present invention by scientific research and practice test, the volcanic ash of integrated reuse-recycle fluidized-bed combustion boiler fluidized bed combustion coal ash/slag is living
Property and expansion characteristics, high-adhesion, water resistance and the crack resistance of polymeric additive, and by Study on Preparation, successfully make
Standby strength development a kind of out is moderate, volume stability is good, good with masonry ancient building compatibility, can be applied to the reinforcing of masonry ancient building
The reconciliation water lime mortar of repairing, but also largely comprehensively utilize industrial solid castoff, economizes on resources and the energy, has aobvious
Economic benefit, social benefit and the environmental benefit of work.
Masonry ancient building reinforcement and repair proposed by the present invention with fluidized bed combustion coal ash/slag reconcile water lime mortar, using white lime with
The mode of fluidized bed combustion coal ash/slag optimization compounding is as major gelled material.Compared with cement-based mortar, it can substantially reduce and utilize cement institute
The high energy consumption of generation, and more preferably with the compatibility of masonry ancient building matrix；Compared with natural water lime base mortar, can obviously it drop
Low cost, moreover it is possible to promote the resource utilization of solid waste.With significant economic benefit and the value of environmental protection, convenient for extensive
It promotes and applies.
The natural water lime of the alternative expensive European import of the reconciliation water lime prepared by the present invention, for bonding
Meet the urgent need of rehabilitating historic building with reinforcement material so as to masonry class historical relic and rehabilitating historic building, there is biggish history
Culture protection value；Also an effective way can be searched out using fluidized bed combustion coal ash/slag for high level, it is de- to be conducive to China's fluidized bed burned-coal
The popularization and application of sulphur technology respond the requirement of sustainable development, have good ecological environment benefit and social benefit.
Detailed description of the invention
Fig. 1 is that fluidized bed combustion coal ash/slag reconciliation water lime mortar prepared by embodiment 1 repairs metope appearance；
Fig. 2 is that cement mortar prepared by comparative example 2 repairs metope appearance.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
In the present embodiment, raw materials and performance are as follows:
White lime: commercially available purity is greater than 98% hydrated lime in powder.
Fluidized bed combustion coal ash/slag: specific surface area 380m2The circulating fluidized bed combustion ash of/kg.
The natural water lime: strength grade is the natural water lime of European import of NHL2.
Cement: the portland cement that strength grade is 42.5.
Additive: vinyl redispersable latex powder, the hydroxyethylmethylcellulose, organic that viscosity is 30000mPas
Silicon hydrophober (80 powder silylation hydrophober of seal), the wood fibre that diameter is 0.5~3mm.
Aggregate: discarded clay brick powder.
Water: tap water.
Embodiment 1-5
In embodiment 1-5, masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag reconciliation water lime mortar, with weight
Part meter is measured, raw material includes following component: 10~25 parts of white lime, 5~15 parts of fluidized bed combustion coal ash/slag, 45~68 parts of aggregate, additive
0.5~2 part.
In the present embodiment, the additive include: by weight 0.4~1.2 part of vinyl redispersable latex powder,
Viscosity is 0.03~0.15 part of the hydroxyethylmethylcellulose of 10000~45000mPas, organosilicon moisture repellent 0.08~0.4
Part, 0.05~0.2 part of wood fibre that diameter is 0.5~3mm.
Each raw material proportioning is shown in Table 1 in embodiment 1-5.
The preparation method of above-mentioned masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag reconciliation water lime mortar, including following step
It is rapid:
(1) vinyl redispersable latex powder, hydroxyethylmethylcellulose, organosilicon hydrophobic are added into high-speed mixer
Agent, wood fibre and aggregate are uniformly mixed under the revolving speed of 500~1000r/min；
(2) revolving speed for adjusting high-speed mixer is 80~250r/min, and white lime and fluidized bed combustion coal ash/slag is added, is uniformly mixed；
Water is added, is stirred using mortar mixer automatic catch, is uniformly mixed it, can discharge, standard examination is then made
Block.
Comparative example 1-2
Unlike embodiment 1-5, using the natural water lime as cementitious material in comparative example 1, with silicon in comparative example 2
Acid salt cement is normal to compare fluidized bed combustion coal ash/slag reconciliation water lime mortar and current masonry ancient building reinforcement and repair as cementitious material
The performance of natural water admant lime and brick and cement mortar.
The fluidized bed combustion coal ash/slag of embodiment 1-5 and comparative example 1-2 reconciliation water lime mortar and comparison mortar mix ratio are summarized
Such as table 1,
1 fluidized bed combustion coal ash/slag of table reconciliation water lime mortar and comparison mortar mix ratio
Performance detection is carried out to mortar made from above-described embodiment 1-5 and comparative example 1-2, the results are shown in Table 2,
2 the performance test results of table
1 fluidized bed combustion coal ash/slag of embodiment reconciliation water lime mortar and 2 silicate cement cement mortar of comparative example repair ancient building metope
Effect as shown in Fig. 1~2.
The results show that fluidized bed combustion coal ash/slag reconciliation water lime mortar proposed by the present invention, appearance and conventional lime matter are gelled
Material is consistent, meets the requirement of rehabilitating historic building material " restoring the old as the old ".Fluidized bed combustion coal ash/slag reconcile water lime mortar also have with
The close even higher compression strength of natural water admant lime and brick, flexural strength and gas permeability, and be able to achieve lower shrinking percentage,
Solvable salt content and elasticity modulus；Importantly, its cost is far below natural water admant lime and brick.With silicate cement cement mortar
It compares, it is lower that fluidized bed combustion coal ash/slag reconciles water lime mortar early strength, but intensity at 180 days is not much different, and has and hold
The continuous strength development rule increased, lower shrinking percentage, solvable salt content and elasticity modulus and excellent gas permeability, guarantee
The excellent compatibility of itself and masonry ancient building matrix.Therefore, fluidized bed combustion coal ash/slag proposed by the present invention reconcile water lime mortar can be with
Wide popularization and application is in various masonry ancient building reinforcement and repair engineerings.
Embodiment described above is only that preferred embodiment of the invention is described, and is not carried out to the scope of the present invention
It limits, without departing from the spirit of the design of the present invention, those of ordinary skill in the art make technical solution of the present invention
Various changes and improvements, should all fall into claims of the present invention determine protection scope in.
Claims (10)
1. a kind of masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag reconciles water lime mortar, which is characterized in that its raw material includes
Following component: white lime, fluidized bed combustion coal ash/slag, aggregate and additive.
2. masonry ancient building reinforcement and repair according to claim 1 fluidized bed combustion coal ash/slag reconciliation water lime mortar, feature
It is, in parts by weight, raw material includes following component: 10~25 parts of white lime, 5~15 parts of fluidized bed combustion coal ash/slag, aggregate 45~68
Part, 0.5~2 part of additive.
3. masonry ancient building reinforcement and repair according to claim 1 fluidized bed combustion coal ash/slag reconciliation water lime mortar, feature
It is, the fluidized bed combustion coal ash/slag is circulating fluidized bed combustion ash.
4. masonry ancient building reinforcement and repair according to claim 1 fluidized bed combustion coal ash/slag reconciliation water lime mortar, feature
It is, the aggregate is discarded masonry powder.
5. masonry ancient building reinforcement and repair according to claim 1 fluidized bed combustion coal ash/slag reconciliation water lime mortar, feature
It is, the additive includes: 0.4~1.2 part of vinyl redispersable latex powder, hydroxyethylmethylcellulose by weight
0.03~0.15 part, 0.08~0.4 part of organosilicon moisture repellent, 0.05~0.2 part of wood fibre.
6. masonry ancient building reinforcement and repair according to claim 5 fluidized bed combustion coal ash/slag reconciliation water lime mortar, feature
It is, the hydroxyethylmethylcellulose viscosity is 10000~45000mPas.
7. masonry ancient building reinforcement and repair according to claim 5 fluidized bed combustion coal ash/slag reconciliation water lime mortar, feature
It is, the wood fibre diameter is 0.5~3mm.
8. a kind of claim 1-7 described in any item masonry ancient building reinforcement and repairs fluidized bed combustion coal ash/slag reconciliation water lime mortar
Preparation method, which comprises the following steps:
(1) additive and aggregate are added into high-speed mixer, is uniformly mixed；
(2) revolving speed for adjusting high-speed mixer, is added white lime and fluidized bed combustion coal ash/slag, is uniformly mixed, obtains masonry ancient building and add
Gu reparation fluidized bed combustion coal ash/slag reconciliation water lime mortar.
9. the masonry ancient building reinforcement and repair according to claim 8 preparation side of fluidized bed combustion coal ash/slag reconciliation water lime mortar
Method, which is characterized in that in step (1), the revolving speed of mixing machine is 500~1000r/min.
10. the masonry ancient building reinforcement and repair according to claim 8 preparation of fluidized bed combustion coal ash/slag reconciliation water lime mortar
Method, which is characterized in that in step (2), revolving speed is 80~250r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910581060.XA CN110240459A (en) | 2019-06-29 | 2019-06-29 | A kind of masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag reconciliation water lime mortar and preparation method |
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| CN201910581060.XA CN110240459A (en) | 2019-06-29 | 2019-06-29 | A kind of masonry ancient building reinforcement and repair fluidized bed combustion coal ash/slag reconciliation water lime mortar and preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507055A (en) * | 2022-03-07 | 2022-05-17 | 西安建筑科技大学 | High-permeability blended hydraulic lime repair slurry prepared from superfine volcanic ash powder |
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| CN103553514A (en) * | 2013-10-29 | 2014-02-05 | 同济大学 | Phosphorus slag powder doped dry powdered anti-crack mortar |
| CN104386995A (en) * | 2014-10-28 | 2015-03-04 | 浙江大学 | Modified glutinous rice mortar for perfusion and preparation method of modified glutinous rice mortar |
| KR20190013061A (en) * | 2017-07-31 | 2019-02-11 | 전의현 | Binder for non-cement color concrete using activated slag and concrete manufactured using the same |
| CN106830862B (en) * | 2017-01-17 | 2019-04-12 | 西安建筑科技大学 | A kind of lime base raw-soil texture ornament materials and preparation method thereof |
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2019
- 2019-06-29 CN CN201910581060.XA patent/CN110240459A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61243885A (en) * | 1985-04-22 | 1986-10-30 | Kazuhiko Kishigami | Solidifying agent |
| CN103553514A (en) * | 2013-10-29 | 2014-02-05 | 同济大学 | Phosphorus slag powder doped dry powdered anti-crack mortar |
| CN104386995A (en) * | 2014-10-28 | 2015-03-04 | 浙江大学 | Modified glutinous rice mortar for perfusion and preparation method of modified glutinous rice mortar |
| CN106830862B (en) * | 2017-01-17 | 2019-04-12 | 西安建筑科技大学 | A kind of lime base raw-soil texture ornament materials and preparation method thereof |
| KR20190013061A (en) * | 2017-07-31 | 2019-02-11 | 전의현 | Binder for non-cement color concrete using activated slag and concrete manufactured using the same |
Non-Patent Citations (1)
| Title |
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| 赵毅等: "《电力环境保护技术》", 31 December 2007, 中国电力出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507055A (en) * | 2022-03-07 | 2022-05-17 | 西安建筑科技大学 | High-permeability blended hydraulic lime repair slurry prepared from superfine volcanic ash powder |
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Application publication date: 20190917 |