CN102295446A - High performance structure reinforcement mortar composition and preparation process thereof - Google Patents
High performance structure reinforcement mortar composition and preparation process thereof Download PDFInfo
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- CN102295446A CN102295446A CN2011101630688A CN201110163068A CN102295446A CN 102295446 A CN102295446 A CN 102295446A CN 2011101630688 A CN2011101630688 A CN 2011101630688A CN 201110163068 A CN201110163068 A CN 201110163068A CN 102295446 A CN102295446 A CN 102295446A
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Abstract
The invention discloses a high performance structure reinforcement mortar composition, prepared by using ordinary portland cement grade 42.5 and active vulcanic ash ingredients as a main agent of a cementing material, using thickening water retentive ingredients, polycarboxylic acid type super-plasticizer and accelerating ingredients for modifying the main agent, and adding anti-cracking fiber, quartz sand and re-dispersible gelatine powder for special use of mortar. According to the invention, by adding the re-dispersible gelatine powder and active additives in the ordinary portland cement basic complex, the lasting quality of the mortar and the lasting quality of the whole comprising mortar and reinforced concrete reinforcement substrate can be improved effectively; and simultaneously, the mortar composition has no toxicity to the human body and environment, thus being a new energy efficient green construction material.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of have good thixotropic property, endurance quality and its fill a prescription adjustable structural strengthening mortar constituent and blending process thereof according to different construction environments.
Background technology
Though a large amount of concrete that China builds during first upsurge in construction after setting up and the civilian and worker of masonry structure do not reach its design life temporarily with facility, but there is potential safety hazard in various degree in the buildings of this type of significant proportion owing to using the improper or build guality reason of maintenance.Therefore, in design service life normal its function of performance in the phase, the user mode of buildings is made regular check on, the damage that occurs is carried out on-call maintenance and reinforcing is very important in order to guarantee buildings.Based on this trend, predictable in 21 century, in the building structure based on concrete and masonry structure, the tailored version reinforcement material is with a wide range of applications and market.
It is by the formulated in proportion hydraulicity premixing dry-mix of 42.5 grades of ordinary Portland cements, quartz sand and active admixture that high performance structures is reinforced mortar, has (1) extremely low drying shrinkage; (2) with concrete or the good adhesive property of masonry component basal plane; (3) endurance quality excellence; (4) a series of high-performances that are better than traditional technology preparation mortar such as good thixotropic property.High performance structures is reinforced mortar can carry out the trowelling construction with plaster trowel, and also available Putamcister, spouting plants such as Melomat or Turbosol carry out the wet shot construction.It is convenient that tradition trowelling constructional method has construction, and the working-yard is not had advantages such as particular requirement with the construction workman; And the mortar injection method is a kind of novel building constructional method, is particularly useful for reinforcing mat in the structure enlarging section method-modified mortar reinforcement technique.Application number is that 200910196104.3 my the injection mortar constructional method that is used for structural strengthening of taking charge of patent disclosure is compared with the traditional technology that routine is manually plastered, advantage such as have good site operation performance operating efficiency height, construction quality is stable and construction intensity is low.
Concrete structure durability is meant under actual service conditions, and concrete structure is resisted various environmental factors effects such as atmospheric influence, chemical erosion and other deterioration processes and kept the ability of its performance for a long time.Civilian and worker with the weather resistance inefficacy main forms of skeleton construction for owing to steel bar corrosion that carboniogenesis caused with and the destruction of the skeleton construction that caused.Therefore, skeleton construction is repaired and reinforcing engineering, must be considered the endurance quality of repairing and reinforcement material self, and material and the integrant endurance quality of steel bar concrete reinforcement matrix.
Consider the susceptibility of structural strengthening mortar to practice of construction environmental factors (temperature, humidity, illumination etc.), therefore, in actual engineering construction process, structural strengthening mortar prescription is formed the adaptation and the compatible normal development of mortar strength and the quality of construction quality of also directly influencing to above environmental factors.
Summary of the invention
The present invention proposes a kind of structural strengthening with good thixotropic property, endurance quality and workability and reinforces mortar constituent and blending process thereof with high performance structures, its purpose be to improve with improve common reinforcing mortar self endurance quality with and with concrete or the integrant endurance quality of masonry matrix, improve high performance structures simultaneously and reinforce the mortar prescription and form adaptation and compatibility different construction environment factors (temperature, humidity, illumination etc.).
The present invention is achieved by the following technical solutions:
A kind of high performance structures is reinforced the mortar constituent, with 42.5 grades of ordinary Portland cements, active pozzolans component is gelling material host, adopt thickening water-retaining component, poly carboxylic acid series super plasticizer, the short component of coagulating that it is carried out modification, also dosed mortar tailored version anti-crack fiber, quartz sand, redispersible rubber powder.
Preferably, described active pozzolans component fineness is that 45 μ m tail over 1-6%, and Blain specific surface is 440-480m
2/ kg.
Preferably, described thickening water-retaining component, poly carboxylic acid series super plasticizer, the short component property that coagulates satisfy " cementitious composite mortar reinforcing mat reinforced concrete " (CECS242:2008) related request respectively.
Preferably, described mortar tailored version anti-crack fiber is a polymer fiber, the tensile strength 〉=300N/mm of this polymer fiber
2, fiber diameter range 10-100 μ m, length range 4-20mm.
Preferably, each constituent mass proportioning is:
The present invention also provides above-mentioned high performance structures to reinforce the blending process of mortar constituent, its concrete steps are as follows: at first active pozzolans component and each mortar tailored version admixture are carried out the premixing mixing in proportion, then with the mixture that stirs with 42.5 grades of ordinary Portland cements and quartz sand weighing in proportion, mix, stir, pack, obtain indication high performance structures of the present invention and reinforce the mortar constituent.
The another kind of blending process that the present invention also provides above-mentioned high performance structures to reinforce the mortar constituent, directly with each components in certain proportion weighing, mix, stir, pack, obtain indication high performance structures of the present invention and reinforce the mortar constituent.
Beneficial effect: the present invention adopts redispersible polymer glue powder and several active admixture, make an addition to the endurance quality that can improve mortar in the basic title complex of ordinary mortar effectively and with the integrant endurance quality of steel bar concrete reinforcement matrix, simultaneously human body and environment not being poisoned, is a kind of novel energy-conserving green construction material.The performance characteristics that this high performance structures is reinforced mortar is:
(1) good thixotropic property is particularly suitable for facing upward and the vertical surface construction, and individual layer construction thickness can reach 40mm;
(2) has the good carbonation properties of resisting, its anti-CO
2Permeability coefficient ц is about 1400, and anti-water vapor permeation coefficient ц is about 120;
(3), can satisfy the site operation requirement by adjusting prescription and component according to different site operation envrionment temperatures;
(4) good frost resistance performance and sulfate-resistant corrosion performance.
In addition, this high performance structures is reinforced mortar, and also to have a blending process simple, with low cost, is easy to large-scale application, stable performance, but prolonged storage, transportation and advantage such as easy to use.
Embodiment
Below embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1:
High performance structures is reinforced each set of dispense of mortar such as descending (winter construction):
The concrete structure reinforcement performance index of polymer mortar:
The high performance structures of aforementioned proportion is reinforced the blending process of mortar constituent, and its concrete steps are as follows:
(1) at first active pozzolans component and each mortar tailored version admixture are carried out the premixing mixing in proportion;
(2) then with the mixture that stirs with 42.5 grades of ordinary Portland cements and quartz sand weighing in proportion, mix, stir, pack, obtain indication high performance structures of the present invention and reinforce the mortar constituent.
Embodiment 2:
Concrete structure reinforcement with each set of dispense of polymer mortar such as down (hot weather construction):
The concrete structure reinforcement performance index of polymer mortar:
The high performance structures of aforementioned proportion is reinforced the blending process of mortar constituent, and its concrete steps are: directly with each components in certain proportion weighing, mix, stir, pack, obtain indication high performance structures of the present invention and reinforce the mortar constituent.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. a high performance structures is reinforced the mortar constituent, it is characterized in that, with 42.5 grades of ordinary Portland cements, active pozzolans component is gelling material host, adopt thickening water-retaining component, poly carboxylic acid series super plasticizer, the short component of coagulating that it is carried out modification, also dosed mortar tailored version anti-crack fiber, quartz sand, redispersible rubber powder.
2. a kind of high performance structures according to claim 1 is reinforced the mortar constituent, it is characterized in that described active pozzolans component fineness is that 45 μ m tail over 1-6%, and Blain specific surface is 440-480m
2/ kg.
3. a kind of high performance structures according to claim 1 is reinforced the mortar constituent, it is characterized in that described thickening water-retaining component, poly carboxylic acid series super plasticizer, the short component property that coagulates satisfy " cementitious composite mortar reinforcing mat reinforced concrete " (CECS242:2008) related request respectively.
4. a kind of high performance structures according to claim 1 is reinforced the mortar constituent, it is characterized in that described mortar tailored version anti-crack fiber is a polymer fiber, the tensile strength 〉=300N/mm of this polymer fiber
2, fiber diameter range 10-100 μ m, length range 4-20mm.
5. a kind of high performance structures according to claim 1 is reinforced the mortar constituent, it is characterized in that each constituent mass proportioning is:
6. a high performance structures as claimed in claim 1 is reinforced the blending process of mortar constituent, its concrete steps are as follows: at first active pozzolans component and each mortar tailored version admixture are carried out the premixing mixing in proportion, then with the mixture that stirs with 42.5 grades of ordinary Portland cements and quartz sand weighing in proportion, mix, stir, pack, obtain described high performance structures and reinforce the mortar constituent, or directly with each components in certain proportion weighing, mix, stir, pack, obtain described high performance structures and reinforce the mortar constituent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110163068.8A CN102295446B (en) | 2011-06-16 | 2011-06-16 | A kind of high performance structure reinforcement mortar constituent and blending process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110163068.8A CN102295446B (en) | 2011-06-16 | 2011-06-16 | A kind of high performance structure reinforcement mortar constituent and blending process thereof |
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| Publication Number | Publication Date |
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| CN102295446A true CN102295446A (en) | 2011-12-28 |
| CN102295446B CN102295446B (en) | 2016-03-09 |
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| CN201110163068.8A Expired - Fee Related CN102295446B (en) | 2011-06-16 | 2011-06-16 | A kind of high performance structure reinforcement mortar constituent and blending process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838334A (en) * | 2012-09-28 | 2012-12-26 | 中铁十九局集团有限公司 | Concrete member repairing agent, preparation method and construction method |
| CN103864381A (en) * | 2014-03-20 | 2014-06-18 | 上海泛欧建筑材料有限公司 | Cement-based inorganic anchor adhesive and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244915A (en) * | 2008-03-25 | 2008-08-20 | 武汉理工大学 | Ultra-plasticizing gravity flow flat crack resistant mortar |
| CN101538136A (en) * | 2009-04-29 | 2009-09-23 | 华南理工大学 | Premixing mortar with high moisture retention and production method thereof |
| CN101811850A (en) * | 2009-12-08 | 2010-08-25 | 河南省绿韵建材有限公司 | Polymer cement-based waterproof dry powder mortar |
-
2011
- 2011-06-16 CN CN201110163068.8A patent/CN102295446B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244915A (en) * | 2008-03-25 | 2008-08-20 | 武汉理工大学 | Ultra-plasticizing gravity flow flat crack resistant mortar |
| CN101538136A (en) * | 2009-04-29 | 2009-09-23 | 华南理工大学 | Premixing mortar with high moisture retention and production method thereof |
| CN101811850A (en) * | 2009-12-08 | 2010-08-25 | 河南省绿韵建材有限公司 | Polymer cement-based waterproof dry powder mortar |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838334A (en) * | 2012-09-28 | 2012-12-26 | 中铁十九局集团有限公司 | Concrete member repairing agent, preparation method and construction method |
| CN102838334B (en) * | 2012-09-28 | 2014-06-11 | 中铁十九局集团有限公司 | Concrete member repairing agent, preparation method and construction method |
| CN103864381A (en) * | 2014-03-20 | 2014-06-18 | 上海泛欧建筑材料有限公司 | Cement-based inorganic anchor adhesive and preparation method thereof |
| CN103864381B (en) * | 2014-03-20 | 2016-08-17 | 上海泛欧建筑材料有限公司 | A kind of cement base inorganic anchoring adhesive and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN102295446B (en) | 2016-03-09 |
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Granted publication date: 20160309 Termination date: 20170616 |