CN102295446B - A kind of high performance structure reinforcement mortar constituent and blending process thereof - Google Patents
A kind of high performance structure reinforcement mortar constituent and blending process thereof Download PDFInfo
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- CN102295446B CN102295446B CN201110163068.8A CN201110163068A CN102295446B CN 102295446 B CN102295446 B CN 102295446B CN 201110163068 A CN201110163068 A CN 201110163068A CN 102295446 B CN102295446 B CN 102295446B
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Abstract
The invention discloses a kind of high performance structure reinforcement mortar constituent, with 42.5 grades of ordinary Portland cements, active pozzolans component for gelling material host, employing thickening water-retaining component, poly carboxylic acid series super plasticizer, short solidifying component carry out modification to it, have also dosed mortar tailored version anti-crack fiber, quartz sand, redispersible rubber powder.The present invention adopts redispersible polymer glue powder and several active admixture, make an addition to the endurance quality that effectively can improve mortar in the basic title complex of ordinary mortar and with the integrant endurance quality of steel bar concrete reinforcement matrix, do not poison human body and environment, be a kind of novel energy-conserving green construction material simultaneously.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of to there is excellent thixotropic property, endurance quality and it fills a prescription adjustable according to different construction environment structural strengthening mortar constituent and blending process thereof.
Background technology
Though the civilian and work facility of a large amount of Concrete and Masonry Structures that China builds during setting up rear first upsurge in construction does not reach its design life temporarily, but the buildings of this type of significant proportion is because use and maintenance is improper or build guality reason, there is potential safety hazard in various degree.Therefore, play its function to ensure that buildings is normal within the design service life phase, the using state of buildings is made regular check on, on-call maintenance is carried out to the damage occurred and reinforcing is very important.Based on this trend, predictable in 21 century, in the building structure based on Concrete and Masonry Structure, tailored version reinforcement material is with a wide range of applications and market.
High performance structure reinforcement mortar is by 42.5 grades of ordinary Portland cements, quartz sand and active admixture hydraulicity premixing dry-mix formulated in proportion, has the drying shrinkage that (1) is extremely low; (2) with concrete or the good adhesive property of masonry component basal plane; (3) excellent durability; (4) a series of high-performance being better than traditional technology preparation mortar such as excellent thixotropic property.High performance structure reinforcement mortar can carry out trowelling construction with plaster trowel, also can carry out wet blasting construction with spouting plants such as Putamcister, Melomat or Turbosol.Tradition trowelling constructional method has convenient construction, to working-yard and construction worker without advantages such as particular requirements; And mortar injection method is a kind of building construction method, be particularly useful for reinforcing mat in structure section-increased method-modified mortar reinforcement technique.Application number be 200910196104.3 I take charge of compared with the traditional technology that the disclosed spray furnace constructional method for structural strengthening of patent and conventional manual plaster, the advantage such as have that excellent site operation performance operating efficiency is high, construction quality stable and construction intensity is low.
Concrete structure durability refers under active usage conditions, and concrete structure resists various environmental factors effect keeps its performance for a long time ability as atmospheric influence, chemical erosion and other deterioration processes.The destruction that the durability damage main forms of civilian and work skeleton construction is the steel bar corrosion that causes due to carboniogenesis and its skeleton construction caused.Therefore, repair and reinforcement engineering is carried out to skeleton construction, the endurance quality of repair and reinforcement material self must be considered, 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 Practical Project construction process, structural strengthening mortar formula composition also directly affects the normal development of mortar strength and the quality of construction quality on the adaptation of above environmental factors with compatible.
Summary of the invention
The present invention proposes a kind of structural strengthening high performance structure reinforcement mortar constituent and the blending process thereof with excellent thixotropic property, endurance quality and workability, its object is to improve and improve common self endurance quality of reinforcing mortar and it is with concrete or the integrant endurance quality of masonry matrix, improving high performance structure reinforcement mortar formula composition to the adaptation of different construction environment factor (temperature, humidity, illumination etc.) and compatibility simultaneously.
The present invention is achieved by the following technical solutions:
A kind of high performance structure reinforcement mortar constituent, with 42.5 grades of ordinary Portland cements, active pozzolans component for gelling material host, employing thickening water-retaining component, poly carboxylic acid series super plasticizer, short solidifying component carry out modification to it, have also dosed mortar tailored version anti-crack fiber, quartz sand, redispersible rubber powder.
Preferably, described active pozzolans component fineness is that 45 μm of sieves 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, short solidifying component property meet " ferrocement reinforced concrete " (CECS242:2008) related request respectively.
Preferably, described mortar tailored version anti-crack fiber is polymer fiber, the tensile strength>=300N/mm of this polymer fiber
2, fiber diameter range 10-100 μm, length range 4-20mm.
Preferably, each constituent mass proportioning is:
Present invention also offers the blending process of above-mentioned high performance structure reinforcement mortar constituent, its concrete steps are as follows: first active pozzolans component and each mortar tailored version admixture are carried out premixing mixing in proportion, then the mixture stirred is weighed in proportion with 42.5 grades of ordinary Portland cements and quartz sand, mix, stirs, packs, obtain indication high performance structure reinforcement mortar constituent of the present invention.
Present invention also offers the another kind of blending process of above-mentioned high performance structure reinforcement mortar constituent, directly each components in certain proportion is weighed, mixes, stirs, packs, obtain indication high performance structure reinforcement mortar constituent of the present invention.
Beneficial effect: the present invention adopts redispersible polymer glue powder and several active admixture, make an addition to the endurance quality that effectively can improve mortar in the basic title complex of ordinary mortar and with the integrant endurance quality of steel bar concrete reinforcement matrix, do not poison human body and environment, be a kind of novel energy-conserving green construction material simultaneously.The performance characteristics of this high performance structure reinforcement mortar is:
(1) excellent thixotropic property, is particularly suitable for facing upward and constructs with vertical surface, and individual layer construction thickness can reach 40mm;
(2) have and excellent resist carbonation properties, its anti-CO
2permeability coefficient ц is about 1400, and vapour resistant permeability coefficient ц is about 120;
(3) according to different site operation envrionment temperatures, site operation requirement is met by adjustment formula and component;
(4) excellent frost resistance performance and Sulfate Corrosion Resistance energy.
In addition, it is simple that this high performance structure reinforcement mortar also has blending process, with low cost, is easy to large-scale application, stable performance, can prolonged storage, transport and the advantage such as easy to use.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1:
The each component proportion of high performance structure reinforcement mortar following (winter construction):
The performance index of concrete structure reinforcement polymer mortar:
The blending process of the high performance structure reinforcement mortar constituent of aforementioned proportion, its concrete steps are as follows:
(1) first active pozzolans component and each mortar tailored version admixture are carried out premixing mixing in proportion;
(2) then the mixture stirred is weighed in proportion with 42.5 grades of ordinary Portland cements and quartz sand, mix, stirs, packs, obtain indication high performance structure reinforcement mortar constituent of the present invention.
Embodiment 2:
The each component proportion of concrete structure reinforcement polymer mortar following (hot weather construction):
The performance index of concrete structure reinforcement polymer mortar:
The blending process of the high performance structure reinforcement mortar constituent of aforementioned proportion, its concrete steps are: directly each components in certain proportion is weighed, mixes, stirs, packed, and obtain indication high performance structure reinforcement mortar constituent of the present invention.
More than show and describe 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; what describe in above-described embodiment and 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.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. a high performance structure reinforcement mortar constituent, it is characterized in that, with 42.5 grades of ordinary Portland cements, active pozzolans component for gelling material host, adopt thickening to protect water component ﹑ poly carboxylic acid series super plasticizer, short solidifying component carries out modification to it, also be added with mortar tailored version anti-crack fiber, quartz sand, redispersible rubber powder, mortar tailored version admixture, each constituent mass per-cent summation is 100%, and each constituent mass proportioning is:
。
2. the blending process of a preparation high performance structure reinforcement mortar constituent according to claim 1, its concrete steps are as follows: first by active pozzolans component and thickening water-retaining component, short solidifying component, mortar tailored version anti-crack fiber, redispersible rubber powder, poly carboxylic acid series super plasticizer, mortar tailored version admixture carries out premixing mixing in proportion, then by the mixture stirred and 42.5 grades of ordinary Portland cements and quartz sand in proportion Cheng Liang ﹑ Hun He ﹑ Jiao mix Jun Yun ﹑ and pack, obtain described high performance structure reinforcement mortar constituent, or directly each components in certain proportion Cheng Liang ﹑ Hun He ﹑ Jiao is mixed Jun Yun ﹑ and pack, obtain described high performance structure reinforcement mortar constituent.
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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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| 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 CN102295446A (en) | 2011-12-28 |
| CN102295446B true CN102295446B (en) | 2016-03-09 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838334B (en) * | 2012-09-28 | 2014-06-11 | 中铁十九局集团有限公司 | Concrete member mending agent, preparation method and construction method |
| 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 |
Citations (2)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Patent Citations (2)
| 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 |
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Granted publication date: 20160309 Termination date: 20170616 |