CN104193222B - Epoxy resin fiber reinforced concrete for repair and preparation method thereof - Google Patents
Epoxy resin fiber reinforced concrete for repair and preparation method thereof Download PDFInfo
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- CN104193222B CN104193222B CN201410422375.7A CN201410422375A CN104193222B CN 104193222 B CN104193222 B CN 104193222B CN 201410422375 A CN201410422375 A CN 201410422375A CN 104193222 B CN104193222 B CN 104193222B
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Abstract
The invention relates to an epoxy resin fiber reinforced concrete for repair and preparation and application methods thereof. The epoxy resin fiber reinforced concrete is prepared from the following raw materials in percentage by weight: 55-70% of refined quartz sands, 33-17% of epoxy resin, 11-9% of curing agent and 1-4% of basalt fiber chopped strands. The preparation method comprises the following the following steps: by using the refined quartz sands as aggregates and epoxy resin as a gel material, adding the basalt fiber chopped strands; and mixing according to an appointed proportion. The product provided by the invention is extremely high in viscosity, can be well combined with defected concrete of a base layer and is not easy to peel and bulge. The strength can reach the strength grade of concrete C50. The concrete is simple to manufacture, can be prepared on site and needs not to be heated on site. Epoxy resin needs not to be diluted, and the construction steps are saved and the concrete is convenient to use while no diluents are introduced. The product is short in curing time, and comes into use in 24 hours after repair. The concrete is strong in adaptability, can be suitable for repairing defects of thick and thin layers of a terrace at the same time and can be used for repairing various defects of terrace such as pits formed by collision or high-low difference due to differential settlement of the concrete terrace.
Description
Technical field
The present invention relates to a kind of epoxy resin fiber Concrete Structure and preparation method thereof, special standby it be related to one kind and can fit simultaneously
For thick-layer and thin layer defect mending, hardening time is short, viscosity is high new repairing with epoxy resin fiber Concrete Structure and
Its preparation method.
Background technology
At present, typically after concreting completes, carry out mechanical and electric equipment installation in floor construction, this operation is easily
Concrete floor is caused damage, the terrace cracking such as being caused by differential settlement forms difference of height etc., needs using special
Mending concrete is effectively repaired.At present, epoxy resin mending mortar is with its high chemical resistance, high-impact Abrasion properties
And high cavitation resistive property, become a kind of effective mending concrete mortar, but it, in making practical process, there is also one
A little problems：
1st, formula is complicated, and epoxy resin could need to use through dilution, and some formula also need to heating auxiliary mixing, make work
Sequence is many, wastes time and energy；
2nd, poor for applicability：Existing epoxy resin mending mortar applies in general to repair the defect that thickness is more than 5cm, for
Then easily peeling, drum, bonding loosely, easily causes the concrete at terrace defect processing to terrace defect to be repaired less than 5cm
Intensity is not enough, and then affects presentation quality and the service life of molding terrace, and applicable effect is poor；
3rd, hardening time is long：Generally require after the completion of repairing 3～7 days and could normally come into operation, delay other follow-up works
The carrying out of sequence, causes difficulty to the construction of terrace surface layer.
Content of the invention
Present invention aim at providing a kind of repairing to use epoxy resin fiber Concrete Structure and preparation method thereof, solve existing
There are epoxy resin mending mortar formula complexity, epoxy resin could need to use through dilution, some formula also need to heating auxiliary and mix
Close, manufacturing process is many, the problem that wastes time and energy；Also solve existing epoxy resin mending mortar for be repaired less than 5cm
Easy peeling during the defect of level ground, rise drum, bonding loosely, easily cause Concrete intensity insufficient at terrace defect processing, impact molding
The presentation quality of terrace and service life, it is suitable for the poor problem of effect；Additionally, also solving existing repairing technique hardening time
Long, repair after the completion of generally require the carrying out of other subsequent handlings that could normally come into operation, delay 3～7 days, to terrace surface layer
Construction cause difficulty technical problem.
For solving above-mentioned technical problem, the technical solution used in the present invention is：
A kind of repair with epoxy resin fiber Concrete Structure it is characterised in that：Its raw material is purity quartzite, asphalt mixtures modified by epoxy resin
Fat, firming agent, basalt fibre are chopped yarn, and the mass fraction of each component can be；
Purity quartzite 55%～70%,
Epoxy resin 17%～33%,
Firming agent 9%～11%,
Basalt fibre is chopped yarn 1%～4%.
The chopped yarn diameter of described basalt fibre can be 7～25 microns, and length can be 2～6, and tensile strength is permissible
It is 3300～4500MPa.In described purity quartzite, the content of silicon dioxide is not less than 95%.The granularity of described purity quartzite
Scope can be 20～140 mesh.Described epoxy resin is that E51 epoxy resin can be according to 20 with firming agent:5～20:9 weight ratios
Mixed preparing forms.Described firming agent can be synthetic resin firming agent.
A kind of above-mentioned repairing is with the preparation method of epoxy resin fiber Concrete Structure it is characterised in that including following walking
Suddenly：
Step one, material are weighed：Weigh respectively according to setting proportioning；
Step 2, yarn that basalt fibre is chopped add in epoxy resin, mix homogeneously；
In step 3, the mixture that firming agent addition step 2 is obtained, mix homogeneously；
In step 4, the mixture that purity quartzite addition step 3 is obtained, mix homogeneously, so far, complete.
The invention still further relates to above-mentioned repairing with the using method of epoxy resin fiber Concrete Structure it is characterised in that
Comprise the steps：
Confirm before step one, construction：Construction point need to meet concrete base layer floor construction and complete more than 28 days, screed-coat table
In more than 25Mpa, not dusting plays dirt, bumpy repair rate≤5%, and air relatively dry to surface intensity；
Step 2, basal plane cleaning：Check basic unit's basal plane it is ensured that no greasy dirt, hollowing, then done using solvent scouring if any greasy dirt
Only, then toasted using flame, hollowing then carries out grouting and reinforcing process using epoxy resin；
Step 3, concrete surface are processed：Remove attached ash and the laitance layer on surface improves roughness；
Step 4, bumpy repair：After removing the fluff on pit-hole side, brushing epoxy primer it is ensured that no hydrops in hole, so
Afterwards the repairing preparing is used in scraper plate press-in pit-hole to be repaired with epoxy resin fiber Concrete Structure, and floating；
Step 5, the plate discrepancy in elevation and plate warpage are processed：The discrepancy in elevation between detection plate first, discrepancy in elevation amplitude is below 10mm's
Directly carry out fixed point and be polishing to that flatness is up to standard, discrepancy in elevation amplitude then selectes levelling side according to plate trend in the region of more than 10mm
To and along length of grade degree, be greater than 3m to ensure terrace flatness along length of grade degree, the repairing epoxy resin fiber that finally paves strengthens
Concrete uses trowel screeding and compaction.
Compared with prior art, the present invention's it is a technical advantage that：
1st, make simple, can extemporaneous preparation it is not necessary to heating, epoxy resin does not need to dilute, while saving diluent
Save working procedure, easy to use；
2nd, product viscosity is high, can be combined well with Defect Base concrete, is difficult peeling and plays drum, the suitability
By force, thickness can flexibly control, and can be simultaneously suitable for thick-layer defect mending and the thin layer defect mending of terrace, can repair various terraces
Defect such as the difference of height because pounding the hole hitting formation or the formation of concrete floor differential settlement；
3rd, through actually detected, the comprcssive strength of product of the present invention all reaches more than 60MPa, and rupture strength reaches more than 9.9MPa,
Bulk strength can reach C50 strength grade of concrete, the process of energy extensive utilization terrace defect in industrial civil building；
4th, product is short for hardening time, repairs and can come into operation it is ensured that subsequent construction progress within latter 24 hours.
Specific embodiment
A kind of repairing use epoxy resin fiber Concrete Structure, and raw material is purity quartzite, epoxy resin, firming agent, profound
Military rock fiber is chopped yarn, and the mass fraction of each component can be：Purity quartzite 55%～70%, epoxy resin 17%～33%, Gu
Agent 9%～11%, basalt fibre is chopped yarn 1%～4%；Proportioning with reference to 4 embodiments is made into one to present invention
The explanation of step supplements.
Proportioning 1：
Purity quartzite 55%,
Epoxy resin 33%,
Firming agent 9%,
Basalt fibre is chopped yarn 3%；
Proportioning 2：
Purity quartzite 60%,
Epoxy resin 30%,
Firming agent 9%,
Basalt fibre is chopped yarn 1%；
Proportioning 3：
Purity quartzite 65%,
Epoxy resin 17%,
Firming agent 11%,
Basalt fibre is chopped yarn 2%；
Proportioning 4：
Purity quartzite 70%,
Epoxy resin 15%,
Firming agent 11%,
Basalt fibre is chopped yarn 4%；
Wherein, in above-described embodiment proportioning 1～4, the chopped yarn diameter of described basalt fibre can be 7～25 microns, long
Degree can be 2～6, and tensile strength can be 3300～4500MPa.In described purity quartzite, the content of silicon dioxide is not low
In 95%.The particle size range of described purity quartzite can be 20～140 mesh.Described epoxy resin is E51 epoxy resin and solidification
Agent can be according to 20:5～20:9 weight form than mixed preparing.Described firming agent can be synthetic resin firming agent.
Moreover, it relates to a kind of above-mentioned repairing preparation method of epoxy resin fiber Concrete Structure, this
Bright product can situ configuration, need not heat, be first according to set proportioning weigh respectively, then by basalt fibre be chopped yarn add
In epoxy resin, mix homogeneously, sequentially add firming agent and purity quartzite, often add one kind to be stirred mixing all
Even, terrace reparation can be carried out after the completion of configuration.
The invention still further relates to a kind of above-mentioned repairing using method of epoxy resin fiber Concrete Structure, it is mainly used in ground
The bumpy repair on level ground and the plate discrepancy in elevation and plate warpage are processed.Comprise the following steps that：
Confirm before step one, construction：After concrete base layer floor construction completes 28 days（If temperature is low needs proper extension
Curing time）, and screed-coat surface strength needs in more than 25Mpa, not dusting, dirt bumpy repair rate≤5% and air are relatively
It is dried；
Step 2, basal plane cleaning：Check basic unit's basal plane it is ensured that no greasy dirt, hollowing, then done using solvent scouring if any greasy dirt
Only, then toasted using flame；Hollowing then carries out grouting and reinforcing process using epoxy resin；
Step 3, concrete surface are processed：Remove attached ash, remove the laitance layer on surface, improve roughness；Remove by pit-hole
The fluff on side；
Step 4, bumpy repair：Brushing epoxy primer, and ensure no hydrops in hole；Repairing epoxy resin fiber increases
Reinforced concrete is constructed：The repairing preparing epoxy resin fiber Concrete Structure, using scraper plate press-in pit-hole to be repaired
Interior and floating.
Step 5, the plate discrepancy in elevation and plate warpage are processed：The discrepancy in elevation between detection plate, indicates the high spread of each construction area plate
Degree, fixed levelling scheme；Discrepancy in elevation amplitude is polished in the fixed point that directly carries out of below 10mm, until flatness is up to standard；Discrepancy in elevation amplitude exists
Levelling direction is selected and along length of grade degree according to plate trend in the region of more than 10mm, and typically levelling suitable length of grade degree is more than 3m, this
Sample guarantee terrace flatness；Pave repairing epoxy resin fiber Concrete Structure, and uses trowel screeding and compaction.This product
When product use, hardening time is less than 24 hours, does not delay normal use or subsequent construction.
According to GB/T 17671-1999《Test method for strength of hydraulic cement mortar（ISO method）》Examination criteria, using TZA-300
Electric-liquid type anti-folding and anti-pressing testing machine and DKZ-5000 electric bending testing machine, to the concrete product of aforementioned four embodiment
Rupture strength and comprcssive strength are monitored, and the size of monitoring concrete product is 40*40*160mm, and concrete curing method is
Spontaneously dry, as shown in table 1, as can be seen from Figure, comprcssive strength reaches 60MPa to the testing result of rupture strength and comprcssive strength
More than, rupture strength reaches more than 9.9MPa, and bulk strength can reach C50 strength grade of concrete, and energy extensive utilization is to the industrial people
Process with terrace defect in building.
Table 1 rupture strength and the testing result of comprcssive strength
Claims (3)
1. a kind of repair with epoxy resin fiber Concrete Structure it is characterised in that：Its raw material is purity quartzite, asphalt mixtures modified by epoxy resin
Fat, firming agent, basalt fibre are chopped yarn, and the mass fraction of each component is；
Purity quartzite 55%～70%,
Epoxy resin 17%～33%,
Firming agent 9%～11%,
Basalt fibre is chopped yarn 2%～4%；
Described basalt fibre is chopped yarn diameter for 7～25 microns, and length is 2～6, and tensile strength is 3300～4500MPa；
Described epoxy resin is E51 epoxy resin and firming agent according to 20:5～20:9 weight form than mixed preparing；
In described purity quartzite, the content of silicon dioxide is not less than 95%；
The particle size range of described purity quartzite is 20～140 mesh；
Described firming agent is synthetic resin firming agent.
2. a kind of repairing described in claim 1 with the preparation method of epoxy resin fiber Concrete Structure it is characterised in that bag
Include following steps：
Step one, material are weighed：Weigh respectively according to setting proportioning；
Step 2, yarn that basalt fibre is chopped add in epoxy resin, mix homogeneously；
In step 3, the mixture that firming agent addition step 2 is obtained, mix homogeneously；
In step 4, the mixture that purity quartzite addition step 3 is obtained, mix homogeneously, so far, complete.
3. the repairing epoxy resin fiber Concrete Structure described in claim 1 using method it is characterised in that include as
Lower step：
Confirm before step one, construction：Construction point need to meet concrete base layer floor construction and complete more than 28 days, and levelling layer surface is strong
In more than 25Mpa, not dusting plays dirt, bumpy repair rate≤5%, and air relatively dry to degree；
Step 2, basal plane cleaning：Check basic unit's basal plane it is ensured that no greasy dirt, hollowing, then clean using solvent scouring if any greasy dirt,
Then toasted using flame, hollowing then carries out grouting and reinforcing process using epoxy resin；
Step 3, concrete surface are processed：Remove attached ash and the laitance layer on surface improves roughness；
Step 4, bumpy repair：After removing the fluff on pit-hole side, brushing epoxy primer, it is ensured that no hydrops in hole, then will
The repairing preparing epoxy resin fiber Concrete Structure uses in scraper plate press-in pit-hole to be repaired, and floating；
Step 5, the plate discrepancy in elevation and plate warpage are processed：The discrepancy in elevation between detection plate first, discrepancy in elevation amplitude is direct in below 10mm
Carry out fixed point and be polishing to that flatness is up to standard, discrepancy in elevation amplitude the region of more than 10mm then according to plate trend select levelling direction and
Along length of grade degree, it is greater than 3m to ensure terrace flatness along length of grade degree, the repairing epoxy resin fiber that finally paves strengthens coagulation
Soil uses trowel screeding and compaction.
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| CN201410422375.7A CN104193222B (en) | 2014-08-26 | 2014-08-26 | Epoxy resin fiber reinforced concrete for repair and preparation method thereof |
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| CN201410422375.7A CN104193222B (en) | 2014-08-26 | 2014-08-26 | Epoxy resin fiber reinforced concrete for repair and preparation method thereof |
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| CN104193222B true CN104193222B (en) | 2017-02-15 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104894975B (en) * | 2015-04-29 | 2017-01-11 | 广东冠生土木工程技术有限公司 | Roughening method of concrete |
| CN107572884A (en) * | 2017-08-21 | 2018-01-12 | 福建省正丰数控科技有限公司 | A kind of bed piece cast using waste ceramic |
| CN107459287A (en) * | 2017-08-21 | 2017-12-12 | 福建省正丰数控科技有限公司 | A kind of bed piece cast using scrap glass |
| CN107459286A (en) * | 2017-08-21 | 2017-12-12 | 福建省正丰数控科技有限公司 | A kind of bed piece cast using waste ceramic and scrap glass |
| CN107382141A (en) * | 2017-08-21 | 2017-11-24 | 福建省正丰数控科技有限公司 | A kind of method that bed piece is cast using scrap glass |
| CN107445514A (en) * | 2017-08-21 | 2017-12-08 | 福建省正丰数控科技有限公司 | A kind of high-precision machine tool lathe bed cast using ceramic bead |
| CN108571180A (en) * | 2018-05-15 | 2018-09-25 | 武汉科技大学 | A kind of beams of concrete column reinforcing method |
| CN109678419A (en) * | 2018-12-27 | 2019-04-26 | 江西省机场集团公司宜春机场分公司 | A kind of concrete road surface patching material and its preparation method and application |
| CN109851299A (en) * | 2019-03-18 | 2019-06-07 | 北京国旺混凝土有限公司 | A kind of impervious high-strength concrete and preparation method thereof |
| CN113117998A (en) * | 2021-04-14 | 2021-07-16 | 重庆嘉瑞智建科技有限公司 | Anti-corrosion construction method based on basalt fibers |
| CN116102291B (en) * | 2023-02-08 | 2023-10-24 | 苏州市相城检测股份有限公司 | Asphalt pavement pit repairing material, and preparation method and application thereof |
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| DE10226613B4 (en) * | 2002-06-14 | 2007-05-16 | Hilti Ag | Hardener component for an at least two-component mortar composition and process for their preparation |
| CN1325424C (en) * | 2005-01-11 | 2007-07-11 | 桂永全 | Rapid repairing materials for ultrathin layer on the surface of road and airfield runway |
| CN101186468A (en) * | 2007-12-27 | 2008-05-28 | 王军 | Epoxy modified unsaturated resin concrete for road and bridge |
| CN101265052A (en) * | 2008-04-22 | 2008-09-17 | 上海阳森精细化工有限公司 | Fibre reinforcement resin mortar terrace material and preparation method thereof |
| CN101704653B (en) * | 2009-11-19 | 2012-06-06 | 亢吉田 | Resin cement for levelling cement concrete road surface |
| CN102219437B (en) * | 2011-05-11 | 2012-12-05 | 邓敬森 | Cement concrete material for rapid repairing of road and preparation method thereof |
| CN103508713A (en) * | 2013-09-03 | 2014-01-15 | 北京交通大学 | Basalt fiber-reinforced active powder concrete and preparation method thereof |
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