CN101457581A - Construction method for auto-flowing floor - Google Patents
Construction method for auto-flowing floor Download PDFInfo
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- CN101457581A CN101457581A CNA2008102077572A CN200810207757A CN101457581A CN 101457581 A CN101457581 A CN 101457581A CN A2008102077572 A CNA2008102077572 A CN A2008102077572A CN 200810207757 A CN200810207757 A CN 200810207757A CN 101457581 A CN101457581 A CN 101457581A
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- cement
- based self
- leveling
- mortar
- leveling mortar
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Abstract
The invention discloses a construction method for a self-leveling floor, comprising the following steps in sequence: A) the interface agent is painted on the base course of an inorganic floor at least once; B) the cement based self-leveling mortar, which flows uniformly and is not segregative, with initial mobility and 20min mobility more than 130mm, is evenly poured on the base course for self-leveling; C) the surface of the cement based self-leveling mortar is hackled at least once; and D) the final curing is carried out on the cement based self leveling mortar floor, wherein, in step B),a mortar mixing pumping machine is adopted to pour the cement based self-leveling mortar uniformly on the base course. The method can be used for large-area construction, furthermore, the construction speed is fast; the self-leveling floor is characterized by (1) excellent abrasion resistance and mechanical strength, (2) capabilities of enhancing the compactness and hardness of the base course and reduced hollowing rate, (3) low degree of shrinkage and no crack, (4) stronger adhesion to the floor base course, (5) stable quality and (6) smooth and flat surface.
Description
Technical field
The invention belongs to building field, relate in particular to a kind of job practices of auto-flowing floor.
Background technology
Cement floor (comprising cement mortar surface and pea gravel concreten ground) is to use more a kind of traditional ground in China's building floor, and it is with surface-brightening, durable in use, wear-resisting and celebrated.But because its construction technology is based on manual operations, it is bigger that its quality is influenced by human factor, and the common quality defect that air spots, hollowing, crack, dusting etc. are difficult to overcome has been covered the superiority of itself, has limited its a large amount of uses.In recent years, have in the ground of wear-resisting requirement, add hardened material at concrete surface, use troweling machinery troweling to make wear-resisting cement floor, make the quality of cement floor obtain certain improvement in some industrial premises, garage and supermarket etc.But because its composition material do not have radical change, construction technology still with manual operations, people for being controlled to be the master, speed of application is slow, and its common quality defect is not thoroughly eradicated yet.
At present, the ground in garage or parking lot roughly has following three kinds at home: 1. most of is the placing and troweling concrete surface; 2. the employing that has is added hardened material at concrete surface, the abrasion-proof concrete ground that mechanical troweling is made; What 3. also have does the epoxy self-leveling abrasion-resistant ground on concrete base layer.In these three kinds of ground, first kind is the traditional method of China, and crack, peeling, dusting all occur, that have even quite serious, to use after repeatedly repair, the crack still is difficult to eliminate, the surface is rough and uneven in surface, shade differs, and is neither attractive in appearance because frequent repairing causes, and influence is used again.Second and third kind ground is the new approach that occurs recent years, and peeling, dusting phenomenon make moderate progress, and any surface finish, planeness, anti-wear performance also improve to some extent, but crack phenomenon still can not be eliminated.Epoxy self-leveling abrasion-resistant ground any surface finish is wear-resisting, the planeness of concrete base layer but its planeness places one's entire reliance upon, gas permeability is poor, to basic unit's water content requirement height, hollowing, skin effect phenomenon with great difficulty do not appear as control, and the surface is prone to cut, and anti-skidding, fire prevention, anti-wear performance all do not reach the engineering design requirement.
The cement-based self-leveling earth material is a kind of new terrestrial material of introducing from Europe, the production of founding the factory at home at present.Be applicable to the maintenance and renovation of newly-built ground surface works or ground surface works.Ground after finishing except that the surface smooth especially smooth, overcome traditional cement floor surface irregularity, easy common quality defects such as hollowing, crack, dusting fully.Its advantage is: its dry powder material, steady quality, and add water and stir and can use, have high strength, low contraction, high abrasion, hypotonicity and good adhesion stress (cooperation interfacial agents), do not burn, environmentally safe when nonhazardous, construction; Artificial auxiliary, Automatic Levelling, smooth surface is smooth, and thin thickness, materials are economized, and alleviate floor load; Time of setting is short, need not special curing etc.But this cement-based self-leveling earth material still adopts artificial casting and constructing, and for big construction areas such as factory building, garage, supermarkets, speed of application is slower, and efficient is low.
Summary of the invention
Slow in order to solve gravity flowing levelling mortar of the prior art construction, inefficient technical problem the invention provides a kind of job practices of new auto-flowing floor, and it in turn includes the following steps:
A) brushing is at least one all over interfacial agents in inorganic terrace basic unit;
B) will trickle evenly, not emanate, initial flow degree and 20min degree of mobilization all be cast in the basic unit equably greater than the cement-based self-leveling mortar of 130mm, makes it from levelling;
C) to cement-based self-leveling mortar surface combing at least one time;
D) the finished product maintenance is carried out on cement-based self-leveling mortar ground;
Wherein, in step B, adopt mortar stirring pumping machine that cement-based self-leveling mortar is cast in the basic unit equably.
Steps A) in, described inorganic terrace basic unit is a concrete base layer, and planeness reaches ± 3mm/2m, and adhesive strength is greater than 1.5N/mm
2Described interfacial agents is the interfacial agents after diluting with 3～5 times of water.In basic unit, brush interfacial agents 2～3 times, and the interfacial agents concentration of the 1st time brushing is lower than the 2nd and spreads all over later concentration, and is every dry more than 1 hour all over interfacial agents, preferred dry 2～3 hours, the time of brushing every time interfacial agents was separated by more than 10 hours, preferably was separated by 12 hours.
The consumption of interfacial agents MD16 (manufacturer is Maxit) is distinguished to some extent according to the difference of basic unit, and the closely knit then consumption of basic unit is less, otherwise then big, numerical value rule of thumb, and every square meter consumption is 0.2 liter.Brushing interfacial agents purpose: the one, to basic unit sealing, avoid the too much too fast suction of basic unit, prevent that cement-based self-leveling mortar from losing moisture content too early; The 2nd, the adhesion strength of enhancing basic unit and cement-based self-leveling mortar layer; The 3rd, prevent the generation of bubble; The 4th, improve the flowability of cement-based self-leveling mortar.
Step B) pressure of mortar stirring pumping machine remains on 3～6bar in.To be cement-based self-leveling dry powder and mortar and water according to the weight ratio of 1:0.2 stir cement-based self-leveling mortar forms.The cement-based self-leveling mortar that is cast in the basic unit is 5～10mm with auxiliary levelling to the thickness of scraper plate, preferred 6mm.
Step C) in, after cement-based self-leveling mortar flows out the 500mm wide region voluntarily, with scraper plate to cement-based self-leveling mortar surface combing first pass, so that derive the bubble of cement-based self-leveling mortar inside, and to its auxiliary levelling, but by the light and slow compactness of smearing pressure combing cement-based self-leveling mortar surface; After cement-based self-leveling mortar flows out the 1000mm wide region voluntarily, with band discaling roll tube to cement-based self-leveling mortar surface combing second time, with the effect of the compactness of further raising cement-based self-leveling mortar.
Step D) in, finished product maintenance 7 days.
The job practices of auto-flowing floor of the present invention can be constructed in large area, and speed of application is fast, efficient height, simple to operate; The cement-based self-leveling ground of making has: 1) splendid anti-wear performance and mechanical strength, 2) can improve the compactness and the hardness of basic unit, reduce the hollowing rate, 3) low degree of shrinkage, do not ftracture, 4) ground layer is had stronger adhesive power, 5) steady quality, 6) smooth surface is smooth.
The specific embodiment
The cement-based self-leveling mortar that the present invention uses is the cement-based self-leveling mortar floor415 of Maxit producer, method and the performance that requires to detect cement-based self-leveling mortar according to building material industry standard JC/T985-2005 " ground cement-based self-leveling mortar " regulation the results are shown in Table shown in 1.
The performance technologies index of table 1 cement-based self-leveling mortar
The concrete base layer removing surface of construction operation section is clean, mechanical grinding, dust suction, and hollowing, the crack of substrate surface repaired, concrete dusting inorganic agent brushing 2～3 times of the indivedual dustings of substrate surface position, position levelling to the planeness that is uneven individually reaches ± 3mm/2m, detects ground anti-pulling intensity with the pull strength somascope, and anti-pulling intensity reaches 1.5N/mm
2The position qualified, anti-pulling intensity weak part not up to standard is repaired, and makes it up to standard.
The agent of brushing first pass interfacial agents: MD16 gravity flow planar interface is diluted with 5 times of water, uses the palm brush of fabric width as 600mm, and diluted interfacial agents evenly is brushed in the basic unit that cleans out, and it is fully penetrated in the concrete base layer, and is dry after about 2 hours.
Brush second time interfacial agents: after the brushing of first pass interfacial agents about 12 hours, the agent of MD16 gravity flow planar interface dilute with 3 times of water, evenly brushes (roller coat evenly gets final product) to basic unit, must not omit and form local hydrops, drying after about 3 hours.
The construction operation section is provided with boundary's lattice and shutoff border.
Operation instruction according to the cement-based self-leveling dry powder and mortar, every 25kg dry powder and mortar is joined 5kg water, mortar stirring pumping machine (DUOMIX2000, Germany) regulate the hydration ratio automatically by computer control, pressure should keep 3～6bar, in order to ensure the hydration of cement-based self-leveling mortar between casting cycle than uniform and stable, test the degree of mobilization of cement-based self-leveling mortar before the cast with mortar degree of mobilization test board (Maxit), do not reach degree of mobilization index in the table 1 as degree of mobilization, in allowed band, do suitably to adjust with 1kg dry powder and mortar amount of water again, detect degree of mobilization again, till meeting the requirements, and the mortar trickling evenly, do not emanate.The pump line mouth of mortar stirring pumping machine keeps the height of about 15cm from the construction operation face, along the construction operation face from left to right, from inside outwards level slowly evenly moves, and the mortar slurry that evenly paves, and assist levelling to the thickness 6mm with the steel scraper plate.
After cement-based self-leveling mortar flows out about 500mm wide region, smear pressure with stock profile of tooth steel scraper plate on the cement-based self-leveling mortar surface light and slowly, derive the mortar air entrapment, and auxiliary levelling, play first pass combing mortar surface, improve the effect of compactness.
After cement-based self-leveling mortar flows out about 1000mm wide region, smear pressure with stock band discaling roll tube on the cement-based self-leveling mortar surface light and slowly, play combing mortar surface second time, the effect that further improves the cement-based self-leveling mortar compactness.Every mortar stirring pumping machine per hour can be finished 200 square metres construction operation face.
After construction was finished, sealing is on-the-spot carried out the finished product maintenance to cement-based self-leveling ground, can open walking after 2 days, can use after 7 days.After treating that the cement-based self-leveling ground construction is finished 7 days, can carry out joint-cutting, filleting by designing requirement on the ground.
1) according to method and the requirement of " building floor engineering construction quality standards of acceptance " GB50209-2002, on the basis that the concrete base layer ground flat degree satisfies substantially, checks the planeness on cement-based self-leveling ground with 2m guiding ruler and wedge shape clearance gauge.
2) phenomenon such as the size changing rate of routine observation cement-based self-leveling floor surface (negative (contractions) of the datum length after the standard specimen maintenance during or just (expansions) change) with respect to the firm demoulding of test specimen, and method inspection hollowing, seminess are knocked in application.
The quality index on cement-based self-leveling of the present invention ground sees Table 2.
The quality index on table 2 cement-based self-leveling of the present invention ground
Claims (10)
1. the job practices of an auto-flowing floor is characterized in that in turn including the following steps:
A) brushing is at least one all over interfacial agents in inorganic terrace basic unit;
B) will trickle evenly, not emanate, initial flow degree and 20min degree of mobilization all be cast in the basic unit equably greater than the cement-based self-leveling mortar of 130mm, makes it from levelling;
C) to cement-based self-leveling mortar surface combing at least one time;
D) the finished product maintenance is carried out on cement-based self-leveling mortar ground;
Wherein, in step B, adopt mortar stirring pumping machine that cement-based self-leveling mortar is cast in the basic unit equably.
2. job practices as claimed in claim 1 is characterized in that: steps A), described inorganic terrace basic unit is a concrete base layer, and planeness reaches ± 3mm/2m, and adhesive strength is greater than 1.5N/mm
2
3. job practices as claimed in claim 1 is characterized in that: steps A), described interfacial agents is the interfacial agents after diluting with 3～5 times of water.
4. job practices as claimed in claim 3 is characterized in that: steps A), brush interfacial agents 2～3 times in basic unit, every dry more than 1 hour all over interfacial agents, the time of brushing every time interfacial agents was separated by more than 10 hours.
5. job practices as claimed in claim 1 is characterized in that: the pressure of mortar stirring pumping machine remains on 3～6bar step B).
6. job practices as claimed in claim 1 is characterized in that: to be cement-based self-leveling dry powder and mortar and water according to the weight ratio of 1:0.2 stir the cement-based self-leveling mortar step B) forms.
7. job practices as claimed in claim 1 is characterized in that: step B), the cement-based self-leveling mortar that is cast in the basic unit is 5～10mm with auxiliary levelling to the thickness of scraper plate, preferred 6mm.
8. job practices as claimed in claim 1 is characterized in that: step C), after cement-based self-leveling mortar flows out the 500mm wide region voluntarily, with scraper plate to cement-based self-leveling mortar surface combing first pass.
9. job practices as claimed in claim 8 is characterized in that: step C), after cement-based self-leveling mortar flows out the 1000mm wide region voluntarily, with being with the discaling roll tube to cement-based self-leveling mortar surface combing second time.
10. job practices as claimed in claim 1 is characterized in that: step D), and finished product maintenance 7 days.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008102077572A CN101457581A (en) | 2008-12-25 | 2008-12-25 | Construction method for auto-flowing floor |
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| CNA2008102077572A CN101457581A (en) | 2008-12-25 | 2008-12-25 | Construction method for auto-flowing floor |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358693A (en) * | 2011-08-22 | 2012-02-22 | 天津市贝乐建筑材料有限公司 | Levelling mortar and ground construction process based on the same |
| CN102535296A (en) * | 2010-12-17 | 2012-07-04 | 中国建筑第七工程局有限公司 | Construction method of superheavy-load reinforcement-free large-area seamless epoxy self-leveling terrace |
| CN106116326A (en) * | 2016-06-17 | 2016-11-16 | 南京徽腾环保科技有限公司 | A kind of Self-leveling dry powder and mortar and preparation method, utilize terrace and construction method thereof prepared by this dry powder and mortar |
| CN106592925A (en) * | 2016-12-06 | 2017-04-26 | 长沙万工机器人科技有限公司 | High-hardness cement-based self-leveling artistic ground construction process |
| CN106884535A (en) * | 2017-01-20 | 2017-06-23 | 南通苏宝建筑节能科技有限公司 | A kind of construction technology of imitative stone material Self-leveling waterproof mortar |
| CN107035103A (en) * | 2017-06-20 | 2017-08-11 | 中国华西企业有限公司 | A kind of cement floor construction method |
| CN109372223A (en) * | 2018-09-24 | 2019-02-22 | 河北展环科技有限公司 | The construction method of the mating thick-slurry type cement-based self-leveling terrace of assembled architecture |
| CN109465955A (en) * | 2017-09-08 | 2019-03-15 | 润弘精密工程事业股份有限公司 | Form the method with the grate for exempting from powder light concrete surface |
| CN110130615A (en) * | 2019-04-28 | 2019-08-16 | 贵州磷镁材料有限公司 | Indoor combined floor and its construction method based on phosphorus magnesium material and Self-leveling gypsum |
| CN110862250A (en) * | 2019-11-21 | 2020-03-06 | 武汉路城建设科技有限公司 | High-viscosity non-shrinkage cement-based frosted floor material and paving process thereof |
| CN111411756A (en) * | 2020-04-13 | 2020-07-14 | 张晟 | Construction process of inorganic self-leveling heat-preservation sound-insulation terrace |
| CN112009573A (en) * | 2020-08-28 | 2020-12-01 | 东风商用车有限公司 | Method for leveling inner decorative bottom plate of cab |
| US10864654B2 (en) | 2017-09-08 | 2020-12-15 | Ruentex Engineering & Construction Co., Ltd. | Method of forming a waffle slab with concrete surfaces that do not require polishing |
-
2008
- 2008-12-25 CN CNA2008102077572A patent/CN101457581A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535296A (en) * | 2010-12-17 | 2012-07-04 | 中国建筑第七工程局有限公司 | Construction method of superheavy-load reinforcement-free large-area seamless epoxy self-leveling terrace |
| CN102535296B (en) * | 2010-12-17 | 2014-09-10 | 中国建筑第七工程局有限公司 | Construction method of superheavy-load reinforcement-free large-area seamless epoxy self-leveling terrace |
| CN102358693A (en) * | 2011-08-22 | 2012-02-22 | 天津市贝乐建筑材料有限公司 | Levelling mortar and ground construction process based on the same |
| CN102358693B (en) * | 2011-08-22 | 2013-03-27 | 天津市贝乐建筑材料有限公司 | Levelling mortar and ground construction process based on the same |
| CN106116326B (en) * | 2016-06-17 | 2018-08-14 | 南京徽腾环保科技有限公司 | A kind of Self-leveling dry powder and mortar and preparation method, the terrace for utilizing the dry powder and mortar to prepare and its construction method |
| CN106116326A (en) * | 2016-06-17 | 2016-11-16 | 南京徽腾环保科技有限公司 | A kind of Self-leveling dry powder and mortar and preparation method, utilize terrace and construction method thereof prepared by this dry powder and mortar |
| CN106592925A (en) * | 2016-12-06 | 2017-04-26 | 长沙万工机器人科技有限公司 | High-hardness cement-based self-leveling artistic ground construction process |
| CN106884535A (en) * | 2017-01-20 | 2017-06-23 | 南通苏宝建筑节能科技有限公司 | A kind of construction technology of imitative stone material Self-leveling waterproof mortar |
| CN107035103A (en) * | 2017-06-20 | 2017-08-11 | 中国华西企业有限公司 | A kind of cement floor construction method |
| CN109465955A (en) * | 2017-09-08 | 2019-03-15 | 润弘精密工程事业股份有限公司 | Form the method with the grate for exempting from powder light concrete surface |
| US10864654B2 (en) | 2017-09-08 | 2020-12-15 | Ruentex Engineering & Construction Co., Ltd. | Method of forming a waffle slab with concrete surfaces that do not require polishing |
| CN109372223A (en) * | 2018-09-24 | 2019-02-22 | 河北展环科技有限公司 | The construction method of the mating thick-slurry type cement-based self-leveling terrace of assembled architecture |
| CN110130615A (en) * | 2019-04-28 | 2019-08-16 | 贵州磷镁材料有限公司 | Indoor combined floor and its construction method based on phosphorus magnesium material and Self-leveling gypsum |
| CN110862250A (en) * | 2019-11-21 | 2020-03-06 | 武汉路城建设科技有限公司 | High-viscosity non-shrinkage cement-based frosted floor material and paving process thereof |
| CN111411756A (en) * | 2020-04-13 | 2020-07-14 | 张晟 | Construction process of inorganic self-leveling heat-preservation sound-insulation terrace |
| CN112009573A (en) * | 2020-08-28 | 2020-12-01 | 东风商用车有限公司 | Method for leveling inner decorative bottom plate of cab |
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Open date: 20090617 |