CN101343854A - Construction method of colorful water-permeable concrete terrace surface - Google Patents
Construction method of colorful water-permeable concrete terrace surface Download PDFInfo
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- CN101343854A CN101343854A CNA2008101474033A CN200810147403A CN101343854A CN 101343854 A CN101343854 A CN 101343854A CN A2008101474033 A CNA2008101474033 A CN A2008101474033A CN 200810147403 A CN200810147403 A CN 200810147403A CN 101343854 A CN101343854 A CN 101343854A
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Abstract
The invention discloses a construction method for a color permeable concrete terrace surface. The invention is characterized in that after the base permeable concrete spreading, the surface coloring material is adopted to perform the surface covering, so as to replace the procedure of surface layer permeable concrete spreading, and the surface covering method comprises the steps: firstly, the permeable concrete surface is pre-treated; secondly, the surface coloring material is mixed strictly according to the mixture ratio; thirdly, the spraying or roll brushing method is adopted to re-color the permeable concrete surface; and fourthly, after the curing to the covered and colored permeable concrete surface is finished, and after the permeable concrete surface layer is fully dried, the sealing treatment is performed. The invention has the advantages that the surface color of the color permeable concrete surface is even and accordant, the water permeability effect of the original ground surface is maintained, the abrasive resistance is stronger, and the large scale mechanized production is realizable, the raw material is saved, and the cost can be effectively reduced.
Description
Technical field
The present invention relates to construction engineering technical field, is a kind of job practices of colorful water-permeable concrete terrace surface specifically.
Background technology
Colorful water-permeable art terrace system is a kind ofly can effectively replenish underground water, the outstanding solution of mating formation of alleviating urban heat island effect.It has the very strong Practical Performance and the higher value of environmental protection, is beneficial to the benign development of environment for human survival, and has special significance in work such as storm water management and water contamination preventing.Permeable concrete is the special concrete of high strength low water-cement ratio dry that is formed by cementitious materials cement and aggregate rubble and special additive, additive mix.Because of no fines, have than macrovoid after the moulding and had good penetration, with its do the square, the road surface has good function of use.
The construction process of this colorful water-permeable concrete and drawback thereof:
1., the paving of basic permeable concrete, consider the high-bearing of permeable concrete and the cost that reasonably saves material, the paving to use of basic permeable concrete is absolutely necessary.Permeable basestocks is paved into mould satisfying on the basis of design elevation, vibrating behind the cloth makes it closely knit.
2., the stirring of the permeable concrete of on-the-spot surface layer, add pigment, permeable concrete is the dry concrete, wherein the volume of water/binder ratio, aggregate size, particularly Admixture and colorant has all influenced its commercial use.And precision that on-the-spot artificial stirring and artificial material loading have influenced the every raw material consumption of permeable concrete greatly and on-the-spot speed of application have increased the labour simultaneously.
3., the transportation of the short-term of permeable concrete, be subjected to artificial influence of stirring, the permeable concrete side amount that stirs out is less, transport with small-sized Transport Machinery, so the continuity of its generation speed and on-the-spot cloth can't effectively be ensured.
4., for being paved, the permeable concrete of surface color to well combine and reach the artistic effect of its requirement with the basic concrete after the end that paves, so want the artificial interval basic, that the permeable concrete material of surface layer paves the time of well grasping, in the process that paves, use special-purpose laying equipment and instrument that the surface layer concrete is carried out cloth, strickling, surface layer receipts light, thereby make its surfacing better show the surface layer texture of permeable terrace.
Therefore changeable color and the exquisite pattern of colorful water-permeable concrete terrace fully showed the perfect adaptation of its artistry and the feature of environmental protection, make in its permeable at home terrace application more and more widely.Along with colorful water-permeable concrete in major works continuous application and expose some problems:
1, cost is too high.
For common permeable concrete being become still satisfy original intensity behind the colorful water-permeable concrete and long term exposure color in external environment can be good at being kept, colorful water-permeable concrete is in the process that paves, in concrete, to add the corresponding pigments composition and make it painted and reach design, use that the entire body of selection of pigment and the permeable concrete of surface layer is made into for the too high inevitable factor of the colorful water-permeable concrete cost of raw material in colorful water-permeable concrete finally to the requirement of color.
2, aberration appears in surface layer
Colorful water-permeable concrete is because of being constructed and curing condition influences the aberration that forms: though one is that mechanical agitation is artificial material loading in the manufacturing process at the scene, the water/binder ratio of colorful water-permeable concrete is failed controlled accurately, water/binder ratio is again the key factor that influences colorful water-permeable concrete surface layer color, thereby causes the colorful water-permeable concrete terrace surface layer aberration to occur; It two must carry out the overlay film maintenance for the intensity that guarantees permeable concrete paves at it after finishing, and time that water-permeable concrete terrace was capped in the overlay film maintenance processes and seal degree are difficult to reach in full accord, also can cause the colorful water-permeable concrete terrace surface layer aberration to occur.
3, to the restriction of mass mechanized production
Stir merchant's concrete because of former technological requirement is on-the-spot, thereby but urban construction at present requires the concrete supplied goodsization to limit the amount of on-the-spot stirring and on-the-spot stirring concrete, do not catch up with extensive speed of application, therefore can't construct on a large scale.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can give permeable concrete surface colour and can effectively solve the colorful water-permeable concrete surface chromatic aberration, can carry out mass mechanized production, save raw material, the job practices of the colorful water-permeable concrete terrace surface that effectively reduces cost.
Further purpose is the surface abrasion resistance ability that can strengthen colorful water-permeable concrete.
The present invention realizes by following technical proposals:
A kind of job practices of colorful water-permeable concrete terrace surface is characterized in that, after the permeable concrete in basis paved, it is painted and replace the permeable concrete of surface layer this operation that paves that the method for utilizing the surface colour material to carry out surface coverage is carried out colour.
The surface colour material comprises blender, water and cement based coloured material, and the cement based coloured material comprises inorganic pigment, Cornstarch, cement, water reducing agent.
The method of this surface coverage comprises the following steps:
1) the permeable concrete of preliminary treatment surface
The clean surface, pollutant and foreign material such as no dust, greasy dirt, the more stone that comes off are rectified and improved as having the surface irregularity that caused by construction, crack, quality problems such as waterproof, and permeable concrete surface, pretreated basis must be without sealing;
2) carry out the permeable terrace surface in basis evenly wetting;
3) strictness of surface colour material is allocated by match ratio: blender and coloured material will stir by proportioning accurately, after wanting during stirring earlier blender and water stirred, again coloured material is poured in the blender solution, stirred while feeding in raw material until evenly;
4) painted to the permeable concrete surface coverage in basis.
Or the surface colour material comprises resinae coloured material and blender, and wherein blender mainly is to be made of the resinae cementing agent with fine cementitiousness, weatherability and anti-uv-ray,
Coloured material comprises: organic pigment, inorganic pigment, colorable coating or dyestuff,
The method of this surface coverage comprises the following steps:
1) the permeable concrete of preliminary treatment surface
The clean surface, pollutant and foreign material such as no dust, greasy dirt, the more stone that comes off are rectified and improved as having the surface irregularity that caused by construction, crack, quality problems such as waterproof, and permeable concrete surface, pretreated basis must be without sealing;
2) strictness of surface colour material is allocated by match ratio: blender and coloured material will stir by proportioning accurately, want during stirring earlier the resinae blender to be poured in the bucket, again coloured material is poured in the blender solution, stirred while feeding in raw material until evenly;
3) painted to the permeable concrete surface coverage in basis.
Described spreadability method of colouring comprises spraying, and its step is
When a) in bucket, leaving standstill, bucket should be carried out encapsulation process as the surface colour material that stirs;
B) the surface colour material is poured into when the beach rifle sprays at every turn and is stirred earlier;
C) carry out painted to permeable concrete surface, basis and guarantee that the surface colour material emulsion adheres to evenly, does not exist the holiday phenomenon;
D) spraying of surface colour material finishes, and treats the water seasoning of the laggard capable discontinuity of its bone dry, and curing time reaches three days at least.
Described covering method of colouring is a round brush, and its step is
A) the surface colour material that stirs leaves standstill in bucket, and bucket is carried out encapsulation process;
B) the surface colour material is poured into when the beach rifle sprays at every turn and is stirred earlier;
C) carry out painted to permeable concrete surface, basis on a small quantity repeatedly and guarantee that the surface colour material emulsion adheres to evenly, do not have the holiday phenomenon, during round brush, the surface colour material emulsion that cylinder and hairbrush are stained with is too much unsuitable, stop up permeable hole when avoiding round brush;
D) spraying of surface colour material finishes, and treats the water seasoning of the laggard capable discontinuity of its bone dry, and curing time reaches three days at least.
Treat to carry out encapsulation process behind the permeable concrete surface layer bone dry after maintenance finishes through the colorful water-permeable concrete ground that covers after painted.
Safeguard measure to taking between surrounding building and when spraying different colours to avoid to pollute when the surface colour material sprays.
Illustrate: cement is white cement in aforementioned, the mass ratio of described composition:
Blender 1: water 3～5: coloured material 8, wherein blender comprise 801 glue, be commonly called as 108 glue formaldehyde polyvinyl acetal, be that modified cement is with building glue, coloured material comprises inorganic pigment, Cornstarch, white cement, water reducing agent, inorganic pigment is made of red inorganic pigment and Yellow organic dye, and the mass percent of coloured material is: red inorganic pigment 0.05: Yellow organic dye 0.396: Cornstarch 2.45: white cement 44: water reducing agent 0.352.
Aforementioned cement is ash concrete, the mass ratio of described composition:
Blender 1: water 3～5: coloured material 8, wherein blender comprise 801 glue, be commonly called as 108 glue formaldehyde polyvinyl acetal, be that modified cement is with building glue, coloured material comprises inorganic pigment, Cornstarch, ash concrete, water reducing agent, inorganic pigment is made of red inorganic pigment, black inorganic pigment and blue inorganic pigment, and the mass percent of coloured material is: red inorganic pigment 2.495: black inorganic pigment 0.22: blue inorganic pigment 0.101: ash concrete 44: water reducing agent 0.352.
The present invention has the following advantages:
Based on the construction technology analysis of former permeable concrete, manually-operated composition is more to make the making of water-permeable concrete terrace have more destabilizing factor, and speed of application was very restricted when it was used in major works, and quality is difficult to obtain guarantee really up to the mark.Therefore job practices of the present invention is promptly after the permeable concrete in basis paves, it is painted and replace the permeable concrete of surface layer this operation that paves that the method for utilizing the surface colour material to carry out surface coverage is carried out colour, particularly utilize the method for spraying and round brush to restain for permeable concrete surface, a series of problems that colorful water-permeable concrete surface chromatic aberration and great number cost are brought had both been solved, the minimizing that the use of this scheme simultaneously is also a large amount of manually-operated content during former permeable concrete construction, as relevant stirring of metering, the pan feeding of coloured material and transportation etc.Can carry out the supply of permeable concrete basis and capstock by the channel of commodity in use concrete.The multinomial content of the artificial material loading when having solved execute-in-place, stirring, transportation, the speed when effectively raising the construction of permeable concrete and the quality of pervious surface.Be more suitable in large-scale mechanization production.
Its technology is fully satisfied:
1. the colorful water-permeable concrete surface color uniformity after being colored;
2. the permeable effect that keeps original ground;
3. has stronger abrasive resistance;
4. after the construction of surface coverage coloured material, be subjected to the ultraviolet ray irradiation can keep original color not fade for a long time.
5. saved raw-material cost.
6. reduced the partial content of artificial material loading, former permeable concrete is more suitable in mechanization production.
Particularly the present invention is because in when spraying, water-permeable concrete terrace surface is carried out evenly wetting, thereby can make permeable concrete surface not have the significantly local situation of doing partially or wet partially; When the surface colour material blender that stirs is left standstill, simultaneously bucket is carried out encapsulation process in bucket, thereby can avoid retrogradation influence continuation use under its situation that is placed on illumination for a long time; The surface colour material is poured into when the beach rifle sprays at every turn and is stirred earlier, can avoid blender aberration to occur because of precipitation makes spraying process; Guarantee that when spraying the air pump operation is normal, have enough air pressure to guarantee more abundant, the even thinner permeable concrete of the original color surface that is scattered in of the surface colour material blender that is sprayed, the surface layer after the spraying does not have to leak and sprays and surface colour material blender does not have the situation of alluvial in flakes like this.
Under the situation of wanting painted permeable concrete ground width to allow, can spray in its both sides; If under the unallowed situation of its condition, after this link that fills spray after can treating surface colour material bone dry after disposable spray finishing covers finishes, former permeable concrete is promptly covered by the surface colour material color, and permeable concrete surface is the color that the surface colour material is shown.
Owing to treat to carry out encapsulation process behind the permeable concrete surface layer bone dry after maintenance finishes through the colorful water-permeable concrete ground that covers after painted, the colorful water-permeable concrete surface reaction after sealing like this goes out the gloss of sealant, has more strengthened the surface abrasion resistance ability of colorful water-permeable concrete.
The specific embodiment
Job practices to colorful water-permeable concrete terrace surface of the present invention is further described below:
After the permeable concrete in basis paved, it is painted and replace the permeable concrete of surface layer this operation that paves that the method for utilizing the surface colour material to carry out surface coverage is carried out colour.
Comprise blender, water and cement based coloured material with the surface colour material, the cement based coloured material comprises that inorganic pigment, Cornstarch, cement, water reducing agent are described for embodiment:
One, preliminary treatment is carried out on permeable concrete surface
1) the permeable concrete of preliminary treatment surface will be cleaned, pollutant and foreign material such as no dust, greasy dirt, the more stone that comes off.
2) former permeable concrete ground does not have the requirement of repairing: need rectify and improve as having the surface irregularity that caused by construction, crack, quality problems such as waterproof
3) pretreated permeable concrete surface must be without sealing, to guarantee surface colour material and its good combination.
Two, colorful water-permeable concrete terrace surface coloured material operation requirement is that example describes with the method that sprays
Wanting strict when 1) the surface colour material uses allocates by match ratio.
Blender 1: material stirs by mass ratio, after earlier blender and water being stirred during stirring, coloured material is poured in the blender solution again, is stirred to while feed in raw material to carry out the surface after even and spray.Wherein the composition of coloured material mainly is: inorganic pigment (mainly being yellow, black, redness, green, blueness), Cornstarch, ash concrete, white cement, efficiently subtract agent.Blender constitutes with building glue by 801 glue and formaldehyde polyvinyl acetal, for modified cement.
The making of coloured material:
The first definite surface coverage coloured material color that will make;
Second makes the match ratio of the surface coverage coloured material of this color by the professional;
The 3rd strictness is by stirring in the mixing plant of match ratio with the various material input special use in its composition, and mixing time is 15 minutes;
The 4th stirs the back discharging that finishes, the packing of product bucket of packing into.
Certainly the surface colour material also can be the resinae coloured material, and promptly blender mainly is the resinae cementing agent with fine cementitiousness, weatherability and anti-uv-ray, and wherein coloured material comprises:
1. organic pigment; 2. inorganic pigment; 3. other colorable coating or dyestuff
Earlier water-permeable concrete terrace surface is carried out evenly wetting when 2) the surface colour material sprays.The most handy giant with the vaporific permeable concrete surface that evenly is sprayed at, makes permeable concrete surface not have significantly local doing partially or wet partially situation in water.
When the surface colour material blender that 3) stirs leaves standstill, bucket must be carried out encapsulation process in bucket.Avoid under its situation that is placed on illumination for a long time retrogradation to cause being difficult for continuing to use.As being interrupted to some extent in construction progress, the surface colour material blender that leaves standstill the long period will stir again after adding low amounts of water and diluting and use.Annotate: the secondary amount of water does not too much avoid making residue blender color to send out change.With the suitable thickness of warp, graded is mixed in the virgin material that stirs once more and is used as the longer blender of time of repose.
4) carry out surface colour material blender when spraying, must guarantee more abundant, the even thinner former permeable concrete surface that is scattered in of surface colour material blender.Surface layer after the spraying must not have the situation of leaking spray and the alluvial in blocks of surface colour material blender.
5) the surface colour material blender that stirs must stir earlier when the beach rifle sprays pouring at every turn, avoids blender aberration to occur because of precipitation makes spraying process.
6) under the situation of wanting painted permeable concrete ground width to allow, can spray, guarantee of the abundant covering of surface colour material the permeable concrete of original color in its both sides; If under the unallowed situation of its condition (broader), can behind surface colour material bone dries such as disposable spray finishing covering back, fill spray as ground.After this link finished, former permeable concrete was promptly covered by the surface colour material color.Permeable concrete surface is the color that the surface colour material is shown.
Protection in the time of will noting surrounding building and spraying when 7) the surface colour material sprays between the different colours is avoided it is polluted.
8) spraying of surface colour material finishes, and treats the water seasoning of the laggard capable discontinuity of its bone dry, and curing time requires to reach three days at least.
9) as the colorful water-permeable concrete ground through covering after painted the sealing needs are arranged, maintenance is treated to seal behind the permeable concrete surface layer bone dry after finishing.Colorful water-permeable concrete surface reaction after the sealing goes out the gloss of sealant, has more strengthened the surface abrasion resistance ability of colorful water-permeable concrete.
Can also restain for the colorful water-permeable concrete surface with the method for round brush, at this moment, the surface colour material emulsion that cylinder and hairbrush are stained be too much unsuitable, stops up permeable hole when avoiding round brush.
The mass ratio of surface colour material composition is illustrated:
Cement is white cement, the mass ratio of composition:
Blender 1: water 3～5: coloured material 8, wherein blender comprises 801 glue, is commonly called as the formaldehyde polyvinyl acetal of 108 glue, coloured material comprises inorganic pigment, Cornstarch, white cement, water reducing agent, inorganic pigment is made of red inorganic pigment and Yellow organic dye, the mass percent of coloured material is: red inorganic pigment 0.05: Yellow organic dye 0.396: Cornstarch 2.45: white cement 44: water reducing agent 0.352, the colored powder that obtains like this are color shell Huangs.
Wherein cement also can be ash concrete, the at this moment mass ratio of its composition:
Blender 1: water 3～5: coloured material 8, wherein blender comprises 801 glue, is commonly called as the formaldehyde polyvinyl acetal of 108 glue, coloured material comprises inorganic pigment, Cornstarch, ash concrete, water reducing agent, inorganic pigment is made of red inorganic pigment, black inorganic pigment and blue inorganic pigment, and the mass percent of coloured material is: red inorganic pigment 2.495: black inorganic pigment 0.22: blue inorganic pigment 0.101: ash concrete 44: water reducing agent 0.352.The colored powder that obtains like this is that the color old china is red.
Claims (8)
1, a kind of job practices of colorful water-permeable concrete terrace surface is characterized in that, after the permeable concrete in basis paved, it is painted and replace the permeable concrete of surface layer this operation that paves that the method for utilizing the surface colour material to carry out surface coverage is carried out colour.
2, the job practices of colorful water-permeable concrete terrace surface according to claim 1 is characterized in that, the surface colour material comprises blender, water and cement based coloured material, and the cement based coloured material comprises inorganic pigment, Cornstarch, cement, water reducing agent.
The method of this surface coverage comprises the following steps:
1) the permeable concrete of preliminary treatment surface
The clean surface, pollutant and foreign material such as no dust, greasy dirt, the more stone that comes off are rectified and improved as having the surface irregularity that caused by construction, crack, quality problems such as waterproof, and permeable concrete surface, pretreated basis must be without sealing;
2) carry out the permeable terrace surface in basis evenly wetting;
3) strictness of surface colour material is allocated by match ratio: blender and coloured material will stir by proportioning accurately, after wanting during stirring earlier blender and water stirred, again coloured material is poured in the blender solution, stirred while feeding in raw material until evenly;
4) painted to the permeable concrete surface coverage in basis.
3, the job practices of colorful water-permeable concrete terrace surface according to claim 1, it is characterized in that, the surface colour material comprises resinae coloured material and blender, and wherein blender mainly is to be made of the resinae cementing agent with fine cementitiousness, weatherability and anti-uv-ray
Coloured material comprises: organic pigment, inorganic pigment, colorable coating or dyestuff,
The method of this surface coverage comprises the following steps:
1) the permeable concrete of preliminary treatment surface
The clean surface, pollutant and foreign material such as no dust, greasy dirt, the more stone that comes off are rectified and improved as having the surface irregularity that caused by construction, crack, quality problems such as waterproof, and permeable concrete surface, pretreated basis must be without sealing;
2) strictness of surface colour material is allocated by match ratio: blender and coloured material will stir by proportioning accurately, want during stirring earlier the resinae blender to be poured in the bucket, again coloured material is poured in the blender solution, stirred while feeding in raw material until evenly;
3) painted to the permeable concrete surface coverage in basis.
According to the job practices of claim 2 or 3 described colorful water-permeable concrete terrace surfaces, it is characterized in that 4, described spreadability method of colouring comprises spraying, its step is
When a) in bucket, leaving standstill, bucket should be carried out encapsulation process as the surface colour material that stirs;
B) the surface colour material is poured into when the beach rifle sprays at every turn and is stirred earlier;
C) carry out painted to permeable concrete surface, basis and guarantee that the surface colour material emulsion adheres to evenly, does not exist the holiday phenomenon;
D) spraying of surface colour material finishes, and treats the water seasoning of the laggard capable discontinuity of its bone dry, and curing time reaches three days at least.
According to the job practices of claim 2 or 3 described colorful water-permeable concrete terrace surfaces, it is characterized in that 5, described spreadability method of colouring comprises round brush, its step is
When a) in bucket, leaving standstill, bucket should be carried out encapsulation process as the surface colour material that stirs;
B) the surface colour material is poured into when the beach rifle sprays at every turn and is stirred earlier;
C) carry out painted to permeable concrete surface, basis on a small quantity repeatedly and guarantee that the surface colour material emulsion adheres to evenly, do not have the holiday phenomenon, during round brush, the surface colour material emulsion that cylinder and hairbrush are stained with is too much unsuitable, stop up permeable hole when avoiding round brush;
D) spraying of surface colour material finishes, and treats the water seasoning of the laggard capable discontinuity of its bone dry, and curing time reaches three days at least.
6, the job practices of colorful water-permeable concrete terrace surface according to claim 4 is characterized in that, treats to carry out encapsulation process behind the permeable concrete surface layer bone dry after maintenance finishes through the colorful water-permeable concrete ground that covers after painted.
7, the job practices of colorful water-permeable concrete terrace surface according to claim 5 is characterized in that, treats to carry out encapsulation process behind the permeable concrete surface layer bone dry after maintenance finishes through the colorful water-permeable concrete ground that covers after painted.
According to the job practices of claim 2 or 3 described colorful water-permeable concrete terrace surfaces, it is characterized in that 8, surface colour material when spraying takes to avoid the safeguard measure that pollutes during to surrounding building and spraying between the different colours.
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| CNA2008101474033A CN101343854A (en) | 2008-08-14 | 2008-08-14 | Construction method of colorful water-permeable concrete terrace surface |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878671A (en) * | 2015-05-08 | 2015-09-02 | 上海市建筑装饰工程集团有限公司 | Track terrace |
| CN105421724A (en) * | 2015-10-27 | 2016-03-23 | 大连山泰新实业有限公司 | Construction method for covering and spraying ground with colored concrete |
| CN105568806A (en) * | 2015-12-28 | 2016-05-11 | 上海建工一建集团有限公司 | Control method of large-area, large-load terrace differential settlement |
| CN108035210A (en) * | 2017-12-28 | 2018-05-15 | 上海市园林设计研究总院有限公司 | A kind of permeable cement concrete road structure and its construction method |
| CN106348691B (en) * | 2016-08-26 | 2018-07-24 | 盼石（上海）新材料科技股份有限公司 | High service life pervious concrete and preparation method thereof |
| CN108342938A (en) * | 2018-02-08 | 2018-07-31 | 江苏工程职业技术学院 | A kind of construction method of color floor |
-
2008
- 2008-08-14 CN CNA2008101474033A patent/CN101343854A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878671A (en) * | 2015-05-08 | 2015-09-02 | 上海市建筑装饰工程集团有限公司 | Track terrace |
| CN105421724A (en) * | 2015-10-27 | 2016-03-23 | 大连山泰新实业有限公司 | Construction method for covering and spraying ground with colored concrete |
| CN105568806A (en) * | 2015-12-28 | 2016-05-11 | 上海建工一建集团有限公司 | Control method of large-area, large-load terrace differential settlement |
| CN106348691B (en) * | 2016-08-26 | 2018-07-24 | 盼石（上海）新材料科技股份有限公司 | High service life pervious concrete and preparation method thereof |
| CN108035210A (en) * | 2017-12-28 | 2018-05-15 | 上海市园林设计研究总院有限公司 | A kind of permeable cement concrete road structure and its construction method |
| CN108342938A (en) * | 2018-02-08 | 2018-07-31 | 江苏工程职业技术学院 | A kind of construction method of color floor |
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Open date: 20090114 |