CN106186795B - A kind of pervious concrete special additive and its application - Google Patents
A kind of pervious concrete special additive and its application Download PDFInfo
- Publication number
- CN106186795B CN106186795B CN201610539959.1A CN201610539959A CN106186795B CN 106186795 B CN106186795 B CN 106186795B CN 201610539959 A CN201610539959 A CN 201610539959A CN 106186795 B CN106186795 B CN 106186795B
- Authority
- CN
- China
- Prior art keywords
- pervious concrete
- water
- special additive
- concrete special
- sodium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of pervious concrete special additive and its applications.Pervious concrete special additive each component of the present invention presses following mass percentage composition：Polycarboxylate water-reducer 10 20%, polycarboxylic acid slump retaining agent 5 25%, water-retaining agent 0.5 3%, thickener 0.5 5%, retarder 1 5%, water 52 75%；Dosage of the additive of the present invention in pervious concrete is the 1 2% of cementitious material quality.There is good synergistic effect between water-permeable cement concrete special additive each component of the present invention, on the basis of ensureing its water permeability, can preferably keep the workability of pervious concrete by 2 hours or more, improve through when after intensity, realize pervious concrete can premixing production.
Description
Technical field
The present invention relates to concrete additives in building materials technical fields, and in particular to a kind of pervious concrete is special outer
Add agent and its application.
Background technology
" sponge city " is the important directions of novel Urbanization Progress in " 13 " planning.Naturally accumulation, naturally osmotic,
The construction in " the sponge city " of self-purification will effectively solve the problems, such as waterlogging, the shortage of water resources problem in some cities, favorably
In improving urban ecological environment, increases social benefit, be the active demand of novel Urbanization Construction.
Pervious concrete has good permeable breathable, efficient water-holding capacity and good dicoration, is " sponge
A kind of new material that city " is worthy to be popularized in building.Pervious concrete does not mix fine aggregate, by cementitious material, coarse aggregate, additional
Agent and water mix and stir according to a certain percentage, referred to as Sand-free permeable concrete.The characteristics of pervious concrete, is free from fine aggregate, adopts
Use simple grain diameter coarse aggregate as skeleton, cement paste thin layer is wrapped in the surface of coarse aggregate particle, as between particles of aggregates
Glued layer forms the porous concrete material of one pore structure of skeleton.
The widely used bottleneck problem of premixing pervious concrete is how to extend premixing pervious concrete transportation range,
Expand market radius.Pervious concrete haulage time is shorter at present, can only meet the construction requirement of short distance transport.It is wherein permeable
The retainable control of the workability of pervious concrete is to determine that premixing pervious concrete is widely used during concrete transportation
Key technology because premixing pervious concrete consistency control it is more more strict than normal concrete, it is slightly dilute, isolate, slightly it is thick then
Setting time is too short, and hanging performance requirement is good.In long-distance transportation pervious concrete there are the problem of：Pervious concrete accumulation fortune
Pervious concrete is porous when defeated and construction, the internal a large amount of evaporations that there is moisture with surface, and moisture loss is fast；In transport process
Middle slurry workability loss of energy itself；The caused slurry that jolts in transportational process is sunk to the bottom.It is special to solve problem above needs
Additive is adjusted, and has no at present a kind of special for reduction moisture evaporation and the raising retainable pervious concrete of workability
Use additive.
Invention content
The purpose of the present invention is overcoming existing pervious concrete additive, a kind of special additive is provided, it can root
According to environment temperature, the variation of transportation range, the water tariff collection of concrete is adjusted, working performance is kept, setting time, make permeable mixed
Solidifying soil has good controllability, improve its through when workability and improve through when after intensity.
The invention is realized by the following technical scheme：
A kind of pervious concrete special additive, each component press following mass percentage composition：
The polycarboxylate water-reducer is ester type polycarboxylate water-reducer, and the polycarboxylate water-reducer adaptability of ester type is good, to water
Sensibility is relatively low, improves the retentivity of pervious concrete working performance.
The polycarboxylic acid slump retaining agent is ester type polycarboxylic acid slump retaining agent, and ester type polycarboxylic acid slump retaining agent, release time is shallower, changes
The retentivity of kind pervious concrete working performance.
The water-retaining agent is maltodextrin, water soluble starch, starch-grafted polyacrylamide copolymer, starch-grafting
In acrylic copolymer, Sodium Hyaluronate, sodium humate, D-sorbite, chitosan, Sodium Polyacrylate, polyacrylamide
One or more, water-retaining agent reduces or avoids the evaporation loss of the moisture in transport or waiting process, improves pervious concrete
Construction State.
The thickener is inorganic thickening agent, cellulose ether, natural gum and its modifier, polyvinyl pyrrolidone, water
It is one or more in dissolubility polyurethanes；
The inorganic thickening agent includes the mixture of one or both of attapulgite, sodium magnesium silicate, the cellulose
Ether includes the mixture of one or both of spermaceti hydroxyethyl cellulose, sodium carboxymethylcellulose, the natural gum and its is changed
Property object include warm human relations glue, xanthan gum, guar gum, cation guar gum, hydroxypropyl guar gum, alginic acid and its (ammonium, sodium, potassium) salt
In one or more mixtures.
The retarder be sugar, sodium citrate, 1-hydroxy ethylidene-1,1-diphosphonic acid it is one or more.
Preferably, a kind of pervious concrete special additive of the present invention, each component press following mass percentage composition：
The present invention also provides a kind of application processes of the pervious concrete special additive, and the additive is permeable
Dosage in concrete is the 1-2% of cementitious material quality.
The pervious concrete of additive of the present invention, which is added, can reach prolonged working performance holding, slurry aggregate
Adhesive property is good, no separation, and 2h moisture evaporations loss late can be controlled in 4%-13%, and 2h consistency loss late can be controlled in 5-
Construction requirement can preferably be met after 15%, 2h.
There is good synergistic effect between water-permeable cement concrete special additive each component of the present invention, protecting
On the basis of demonstrate,proving its water permeability, can preferably keep the workability of pervious concrete by 2 hours or more, improve through when after
Intensity, realize pervious concrete can premixing production.
Specific implementation mode
The test method of moisture evaporation loss late is to take a certain amount of pervious concrete m newly mixed1It is placed on 25 ± 2 DEG C
In drying box, weight loss when weighing its 2h is as water evaporation quantity m2, pervious concrete gross weight m3, water consumption m4, 2h moisture
Evaporation rate isThe test method is suitable for following all embodiments.
The test method of consistency loss late：The pervious concrete newly mixed is shaken by force and screens out slurry, uses mortar consistency tester
It is tested, tests the consistency c initially with 2h respectively1And c2, consistency loss late isThe test method is suitable for
Following all embodiments.
In the following, the present invention will be further described in detail by way of specific embodiments, but should not this be interpreted as this hair
Bright range is only limitted to following instance.
Following embodiments are ester type polycarboxylate water-reducer, polycarboxylic acid slump retaining agent with polycarboxylate water-reducer used in comparative example
It is ester type polycarboxylic acid slump retaining agent.
Embodiment 1
By polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, maltodextrin and chitosan, sodium carboxymethylcellulose and Wen Lun glue,
Sugar and water in mass ratio 10：10：2：1：2：75 proportionings, are mixed evenly, obtain pervious concrete special additive.By C25
When pervious concrete coordination in works concrete batching, the dosage of above-mentioned additive is the 2.0% of cementitious material quality.
Embodiment 2
By polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, maltodextrin and chitosan, sodium carboxymethylcellulose and Wen Lun glue,
Sugar and water in mass ratio 10：10：2：1：2：75 proportionings, are mixed evenly, obtain pervious concrete special additive.By C25
When pervious concrete coordination in works concrete batching, the dosage of above-mentioned additive is the 1.0% of cementitious material quality.
Embodiment 3
Polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, Sodium Polyacrylate and D-sorbite, xanthan gum and polyvinyl arsenic are coughed up
Alkanone, sodium citrate and water in mass ratio 20：15：3：5：5：52 proportionings, are mixed evenly, and it is special outer to obtain pervious concrete
Add agent.When by C25 pervious concrete coordination in works concrete batchings, the dosage of above-mentioned additive is cementitious material quality
1.0%.
Embodiment 4
By polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, starch-grafted polyacrylamide copolymer and Sodium Hyaluronate, whale
Wax hydroxyethyl cellulose and alginic acid and its sylvite, 1-hydroxy ethylidene-1,1-diphosphonic acid and water in mass ratio 10：25：3：5：1：56 proportionings,
It is mixed evenly, obtains pervious concrete special additive.When by C25 pervious concrete coordination in works concrete batchings,
The dosage of above-mentioned additive is the 1.0% of cementitious material quality.Embodiment 5
By polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, water soluble starch and polyacrylamide, hydroxypropyl guar gum and water-soluble
Property polyurethanes, sugar and water in mass ratio 13：8：1：1：2：75 proportionings, are mixed evenly, it is special to obtain pervious concrete
Use additive.When by C25 pervious concrete coordination in works concrete batchings, the dosage of above-mentioned additive is cementitious material quality
1.5%.
Embodiment 6
By polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, the grafting polyacrylic acid copolymerized object of starch-and sodium humate, concave convex rod
Soil and sodium magnesium silicate, sugar and water in mass ratio 13：8：1：1：2：75 proportionings, are mixed evenly, it is special to obtain pervious concrete
Additive.When by C25 pervious concrete coordination in works concrete batchings, the dosage of above-mentioned additive is cementitious material quality
1.5%.
Comparative example 1
By polycarboxylate water-reducer and water in mass ratio 10：90 proportionings, are mixed evenly, and it is special outer to obtain pervious concrete
Add agent.When by C25 pervious concrete coordination in works concrete batchings, the dosage of above-mentioned additive is cementitious material quality
2.0%.
Comparative example 2
By polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, sugar and water in mass ratio 10：10：2：78 proportionings are mixed equal
It is even, obtain pervious concrete special additive.When by C25 pervious concrete coordination in works concrete batchings, above-mentioned additive
Dosage be cementitious material quality 2.0%.
Comparative example 3
By polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, sodium carboxymethylcellulose and Wen Lun glue, sugar and water in mass ratio 10：
10：1：2：77 proportionings, are mixed evenly, obtain pervious concrete special additive.By C25 pervious concrete coordination in works
When concrete batching, the dosage of above-mentioned additive is cementitious material quality
2.0%
With reference to CJJ/T135-2009《Water-permeable cement concrete pavement technique regulation》Requirement, carried out participate in the present invention
Pervious concrete special additive after concrete performance in the comparison of control group, the various performance tests of pervious concrete
As a result such as table 1.The match ratio of pervious concrete is C：G：W=400：1570：100.
The various the performance test results of 1 pervious concrete of table
Contrast test shows above：There is synergy between each component of pervious concrete special additive, lack
Any one, can cause the degradation of pervious concrete some aspects, the slurry that can be made under each component collective effect less
Aggregate adhesive property is good, no separation, and 2h moisture evaporations loss late can be controlled in 4%-13%, and 2h consistency loss late can control
Pervious concrete has good cohesiveness after 5-15%, 2h, preferably meets the pervious concrete of construction requirement.
Claims (6)
1. a kind of pervious concrete special additive, which is characterized in that each component presses following mass percentage composition：
The polycarboxylate water-reducer is ester type polycarboxylate water-reducer, and the polycarboxylic acid slump retaining agent is ester type polycarboxylic acid slump retaining agent.
2. a kind of pervious concrete special additive according to claim 1, which is characterized in that the water-retaining agent is malt
Dextrin, water soluble starch, starch-grafted polyacrylamide copolymer, the grafting polyacrylic acid copolymerized object of starch-, Sodium Hyaluronate,
It is one or more in sodium humate, D-sorbite, chitosan, Sodium Polyacrylate, polyacrylamide.
3. a kind of pervious concrete special additive according to claim 1, which is characterized in that the thickener is inorganic
One kind in thickener, cellulose ether, natural gum and its modifier, polyvinyl pyrrolidone, water-soluble poly carbamate
Or it is a variety of.
4. a kind of pervious concrete special additive according to claim 3, which is characterized in that the inorganic thickening agent is
The mixture of one or both of attapulgite, sodium magnesium silicate, the cellulose ether are spermaceti hydroxyethyl cellulose, carboxymethyl
The mixture of one or both of sodium cellulosate, the natural gum and its modifier are warm human relations glue, xanthan gum, guar gum, sun
One or more mixtures in cationic guar, hydroxypropyl guar gum, alginic acid and its salt.
5. a kind of pervious concrete special additive according to claim 1, which is characterized in that the retarder be sugar,
Sodium citrate, 1-hydroxy ethylidene-1,1-diphosphonic acid it is one or more.
6. a kind of application process of pervious concrete special additive described in any one of claim 1 to 5, which is characterized in that
Dosage of the additive in pervious concrete is the 1-2% of cementitious material quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539959.1A CN106186795B (en) | 2016-07-08 | 2016-07-08 | A kind of pervious concrete special additive and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539959.1A CN106186795B (en) | 2016-07-08 | 2016-07-08 | A kind of pervious concrete special additive and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106186795A CN106186795A (en) | 2016-12-07 |
| CN106186795B true CN106186795B (en) | 2018-07-20 |
Family
ID=57473201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610539959.1A Active CN106186795B (en) | 2016-07-08 | 2016-07-08 | A kind of pervious concrete special additive and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106186795B (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162473A (en) * | 2017-07-23 | 2017-09-15 | 四川华西绿舍建材有限公司 | A kind of pervious concrete special additive and its application |
| CN107555835A (en) * | 2017-09-08 | 2018-01-09 | 中建西部建设西南有限公司 | It is a kind of to improve and maintain the additive and preparation method of pervious concrete workability |
| CN107640924B (en) * | 2017-10-09 | 2020-02-14 | 青岛圣得尔建材科技有限公司 | Rust inhibitor for reinforced concrete and preparation method thereof |
| CN108083678B (en) * | 2017-12-21 | 2020-01-07 | 河海大学 | Composite polycarboxylic acid early strength water reducing agent and preparation method thereof |
| CN108455900A (en) * | 2018-01-25 | 2018-08-28 | 四川通德商品混凝土有限公司 | Pervious concrete and its preparation process, paving process |
| CN108275909A (en) * | 2018-02-08 | 2018-07-13 | 韶关学院 | A kind of cement base porous pavement meterial additive and its application |
| CN108585589B (en) * | 2018-04-28 | 2020-12-18 | 榛硕（武汉）智能科技有限公司 | Concrete additive and application thereof |
| CN109095814A (en) * | 2018-05-30 | 2018-12-28 | 江苏百瑞吉新材料有限公司 | A kind of rust-proof type poly carboxylic acid series water reducer and preparation method thereof |
| CN108947318A (en) * | 2018-07-24 | 2018-12-07 | 成都建工预筑科技有限公司 | The wet surface layer additive of plate of mating formation and its preparation process |
| CN108996961A (en) * | 2018-07-24 | 2018-12-14 | 成都建工预筑科技有限公司 | Regenerated road surface is mated formation plate and its manufacturing process |
| CN108996942A (en) * | 2018-07-24 | 2018-12-14 | 成都建工预筑科技有限公司 | A kind of pervious concrete special additive |
| CN108911573A (en) * | 2018-07-24 | 2018-11-30 | 成都建工预筑科技有限公司 | Steel fiber reinforced concrete special additive |
| CN108975755B (en) * | 2018-07-24 | 2020-11-20 | 成都建工预筑科技有限公司 | Additive special for recycled concrete |
| CN109970409A (en) * | 2019-03-18 | 2019-07-05 | 北京国旺混凝土有限公司 | A kind of commerical ready-mixed concrete and preparation method thereof of high intensity |
| CN110550884A (en) * | 2019-09-16 | 2019-12-10 | 山西黄腾化工有限公司 | pervious concrete additive and production process thereof |
| CN110698109A (en) * | 2019-09-24 | 2020-01-17 | 上海建工材料工程有限公司 | Special high-workability bleeding-resistant additive for nanoscale concrete |
| CN110606691A (en) * | 2019-10-17 | 2019-12-24 | 江苏兆佳建材科技有限公司 | Concrete high-efficiency water reducing agent and preparation method thereof |
| CN111825366A (en) * | 2020-08-12 | 2020-10-27 | 韩昌龙 | Concrete additive and preparation method thereof |
| CN112851189A (en) * | 2021-03-05 | 2021-05-28 | 马永胜 | Concrete admixture and preparation method and application thereof |
| CN112679136B (en) * | 2021-03-16 | 2021-06-22 | 广东博智林机器人有限公司 | Water-retaining agent and preparation method thereof, ceramic tile glue and preparation method thereof |
| CN113387657B (en) * | 2021-07-13 | 2022-10-18 | 河南融之科建材有限公司 | High-strength anti-cracking masonry dry-mixed mortar and production process thereof |
| CN113683341A (en) * | 2021-09-30 | 2021-11-23 | 深圳市三绿科技有限公司 | Concrete viscosity modifier and preparation method thereof |
| CN115321870B (en) * | 2022-08-05 | 2023-04-14 | 安徽皖科新科技发展有限公司 | Special additive for lightweight concrete and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466993A (en) * | 2013-09-29 | 2013-12-25 | 江苏名和集团有限公司 | Additive for pervious concrete and application thereof |
| CN105293988A (en) * | 2015-11-26 | 2016-02-03 | 中铁建设集团有限公司 | Modified admixture for cement-based pervious concrete and preparation method of modified admixture |
| CN105366984A (en) * | 2015-12-08 | 2016-03-02 | 科之杰新材料集团有限公司 | Wet-mixed mortar water-retention plasticizer, and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4643857B2 (en) * | 2001-06-05 | 2011-03-02 | 太平洋セメント株式会社 | Permeable concrete |
-
2016
- 2016-07-08 CN CN201610539959.1A patent/CN106186795B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466993A (en) * | 2013-09-29 | 2013-12-25 | 江苏名和集团有限公司 | Additive for pervious concrete and application thereof |
| CN105293988A (en) * | 2015-11-26 | 2016-02-03 | 中铁建设集团有限公司 | Modified admixture for cement-based pervious concrete and preparation method of modified admixture |
| CN105366984A (en) * | 2015-12-08 | 2016-03-02 | 科之杰新材料集团有限公司 | Wet-mixed mortar water-retention plasticizer, and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 高性能聚羧酸类保坍剂的研究与应用;张新民等;《混凝土》;20100827(第8期);第77页图1和图3、第2.2节第3-4行、第78页第3.5节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106186795A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106186795B (en) | A kind of pervious concrete special additive and its application | |
| CN105130354B (en) | A kind of plastering gupsum and preparation method thereof | |
| CN102503346B (en) | Cement-based penetrable crystallized waterproof paint, preparation method and construction method thereof | |
| CN103058619B (en) | Mineral powder-doped polymer waterproof mortar and using method thereof | |
| CN104086141B (en) | A kind of building dry-mixed plastering mortar and preparation method thereof | |
| CN108558336A (en) | A kind of plant growth pervious concrete of high-performance | |
| CN103496922A (en) | Double-component ceramic tile interface agent as well as preparation method and using method thereof | |
| CN103936346B (en) | A kind of haydites of book structure pervious ecological concrete | |
| CN104402350B (en) | Earth building material modification method and the method that building block is prepared using the modified raw-soil | |
| CN110054430A (en) | A kind of pervious concrete thickening mentions strong type polycarboxylate water-reducer | |
| CN110092607A (en) | A kind of aqueous liquid reinforcer of high-performance permeable concrete and preparation method thereof | |
| CN103342527A (en) | Waste concrete reclaimed tunnel back lining grouting material and preparation method thereof | |
| CN107601985A (en) | A kind of ceramic tile interface agent | |
| CN107344822A (en) | One kind is containing bentonitic premixing mortar water-keeping thickening material and preparation method thereof | |
| CN109485295A (en) | A kind of pervious concrete slow setting reinforcing agent and preparation method thereof | |
| CN104072061B (en) | A kind of coarse porous concrete containing low-quality regeneration aggregate and preparation method thereof | |
| CN103936328A (en) | Mortar water retention thickener | |
| CN103030346A (en) | Outer wall decorative mortar | |
| CN107746231A (en) | The production method of southern interior wall cement mortar | |
| CN116040980B (en) | Wet-mixed mortar additive, preparation method thereof and wet-mixed mortar | |
| CN107857542A (en) | The production method of cement for construction in sea wind and wave resistance mortar | |
| CN106747102A (en) | Mandruka concrete and its preparation technology | |
| CN110510912A (en) | A kind of wet mixing mortar additive and preparation method thereof | |
| CN104003646B (en) | A kind of dry-mixed mortar water-keeping thickening material and application thereof | |
| CN109574535A (en) | A kind of pervious concrete additive and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |