CN106431073B - A kind of pervious concrete additive and preparation method thereof - Google Patents
A kind of pervious concrete additive and preparation method thereof Download PDFInfo
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- CN106431073B CN106431073B CN201610859361.0A CN201610859361A CN106431073B CN 106431073 B CN106431073 B CN 106431073B CN 201610859361 A CN201610859361 A CN 201610859361A CN 106431073 B CN106431073 B CN 106431073B
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- pervious concrete
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- concrete additive
- loss reducer
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Classifications
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- 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
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/161—Macromolecular compounds comprising sulfonate or sulfate groups
- C04B24/163—Macromolecular compounds comprising sulfonate or sulfate groups obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/165—Macromolecular compounds comprising sulfonate or sulfate groups obtained by reactions only involving carbon-to-carbon unsaturated bonds containing polyether side chains
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/44—Thickening, gelling or viscosity increasing agents
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/46—Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents
Abstract
The invention discloses a kind of pervious concrete additives, are made of the raw material of following parts by weight：0.5 95 parts of micro mist material, 0.2 3 parts of reinforcing agent, 0.5 1.5 parts of antifoaming agent, 2 10 parts of sticking enhancing water-loss reducer；The invention also discloses the preparation methods of the pervious concrete additive.Present invention uses a large amount of trade wastes, and source is wide, and price is low, the pervious concrete of preparation is while ensureing coefficient of permeability and compression strength, water-permeable brick cost is effectively reduced, while a new way is provided for the processing of industrial residue, there is significant economic and social benefit.The preparation method of the present invention is simple for process, easy to operate, highly practical.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of pervious concrete additive and preparation method thereof.
Background technology
With the constantly improve of urban construction, the requirement for construction material is also higher and higher.Pervious concrete is due to it
Unique structure makes it have good gas permeability and water penetration, for alleviating urban heat land effect, recharge of groundwater and solution
Certainly city waterlogging caused by heavy rain plays good effect, can be applied to city square, cell road and some park roads
Road.
Country vigorously advocates city sponge engineering construction at present, but due to lacking pervious concrete professional technique and construction skill
The problems such as art, it is high to cause some pervious concretes costs, complicated construction technique and later stage function unobvious.At present about saturating
The patent of water coagulation soil and pervious concrete additive is more, but all employs polymer fiber or polymer adhesive.Specially
Sharp CN 103708792A disclose a kind of production method of permeable concrete, have used a kind of PVA fibers；Patent CN
103360000A discloses a kind of pervious concrete and preparation method thereof, has used Organic adhesive；Due to polymer fiber and
Polymer adhesive it is at high price, cause the high cost of pervious concrete.Additionally, due to pervious concrete and conventional concrete
Compared to certain structural particularity, the stage is especially conserved, overlay film is carried out generally after paving, waits for pervious concrete
After solidification for 24 hours, film is opened and carries out watering maintenance, due to the open-celled structure of pervious concrete, water loss is very fast, so
Film must be covered again again after watering, the overlay film that be sprinkled water twice for general one day maintenance, day heat when is also wanted
Increase the number of watering overlay film maintenance, curing cycle is usually 5-7 days.Therefore pervious concrete maintenance processes be one extremely
Cumbersome process.These factors together constitute the factor for hindering pervious concrete to promote and apply.
Invention content
A kind of in view of the deficiencies of the prior art, the present invention provides volumes pervious concrete additive small, easy to use.
The present invention also provides the preparation methods of the pervious concrete additive.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of pervious concrete additive, is made of the raw material of following parts by weight：0.5-95 parts of micro mist material, reinforcing agent
0.2-3 parts, 0.5-1.5 parts of antifoaming agent, 2-10 parts of sticking enhancing water-loss reducer；
The micro mist material is one kind in SILICA FUME, ground blast furnace slag and flyash；
The reinforcing agent is triisopropanolamine or diethanol monoisopropanolamine；
The antifoaming agent is organic silicon defoamer；
The sticking enhancing water-loss reducer is prepared by following steps：
1) polyethylene glycol of the methacrylic acid of 30-50 parts by weight and 10-18 parts by weight is put into reaction vessel, is added
The hydroquinone of the chloroform and 0.4-0.8 parts by weight of 80-100 parts by weight, in 110 DEG C of condensing refluxes of nitrogen protection atmosphere
3.5h obtains first product；
2) first product is evaporated under reduced pressure to removal chloroform at 40 DEG C, obtains esterification polymeric monomer；
3) by the mistake of the allyl polyethenoxy ether of 80-90 parts by weight, the distilled water of 90 parts by weight, 0.4-0.8 parts by weight
Ammonium sulfate and the methylpropene sodium sulfonate of 0.2-0.5 parts by weight are placed in reaction vessel, the esterification polymeric monomer that step 2) is obtained
It is all added in reaction vessel in reaction just 1h by constant pressure funnel, 70 DEG C of reaction 3h use hydroxide after reaction
Sodium solution adjusts pH to 7-8, obtains cement sticking enhancing water-loss reducer.
The SILICA FUME is SiO2Content is more than 90% SILICA FUME.
The ground blast furnace slag is S95 grades of ground blast furnace slags.
The flyash is level-one flyash.
The molecular weight of the allyl polyethenoxy ether is 2400.
The molecular weight of the polyethylene glycol is 400.
A kind of preparation method of pervious concrete additive, is prepared by following steps：
1) micro mist material is added in double rod formula batch mixers, stirs 3min, obtains powder；
2) reinforcing agent, antifoaming agent and sticking enhancing water-loss reducer are uniformly mixed, obtain liquid material；
3) powder is added into double-roll type blender, liquid material is uniformly sprayed in the double-roll type blender in operating, is continued
3min is stirred, pervious concrete additive is obtained.
The additive amount of the pervious concrete additive is the 0.8-1.5% of cement consumption.
Beneficial effects of the present invention：
1. present invention uses a large amount of trade waste, source is wide, and price is low, and the pervious concrete of preparation is ensureing thoroughly
While water coefficient and compression strength, water-permeable brick cost is effectively reduced, while a new way is provided for the processing of industrial residue
Diameter has significant economic and social benefit.
2. the reinforcing agent of the present invention can increase the aggregate-cement ratio in pervious concrete, cement consumption is reduced, is reduced permeable mixed
The production cost for coagulating soil, significantly improves the compression strength of pervious concrete.Cement can be improved in sticking enhancing water-loss reducer used in the present invention
Cladding power on base-material surface reduces the evaporation of surface moisture, reduces cement surface and penetrates through hole number caused by moisture evaporation,
Exempt later stage wet curing, and can guarantee the coefficient of permeability and compression strength of pervious concrete.
3. the pervious concrete additive volume of the present invention is small, of low cost, superior performance is easy to use, is ensureing thoroughly
While water effect and compression strength, the hydroxyl in sticking enhancing water-loss reducer in additive can form hydrogen bond structure with hydrone,
It can prevent the loss of moisture in concrete, the maintenance stage need to only pave coating processing, exempt the step of later stage wet curing
Suddenly, the construction speed for effectively accelerating pervious concrete, simplifies the construction technology of pervious concrete.
4. the preparation method of the present invention is simple for process, easy to operate, highly practical.
Specific implementation mode
The preferred implementation case of the present invention is illustrated below, it should be understood that preferred implementation case described herein
Only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Unless otherwise indicated, the raw material used in the present invention is market purchase gained.
Embodiment 1
A kind of pervious concrete additive, is made of the raw material of following parts by weight：95 parts of micro mist material, reinforcing agent 0.2
Part, 0.5 part of antifoaming agent, 2 parts of sticking enhancing water-loss reducer；
The micro mist material is SiO2Content is more than 90% SILICA FUME；
The reinforcing agent is triisopropanolamine；
The antifoaming agent is organic silicon defoamer；
The sticking enhancing water-loss reducer is prepared by following steps：
1) polyethylene glycol of the methacrylic acid of 30g and 18g is put into reaction vessel, be added 80g chloroform and
The hydroquinone of 0.8g obtains first product in 110 DEG C of condensing reflux 3.5h of nitrogen protection atmosphere；
2) first product is evaporated under reduced pressure to removal chloroform at 40 DEG C, obtains esterification polymeric monomer；
3) by the allyl polyethenoxy ether of 80g, the metering system of the distilled water of 90g, the ammonium persulfate of 0.8g and 0.5g
Sodium sulfonate is placed in reaction vessel, and the esterification polymeric monomer that step 2) is obtained is whole in reaction just 1h by constant pressure funnel
It adds in reaction vessel, 70 DEG C of reaction 3h adjust pH to 7 with sodium hydroxide solution after reaction, obtain cement sticking enhancing water-loss reducer.
A kind of preparation method of pervious concrete additive, is prepared by following steps：
1) micro mist material is added in double rod formula batch mixers, stirs 3min, obtains powder；
2) reinforcing agent, antifoaming agent and sticking enhancing water-loss reducer are uniformly mixed, obtain liquid material；
3) powder is added into double-roll type blender, liquid material is uniformly sprayed in the double-roll type blender in operating, is continued
3min is stirred, pervious concrete additive is obtained.
Embodiment 2
A kind of pervious concrete additive, is made of the raw material of following parts by weight：50 parts of micro mist material, reinforcing agent 1.5
Part, 1 part of antifoaming agent, 6 parts of sticking enhancing water-loss reducer；
The micro mist material is S95 grades of ground blast furnace slags；
The reinforcing agent is diethanol monoisopropanolamine；
The sticking enhancing water-loss reducer is prepared by following steps：
1) polyethylene glycol of the methacrylic acid of 40 parts by weight and 14 parts by weight is put into reaction vessel, 90 weight is added
The hydroquinone of the chloroform and 0.6 parts by weight of part obtains first product in 110 DEG C of condensing reflux 3.5h of nitrogen protection atmosphere；
2) first product is evaporated under reduced pressure to removal chloroform at 40 DEG C, obtains esterification polymeric monomer；
3) by the allyl polyethenoxy ether of 85 parts by weight, the distilled water of 90 parts by weight, 0.6 parts by weight ammonium persulfate and
The methylpropene sodium sulfonate of 0.3 parts by weight is placed in reaction vessel, and the esterification polymeric monomer that step 2) obtains is passed through constant pressure addition
Funnel all adds in reaction vessel in reaction just 1h, and 70 DEG C of reaction 3h adjust pH with sodium hydroxide solution after reaction
To 8, cement sticking enhancing water-loss reducer is obtained.
Remaining is the same as embodiment 1.
Embodiment 3
A kind of pervious concrete additive, is made of the raw material of following parts by weight：0.5 part of micro mist material, reinforcing agent 3
Part, 1.5 parts of antifoaming agent, 10 parts of sticking enhancing water-loss reducer；
The micro mist material is level-one flyash；
The reinforcing agent is triisopropanolamine；
The sticking enhancing water-loss reducer is prepared by following steps：
1) polyethylene glycol of the methacrylic acid of 50 parts by weight and 10 parts by weight is put into reaction vessel, 100 weights is added
The hydroquinone for measuring the chloroform and 0.4 parts by weight of part obtains first product in 110 DEG C of condensing reflux 3.5h of nitrogen protection atmosphere；
2) first product is evaporated under reduced pressure to removal chloroform at 40 DEG C, obtains esterification polymeric monomer；
3) by the allyl polyethenoxy ether of 90 parts by weight, the distilled water of 90 parts by weight, 0.4 parts by weight ammonium persulfate and
The methylpropene sodium sulfonate of 0.2 parts by weight is placed in reaction vessel, and the esterification polymeric monomer that step 2) obtains is passed through constant pressure addition
Funnel all adds in reaction vessel in reaction just 1h, and 70 DEG C of reaction 3h adjust pH with sodium hydroxide solution after reaction
To 7, cement sticking enhancing water-loss reducer is obtained.
Remaining is the same as embodiment 1.
Performance test：According to the proportioning of 12 parts of 5-10mm stones, 3.45 parts of 42.5 Portland cement, 0.996 part of water
Prepare pervious concrete, wherein pervious concrete prepared by experimental group 1-3 uses permeable coagulation prepared by embodiment 1-3 respectively
Soil additive, additive amount are the 1.2% of cement quality.According to CJJ/T135-2009《Water-permeable cement concrete pavement technique is advised
Journey》Standard is tested, and the results are shown in Table 1.
1 the performance test results of table
Claims (7)
1. a kind of pervious concrete additive, which is characterized in that be made of the raw material of following parts by weight：Micro mist material 0.5-95
Part, 0.2-3 parts of reinforcing agent, 0.5-1.5 parts of antifoaming agent, 2-10 parts of sticking enhancing water-loss reducer；
The micro mist material is one kind in SILICA FUME, ground blast furnace slag and flyash；
The reinforcing agent is triisopropanolamine or diethanol monoisopropanolamine；
The antifoaming agent is organic silicon defoamer；
The sticking enhancing water-loss reducer is prepared by following steps：
1) polyethylene glycol of the methacrylic acid of 30-50 parts by weight and 10-18 parts by weight is put into reaction vessel, 80- is added
The hydroquinone of the chloroform and 0.4-0.8 parts by weight of 100 parts by weight, in 110 DEG C of condensing reflux 3.5h of nitrogen protection atmosphere,
Obtain first product；
2) first product is evaporated under reduced pressure to removal chloroform at 40 DEG C, obtains esterification polymeric monomer；
3) by the allyl polyethenoxy ether of 80-90 parts by weight, the persulfuric acid of the distilled water of 90 parts by weight, 0.4-0.8 parts by weight
Ammonium and the methylpropene sodium sulfonate of 0.2-0.5 parts by weight are placed in reaction vessel, and the esterification polymeric monomer that step 2) obtains is passed through
Constant pressure funnel all adds in reaction vessel in reaction just 1h, 70 DEG C of reaction 3h, after reaction sodium hydroxide solution
PH to 7-8 is adjusted, cement sticking enhancing water-loss reducer is obtained.
2. pervious concrete additive according to claim 1, which is characterized in that the SILICA FUME is SiO2Content is more than
90% SILICA FUME.
3. pervious concrete additive according to claim 1, which is characterized in that the ground blast furnace slag is S95 grades levigate
Miberal powder.
4. pervious concrete additive according to claim 1, which is characterized in that the flyash is level-one flyash.
5. pervious concrete additive according to claim 1, which is characterized in that point of the allyl polyethenoxy ether
Son amount is 2400.
6. pervious concrete additive according to claim 1, which is characterized in that the molecular weight of the polyethylene glycol is
400。
7. the preparation method of the pervious concrete additive described in a kind of any one of claim 1-6, which is characterized in that be by
What following steps were prepared：
1) micro mist material is added in double rod formula batch mixers, stirs 3min, obtains powder；
2) reinforcing agent, antifoaming agent and sticking enhancing water-loss reducer are uniformly mixed, obtain liquid material；
3) powder is added into double-roll type blender, liquid material is uniformly sprayed in the double-roll type blender in operating, continues to stir
3min obtains pervious concrete additive.
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| CN107601996A (en) * | 2017-10-24 | 2018-01-19 | 北京巨弘科技有限公司 | A kind of cementing agent for improving permeable resistance to terrace material intensity and preparation method thereof |
| CN107902951B (en) * | 2017-12-14 | 2020-10-20 | 日照弗尔曼新材料科技有限公司 | Special additive for pervious concrete |
| CN108585578B (en) * | 2018-05-14 | 2020-01-14 | 厦门理工学院 | High-strength pervious concrete additive and preparation method thereof |
| CN110894144A (en) * | 2019-12-26 | 2020-03-20 | 陕西德和建材有限公司 | Additive special for sprayed concrete |
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| US8394191B2 (en) * | 2006-12-06 | 2013-03-12 | Construction Research & Technology Gmbh | Rheology modifying additive for cementitious compositions |
| CN101024566A (en) * | 2007-01-29 | 2007-08-29 | 郭震 | Polycarboxylic acid series concrete composite water-proof agent and its preparing method |
| CN101293760A (en) * | 2007-04-28 | 2008-10-29 | 上海固华墙体环保科技有限公司 | Colorful water permeable concrete pavement and construction technique |
| DE102008044395A1 (en) * | 2008-12-05 | 2010-06-10 | Wacker Chemie Ag | Drainage concrete composition |
| FR2980790B1 (en) * | 2011-10-04 | 2014-01-31 | Lafarge Sa | BAG AND ITS USE TO ADJUVANT A HYDRAULIC COMPOSITION |
| CN105924593A (en) * | 2016-06-08 | 2016-09-07 | 柳州市强威锻造厂 | Early-strength type polycarboxylate superplasticizer |
| CN105859980A (en) * | 2016-06-08 | 2016-08-17 | 柳州市强威锻造厂 | Slow-release type polycarboxylate water reducer |
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