CN110054472A - A kind of high osmosis pervious concrete cementing agent - Google Patents
A kind of high osmosis pervious concrete cementing agent Download PDFInfo
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- CN110054472A CN110054472A CN201910445503.2A CN201910445503A CN110054472A CN 110054472 A CN110054472 A CN 110054472A CN 201910445503 A CN201910445503 A CN 201910445503A CN 110054472 A CN110054472 A CN 110054472A
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/344—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention provides a kind of high osmosis pervious concrete cementing agent, primary raw material includes magnesium phosphate cement, polysiloxane, epoxy resin, phenolic resin, hydroxypropyl acrylate, acrylamide, cellulose ether, reactive silica Si powder, gelatine powder, gelatin, polyvinyl alcohol, pentaerythrite, hydrated calcium aluminate sulfate, calcium carbonate crystal whisker, neopelex, 2,4- pentadienoic acid zinc salt, coupling agent, defoaming agent and water etc., with excellent bond effect, meet pavement strength requirement, and can satisfy the permeable requirement of high osmosis pervious concrete.
Description
Technical field
The present invention relates to building material technical fields, particularly, are related to a kind of high osmosis pervious concrete cementing agent.
Background technique
With the development of social economy and the process of urban construction, the terrestrial reference of modern city is gradually by the room of armored concrete
The fluid-tight road surface that room building and concrete are laid with is covered, and compared with natural soils, closed urban surface is to urban belt
Carry out a series of problems.Traditional city concrete road surface has blocked water-vapor exchange because mortar condenses, and the overwhelming majority forms earth's surface
Runoff flows into rivers by drainage, not only increases the expense of urban operating mechanism, and is easily created flood, city
Underground water is unable to get good supplement, ground decline, and city temperature increases.
With the process of Chinese sea Development of Urbanization, pervious concrete pavement is widely used.Pervious concrete, also known as
Celluar concrete, its main feature is that using simple grain pole coarse aggregate as skeleton, cement mortar thin layer is wrapped in the table of coarse aggregate particle
Face forms skeleton --- the porous concrete material of pore structure as the glued layer between particles of aggregates.This permeable coagulation
Soil surface material can not only allow rainwater flow into underground, effective recharge of groundwater, and can effectively eliminate ground and oil compounds.It is this
Road surface is all not easily formed ponding.Avoid " the cities such as the decline of level of ground water caused by closure concrete construction, tropical island effect
Disease ", pervious concrete form heat and exchange of moisture by earth's surface and air, can reduce surface temperature, increase humidity, adjust gas
It waits, hole can also absorb automobile noise, have the function of ecological nursing to city.In recent years, with the enhancing of the ecological awareness, country
Energy-saving and emission-reduction are vigorously advocated, under this overall background, pervious concrete is widely used in the driveway in city, pavement, stops
The places such as parking lot, square and residential area.
The critical materials of pervious concrete are cementing materials, it makes concrete particle saturation bonding, and there are honeycomb-like
Hole, forms three-dimensional section of the network-type with gap, and aqueous vapor can just be permeated by hole.Traditional pervious concrete it is cementing
Using the portland cement of high grade as adhesives, cement is fragile material for agent, and tensile strength is smaller than compression strength
Much, plastic cracking, poor toughness are easy.Now with some substitute products, but generally existing bond effect is poor, or even influences saturating
The problems such as aqueous.Generally, existing pervious concrete material is unable to satisfy the current demand of pavement strength.
Summary of the invention
It is an object of that present invention to provide a kind of high osmosis pervious concrete cementing agent, with solve bond effect it is poor, can not
Meet the technical problems such as pavement strength requirement.
To achieve the above object, the present invention provides a kind of high osmosis pervious concrete cementing agent, in parts by weight, packet
It includes: 100 parts of magnesium phosphate cement, 15~20 parts of polysiloxane, 25~35 parts of epoxy resin, 12~15 parts of phenolic resin, third
13~18 parts of olefin(e) acid hydroxypropyl acrylate, 3~6 parts of acrylamide, 8~10 parts of cellulose ether, 6~8 parts of reactive silica Si powder, gelatin
3~4 parts, 8~10 parts of polyvinyl alcohol, 6~9 parts of pentaerythrite, 4~7 parts of hydrated calcium aluminate sulfate, 10~12 parts of calcium carbonate crystal whisker,
3~4 parts of neopelex, 2,4- 1~2 part of pentadienoic acid zinc salts, 3~4 parts of coupling agent, 4~5 parts of defoaming agent, water 45
~55 parts.
Preferably, the calcium carbonate crystal whisker carries out organically-modified, and specific method is: calcium carbonate crystal whisker is immersed polyethylene glycol
In 400,3~4 hours are stood, filtering is then immersed in polyglycerol polyricinoleate, supersonic oscillations 20~30 minutes, is filtered, and is dried
It is dry to get.
It is further preferred that the mass ratio of calcium carbonate crystal whisker, polyethylene glycol 400, polyglycerol ricinoleate is 1:8~10:8
~10.
Preferably, 2, the 4- pentadienoic acid zinc salt is prepared by the following method to obtain: by 2,4- pentadienoic acid with
The sodium hydroxide solution of mass concentration 12% is uniformly mixed, so that pH=8~10, the zinc nitrate that mass concentration 10% is added is molten
Liquid is stirred to react 30~40 minutes, filter, washing, drying to get；Contained nitric acid in 2,4- pentadienoic acid and zinc nitrate solution
The molar ratio of zinc is 1:1~1.2.
It is further preferred that being washed with deionized 2~3 times.
It is further preferred that the condition of drying are as follows: 125~140 DEG C dry 30~60 minutes.
Preferably, the coupling agent is selected from any one of Silane coupling agent KH550, KH792 or DL171.
Preferably, the defoaming agent is in polyoxyethylene polyoxy propyl alcohol amidogen ether, dimethyl silicone polymer or silicone emulsion
It is any.
A kind of preparation process of above-mentioned high osmosis pervious concrete cementing agent, the specific steps are as follows:
(1) first the magnesium phosphate cement of formula ratio, reactive silica Si powder, hydrated calcium aluminate sulfate are uniformly mixed, are obtained
Mixed powder, it is spare；
(2) then by the gelatin of formula ratio, polyvinyl alcohol, hydroxypropyl acrylate, acrylamide, cellulose ether, Ji Wusi
Alcohol, neopelex are soluble in water, obtain mixed liquor, spare；
(3) polysiloxane of formula ratio, epoxy resin, phenolic resin are kneaded again, obtain compounded resin, it is spare；
(4) finally compounded resin obtained by mixed powder obtained by step (1) and step (3) is added in truck mixer, is stirred
Mix 2~3 minutes, then sequentially add the calcium carbonate crystal whisker of formula ratio, 2,4- pentadienoic acid zinc salt, coupling agent, defoaming agent and
Mixed liquor obtained by step (2) stirs 5~6 minutes to get the cementing agent.
Preferably, it in step (1), is realized and is mixed using high-speed mixer, mixing temperature is 17~19 DEG C, and incorporation time is
3~4 minutes.
Preferably, the specific method of step (2) is: first gelatin and polyvinyl alcohol being dissolved in boiling water, naturally cool to room
Warm (25 DEG C) are then added hydroxypropyl acrylate, acrylamide, cellulose ether, pentaerythrite, neopelex, stir
It mixes to being completely dissolved.
Preferably, it in step (3), is realized and is kneaded using mixer, process conditions are as follows: 35~40 DEG C of melting temperature, mixing
Machine revolving speed is 70~80 revs/min, and mixing time is 5~8 minutes.
Application of the above-mentioned adhesive in high osmosis pervious concrete.
Preferably, addition weight accounting of the adhesive in concrete is 0.2~0.5%.
The invention has the following advantages:
Primary raw material of the invention includes magnesium phosphate cement, polysiloxane, epoxy resin, phenolic resin, acrylic acid
Hydroxypropyl acrylate, acrylamide, cellulose ether, reactive silica Si powder, gelatin, polyvinyl alcohol, pentaerythrite, aquation sulphur aluminic acid
Calcium, calcium carbonate crystal whisker, neopelex, 2,4- pentadienoic acid zinc salt, coupling agent, defoaming agent and water etc. have excellent
Bond effect, meet pavement strength requirement, and can satisfy the permeable requirement of high osmosis pervious concrete.
The present invention is compound by cement and polysiloxane, epoxy resin, phenolic resin etc., and cement main component is silicic acid
Salt or aluminate etc., polysiloxane, epoxy resin, phenolic resin etc. have hydroxyl or phenolic hydroxyl group, can occur with water strong
Aquation increase the viscosity of cement slurry, assign the good adhesivity of product and by the winding between strand.Separately
Outside, aquation also contributes to reducing the rheological property of cement slurry, increases water penetration.Hydroxypropyl acrylate has carbon carbon double
Key, hydroxyl isoreactivity functional group, acrylamide has carbon-carbon double bond, amide isoreactivity functional group, in the alkaline ring of hydrated cementitious
In border, the carbon-carbon double bond of the two is opened, and is polymerize, and amide can hydrolyze under alkaline condition generates carboxylic acid and amine, and then with
Hydroxyl reacts, and realizes copolymerization, grafting, further enhances above-mentioned effect.
The calcium hydroxide that reactive silica Si powder can be generated with hydrated cementitious occurs secondary reaction of hydration and generates aquation silicon
Sour calcium gel increases consistency, is conducive to the raising of the early strength and later period endurance quality of pervious concrete.
Gelatin is a kind of hydrophilic colloid of macromolecular, belongs to protein, can be with calcium ion, the aluminium in low alkali hydrated calcium silicate
Ion etc. generates cross-linking reaction, and specifically, protein and calcium ion, aluminium ion etc. react, to replace carboxyl in protein
With the interaction of amino, special bridged bond effect is formed, product strength is increased.
Cellulose ether, polyvinyl alcohol, pentaerythrite etc. have many hydroxyls, cooperate with polysiloxane and increase cement slurry
Viscosity, reduce the rheological property of cement slurry, increase water penetration, this is because the strong hydration work occurred with hydroxyl and water
With providing cellulose ether, polyvinyl alcohol, pentaerythrite, polysiloxane of hydroxyl source etc., remaining structure group and silicic acid
Salt or aluminate etc. (main component of cement) are closely wound, and increase system viscosity.2,4- pentadienoic acid zinc salt chain structure
Crosslinked action, with carbon-carbon double bond and carbonyl, carbon-carbon double bond has supplied for electronic effect, and carbonyl has electron attraction, fiber
Plain ether, polyvinyl alcohol, pentaerythrite hydroxyl there is electron attraction, in the ehter bond, polysiloxane in cellulose ether
Alkoxy has supplied for electronic effect, and carbonyl and ehter bond, alkoxy etc. attract each other, and carbon-carbon double bond attracts each other with hydroxyl, promotes
The crosslinking of polymer, winding, can further strengthen above-mentioned effect.On the other hand, epoxy resin can be enhanced in pentaerythrite
Deng mobility, being conducive to gained cementing agent penetrates into body structure surface fine crack and gap, enhances cementation interface intensity.
When cement setting hardens volume expansion can occur for hydrated calcium aluminate sulfate, so that compensating contraction generates prestressing force.It is even
The use of connection agent is conducive to change interfacial property, increases cohesive force, improves adhesion strength.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
The present invention is further detailed explanation below.
Specific embodiment
The embodiment of the present invention is described in detail below, but the present invention can be limited and be covered according to claim
Multitude of different ways implement.
Embodiment 1:
A kind of high osmosis pervious concrete cementing agent, in parts by weight, comprising: 100 parts of magnesium phosphate cement, poly-organosilicon
15 parts of oxygen alkane, 25 parts of epoxy resin, 12 parts of phenolic resin, 13 parts of hydroxypropyl acrylate, 3 parts of acrylamide, 8 parts of cellulose ether,
6 parts of reactive silica Si powder, 3 parts of gelatin, 8 parts of polyvinyl alcohol, 6 parts of pentaerythrite, 4 parts of hydrated calcium aluminate sulfate, calcium carbonate is brilliant
Must be 10 parts, 3 parts of neopelex, 2,4- 1 part of pentadienoic acid zinc salts, 3 parts of coupling agent, 4 parts of defoaming agent, 45 parts of water.
Wherein, 2,4- pentadienoic acid zinc salt is prepared by the following method to obtain: 2,4- pentadienoic acid and quality is dense
The sodium hydroxide solution of degree 12% is uniformly mixed, so that pH=8, is added the zinc nitrate solution of mass concentration 10%, is stirred to react
30 minutes, filter, washing, drying to get；The molar ratio of contained zinc nitrate is 1:1 in 2,4- pentadienoic acid and zinc nitrate solution.
Wherein, it is washed with deionized 2 times.The condition of drying are as follows: 125 DEG C dry 30 minutes.
Coupling agent is Silane coupling agent KH550.Defoaming agent is polyoxyethylene polyoxy propyl alcohol amidogen ether.
A kind of preparation process of above-mentioned high osmosis pervious concrete cementing agent, the specific steps are as follows:
(1) first the magnesium phosphate cement of formula ratio, reactive silica Si powder, hydrated calcium aluminate sulfate are uniformly mixed, are obtained
Mixed powder, it is spare；
(2) then by the gelatin of formula ratio, polyvinyl alcohol, hydroxypropyl acrylate, acrylamide, cellulose ether, Ji Wusi
Alcohol, neopelex are soluble in water, obtain mixed liquor, spare；
(3) polysiloxane of formula ratio, epoxy resin, phenolic resin are kneaded again, obtain compounded resin, it is spare；
(4) finally compounded resin obtained by mixed powder obtained by step (1) and step (3) is added in truck mixer, is stirred
It mixes 2 minutes, then sequentially adds calcium carbonate crystal whisker, 2,4- pentadienoic acid zinc salt, coupling agent, defoaming agent and the step of formula ratio
(2) gained mixed liquor stirs 5~6 minutes to get the cementing agent.
It in step (1), is realized and is mixed using high-speed mixer, mixing temperature is 17 DEG C, and incorporation time is 3 minutes.
The specific method of step (2) is: first gelatin and polyvinyl alcohol being dissolved in boiling water, cooled to room temperature (25
DEG C), hydroxypropyl acrylate, acrylamide, cellulose ether, pentaerythrite, neopelex is then added, stirs to complete
Fully dissolved.
In step (3), is realized and be kneaded using mixer, process conditions are as follows: 35 DEG C of melting temperature, banbury rotating speed 70
Rev/min, mixing time is 5 minutes.
Embodiment 2:
A kind of high osmosis pervious concrete cementing agent, in parts by weight, comprising: 100 parts of magnesium phosphate cement, poly-organosilicon
20 parts of oxygen alkane, 35 parts of epoxy resin, 15 parts of phenolic resin, 18 parts of hydroxypropyl acrylate, 6 parts of acrylamide, 10 parts of cellulose ether,
8 parts of reactive silica Si powder, 4 parts of gelatin, 10 parts of polyvinyl alcohol, 9 parts of pentaerythrite, 7 parts of hydrated calcium aluminate sulfate, calcium carbonate is brilliant
Must be 12 parts, 4 parts of neopelex, 2,4- 2 parts of pentadienoic acid zinc salts, 4 parts of coupling agent, 5 parts of defoaming agent, 55 parts of water.
Wherein, 2,4- pentadienoic acid zinc salt is prepared by the following method to obtain: 2,4- pentadienoic acid and quality is dense
The sodium hydroxide solution of degree 12% is uniformly mixed, so that pH=10, is added the zinc nitrate solution of mass concentration 10%, is stirred to react
40 minutes, filter, washing, drying to get；The molar ratio of contained zinc nitrate is 1 in 2,4- pentadienoic acid and zinc nitrate solution:
1.2.Wherein, it is washed with deionized 3 times.The condition of drying are as follows: 140 DEG C dry 60 minutes.
Coupling agent is silane coupling agent KH792.Defoaming agent is dimethyl silicone polymer.
A kind of preparation process of above-mentioned high osmosis pervious concrete cementing agent, the specific steps are as follows:
(1) first the magnesium phosphate cement of formula ratio, reactive silica Si powder, hydrated calcium aluminate sulfate are uniformly mixed, are obtained
Mixed powder, it is spare；
(2) then by the gelatin of formula ratio, polyvinyl alcohol, hydroxypropyl acrylate, acrylamide, cellulose ether, Ji Wusi
Alcohol, neopelex are soluble in water, obtain mixed liquor, spare；
(3) polysiloxane of formula ratio, epoxy resin, phenolic resin are kneaded again, obtain compounded resin, it is spare；
(4) finally compounded resin obtained by mixed powder obtained by step (1) and step (3) is added in truck mixer, is stirred
It mixes 3 minutes, then sequentially adds calcium carbonate crystal whisker, 2,4- pentadienoic acid zinc salt, coupling agent, defoaming agent and the step of formula ratio
(2) gained mixed liquor stirs 6 minutes to get the cementing agent.
It in step (1), is realized and is mixed using high-speed mixer, mixing temperature is 19 DEG C, and incorporation time is 4 minutes.
The specific method of step (2) is: first gelatin and polyvinyl alcohol being dissolved in boiling water, cooled to room temperature (25
DEG C), hydroxypropyl acrylate, acrylamide, cellulose ether, pentaerythrite, neopelex is then added, stirs to complete
Fully dissolved.
In step (3), is realized and be kneaded using mixer, process conditions are as follows: 40 DEG C of melting temperature, banbury rotating speed 80
Rev/min, mixing time is 8 minutes.
Embodiment 3:
A kind of high osmosis pervious concrete cementing agent, in parts by weight, comprising: 100 parts of magnesium phosphate cement, poly-organosilicon
15 parts of oxygen alkane, 35 parts of epoxy resin, 12 parts of phenolic resin, 18 parts of hydroxypropyl acrylate, 3 parts of acrylamide, 10 parts of cellulose ether,
6 parts of reactive silica Si powder, 3 parts of gelatin, 10 parts of polyvinyl alcohol, 6 parts of pentaerythrite, 7 parts of hydrated calcium aluminate sulfate, calcium carbonate is brilliant
Must be 10 parts, 4 parts of neopelex, 2,4- 1 part of pentadienoic acid zinc salts, 4 parts of coupling agent, 4 parts of defoaming agent, 55 parts of water.
Wherein, the calcium carbonate crystal whisker carries out organically-modified, and specific method is: calcium carbonate crystal whisker is immersed polyethylene glycol
In 400,3 hours are stood, filtering is then immersed in polyglycerol polyricinoleate, supersonic oscillations 30 minutes, is filtered, drying, i.e.,
?.Calcium carbonate crystal whisker, polyethylene glycol 400, polyglycerol ricinoleate mass ratio be 1:8:10.
2,4- pentadienoic acid zinc salt is prepared by the following method to obtain: by 2,4- pentadienoic acid and mass concentration 12%
Sodium hydroxide solution be uniformly mixed so that pH=8, the zinc nitrate solution of mass concentration 10% is added, is stirred to react 40 minutes,
Filtering, washing, drying to get；The molar ratio of contained zinc nitrate is 1:1 in 2,4- pentadienoic acid and zinc nitrate solution.Wherein, it uses
Deionized water is washed 3 times.The condition of drying are as follows: 125 DEG C dry 60 minutes.
Coupling agent is silane coupling agent DL171.Defoaming agent is silicone emulsion.
A kind of preparation process of above-mentioned high osmosis pervious concrete cementing agent, the specific steps are as follows:
(1) first the magnesium phosphate cement of formula ratio, reactive silica Si powder, hydrated calcium aluminate sulfate are uniformly mixed, are obtained
Mixed powder, it is spare；
(2) then by the gelatin of formula ratio, polyvinyl alcohol, hydroxypropyl acrylate, acrylamide, cellulose ether, Ji Wusi
Alcohol, neopelex are soluble in water, obtain mixed liquor, spare；
(3) polysiloxane of formula ratio, epoxy resin, phenolic resin are kneaded again, obtain compounded resin, it is spare；
(4) finally compounded resin obtained by mixed powder obtained by step (1) and step (3) is added in truck mixer, is stirred
It mixes 2 minutes, then sequentially adds calcium carbonate crystal whisker, 2,4- pentadienoic acid zinc salt, coupling agent, defoaming agent and the step of formula ratio
(2) gained mixed liquor stirs 6 minutes to get the cementing agent.
It in step (1), is realized and is mixed using high-speed mixer, mixing temperature is 17 DEG C, and incorporation time is 4 minutes.
The specific method of step (2) is: first gelatin and polyvinyl alcohol being dissolved in boiling water, cooled to room temperature (25
DEG C), hydroxypropyl acrylate, acrylamide, cellulose ether, pentaerythrite, neopelex is then added, stirs to complete
Fully dissolved.
In step (3), is realized and be kneaded using mixer, process conditions are as follows: 35 DEG C of melting temperature, banbury rotating speed 80
Rev/min, mixing time is 5 minutes.
Embodiment 4:
A kind of high osmosis pervious concrete cementing agent, in parts by weight, comprising: 100 parts of magnesium phosphate cement, poly-organosilicon
20 parts of oxygen alkane, 25 parts of epoxy resin, 15 parts of phenolic resin, 13 parts of hydroxypropyl acrylate, 6 parts of acrylamide, 8 parts of cellulose ether,
8 parts of reactive silica Si powder, 4 parts of gelatin, 8 parts of polyvinyl alcohol, 9 parts of pentaerythrite, 4 parts of hydrated calcium aluminate sulfate, calcium carbonate is brilliant
Must be 12 parts, 3 parts of neopelex, 2,4- 2 parts of pentadienoic acid zinc salts, 3 parts of coupling agent, 5 parts of defoaming agent, 45 parts of water.
Wherein, the calcium carbonate crystal whisker carries out organically-modified, and specific method is: calcium carbonate crystal whisker is immersed polyethylene glycol
In 400,4 hours are stood, filtering is then immersed in polyglycerol polyricinoleate, supersonic oscillations 20 minutes, is filtered, drying, i.e.,
?.Calcium carbonate crystal whisker, polyethylene glycol 400, polyglycerol ricinoleate mass ratio be 1:10:8.
2,4- pentadienoic acid zinc salt is prepared by the following method to obtain: by 2,4- pentadienoic acid and mass concentration 12%
Sodium hydroxide solution be uniformly mixed so that pH=10, the zinc nitrate solution of mass concentration 10% is added, is stirred to react 30 points
Clock, filter, washing, drying to get；The molar ratio of contained zinc nitrate is 1:1.2 in 2,4- pentadienoic acid and zinc nitrate solution.Its
In, it is washed with deionized 2 times.The condition of drying are as follows: 140 DEG C dry 30 minutes.
Coupling agent is Silane coupling agent KH550.Defoaming agent is polyoxyethylene polyoxy propyl alcohol amidogen ether.
A kind of preparation process of above-mentioned high osmosis pervious concrete cementing agent, the specific steps are as follows:
(1) first the magnesium phosphate cement of formula ratio, reactive silica Si powder, hydrated calcium aluminate sulfate are uniformly mixed, are obtained
Mixed powder, it is spare；
(2) then by the gelatin of formula ratio, polyvinyl alcohol, hydroxypropyl acrylate, acrylamide, cellulose ether, Ji Wusi
Alcohol, neopelex are soluble in water, obtain mixed liquor, spare；
(3) polysiloxane of formula ratio, epoxy resin, phenolic resin are kneaded again, obtain compounded resin, it is spare；
(4) finally compounded resin obtained by mixed powder obtained by step (1) and step (3) is added in truck mixer, is stirred
It mixes 3 minutes, then sequentially adds calcium carbonate crystal whisker, 2,4- pentadienoic acid zinc salt, coupling agent, defoaming agent and the step of formula ratio
(2) gained mixed liquor stirs 5 minutes to get the cementing agent.
It in step (1), is realized and is mixed using high-speed mixer, mixing temperature is 19 DEG C, and incorporation time is 3 minutes.
The specific method of step (2) is: first gelatin and polyvinyl alcohol being dissolved in boiling water, cooled to room temperature (25
DEG C), hydroxypropyl acrylate, acrylamide, cellulose ether, pentaerythrite, neopelex is then added, stirs to complete
Fully dissolved.
In step (3), is realized and be kneaded using mixer, process conditions are as follows: 40 DEG C of melting temperature, banbury rotating speed 70
Rev/min, mixing time is 8 minutes.
Embodiment 5:
A kind of high osmosis pervious concrete cementing agent, in parts by weight, comprising: 100 parts of magnesium phosphate cement, poly-organosilicon
18 parts of oxygen alkane, 30 parts of epoxy resin, 14 parts of phenolic resin, 15 parts of hydroxypropyl acrylate, 4 parts of acrylamide, 9 parts of cellulose ether,
7 parts of reactive silica Si powder, 3 parts of gelatin, 9 parts of polyvinyl alcohol, 7 parts of pentaerythrite, 6 parts of hydrated calcium aluminate sulfate, calcium carbonate is brilliant
Must be 11 parts, 3 parts of neopelex, 2,4- 2 parts of pentadienoic acid zinc salts, 3 parts of coupling agent, 5 parts of defoaming agent, 50 parts of water.
Wherein, the calcium carbonate crystal whisker carries out organically-modified, and specific method is: calcium carbonate crystal whisker is immersed polyethylene glycol
In 400,3 hours are stood, filtering is then immersed in polyglycerol polyricinoleate, supersonic oscillations 25 minutes, is filtered, drying, i.e.,
?.Calcium carbonate crystal whisker, polyethylene glycol 400, polyglycerol ricinoleate mass ratio be 1:9:9.
2,4- pentadienoic acid zinc salt is prepared by the following method to obtain: by 2,4- pentadienoic acid and mass concentration 12%
Sodium hydroxide solution be uniformly mixed so that pH=9, the zinc nitrate solution of mass concentration 10% is added, is stirred to react 35 minutes,
Filtering, washing, drying to get；The molar ratio of contained zinc nitrate is 1:1.1 in 2,4- pentadienoic acid and zinc nitrate solution.Wherein,
It is washed with deionized 3 times.The condition of drying are as follows: 130 DEG C dry 45 minutes.
Coupling agent is silane coupling agent KH792.Defoaming agent is dimethyl silicone polymer.
A kind of preparation process of above-mentioned high osmosis pervious concrete cementing agent, the specific steps are as follows:
(1) first the magnesium phosphate cement of formula ratio, reactive silica Si powder, hydrated calcium aluminate sulfate are uniformly mixed, are obtained
Mixed powder, it is spare；
(2) then by the gelatin of formula ratio, polyvinyl alcohol, hydroxypropyl acrylate, acrylamide, cellulose ether, Ji Wusi
Alcohol, neopelex are soluble in water, obtain mixed liquor, spare；
(3) polysiloxane of formula ratio, epoxy resin, phenolic resin are kneaded again, obtain compounded resin, it is spare；
(4) finally compounded resin obtained by mixed powder obtained by step (1) and step (3) is added in truck mixer, is stirred
It mixes 3 minutes, then sequentially adds calcium carbonate crystal whisker, 2,4- pentadienoic acid zinc salt, coupling agent, defoaming agent and the step of formula ratio
(2) gained mixed liquor stirs 5 minutes to get the cementing agent.
It in step (1), is realized and is mixed using high-speed mixer, mixing temperature is 18 DEG C, and incorporation time is 3 minutes.
The specific method of step (2) is: first gelatin and polyvinyl alcohol being dissolved in boiling water, cooled to room temperature (25
DEG C), hydroxypropyl acrylate, acrylamide, cellulose ether, pentaerythrite, neopelex is then added, stirs to complete
Fully dissolved.
In step (3), is realized and be kneaded using mixer, process conditions are as follows: 38 DEG C of melting temperature, banbury rotating speed 80
Rev/min, mixing time is 7 minutes.
Comparative example 1
Polysiloxane is omitted, remaining is the same as embodiment 1.
Comparative example 2
Epoxy resin is omitted, remaining is the same as embodiment 1.
Comparative example 3
Phenolic resin is omitted, remaining is the same as embodiment 1.
Comparative example 4
Hydroxypropyl acrylate and acrylamide are omitted, remaining is the same as embodiment 1.
Comparative example 5
Cellulose ether is omitted, remaining is the same as embodiment 1.
Comparative example 6
Reactive silica Si powder is omitted, remaining is the same as embodiment 1.
Comparative example 7
Gelatin is omitted, remaining is the same as embodiment 1.
Comparative example 8
Polyvinyl alcohol is omitted, remaining is the same as embodiment 1.
Comparative example 9
Pentaerythrite is omitted, remaining is the same as embodiment 1.
Comparative example 10
Hydrated calcium aluminate sulfate is omitted, remaining is the same as embodiment 1.
Comparative example 11
Calcium carbonate crystal whisker is omitted, remaining is the same as embodiment 1.
Comparative example 12
2,4- pentadienoic acid zinc salt is omitted, remaining is the same as embodiment 1.
Test example
The cementing agent of Examples 1 to 5 or comparative example 1~12 is added in concrete with 0.3% weight accounting respectively,
Then the water of 0.07 times of weight concrete is added, is uniformly mixed, solidification, the properties of detection gained concrete the results are shown in Table
1。
1. the performance test results of table
As shown in Table 1, gained concrete has excellent compression strength and splendid after the cementing agent incorporation of Examples 1 to 5
Water penetration, wherein embodiment 1 and embodiment 2 do not carry out calcium carbonate crystal whisker organically-modified, and compression strength and water penetration are omited
Difference.Comparative example 1 omits polysiloxane, and comparative example 2 omits epoxy resin, and comparative example 3 omits phenolic resin, and comparative example 4 is omited
Hydroxypropyl acrylate and acrylamide are removed, comparative example 5 omits cellulose ether, and comparative example 6 omits reactive silica Si powder, comparison
Example 7 omits gelatin, and comparative example 8 omits polyvinyl alcohol, and comparative example 9 omits pentaerythrite, and comparative example 10 omits hydrated calcium aluminate sulfate,
Comparative example 11 omits calcium carbonate crystal whisker, and comparative example 12 omits 2,4- pentadienoic acid zinc salt, the compression strength and water penetration of concrete
It is obvious poor.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high osmosis pervious concrete cementing agent, which is characterized in that in parts by weight, comprising: magnesium phosphate cement 100
Part, 15~20 parts of polysiloxane, 25~35 parts of epoxy resin, 12~15 parts of phenolic resin, hydroxypropyl acrylate 13~18
Part, 3~6 parts of acrylamide, 8~10 parts of cellulose ether, 6~8 parts of reactive silica Si powder, 3~4 parts of gelatin, polyvinyl alcohol 8
~10 parts, 6~9 parts of pentaerythrite, 4~7 parts of hydrated calcium aluminate sulfate, 10~12 parts of calcium carbonate crystal whisker, neopelex 3
~4 parts, 2,4- 1~2 part of pentadienoic acid zinc salts, 3~4 parts of coupling agent, 4~5 parts of defoaming agent, 45~55 parts of water.
2. a kind of high osmosis pervious concrete cementing agent according to claim 1, which is characterized in that the calcium carbonate is brilliant
Palpus progress is organically-modified, and specific method is: calcium carbonate crystal whisker is immersed in polyethylene glycol 400, stands 3~4 hours, filtering, so
Afterwards immerse polyglycerol polyricinoleate in, supersonic oscillations 20~30 minutes, filtering, drying to get.
3. a kind of high osmosis pervious concrete cementing agent according to claim 1, which is characterized in that 2, the 4- penta 2
Olefin(e) acid zinc salt is prepared by the following method to obtain: 2,4- pentadienoic acid and the sodium hydroxide solution of mass concentration 12% are mixed
It closes uniformly, so that pH=8~10, are added the zinc nitrate solution of mass concentration 10%, are stirred to react 30~40 minutes, filters, wash
Wash, drying to get；The molar ratio of contained zinc nitrate is 1:1~1.2 in 2,4- pentadienoic acid and zinc nitrate solution.
4. a kind of high osmosis pervious concrete cementing agent according to claim 1, which is characterized in that the coupling agent choosing
From any one of Silane coupling agent KH550, KH792 or DL171.
5. a kind of high osmosis pervious concrete cementing agent according to claim 1, which is characterized in that the defoaming agent choosing
Any one of selfpolyoxyethylene polyoxy propyl alcohol amidogen ether, dimethyl silicone polymer or silicone emulsion.
6. a kind of preparation process of high osmosis pervious concrete cementing agent, feature described in any one of Claims 1 to 5 exist
In, the specific steps are as follows:
(1) first the magnesium phosphate cement of formula ratio, reactive silica Si powder, hydrated calcium aluminate sulfate are uniformly mixed, are mixed
Powder, it is spare；
(2) then by the gelatin of formula ratio, polyvinyl alcohol, hydroxypropyl acrylate, acrylamide, cellulose ether, pentaerythrite, ten
Dialkyl benzene sulfonic acids sodium is soluble in water, obtains mixed liquor, spare；
(3) polysiloxane of formula ratio, epoxy resin, phenolic resin are kneaded again, obtain compounded resin, it is spare；
(4) finally compounded resin obtained by mixed powder obtained by step (1) and step (3) is added in truck mixer, stirring 2~
3 minutes, then sequentially add calcium carbonate crystal whisker, 2,4- pentadienoic acid zinc salt, coupling agent, defoaming agent and the step of formula ratio
(2) gained mixed liquor stirs 5~6 minutes to get the cementing agent.
7. preparation process according to claim 6, which is characterized in that in step (1), realized using high-speed mixer mixed
It closes, mixing temperature is 17~19 DEG C, and incorporation time is 3~4 minutes.
8. preparation process according to claim 6, which is characterized in that the specific method of step (2) is: first by gelatin and poly-
Vinyl alcohol is dissolved in boiling water, cooled to room temperature, and hydroxypropyl acrylate, acrylamide, cellulose ether, Ji Wusi is then added
Alcohol, neopelex, stirring is to being completely dissolved.
9. preparation process according to claim 6, which is characterized in that in step (3), is realized and be kneaded using mixer, work
Skill condition are as follows: 35~40 DEG C of melting temperature, banbury rotating speed is 70~80 revs/min, and mixing time is 5~8 minutes.
10. a kind of high osmosis pervious concrete cementing agent described in any one of Claims 1 to 5 is in the permeable coagulation of high osmosis
Application in soil.
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