CN106517864A - Epoxy resin emulsion modified waterproof penetration-resistant agent and concrete preparation method thereof - Google Patents
Epoxy resin emulsion modified waterproof penetration-resistant agent and concrete preparation method thereof Download PDFInfo
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- CN106517864A CN106517864A CN201610828038.7A CN201610828038A CN106517864A CN 106517864 A CN106517864 A CN 106517864A CN 201610828038 A CN201610828038 A CN 201610828038A CN 106517864 A CN106517864 A CN 106517864A
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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
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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
-
- 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
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
Abstract
The invention discloses waterproof penetration-resistant concrete and a preparation method thereof. In order to provide the waterproof penetration-resistant concrete, the invention provides the technical scheme as follows: the waterproof penetration-resistant concrete comprises the following materials in parts by weight: 60-120 parts of cement, 6-10 parts of a curing agent, 10-20 parts of an epoxy resin emulsion, 80-20 parts of layered silicate mineral, 4-10 parts of bentonite, 3-5 parts of alkali-resistant glass fiber, 0.2-0.4 part of polyoxyethylene, 0.5-1 part of an air entraining agent, 20-60 parts of porous granule aggregate and 0.2-1.2 parts of a water-reducing retarder. The waterproof penetration-resistant concrete has the beneficial effects that the cement starts cross-linking and curing in an early stage of hydration due to modification and activation of the epoxy resin emulsion; the water resistance, the penetration resistance and the bending resistance of the concrete are greatly improved; compared with the ordinary cement, the concrete has low density, low mass, lower heat conductivity coefficient and high binding capacity; the water resistance and the penetration resistance properties of the concrete are improved; meanwhile, the concrete has high heat insulation, water retention, water resistance, flame resistance and environment-friendly properties.
Description
Technical field
The present invention relates to a kind of concrete, specifically, it be related to a kind of epoxy emulsion modified waterproof anti-permeability agent and
Using epoxy resin latex and water proof anti-seepage concrete made by selectivity constructing method.
Background technology
With building and the fast development of building materials scientific and technical innovation, diversification is presented to the market demand of concrete, to aim at
The market demand, promotion go production capacity, implement " supply side " development pattern, are retaining different type concrete performance standard and function side
To while, by personalized selectivity construction preparation technology, optimised coagulation earth process index, lift quality, show especially urgent.
Selectivity construction is, based on different building construction project technical requirements, according to concrete performance standard, the compound recipe of concrete to be matched somebody with somebody
Flexibility load is carried out than modified structure and technique, plus-minus is with " Shi Qifa and not its side of mud ".Concrete is referred to by Binder Materials
By the general designation of cementing integral engineered composite material of gathering materials.Concrete is porous there is aggregate in not all space in itself
With solid filler wherein.Can produce compared with concrete dynamic modulus in cement Jing water mixing mixed processes.It also occur that big in coagulation whipping process
Amount bubble.Although concrete manufacturing industry selects high-quality aggregate, cement is with appropriate proportioning batch mixing mix, concrete preparation technology institute
The composite structure space of generation cannot still be wholly absent evades, and ultimately causes concrete cross-linked structure and destroys to form dry and cracked infiltration.
For reaching waterproof impervious characteristic, typically will add impervious agent (additive) in concrete, improve concrete
Self waterproofing and anti-permeability performance.The alternative sand mixed concrete of impervious agent, in impervious and chemistry of concrete synthetic reaction process,
The atomic structure solidification crosslinking of macromolecular compound in its main component.The modified active thing of epoxy resin latex is levied, in cement
The early stage of aquation begins to be crosslinked and is solidified, and controls the curing reaction of environment resin by firming agent, makes coagulating cement
Soil forms the structure of epoxy network intercalation shape, the multidirectional multidimensional chemical modification feature that the structure is presented, and makes cement have hydrophobicity
Compared with normal concrete, with low-density low quality, less heat conductivity, binding ability are strong, are difficult to shrink dry and cracked.Stratiform
Body structure surface is fine and smooth, and intensity preferably, substantially increases the bend resistance intensity of concrete.Waterproof, seepage control thoroughly, and has preferable
Heat-insulated moisturizing waterproof flame retardant environmental protection performance.
The content of the invention
For the flaw in prior art and deficiency, improve existing process, there is provided a kind of waterproof impervious characteristic is good
Epoxy emulsion modified waterproof anti-permeability agent, and provide one kind make water proof anti-seepage concrete using above-mentioned waterproof anti-permeability agent.
Described impervious agent includes the material of following components by weight percent：6～10 parts of firming agent：Epoxy resin latex 10～20
Part：4～10 parts of bentonite：3～5 parts of alkali-resistant glass fibre：0.2～0.4 part of polyethylene glycol oxide：0.5～1 part of air entraining agent：Porous
20～60 parts of granulated aggregate：0.2～1.2 part of water-reducing and set-retarding admixture；
Following weight portion material is included using the concrete of above-mentioned waterproof anti-permeability agent：
60～120 parts of cement：6～10 parts of firming agent：10～20 parts of epoxy resin latex：Layer silicate mineral 80～20
Part：4～10 parts of bentonite：3～5 parts of alkali-resistant glass fibre：0.2～0.4 part of polyethylene glycol oxide：0.5～1 part of air entraining agent：Porous
20～60 parts of granulated aggregate：0.2～1.2 part of water-reducing and set-retarding admixture.
The preparation method for stating water-reducing and set-retarding admixture is：The first step：With tapioca as raw material, 95% ethanol is dispersant, dense
Hydrochloric acid is hydrolyzed reaction for catalyst, and reaction temperature is 70 DEG C, and the response time is 8h；Second step：Using limit dextrin: N, N-
Dimethylformamide: sulfamic acid mass ratio be equal to 1: 2: 0.5,90 DEG C of reaction temperature, response time 1h.Tapioca, is wood
The powder of potato dehydrate after starch isolation.
Further, the firming agent is aminoethyl piperazine.
Further, layered silicate mineral is one or more in mica powder, Pulvis Talci and kaolinite stone powder
Mixture.Layer silicate mineral can form certain laminar structured in concrete, with preferable heat-insulated, fireproof
Ability, and the surface of layer structure is more fine and smooth, and anti crack performance is preferable, waterproof, seepage control；And in more huge destructive power
When, the outer layer of layer structure is damaged and does not interfere with internal performance, so as to have good protected effect.
Further, the air entraining agent is dodecylbenzene sodium sulfonate, myristyl benzene sulfonic acid sodium salt and cetyl benzene sulphur
The mixture of one or more in sour sodium.
Further, the porous particle aggregate adopts glass bead.The addition of porous particle aggregate can be in concrete
In be added into cavity structure, so as to mitigate the quality of concrete, with preferable sound-insulating and heat-insulating effect, and the structure of cavity can
There is adjustment space when temperature and humidity change during dilation to concrete, it is to avoid inside concrete stress concentration so as to
Destruction internal structure；And fenestral fabric is collectively forming with the epoxy resin of crosslinking curing, intensity is preferable.
Bentonite is the nonmetallic minerals with montmorillonite as main mineral constituent, during concrete use, if produced
Situations such as raw crack, bentonite can absorb the moisture entered from crack, expand, so as to have certain gap to make up
Effect, and bentonite can produce certain prestressing force in concrete after moisture is absorbed, so can be so that having due to shrinking
The tension of initiation is effective against, and is not in crack phenomenon.
Alkali-resistant glass fibre is the rib material of Concrete Structure, is 100% inorfil, in nonweight-bearing cement components
In be steel and asbestos ideal substitute.The characteristics of alkali-resistant glass fibre is that alkali resistance is good, is highly resistant to high-alkali in cement
The erosion of material, bond stress are big, and elastic modelling quantity, shock resistance, tension, bending strength are high, do not fire, freeze proof, resistance to temperature, humidity become
Change ability is strong, and cracking resistance, anti-permeability performance are remarkable, but in process, dispersibility of the glass fibre in concrete is not enough,
It is easily caused each position intensity different, performance is uneven, adds polyethylene glycol oxide, polyethylene glycol oxide to have larger at low concentrations
Viscosity, glass fibre can be fully dispersed when concrete mixes under the viscous effect of polyethylene oxide solutions, so as to carry
The overall performance of high concrete.
The main of air entraining agent includes rosin tree lipid, alkyl and alkylated aromatic sulfonic acid class, fatty alcohol sulfonate class, saponinss
And protein salt, oil sulphur hydrochloric acid etc..Air entraining agent during mixing and stirring can introduce air in concrete mix and be formed
A large amount of small, closings and stable bubble, the formation of bubble can improve the rupture strength and barrier performance of concrete, air entraining agent
Bubble can be formed at the emptying aperture of porous particle aggregate, so as to the bubble cavity inner wall for being formed is more stable firm, be difficult
Destruction, strengthens the intensity of concrete.
Second goal of the invention of the present invention is to provide a kind of preparation method of anti-cracking type high performance concrete：
A kind of anti-cracking type high performance concrete of the present invention, its preparation method is：
Step one：Porous particle aggregate, layer silicate mineral, water-reducing and set-retarding admixture, bentonite are added in cement, are stirred
After mixing 30～40 minutes, add air entraining agent to continue stirring 30～40 minutes, the compound of gained is divided into into 5 then:Two parts of 3 are mixed
Close material I and compound II；
Step 2：Will epoxy resin latex, alkali-resistant glass fibre and polyethylene glycol oxide add compound I in, stirring 30～
40 minutes；
Step 3：Firming agent is added in compound II, through 30～40 minutes be sufficiently stirred for；
Step 4：Compound I and compound II are mixed, then were sufficiently stirred for through 30～40 minutes, place into mould into
Type.
The beneficial effects of the present invention is：Epoxy emulsion modified activation begins to be handed in the getting up early of hydrated cementitious
Connection, solidification, make cement concrete form the structure of epoxy network intercalation shape, substantially increase the water proof anti-seepage bend resistance of concrete
, with low-density, low quality, less heat conductivity compared with ordinary cement, binding ability is strong for intensity, improves concrete and prevents
Water anti-permeability performance, and there is preferable heat-insulated, moisturizing, waterproof, fire-retardant and environmental protection performance.
Due to air entraining agent and the collective effect of lamellar structure at the EDGE CONTACT of concrete block, the border of concrete block can be with
Certain grafting is formed, the binding ability of concrete block is increased, during stress, is more prone to dispersion, it is in large-scale use, right
The overall performance of concrete has preferably raising.
Starch is present in nature in a large number, by the chemical modification to starch structure, produce with glucose long-chain
For hydrophobic group, hydroxyl and sulfonic group are hydrophilic group, and so as to reach the effect of slow setting diminishing, and the water-reducing and set-retarding admixture has
Preferable dispersion effect, dispersion that can be good in cement.
Specific embodiment
Embodiment one
Water-reducing and set-retarding admixture is prepared first, using following steps：The preparation method of described water-reducing and set-retarding admixture is：(1) with Maninot esculenta crantz.
Starch is raw material, and 95% ethanol is dispersant, and concentrated hydrochloric acid is hydrolyzed reaction for catalyst, and reaction temperature is 70 DEG C, during reaction
Between be 8h；(2) following material is added by weight：Limit dextrin: N,N-dimethylformamide: sulfamic acid mass ratio is equal to
1: 2: 0.5,90 DEG C of reaction temperature, response time 1h.
The material of following weight portion is weighed again：
Cement 6kg；
Mica powder 0.8kg；
Dodecylbenzene sodium sulfonate 0.03kg；
Bentonite 0.5kg；
Water-reducing and set-retarding admixture 0.3kg；
Glass bead 4kg；
Alkali-resistant glass fibre 0.36kg；
Polyethylene glycol oxide 0.03kg；
Epoxy resin latex 1.2kg；
Aminoethyl piperazine 0.5kg.
Step one：Porous particle aggregate, layer silicate mineral, water-reducing and set-retarding admixture, bentonite are added in cement, are stirred
After mixing 30 minutes, add dodecylbenzene sodium sulfonate to continue stirring 35. minutes, the compound of gained is divided into into 5 then:The two of 3
Part compound I and compound II；
Step 2：Epoxy resin latex, alkali-resistant glass fibre and polyethylene glycol oxide are added in compound I, 40 points are stirred
Clock；
Step 3：Aminoethyl piperazine is added in compound II, through 38 minutes be sufficiently stirred for；
Step 4：Compound I and compound II is mixed, then was sufficiently stirred for through 36 minutes, place into mould molding.
Obtained concrete in embodiment one,
Embodiment two：
Water-reducing and set-retarding admixture is prepared first, using following steps：The preparation method of described water-reducing and set-retarding admixture is：(1) with Maninot esculenta crantz.
Starch is raw material, and 95% ethanol is dispersant, and concentrated hydrochloric acid is hydrolyzed reaction for catalyst, and reaction temperature is 70 DEG C, during reaction
Between be 8h；(2) following material is added by weight：Limit dextrin: N,N-dimethylformamide: sulfamic acid mass ratio is equal to
1: 2: 0.5,90 DEG C of reaction temperature, response time 1h.
The material of following weight portion is weighed again：
Cement 8.0kg；
Mica powder 1.3kg；
Myristyl benzene sulfonic acid sodium salt 0.05kg；
Pulvis Talci 0.3kg；
Water-reducing and set-retarding admixture 0.02kg；
Glass bead 5kg；
Alkali-resistant glass fibre 0.3kg；
Polyethylene glycol oxide 0.05kg；
Epoxy resin latex 1kg；
Aminoethyl piperazine 0.3kg.
Step one：Porous particle aggregate, Pulvis Talci, water-reducing and set-retarding admixture, bentonite are added in cement, are stirred 30 minutes
Afterwards, add myristyl benzene sulfonic acid sodium salt to continue stirring 35. minutes, the compound of gained is divided into into 5 then:3 two parts of compound I
With compound II；
Step 2：Epoxy resin latex, alkali-resistant glass fibre and polyethylene glycol oxide are added in compound I, 40 points are stirred
Clock；
Step 3：Aminoethyl piperazine is added in compound II, through 38 minutes be sufficiently stirred for；
Step 4：Compound I and compound II is mixed, then was sufficiently stirred for through 36 minutes, place into mould molding.
Embodiment three
Water-reducing and set-retarding admixture is prepared first, using following steps：The preparation method of described water-reducing and set-retarding admixture is：(1) with Maninot esculenta crantz.
Starch is raw material, and 95% ethanol is dispersant, and concentrated hydrochloric acid is hydrolyzed reaction for catalyst, and reaction temperature is 70 DEG C, during reaction
Between be 8h；(2) following material is added by weight：Limit dextrin: N,N-dimethylformamide: sulfamic acid mass ratio is equal to
1: 2: 0.5,90 DEG C of reaction temperature, response time 1h.
The material of following weight portion is weighed again：
Cement 9kg；
Kaolinite stone powder 1.7kg；
Cetyl benzenesulfonic acid sodium 0.06kg；
Bentonite 0.6kg；
Water-reducing and set-retarding admixture 0.03kg；
Glass bead 4.5kg；
Alkali-resistant glass fibre 0.44kg；
Polyethylene glycol oxide 0.03kg；
Epoxy resin latex 2kg；
Aminoethyl piperazine 1kg.
Step one：Porous particle aggregate, kaolinite stone powder, water-reducing and set-retarding admixture, bentonite are added in cement, 35 points are stirred
Zhong Hou, adds cetyl benzenesulfonic acid sodium to continue stirring 40 minutes, the compound of gained is divided into 5 then:3 two parts of compounds
I and compound II；
Step 2：Epoxy resin latex, alkali-resistant glass fibre and polyethylene glycol oxide are added in compound I, 40 points are stirred
Clock；
Step 3：Aminoethyl piperazine is added in compound II, through 40 minutes be sufficiently stirred for；
Step 4：Compound I and compound II is mixed, then was sufficiently stirred for through 30 minutes, place into mould molding.
Example IV
Water-reducing and set-retarding admixture is prepared first, using following steps：The preparation method of described water-reducing and set-retarding admixture is：(1) with Maninot esculenta crantz.
Starch is raw material, and 95% ethanol is dispersant, and concentrated hydrochloric acid is hydrolyzed reaction for catalyst, and reaction temperature is 70 DEG C, during reaction
Between be 8h；(2) following material is added by weight：Limit dextrin: N,N-dimethylformamide: sulfamic acid mass ratio is equal to
1: 2: 0.5,90 DEG C of reaction temperature, response time 1h.
The material of following weight portion is weighed again：
Cement 10kg；
Weight compares 1:1 mica powder and Pulvis Talci 1.3kg；
Mass ratio 1:1 dodecylbenzene sodium sulfonate and cetyl benzenesulfonic acid sodium 0.05kg；
Bentonite 0.7kg；
Water-reducing and set-retarding admixture 0.08kg；
Glass bead 3.6kg；
Alkali-resistant glass fibre 0.32kg；
Polyethylene glycol oxide 0.03kg；
Epoxy resin latex 1.7kg；
Aminoethyl piperazine 0.8kg.
Step one：Porous particle aggregate, weight are compared into 1:1 mica powder and Pulvis Talci, water-reducing and set-retarding admixture, bentonite are added to
In cement, after stirring 40 minutes, mass ratio 1 is added:1 dodecylbenzene sodium sulfonate and cetyl benzenesulfonic acid sodium continue stirring
32 minutes, the compound of gained is divided into into 5 then:3 two parts of compound I and compound II；
Step 2：Epoxy resin latex, alkali-resistant glass fibre and polyethylene glycol oxide are added in compound I, 40 points are stirred
Clock；
Step 3：Aminoethyl piperazine is added in compound II, through 30 minutes be sufficiently stirred for；
Step 4：Compound I and compound II is mixed, then was sufficiently stirred for through 40 minutes, place into mould molding.
Embodiment five：
Water-reducing and set-retarding admixture is prepared first, using following steps：The preparation method of described water-reducing and set-retarding admixture is：(1) with Maninot esculenta crantz.
Starch is raw material, and 95% ethanol is dispersant, and concentrated hydrochloric acid is hydrolyzed reaction for catalyst, and reaction temperature is 70 DEG C, during reaction
Between be 8h；(2) following material is added by weight：Limit dextrin: N,N-dimethylformamide: sulfamic acid mass ratio is equal to
1: 2: 0.5,90 DEG C of reaction temperature, response time 1h.
The material of following weight portion is weighed again：
Cement 11kg；
Weight compares 1:1 Pulvis Talci and kaolinite stone powder 1.7kg；
Mass ratio 1:1 myristyl benzene sulfonic acid sodium salt and cetyl benzenesulfonic acid sodium 0.07kg；
Bentonite 1kg；
Water-reducing and set-retarding admixture 0.06kg；
Glass bead 5.0kg；
Alkali-resistant glass fibre 0.36kg；
Polyethylene glycol oxide 0.033g；
Epoxy resin latex 1.5kg；
Aminoethyl piperazine 0.71kg.
Step one：Porous particle aggregate, weight are compared into 1:1 Pulvis Talci and kaolinite stone powder, water-reducing and set-retarding admixture, bentonite add
Enter in cement, after stirring 40 minutes, add mass ratio 1:1 myristyl benzene sulfonic acid sodium salt and cetyl benzenesulfonic acid sodium continue
Then the compound of gained is divided into 5 by stirring 38 minutes:3 two parts of compound I and compound II；
Step 2：Epoxy resin latex, alkali-resistant glass fibre and polyethylene glycol oxide are added in compound I, 40 points are stirred
Clock；
Step 3：Aminoethyl piperazine is added in compound II, through 40 minutes be sufficiently stirred for；
Step 4：Compound I and compound II is mixed, then was sufficiently stirred for through 30 minutes, place into mould molding.
Jing is tested, and the middle agent on crack resistance of concrete consolidation pressure of above-described embodiment has in more than 2.2Mpa, and impermeability is good, it is adaptable to
The waterproof laying on the floor of toilet kitchen washing room.
Claims (6)
1. a kind of epoxy emulsion modified waterproof anti-permeability agent, it is characterised in that described impervious agent includes following components by weight percent
Material：6～10 parts of firming agent：10～20 parts of epoxy resin latex：4～10 parts of bentonite：3～5 parts of alkali-resistant glass fibre：It is poly-
0.2～0.4 part of ethylene oxide：0.5～1 part of air entraining agent：20～60 parts of porous particle aggregate：0.2～1.2 part of water-reducing and set-retarding admixture；
The preparation method of described water-reducing and set-retarding admixture is：(1) with tapioca as raw material, 95% ethanol be dispersant, concentrated hydrochloric acid
It is hydrolyzed reaction for catalyst, reaction temperature is 70 DEG C, and the response time is 8h；(2) following material is added by weight：Pole
Limit dextrin: DMF: sulfamic acid mass ratio be equal to 1: 2: 0.5,90 DEG C of reaction temperature, response time 1h.
2. epoxy emulsion modified waterproof anti-permeability agent as claimed in claim 1, it is characterised in that the firming agent is ammonia second
Base piperazine.
3. epoxy emulsion modified waterproof anti-permeability agent as claimed in claim 1, it is characterised in that described air entraining agent is ten
One or more of dialkyl benzene sulfonic acids sodium, myristyl benzene sulfonic acid sodium salt and cetyl benzenesulfonic acid sodium material.
4. the epoxy emulsion modified waterproof anti-permeability agent described in claim 1, it is characterised in that described porous particle aggregate
For glass bead.
5. a kind of preparation method of concrete containing epoxy emulsion modified waterproof anti-permeability agent, it is characterised in that described preparation
Method comprises the steps：
Step one：Porous particle aggregate, layer silicate mineral, water-reducing and set-retarding admixture, bentonite are proportionally added in cement,
After stirring 30～40 minutes, add air entraining agent to continue stirring 30～40 minutes, the compound of gained is divided into into 5 then:Two parts of 3
Compound I and compound II；
Step 2：Epoxy resin latex, alkali-resistant glass fibre and polyethylene glycol oxide are added in compound I, 30～40 points are stirred
Clock；
Step 3：Firming agent is added in compound II, through 30～40 minutes be sufficiently stirred for；
Step 4：Compound I and compound II respectively through step 2 and step 3 is mixed, then was filled through 30～40 minutes
Divide stirring, place into mould molding.
6. the preparation method of concrete of epoxy emulsion modified waterproof anti-permeability agent is contained as claimed in claim 5, and its feature exists
In described layer silicate mineral is one or more of mica powder, Pulvis Talci and kaolinite stone powder material.
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| CN107721244A (en) * | 2017-09-14 | 2018-02-23 | 成都博美实润科技有限公司 | A kind of concrete water-proof impervious agent |
| CN110258655A (en) * | 2017-12-29 | 2019-09-20 | 合肥神舟建筑集团有限公司 | A kind of waterproofing work sole plate infiltration repair process method |
| CN108046651A (en) * | 2018-02-02 | 2018-05-18 | 日照弗尔曼新材料科技有限公司 | A kind of concrete ultra-retarding agent |
| CN108046651B (en) * | 2018-02-02 | 2020-04-10 | 日照弗尔曼新材料科技有限公司 | Concrete super retarder |
| CN110282935A (en) * | 2019-08-01 | 2019-09-27 | 西安新意达建筑制品有限公司 | A kind of fiber reinforcement type concrete and preparation method thereof |
| CN110395955A (en) * | 2019-08-01 | 2019-11-01 | 西安新意达建筑制品有限公司 | A kind of impervious freeze thawing resistance self-compacting concrete and preparation method thereof |
| CN110395955B (en) * | 2019-08-01 | 2021-06-08 | 西安新意达建筑制品有限公司 | Anti-permeability and anti-freeze-thaw self-compacting concrete and preparation method thereof |
| CN110282935B (en) * | 2019-08-01 | 2021-09-24 | 西安新意达建筑制品有限公司 | Fiber-reinforced concrete and preparation method thereof |
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