CN104045291A - Cement concrete pavement patching material and preparation method thereof - Google Patents
Cement concrete pavement patching material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a cement concrete pavement patching material. The cement concrete pavement patching material consists of the following materials in percentage by weight: 15.6%-23.6% of portland cement, 15.6%-23.6% of sulfate aluminum cement, 6%-15% of ground calcium carbonate powder, 2.5%-7% of redispersible latex powder, 0.08%-1.8% of lithium carbonate, 0.7%-1.03% of fiber, 0.1%-0.22% of tartaric acid, 0.02%-0.06% of cellulose ether, 26.56%-59.04% of quartz sand, 0.08%-0.25% of a polycarboxylate water reducer, 0.08%-0.33% of an organic silicon antifoaming agent and 0.2%-0.55% of an organic silicon water repellent. The cement concrete pavement patching material disclosed by the invention is adopted, so that ultra-thin patching, ultra-strong compressive strength bonding strength and ultra-strong durability can be realized, and therefore, the damaged part of the cement pavement can be timely repaired without the need of closing traffic for a long time.
Description
Technical field
The present invention relates to cement pavement maintenance technology and Material Field, relate in particular to a kind of Cement Concrete Pavement Reconstruction material and preparation method thereof.
Background technology
The maintenance of road is all one of problem important in current road engineering field all the time, wherein a cement concrete pavement important pavement structure form in China's Road construction especially.But along with the growth of time, the disconnected plate of a lot of cement-concrete roads, cracking phenomena are very serious, and at cracking place, owing to being subject to rain erosion, pavement damage constantly increases, and the cost that excavates reconstruction is very high, therefore must repair impaired road surface.Traditional patching material has pitch or resin etc., but pitch fusing point is low, intensity is low, easily crisp frangible; Resin bonding power is not strong, easily comes off, and poor effect, and its set time is longer, and contraction, the swelling property of this bi-material and concrete material differ greatly, and all easily cause repairing failure.
Above-mentioned conventional repair material has obvious defect, is directed to this, in recent years, and the domestic various Cement Concrete Pavement Reconstruction materials such as polymer concrete, fibrous concrete that also in succession worked out.But the use range of these materials has very large limitation, various weather condition are required high, and and old concrete between consistency also inadequate, the add-on of polymkeric substance, fiber is larger simultaneously, cost is higher.
Summary of the invention
The present invention In view of the foregoing completes, object be to provide a kind of time of coagulation short, have good bonding strength and consistency with old concrete, firm durable, use range is wide, can adapt to many weather condition and the high Cement Concrete Pavement Reconstruction material of cost performance.
Particularly, the invention provides following content.
A kind of Cement Concrete Pavement Reconstruction material, this patching material contains 15.6%～23.6% silicate cement by percentage to the quality, 15.6%～23.6% aluminosulfate cement, 6%～15% coarse whiting stone flour, 2.5%～7% redispersable latex powder, 0.08%～1.8% Quilonum Retard, 0.7%～1.03% fiber, 0.1%～0.22% tartrate, 0.02%～0.06% ether of cellulose, 26.56%～59.04% quartz sand, 0.08%～0.25% polycarboxylate water-reducer, 0.08%～0.33% silicone antifoam agent, 0.2%～0.55% organosilicon moisture repellent.
Preferably, in Cement Concrete Pavement Reconstruction material of the present invention, described fiber can comprise polyvinyl alcohol fiber and carbon fiber, and the mass ratio of described polyvinyl alcohol fiber and described carbon fiber is 5:1.
Preferably, in Cement Concrete Pavement Reconstruction material of the present invention, described quartz sand comprises 10～20 object quartz sands, 20～40 object quartz sands and 40～70 object quartz sands.
Preferably, in Cement Concrete Pavement Reconstruction material of the present invention, described silicate cement is P II 52.5R type silicate cement.
Preferably, in Cement Concrete Pavement Reconstruction material of the present invention, described redispersable latex powder is re-dispersible latex powder of acrylic acid.
Preferably, in Cement Concrete Pavement Reconstruction material of the present invention, described silicate cement is P II 52.5R type silicate cement, its content is 19.6%, the content of described aluminosulfate cement is 19.6%, the content of described coarse whiting stone flour is 9.75%, described redispersable latex powder is re-dispersible latex powder of acrylic acid, its content is 5.6%, the content of described Quilonum Retard is 0.14%, the content of described fiber is 0.98%, the content of described ether of cellulose is 0.03%, the content of described quartz sand is 43.4%, the content of described polycarboxylate water-reducer is 0.13%, the content of described silicone antifoam agent is 0.28%, the content of described organosilicon moisture repellent is 0.35%, described tartaric content is 0.14%.
Preferably, in Cement Concrete Pavement Reconstruction material of the present invention, described quartz sand comprises 10～20 object quartz sands, 20～40 object quartz sands and 40～70 object quartz sands, the content of described 10～20 object quartz sands is 11.2%, the content of described 20～40 object quartz sands is 18.2%, and the content of described 40～70 object quartz sands is 14%.
Preferably, in Cement Concrete Pavement Reconstruction material of the present invention, described fiber package is containing polyvinyl alcohol fiber and carbon fiber, and the mass ratio of described polyvinyl alcohol fiber and described carbon fiber is 5:1.
The present invention also provides a kind of preparation method of Cement Concrete Pavement Reconstruction material, and the method comprises the steps:
1) take each raw material by the proportioning mode in aforementioned 1-8, get raw silicon acid salt cement, sulfate cement and fiber stirrer and stir 10～15 minutes;
2) by above-mentioned 1) in obtained mixture and coarse whiting stone flour, quartz sand, polycarboxylate water-reducer, silicone antifoam agent, organosilicon moisture repellent, redispersable latex powder, tartrate, Quilonum Retard and ether of cellulose put into stirrer and stir 30～45 minutes;
3) by the above-mentioned material package packing making.
Patching material of the present invention, is a kind of cementability both with macromolecular material, has again the new concrete repair material of inorganic materials weather resistance; Its resistance to compression, impervious, anticorrosive, solidifies rapidly, and cohesive force is strong; There are good water retention property, wear, alkali resistant.Meanwhile, patching material of the present invention can be specially repaired in time for the pitted skin of cement concrete pavement, hollowing, peeling, shelling, crack, leakage muscle, breakage etc., and it is easy and simple to handle while using, nontoxic, is a kind of environmentfriendly products.In addition, patching material of the present invention is to the repairing on a lot of road surfaces with permanent, and easy construction, without excavation, has saved a large amount of construction costs and materials cost, stops and has delayed the diffusion of road disease and spread, and has extended Road Service Life.
Adopt patching material of the present invention to repair damaged cement concrete pavement, because this patching material has suitable time of coagulation, road surface after construction just can be opened use in construction after 24 hours, without long close traffic, and it has good bonding strength with old concrete, only need to repair very thin one deck and just can reach repair efficiency, the thinnest part can accomplish to be coated with 3mm and do not come off, not cracked, can realize ultra-thin repairing.Further, this patching material and old concrete have good consistency, approach again with former cement concrete pavement color, also can adjust material color according to former road surface color, reach better color consistency, after therefore repairing, have good aesthetics.Meanwhile, patching material of the present invention has setting rate and higher early strength faster, and its later strength is undamped, constantly rises on the contrary, can accomplish disposable elimination to the breakage of cement pavement; Its coefficient of linear expansion and former pavement concrete approach, and in the time that cement concrete is flexible, repair material can't be pulled, even if therefore also there will not be fragmentation and obscission at a high speed and under the driving states of high pressure.
Embodiment
To the technical scheme in the embodiment of the present invention be clearly and completely described below.The present invention is not subject to any restriction of following embodiment, can suitably change and implemented in the scope of the object of the invention.
Below first the contained each composition of patching material of the present invention is specifically described.
< silicate cement >
Silicate cement, is referred to as portland cement in the world, is a kind of hydraulic cementing materials, and its main component is Calucium Silicate powder.
Silicate cement divides two types, not admixture mixing material be called I type silicate cement, code name P I; What admixture was no more than the Wingdale of cement quality 5% or granulated blast-furnace slag mixing material is called II type silicate cement, code name P II.The strength grade of silicate cement is divided into 42.5,42.5R, 52.5,52.5R, 62.5, six grades of 62.5R.The present invention preferably adopts the PII52.5R type in silicate cement, the cement that in II type silicate cement, intensity is 52.5R.
The fast solidifying of silicate cement, early strength and later strength are high, frost resistance is good, and wear resistance is good, but corrosion-resistant, poor heat resistance, therefore need some other materials'use of arranging in pairs or groups, the content of mesosilicic acid salt cement of the present invention is preferably by percentage to the quality, 15.6%～23.6% content range, adopt this content range, can provide certain bending and compressive strength for patching material of the present invention.
< aluminosulfate cement >
Aluminosulfate cement is mainly the novel concrete of the composition taking anhydrous calcium sulphoaluminate and Dicalcium Phosphate (Feed Grade) as essential mineral, and it has higher early strength, and has ever-increasing later strength.Meanwhile, it has the time of coagulation that meets service requirements, and anti-freezing property is high, and corrosion resisting property, anti-permeability performance are strong, and weather resistance is better.
Aluminosulfate cement mainly contains 5 kinds such as quick hardening sulphoaluminate cement, high-strength aluminosulfate cement, expansion aluminosulfate cement, self-stress aluminum sulfate cement, low-alkalinity sulphoaluminate cement, there is no particular restriction for the present invention's aluminosulfate cement used, and high-strength aluminosulfate cement, quick hardening sulphoaluminate cement etc. all can.In addition, the content range of aluminosulfate cement used in the present invention is preferably 15.6%～23.6%, adopts this content range, can provide certain getting up early bending and compressive strength for patching material of the present invention.
< coarse whiting stone flour >
Coarse whiting stone flour be with the calcite of high-quality be the white powder that Raw material processing forms, its main component is CaCO
3, coarse whiting stone flour has that whiteness is high, purity good, form and aspect are soft and the feature such as chemical composition stability, and it,, as stopping composition, by making its content range in 6%～15% scope, can improve workability and the application property of material of the present invention in the present invention.
< quartz sand >
Quartz sand is the quartz particles that quartzite processes through fragmentation, and quartzite is a kind of nonmetallic mineral, is a kind of mineral of hard, wear-resisting, stable chemical performance, and its essential mineral composition is SiO
2, the color of quartz sand is oyster white or colourless translucent.
In the present invention, preferably adopt the quartz sand of three kinds of order numbers, be 10-20 object quartz sand, 20-40 object quartz sand, 40-70 object quartz sand, its content range is preferably respectively 6.85%～15.24%, 13.14%～25.01%, 6.57%～18.79%, the collocation of the quartz sand by these three kinds of order numbers is used, and can bring wear resistance and ultimate compression strength preferably for material of the present invention.
< redispersable latex powder >
Redispersable latex powder is a kind of water-soluble redispersible powder, is multipolymer, vinyl acetate between to for plastic/tertiary monocarboxylic acid ethylene copolymer of ethylene/vinyl acetate, and acrylic copolymer etc., using polyvinyl alcohol as protective colloid.Redispersable latex powder has high viscosifying power and unique performance, as: water resisting property, application property and thermal insulation etc., also there is extremely outstanding cohesive strength, can improve the flexible of mortar and have the open hour of length, can give mortar good alkali resistance, improve adhesivity, binding property, folding strength, water-repellancy, plasticity-, wear resisting property and the application property of mortar.
In the present invention, preferably adopt re-dispersible latex powder of acrylic acid, its content range preferably 2.5%～7%, by making the content of redispersable latex powder in this content range, can increase adhibit quality, toughness, the wear resistance of material, improve force of cohesion, improve deformability and application property.
< tartrate >
Tartrate, that is, and 2,3 dihydroxybutanedioic acid, in patching material of the present invention, it is as retardant, its content range preferably 0.1%～0.22%, the present invention is by containing the tartrate of this content range, and the aquation that can slow down is concentrated the heat release time, and application property is in earlier stage provided.
< Quilonum Retard >
Quilonum Retard is a kind of colourless monoclinic system crystal body or white powder, and the present invention preferably its content range is 0.08%～1.8%, by adopting this content range, can improve the early strength of condensing of patching material of the present invention.
< fiber >
Fiber can improve toughness, the bending and compressive strength of material, reduces and shrinks, and impact resistant splits, wear-resisting ageing-resistant function.In the present invention, preferably polyethylene alcohol fiber (pva fiber) and carbon fiber collocation are used, and the two ratio is preferably 5:1.
Wherein, the alkalescence of polyvinyl alcohol fiber ability cement, and good with cohesiveness and the affinity of cement, it can increase the intensity of material in the present invention, makes it wear-resisting ageing-resistant; Carbon fiber is the high strength of a kind of carbon content more than 95%, the tencel material of high modulus fibre, and collocation is in the present invention used carbon fiber, can increase the intensity of material, improves anti-folding and anti-pressing performance.The two is combined with the toughness that can further improve material, and its wear-resisting ageing-resistant performance is strengthened.
< ether of cellulose >
Ether of cellulose is a kind of macromolecular compound with ether structure of being made up of Mierocrystalline cellulose.Mierocrystalline cellulose can be water-soluble after etherificate, dilute alkaline soln and organic solvent, and have thermoplasticity.According to substituent classification of chemical structure, ether of cellulose can be divided into negatively charged ion, positively charged ion and non-ionic type ethers.There are methylcellulose gum, hydroxyethylmethyl-cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, Natvosol, Vltra tears, cyanoethyl cellulose, α-tolunitrile ethyl cellulose, carboxymethyl hydroxyethyl cellulose and benzyl cellulose etc. with the difference of etherifying agent used, wherein larger with methylcellulose gum and ethyl cellulose practicality.
The ether of cellulose using in the present invention is not particularly limited, and can realize water retaining function, its content range preferably 0.02%～0.06%.By using ether of cellulose, can improve patching material of the present invention in the mobility of whipping process and the slipping of construction, it can make the moisture in patching material be difficult for losing simultaneously, and progressively discharges within long period of time, gives water-retentivity and workability that patching material is good.
Except above-mentioned each composition, the present invention can also add various water reducers, defoamer and hydrophober so that material of the present invention has better properties.Wherein, preferably use polycarboxylate water-reducer, silicone antifoam agent and organosilicon moisture repellent.
< polycarboxylate water-reducer >
Polycarboxylate water-reducer is a kind of high-performance water reducing agent, is a kind of cement dispersants during cement concrete uses.Polycarboxylate water-reducer has strong dissemination to cement, can greatly improve cement mixture mobility and concrete slump, significantly reduces water consumption simultaneously, significantly improves workability of concrete, and significantly improves the each age strength of concrete.
The polycarboxylate water-reducer using in the present invention is not particularly limited, and preferably the content range of polycarboxylate water-reducer is 0.08%～0.25%, by making it in this content range, can reduce water consumption, increases density, intensity and the mobility of patching material of the present invention.
< silicone antifoam agent >
Silicone antifoam agent be polymethyl siloxane taking modification as main body, add appropriate inorganic, organic surface active agent, through refining even water colour oil type (O/W) milk sap that forms of special process.The silicone antifoam agent using in the present invention is also not particularly limited, its content range preferably 0.08%～0.33%, and the froth breaking power of silicone antifoam agent is strong, and it can also increase density and the intensity of patching material in the present invention simultaneously.
< organosilicon moisture repellent >
Organosilicon moisture repellent is a kind of pollution-free, non-irritating new and effective water-proof material, is the high-effect water-resisting agent being synthesized by monomethyl alkane.It can with the effect of airborne carbonic acid gas, autohemagglutination forms one deck silicone resin waterproof membrane, thereby plays good water resistant perviousness.
The organosilicon moisture repellent using in the present invention is not particularly limited, and its content range preferably 0.2%～0.55%, by using this scope, can make patching material of the present invention possess good waterproof action, reduces plurosion.
[embodiment]
One. the preparation of patching material
According to 3 kinds of different batching modes in table 1, and adopt and be prepared as follows method and prepare patching material of the present invention.
1) silicate cement, sulfate cement and the fiber stirrer of getting corresponding proportion stirs 10～15 minutes;
2) by above-mentioned 1) in coarse whiting stone flour, quartz sand, polycarboxylate water-reducer, silicone antifoam agent, organosilicon moisture repellent, redispersable latex powder, tartrate, Quilonum Retard and the ether of cellulose of obtained mixture and corresponding proportion put into stirrer and stir 30～45 minutes;
3) by the above-mentioned material package packing making.
Table 1
In embodiment, fiber mainly adopts polyvinyl alcohol fiber and carbon fiber, and its usage ratio is not particularly limited, but preferably polyethylene alcohol fiber: carbon fiber=5:1.In addition, the kind of the aluminosulfate cement adopting in embodiment is also not particularly limited, and quick hardening sulphoaluminate cement, common aluminosulfate cement all can.Manufacturer and the model of each product are all not particularly limited, can adopt the product of domestic or external producer, the polycarboxylate water-reducer of the PC-1030P model that the polycarboxylate water-reducer preferably using in the present invention is Xin Bang biochemistry corporation,Ltd., silicone antifoam agent preferably uses No. 703 silicone antifoam agents of German Bi Ke, and organosilicon moisture repellent and ether of cellulose preferably adopt respectively 202S type organosilicon moisture repellent and the MT-B100K ether of cellulose of Shangyu Bao Cheng chemical technology company limited.
Two. the usage and dosage of patching material
1, basic demand
(1) adopt above-mentioned patching material, in the time that repairing thickness is 3mm, every square metre approximately needs material 4.5kg.
(2) adopt pollution-free water (livestock drinkable water).
(3) construction thickness 3mm is advisable above.
(4) execution conditions: temperature need be more than 6 DEG C, and the large rainy day can not construct.
(5) construction machinery: mortar mixer or manual stirring tool (electric hand drill repacking), cutting machine, high pressure water washing equipment, bottom surface cleaning device, sponge or mop (blot excessive moisture with), the agitation vat of irony is more than two, trowel several.
2, process bottom surface
(1) cleaning: the loose part that first road surface to be repaired is played to the positions such as drum, decortication, crack picks, to the position lower than 3mm, too smooth position with there is the position of greasy dirt will carry out plucking processing, brushes concrete interface agent.
(2) cleaning: by clean the cleaning of the foreign material such as the surface dust of bottom surface, clean down with high pressure water flushing, mud should be gone out to the scope of operation anti-backflow while washing away.
3, material allotment
(1) add water: by material and water mix and blend, amount of water best results 16% time, but according to repairing position difference, capable of regulating amount of water when extent of dilution difference is required, but amount of water should be controlled between 16%-20%.
(2) stir: when stirring, must stir, observe without dry powder ball and bubble, if still have dry powder ball and bubble, can after static one minute, stir again, churning time is advisable about 3 minutes, but also unsuitable overlong time prevents from solidifying in agitation vat.
(3) precaution: the reinforced meeting that first adds water when stirring is again more time saving and energy saving, because this material solidification time is shorter, disposable amount of agitation is unsuitable excessive, according to the scope of operation and construction speed, each material stirring should have been constructed in 20 minutes.
4, constructional method
(1) opportunity: the repairing face for the treatment of fully runs through, surface wettability but without open fire, if there is ponding at hollow position, construct again after with sponge or dry cloth, ponding being blotted, if thereby the quantity of exchanged water that has ponding can destroy material affects intensity; If occur surperficial overdrying phenomenon, again moistening again by the mode of sprinkle; The scope of operation keeps suitable humidity to contribute to bonding and constructability.
(2) repair: 1. for the repairing of cheating groove, pitted skin, peeling, hollowing, the material being stirred is poured in the scope of operation, shakeout with trowel, front trowel inlet side is slightly lifted and become 10 ° of angles with ground, with trying one's best, few number of times shakeouts material, there will be too much haftplatte phenomenon because return plate number of times, if be difficult to when floating, with regard to floating again after static two to three minutes.2. for the repairing in crack, if need to first expanding crack seam lower than 3mm, crack processes, with old mouthful of cutting machine excision, because old mouth has not the xln of aquation completely, notch depth can not be less than the thickness 50% of former cement plate, wait to expand a relatively good affected repairing face, can be beneficial to the bonding and strengthening action of material.
(3) precaution: this material can not carry out press polish as concrete, because this material presetting period is shorter, has adhesive when initial set, be unfavorable for floating, so with few number of times of trying one's best by floating the form that paves of material; But this material also needs as concrete vibrating link, material is paved closely knit and even, so just can avoid occurring cavity and tomography in the time of construction, particularly with the abutting edge of bottom surface, the best first very thin last layer of scraping in the time paving, observe the thickness that immediately paves again after each sags and crests has material fully to contact and to need, if the hole groove location of large thickness is preferably used this material to add that Guamishi repairs (powder: Guamishi=1:1)
5, after the maintenance after repairing has been repaired, after touching material surface hardened with hand, the health of can sprinkling water, but can not use high pressure water flushing, prevent surperficial slurries to wash away and affect intensity, if moisture evaporates too fast weather, cover health, no matter which kind of Curing Method can keep moisture state 24 hours above.Temperature more than 20 DEG C time, gets final product open to traffic in 24 hours, when temperature is low, and can the proper extension open hour.Rule of thumb, cover health best results, the thing that packing bag, the branch etc. of coverture available materials gathered materials on the spot, covering health creates conditions as far as possible.If conditions permit, the time that as far as possible extends open to traffic also contributes to the raising of material property.
Press aforesaid operations method, after adopting superpower tough patching material of the present invention to repair cement concrete pavement, find, material of the present invention can be realized ultra-thin repairing, road surface after repairing has superpower resistance to compression and superpower weather resistance, bond strength between itself and former cement concrete is better, can repair in time and without long-time close traffic cement pavement damaged part.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a Cement Concrete Pavement Reconstruction material, it is characterized in that, this patching material contains 15.6%～23.6% silicate cement by percentage to the quality, 15.6%～23.6% aluminosulfate cement, 6%～15% coarse whiting stone flour, 2.5%～7% redispersable latex powder, 0.08%～1.8% Quilonum Retard, 0.7%～1.03% fiber, 0.1%～0.22% tartrate, 0.02%～0.06% ether of cellulose, 26.56%～59.04% quartz sand, 0.08%～0.25% polycarboxylate water-reducer, 0.08%～0.33% silicone antifoam agent, 0.2%～0.55% organosilicon moisture repellent.
2. Cement Concrete Pavement Reconstruction material as claimed in claim 1, is characterized in that, described fiber package is containing polyvinyl alcohol fiber and carbon fiber, and the mass ratio of described polyvinyl alcohol fiber and described carbon fiber is 5:1.
3. Cement Concrete Pavement Reconstruction material as claimed in claim 1, is characterized in that, described quartz sand comprises 10～20 object quartz sands, 20～40 object quartz sands and 40～70 object quartz sands.
4. Cement Concrete Pavement Reconstruction material as claimed in claim 1, is characterized in that, described silicate cement is P II 52.5R type silicate cement.
5. Cement Concrete Pavement Reconstruction material as claimed in claim 1, is characterized in that, described redispersable latex powder is re-dispersible latex powder of acrylic acid.
6. Cement Concrete Pavement Reconstruction material as claimed in claim 1, it is characterized in that, described silicate cement is P II 52.5R type silicate cement, its content is 19.6%, the content of described aluminosulfate cement is 19.6%, the content of described coarse whiting stone flour is 9.75%, described redispersable latex powder is re-dispersible latex powder of acrylic acid, its content is 5.6%, the content of described Quilonum Retard is 0.14%, the content of described fiber is 0.98%, the content of described ether of cellulose is 0.03%, the content of described quartz sand is 43.4%, the content of described polycarboxylate water-reducer is 0.13%, the content of described silicone antifoam agent is 0.28%, the content of described organosilicon moisture repellent is 0.35%, described tartaric content is 0.14%.
7. Cement Concrete Pavement Reconstruction material as claimed in claim 6, it is characterized in that, described quartz sand comprises 10～20 object quartz sands, 20～40 object quartz sands and 40～70 object quartz sands, the content of described 10～20 object quartz sands is 11.2%, the content of described 20～40 object quartz sands is 18.2%, and the content of described 40～70 object quartz sands is 14%.
8. Cement Concrete Pavement Reconstruction material as claimed in claim 6, is characterized in that, described fiber package is containing polyvinyl alcohol fiber and carbon fiber, and the mass ratio of described polyvinyl alcohol fiber and described carbon fiber is 5:1.
9. the preparation method of the Cement Concrete Pavement Reconstruction material as described in any one in claim 1-8, is characterized in that, the method comprises the steps:
1) getting raw silicon acid salt cement, sulfate cement and fiber stirrer stirs 10～15 minutes;
2) by above-mentioned 1) in obtained mixture and coarse whiting stone flour, quartz sand, polycarboxylate water-reducer, silicone antifoam agent, organosilicon moisture repellent, redispersable latex powder, tartrate, Quilonum Retard and ether of cellulose put into stirrer and stir 30～45 minutes;
3) by the above-mentioned material package packing making.
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