CN1031463C - PRL bentonite emulsified asphalt and making method thereof - Google Patents
PRL bentonite emulsified asphalt and making method thereof Download PDFInfo
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- CN1031463C CN1031463C CN 93105325 CN93105325A CN1031463C CN 1031463 C CN1031463 C CN 1031463C CN 93105325 CN93105325 CN 93105325 CN 93105325 A CN93105325 A CN 93105325A CN 1031463 C CN1031463 C CN 1031463C
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- pitch
- water
- extensibility
- emulsified asphalt
- wilkinite
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Abstract
The present invention relates to PRL bentonite emulsified asphalt utilizing petroleum asphalt with high extensibility or heavy oil as base materials and a preparation method thereof. The PRL bentonite emulsified asphalt comprises 30 to 50% of asphalt, 7 to 17% of bentonite and 33 to 63% of water or comprises 25 to 38% of heavy oil, 10 to 17% of asphalt, 5 to 9% of bentonite and 36 to 60% of water. During the time of preparation, the water is firstly heated to 80 to 100 DEG C and is stirred in a tank together with the bentonite according to the compounding ratio, and then the melted asphalt or the heavy oil heated to 180 to 200 DEG C is poured into the tank and is continuously stirred for 40 to 50 minutes. A two-spreading and three-coating method is adopted in construction. The present invention has the main advantages of energy source saving of raw materials, no pollution, low labor intensity, low cost of 25% of a three-felt and four-oil method, no brittle fracture at-40 DEG C, no glide at 85 DEG C, high bonding force of larger than 0.36 MPa/cm<2> at 18 to 22 DEG C and long-term storage at 0 to 20 DEG C.
Description
The present invention relates to roof waterproof, indoor moistureproof engineering belongs to building material field.
In existing technology, roof waterproof still adopts old processing method, promptly adopts the practice of three floors of tarred felt and four floors of tar, be exactly to prop up kitchen range at the construction field (site), heat asphalt blocks more than 200 ℃, then, this deep fat is coated on the roofing of construction place, after sticking linkrusta, on linkrusta, coat deep fat again, on this deep fat face, stick linkrusta again, on the linkrusta surface, be coated with deep fat again, then, stick linkrusta again, be coated with the last layer deep fat at last again.This way is not only outmoded, complex process, also has contaminate environment, easily produces the scald accident, and, there is mistake just not reach the purpose of waterproof slightly.The anti-revisionist rate of this technology can reach more than 50% according to statistics.At present, the report of the existing cold water-proof material of bitumen emulsion, what deliver as asphalt felt-making factories field, Beijing oecoeclades falcata of " worker is built in Dalian " second phase in 1981 publication is exactly an example about the cold water-proof material of loam mould bitumen emulsion.But do not introduce its technology contents in the article, just propose some technological standards of this product.
Purpose of the present invention is exactly in order to overcome the deficiency of above-mentioned prior art, saves starting material, save energy, reduces labor intensity, environment purification, minimizing accident and guarantee reliable water resistance, specially proposes concrete solution of the present invention.
Design of the present invention is, hot-melt asphalt or heavy oil mix with water under the effect of machinery with the bituminous molten state, is dispersed in the water, forms milk sap, but this milk sap, just can autocoagulation when drop runs foul of each other, and last same water sepn agglomerated together.For making this milk sap become stable, must add tensio-active agent with emulsifying effect, the molecular adsorption of tensio-active agent forms adsorption layer on water and bituminous interface, the interfacial tension of pitch or heavy oil and water is descended.When the tensio-active agent of absorption around pitch or the heavy oil drop reached capacity, its drop surface had just formed layer protecting film, and this protective membrane stops the coalescent of drop, made milk sap stable.Have high dispersiveness according to sodium bentonite, high physical and chemical activity, high colloidal stability, series of characteristics such as strong adsorptivity and high-adhesion can be as the best emulsifying dispersant of making bentonite emulsified asphalt.In addition, wilkinite can expand rapidly after meeting water, and the wilkinite after the aquation is greasy smooth in vain, under the effect of machinery, can be adsorbed on firmly on the interface of pitch or heavy oil milk sap.This is the major reason of product energy prolonged preservation of the present invention.Pitch of the present invention be big petroleum pitch of extensibility or heavy oil to add the little pitch of extensibility be base-material, this pitch and heavy oil can make product of the present invention have in non-fragile characteristics in winter.Here its trade mark of petroleum pitch that said extensibility is big generally is meant 60
#, 100
#, 140
#, 180
#With 200
#, the pitch that extensibility is little generally refers to 10
#, 30
#
Proposed by the invention a kind ofly use the big petroleum pitch of extensibility or heavy oil to add the little pitch of extensibility be bentonite emulsified asphalt of base-material and preparation method thereof, its composition prescription (weight percent, down with) be two kinds: be the prescription of base-material promptly and add the prescription that the little pitch of extensibility is base-material with heavy oil and (be called for short to return and join the prescription that pitch is base-material with the big petroleum pitch of extensibility, now be described below respectively: at first illustrate with the big pitch of extensibility (to be generally: 60 down together),
#, 100
#, 140
#, 180
#, 200
#) being the prescription of base-material: pitch accounts for 30～50% of gross weight, emulsifying dispersant wilkinite (100～200 orders.100～200 orders are meant that the wilkinite particle diameter is 149～74 microns) account for 7～17% of gross weight, and water accounts for 33～63% of gross weight.When pitch was measured lower value, its wilkinite also took off limit, but water is wanted capping; Measure in limited time when pitch, wilkinite is capping then, and water should take off limit.Generally speaking, get its optimum value and be advisable, promptly the pitch amount is 43%, and wilkinite measures 10%, water measure 47%.All get this proportioning (claiming normal proportioning) under general normal water proof case, but when being coated with oil of the cold end (i.e. the first road oil), then pitch amount and bentonitic amount are all got its upper limit, the amount of water is then taken off limit.Join the prescription that pitch is base-material to return: (pitch that extensibility is little can be 10 to pitch
#, 30
#, but be generally 10
#) accounting for 10～17% of gross weight, heavy oil accounts for 25～38% of gross weight, and bentonitic amount accounts for 5～9% of gross weight, and the amount of water accounts for 36～60% of gross weight.When heavy oil content takes off in limited time, its asphalt content and bentonite content are also all got its lower value separately, but the content of water should be got its higher limit, generally speaking, be advisable to get its optimum value, promptly heavy oil accounts for 31% of total amount, and pitch accounts for 13% of total amount, wilkinite accounts for 7% of total amount, and the amount of water accounts for 49% of total amount.When using this time to join pitch, must guarantee that the ratio of low extensibility bituminous amount and heavy oil amount should satisfy about 3: 7, because such base-material that ratio made is equivalent to the big petroleum pitch base-material of extensibility as the prescription of base-material.
Bentonite emulsified asphalt of the present invention and preparation method thereof, for clear, its process for making, to be the making method of base-material and join the making method that pitch is base-material that narration respectively is because there is a small difference between them with the big petroleum pitch of extensibility to return, promptly join pitch when being base-material to return, at first the ratio by the little pitch of extensibility and heavy oil amount is about 3: 7, is made into to be equivalent to the big pitch of extensibility, and making method then is just just the same.
With the big petroleum pitch of extensibility is that the making method of the bentonite emulsified asphalt of base-material is, by its above-mentioned proportion scale, at first, be heated to 80～100 ℃, get 1/3 of its water yield and add in the mechanical agitator tank earlier the water (promptly accounting for gross weight 33～63%) of dosage, then, add 100～200 purpose wilkinites (account for gross weight 7～17%), begin to stir, afterwards, to remain 2/3 water more all adds in the jar, at this moment, will be heated to 180～200 ℃ of fused pitches (account for total amount 30～50%) again, and pour into and continue in this jar to stir, time should be no less than 10 minutes, but the longer the better, was generally 40～50 minutes, checks its fineness through packing, thermotolerance, winter hardiness, water tolerance (static pressure inspection), cohesive force, after qualified, promptly can be used for site operation or warehouse-in (all in the storehouse, getting the finished product that has prepared when generally constructing).
To join pitch be that the making method of the bentonite emulsified asphalt of base-material is to return, by its above-mentioned proportion scale, at first with the water of batching (account for total amount 30～60%), heat 80～100 ℃, get 1/3 of its water yield and add earlier in the mechanical agitator tank, then, add 100～200 purpose wilkinites (account for total amount 5～9%) again, begin to stir, afterwards, at this moment will remain 2/3 water more all adds in the jar,, the pitch that will be heated to 180～200 ℃ again (extends little pitch, generally can be 10
#, 30
#, but use 10 usually
#Account for total amount 10～17%) and the fusion oil plant (pitch: heavy oil=about 3: 7, this fused oil plant also can be referred to as back to join pitch) of heavy oil (account for total amount 25～38%), pour in this jar, continue to stir, the time should be no less than 10 minutes, but the longer the better, be generally 40～50 minutes, check that through packing (method and project are all with the former) is qualified, dispatch from the factory or put in storage standby.
Be not difficult to find out, above two kinds of base-materials be base-material promptly and join pitch and (contain and account for the heavy oil amount and be about the little pitch of extensibility about 0.43 to return with pitch (pitch that extensibility is big), be pitch: heavy oil is about about 3: 7) be the bentonite emulsified asphalt of base-material, although its batching and making method are slightly variant, but its essence is the same, and its construction technology also is the same.
The arrangement of reinforcement material that adopts when the present invention constructs is cotton yarn screen cloth, woven fiber glass, non-woven fabrics etc., but the most frequently used then be the cotton yarn screen cloth.Utilize the roof waterproof construction technology of bentonite emulsified asphalt to be: two cloth three are coated with, promptly with product 1.5kg/m of the present invention
2Be applied on the roofing; Then, spread the required arrangement of reinforcement of this product of one deck in the above, be coated with the second road oil (product of the present invention) again on arrangement of reinforcement, its weight also is 1.5kg/m
2Repave second layer arrangement of reinforcement, last, be coated with the 3rd road oil again, its amount is 2kg/m
2Use this technology, removing first road oil is pitch with proportioning: 30%, and wilkinite: 7%, outside the prescription of water 63%, it is pitch that second road oil and the 3rd road oil are all used proportioning: 43%; Wilkinite: 10%; Water: 47% prescription.
Product of the present invention is that black, liquid state are seemingly painted shape, and the performance of the wilkinite bitumen emulsion of salient features and Beijing asphalt felt-making factories is compared as follows:
Major advantage of the present invention: decapacitation reduces labor intensity, safety in the production and construction, free from environmental pollution outside, it also has the following advantages highlightedly: 1. save material in a large number and the energy, pitch of the present invention is 2kg/m
2, and three floors of tarred felt and four floors of tar technology pitch is 8kg/m
2, therefore, the cost cost can be saved about 3/4, use with return join pitch when being base-material its price more cheap, product ductility 2. of the present invention at low temperatures is good, not embrittlement has stronger winter hardiness, 3. cohesive force is strong, at normal temperatures can be greater than 0.36MPa/cm
2, reach as high as 0.9MPa/cm
2, 4. at high temperature, keep good thermotolerance, vertical walls did not glide in 6 hours when test showed 85 ℃, 5. easily preserve, but in 0～20 ℃ of long-term storage, 6. in the construction owing to adopt the cotton yarn screen cloth to make arrangement of reinforcement, " dead booklet " do not occur, make construction surface smooth smooth, for some special constructions, privileged sites, when architectural design, needn't probe brick and indent structure be arranged for the waterproof construction specialized designs, thereby reform Architectural Structure Design.
Be brief description of drawings below
Fig. 1 is that the present invention is the manufacturing approach craft schema of the bentonite emulsified asphalt of base-material with the big petroleum pitch of extensibility.
Fig. 2 is that the present invention joins the manufacturing approach craft schema that pitch is the bentonite emulsified asphalt of base-material to return.
Product of the present invention and preparation method thereof is applicable to the difform system of giving, cast-in-place roof waterproof, and indoor protection against the tide, pipeline corrosion protection, insulation and iron plate roofing are anticorrosion etc.
The bentonite emulsified asphalt that the present invention makes with the base-material of the big petroleum pitch of extensibility is that example (joining asphalt base-material making bentonite emulsified asphalt too to return) illustrates that its implementation process is as follows:
Adopting bentonite emulsified asphalt of the present invention, is that two cloth three are coated with to roof waterproof construction technology.
Batching: 180
#Pitch is got 43% of batching gross weight; Wilkinite is got 10% of batching gross weight; Water is got 47% of batching gross weight.
Make: by above-mentioned proportion scale, at first the water with ingredients by weight is heated to 95 ℃, get its 1/3, add in the mechanical agitator tank, the wilkinite that adds the above-mentioned batching of 200 purposes then begins to stir, afterwards, at this moment will remain 2/3 water more all adds in the jar,, to be heated to the pitch of 200 ℃ of above-mentioned dosages of fused again, pour into and continue in this jar to stir 40 minutes, packing is checked again, its outward appearance: black paint shape; The high water column of water tolerance: 20cm 30 days is waterproof; Thermotolerance: 85 ℃ of vertical walls did not glide in 6 hours; Winter hardiness :-40 ℃ ± 2 hours flawlesses, cohesive force in the time of 20+2 ℃ greater than 0.36MPa/cm
2, the qualified site operation that promptly can be used for
Construction: adopt two cloth three to be coated with construction technology
The first road oil one is coated with, and use end oil (pitch is 30%, and wilkinite is 7%, water 63%, and making method is the same, slightly) with 1.5kg/m
2Oil plant (bentonite emulsified asphalt, down with) be applied on the roofing, then, be coated with pasta upper berth one deck cotton yarn screen cloth-a cloth, afterwards, brush the second road oil-two to be coated with, use the normal oil plant of above-mentioned making, still with 1.5kg/m
2Oil plant be applied on the cotton yarn screen cloth, on second layer pasta, spread second layer arrangement of reinforcement-cotton yarn screen cloth-two cloth again, last, be coated with the 3rd road oil-three and be coated with, still use the oil plant of the second road oil, its amount is 2kg/m
2, passed examination is promptly finished this construction.
Claims (10)
1, a kind of bentonite emulsified asphalt of being used by the waterproof damp proof insulation of pitch, wilkinite and water making is characterized in that:
A, adoptable prescription base-material are the big petroleum pitch of extensibility,
B, its composition prescription are (weight percent):
The pitch that extensibility is big: 30～50%,
Wilkinite: 7～17%,
Water: 33～63%.
According to the described bentonite emulsified asphalt of claim 1, it is characterized in that 2, its composition prescription is (weight percent):
The pitch that extensibility is big; 43%,
Wilkinite: 10%,
Water: 47%.
According to the described bentonite emulsified asphalt of claim 1, it is characterized in that 3, the pitch that described extensibility is big, its trade mark are 60
#, 100
#, 140
#, 180
#With 200
#
According to the described bentonite emulsified asphalt of claim 1, it is characterized in that 4, used bentonitic particle diameter is 149～74 microns.
5, a kind of by pitch, wilkinite, heavy oil and the waterproof of water making, the bentonite emulsified asphalt that damp proof insulation is used, it is characterized in that:
A, the prescription base-material that is adopted are that heavy oil adds the little pitch of extensibility,
B, its composition prescription are (weight percent):
Heavy oil: 25～38%,
The pitch that extensibility is little: 10～17%,
Wilkinite: 5～9%,
Water: 36～60%,
Wherein the weight ratio of pitch that extensibility is little and heavy oil is 3: 7.
According to the described bentonite emulsified asphalt of claim 5, it is characterized in that 6, its composition prescription is (weight percent):
Heavy oil: 31%,
The pitch that extensibility is little: 13%,
Wilkinite: 7%,
Water: 49%,
According to the described bentonite emulsified asphalt of claim 5, it is characterized in that 7, the pitch that described extensibility is little, its trade mark are 10
#With 30
#
According to the described bentonite emulsified asphalt of claim 5, it is characterized in that 8, used bentonitic particle diameter is 149～74 microns.
9, according to the making method of the described bentonite emulsified asphalt of claim 1, this making method is: by its proportion scale, at first the water with batching is heated to 80～100 ℃, getting 1/3 of its water yield adds in the mechanical agitator tank, then, the wilkinite that adds 100～200 order granularities, begin to stir, afterwards, at this moment will remain 2/3 water more all adds in the jar,, to be heated to 180～200 ℃ of fused pitches again, pour into and continue in this jar to stir, the time was generally 40～50 minutes, can use or put in storage through the packing passed examination.
10, according to the making method of the described bentonite emulsified asphalt of claim 5, this making method is: by its proportion scale, at first the water with batching is heated to 80～100 ℃, getting 1/3 of this water yield adds in the mechanical agitator tank, then, the wilkinite that adds 100～200 order granularities, begin to stir, afterwards, at this moment will remain 2/3 water more all adds in the jar,, to be heated to the little pitch of 180～200 ℃ extensibility and the fusion oil plant of heavy oil again pours in the jar, continue to stir, the time was generally 40～50 minutes, dispatched from the factory after the packing passed examination or put in storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105325 CN1031463C (en) | 1993-04-29 | 1993-04-29 | PRL bentonite emulsified asphalt and making method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105325 CN1031463C (en) | 1993-04-29 | 1993-04-29 | PRL bentonite emulsified asphalt and making method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1080300A CN1080300A (en) | 1994-01-05 |
| CN1031463C true CN1031463C (en) | 1996-04-03 |
Family
ID=4985659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93105325 Expired - Fee Related CN1031463C (en) | 1993-04-29 | 1993-04-29 | PRL bentonite emulsified asphalt and making method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031463C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL443610A1 (en) * | 2023-01-27 | 2023-07-17 | Politechnika Lubelska | Method of modifying asphalt binders with a two-component additive |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558885B (en) * | 2011-12-30 | 2014-04-23 | 上海龙孚材料技术有限公司 | Emulsified asphalt used for high-speed railway, mortar containing emulsified asphalt and preparation method of mortar |
| CN108178933B (en) * | 2017-12-29 | 2020-06-02 | 重庆市盛百利防水建材有限公司 | Modified asphalt and preparation method thereof |
-
1993
- 1993-04-29 CN CN 93105325 patent/CN1031463C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL443610A1 (en) * | 2023-01-27 | 2023-07-17 | Politechnika Lubelska | Method of modifying asphalt binders with a two-component additive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1080300A (en) | 1994-01-05 |
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