CN105694496A

CN105694496A - Ultrathin asphalt membrane for engineering interface treatment and usage thereof

Info

Publication number: CN105694496A
Application number: CN201610218471.9A
Authority: CN
Inventors: 张超
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-11
Filing date: 2016-04-11
Publication date: 2016-06-22

Abstract

The invention relates to an ultrathin asphalt membrane for engineering interface treatment and usage thereof and belongs to the field of building materials. The ultrathin asphalt membrane is made from different types of asphalt and asphalt products, the technical requirements for serving as waterproof coil interfacial adhesive, asphalt pavement seal and asphalt pavement bond via different performance indexes can be met, the membrane is spread to an engineering interface part and is externally heated with a flame or hot air heater so that the membrane melts fast and bonds to the surface of a structure, the material and method of the invention has the technical advantages of energy conservation, quality controllability and construction simplicity, and beneficial improvement and extension is provided for existing engineering interface treatment technology.

Description

A kind of engineering interface processes by ultra-thin asphalt membrane and using method thereof

Technical field

The invention belongs to building material field, particularly relate to a kind of interface processing ultra-thin asphalt membrane and using method thereof for highway engineering and waterproofing work field。

Background technology

In Bituminous Pavement Construction with maintenance, water sealing effect and bond effect within pavement structure are the material particular work affecting Pavement Condition, excellent sealing and adhesion coating can significantly reduce the water of bituminous paving because of disease occurrence probability, improve pavement structure mechanical property, and then improve road surface bearing capacity prolonging service life of pavement。

Sealing material aspect, water shutoff floor is to prevent road table from oozing under water, reduce road surface pit, the important pavement structure of pumping is arranged, currently, the construction of bituminous paving sealing is main adopts slurry seal or two kinds of heated bitumen table place technology, these two technology are all dispensed by site machinery, and its quality good or not depends on the many factors such as capability of engineering equipment, construction management level, unit in charge of construction's responsibility, often falls flat。Sticking material aspect, on pavement structure mechanics, bearing capacity of pavement structure is closely related with its interlayer connection state, and the importance of adhesion coating is self-evident, such as build on road surface and support in design, often the tack coat not having actual (real) thickness is mentioned position of equal importance with road surface structare layer；The tack coat of current China pavement engineering mainly adopts the on-the-spot method spraying dissimilar emulsified asphalt to construct, and shortcoming of constructing with aforementioned sealing is identical, and its quality is subject to having a strong impact on of non-material factor, and how undesirable actual effect is。It can be said that sealing and adhesion coating to be quality not good is one of major reason causing road engineering " desirable with reality " huge spread。

Additionally, in the daily light maintenance maintenance work of bituminous paving, if adopting the treatment measures spraying emulsified asphalt as new and old structure interface on milling work surface, due to the requirement of quick open to traffic, can be shorter between effective working, not only have little time to accomplish uniformity, what emulsified asphalt breakdown of emulsion was left over moisture also has little time evaporation, this causes new heated bitumen material for repairing rapid cooling on the contrary, has a strong impact on repairing block consolidation effect, ultimately results in identical pavement disease position one bad bad again。

In waterproof construction, the Standardization Process flow process that asphalt water-proof coiled material is laid is: spread out successively by bundled waterproof roll, utilizes flame injection device being heated with works laminating one side coiled material, and limit heating edge is sprawled, to realize hot adhesion。This laying method has the disadvantage in that one, heating uniformity is uncontrollable, because coiled material is originally as black, naked eyes cannot be passed through during flame heating and quick and precisely differentiate degree of heat, during lack of skill, the local coking of coiled material difference can be caused or heat not in place, largely effecting on bonding quality；Two, a construction group needs to be made up of responsible heating and two workmans pushing away to roll, and indispensable, work efficiency is not high。

Therefore, how to improve the interface processing quality in road engineering and waterproofing work field and work efficiency becomes currently to need badly and solves the technical problem that。

Summary of the invention

For technical need described in background technology, it is an object of the invention to provide the prefabricated film material of a kind of Colophonium that can be obviously improved road engineering and waterproofing work field interface processing quality and pitch articles material and using method thereof。The present invention is a kind of useful expansion and improvement for the interface processing construction technology that currently associated engineering field actual mass is poor, can effectively solve the problem that interface processing lack of homogeneity, negative influence problem big, ineffective, all it is significantly improved for improving road sealing effect, adhesion coating connection ability and waterproof laying quality, and with low cost, easy construction, is present road engineering and new product that waterproofing work field had not occurred。

The present invention is achieved through the following technical solutions:

A kind of engineering interface processes uses ultra-thin asphalt membrane, by selecting the pitch of different labels, make, through independent or compound interpolation bitumen, modifying agent, pulverized powder, fiber (containing lignin fibre and chemical fibre), the different pitches film product meeting waterproof sealing, connection adhesion coating, the requirement of interface agglutination technology, be applied to corresponding engineering field by " interface laying+external heat " construction technology。

First, the construction process requirement according to different category work, position, it is determined that the thickness value of different interface processing occasion asphalt membrane products, road engineering sealing is 0.6mm～1.0mm(about 0.6～1.0kg/m with ultra-thin asphalt membrane thickness²), road engineering adhesion coating is 0.2mm～0.4mm(about 0.2～0.4kg/m with ultra-thin asphalt membrane thickness²), waterproofing work interface glue thickness is 0.3～0.6mm(about 0.3～0.6kg/m²)。

Further, according to different product technology requirement, select different labels asphalt material, and with bitumen, modifying agent, pulverized powder, fiber for means, asphalt material carries out the specific aim property modification of necessity, and classification forms the ultra-thin asphalt film product of 5 kinds of types, as shown in table 1。

The ultra-thin asphalt membrane product category of table 1

Sequence number	Classification	Major function
			1	The ultra-thin asphalt membrane of pitch	Conventional common occasion, waterproofing work interface glue
2	The ultra-thin asphalt membrane of modified pitch	Bituminous pavement top structure adhesion coating
			3	The ultra-thin asphalt membrane of tar sand	Bituminous paving waterproof sealing
4	Add fine ultra-thin asphalt membrane	Bituminous paving waterproof sealing, surface layer structure adhesion coating
			5	Composite ultra-thin asphalt membrane	Bituminous paving waterproof sealing, stress dissipation layer

Then, according to thickness specification and material property, making the ultra-thin asphalt membrane product adapting to different requirement of engineering, pack with Scroll, spool length presses waterproof roll specification, road Road width, the supporting setting of milling machine edge of a knife width。

Finally, based on the performance characteristics that the softening of Colophonium heat is tacky, it is layed in advance engineer applied position, flame injection heater or hot air jet heating devices etc. is adopted by laying surface external, ultra-thin asphalt membrane to be heated, make it quickly, uniformly, be adhered on work surface apt, then play the function of water shutoff or bonding。

The present invention has following positive technique effect:

A kind of engineering interface of the present invention processes by ultra-thin asphalt membrane and using method thereof, has the advantage that in Technological Economy

(1) adopt prefabricated bituminous film to substitute on-the-spot emulsified asphalt or heated bitumen sprays construction, owing to asphalt membrane is formed by prefabrication, so the quality testing before using is easily achieved, it is achieved that material property and construction quality controlled；In real process, full face asphalt membrane thickness is uniformity because of industrialized production, and this is for dark asphalt class material, completely eliminates sprinkling construction in the past and is judged to dispense uniform defect by visual inspection。

(2) for engineering time limited road maintenance engineering, ultra-thin asphalt membrane adhesion coating technique eliminates the residual moisture negative influence to the heated bitumen temperature that paves after emulsified asphalt dispenses, changing disadvantageous cold interface condition is favourable hot boundary condition, particularly with the light maintenance maintenance work of pit repairing class, changed dramatically in the fragmentary construction in local and be difficult to ensure a difficult problem for construction quality。

(3) due to emulsified bituminous materials exists cannot the steady in a long-term shortcoming stored, it is desirable to must be now with the current, the phenomenon producing waste in Practical Project is very general, and heated bitumen table place then needs a large amount of Colophonium long-time heat preservation standby, and work progress power consumption is serious；The ultra-thin asphalt membrane of the present invention has for shelf-stable, a portative advantage, ready access upon use, with how much taking how many, save, energy-saving benefit notable。

(4) emulsified asphalt typically requires main equipment and could ensure that sprinkling is uniformly, the hand-held watering can that light maintenance maintenance work adopts cannot realize uniform sprinkling at all, this makes the emulsified asphalt adhesion coating commonly used setting become a mere formality, and heated bitumen table place currently also cannot realize small hand-held tool operation；The restriction of these technique reduces the actual effect of function path layer during light maintenance operation, and the ultra-thin asphalt membrane of the present invention then has only to carry small-sized hand-held heater and can be achieved with high-quality construction, simple and efficient。

(5) current, water proofing asphalt coiled material construction technology need to two skilled industrial worker personnel, there is construction technical requirement height, quality control difficulty is big, work efficiency is relatively low shortcoming, interface glue using the ultra-thin asphalt membrane of the present invention as waterproof roll Yu building, without heating the bigger coiled material of thickness itself, thickness only need to only have the asphalt film heating of 0.3～0.6mm just can realize hot adhesion, and overall process is visually observed, quality easily ensures, saves energy；The more important thing is, it is possible to achieve one man operation, work efficiency and economic benefit are significantly improved。

Detailed description of the invention

Embodiment 1

Pit disease is the disease that bituminous paving is most commonly seen, is also the maintenance objects that in pavement current repair maintenance work, quantity is maximum, simultaneously still the most intractable Damage Types；It is low that this is because on the one hand pit repairing small scale, mechanization degree；Being because the engineering time on the other hand limited, interface is difficult to process and puts in place；So the quality of pit repairing often cannot ensure, after repairing, in-site secondary destruction probability is very big。

Pit repairing technique border detailed treatment be easiest to unheeded processing step, also it is the position being most difficult to produce a desired effect, this is wherein subject to emulsified asphalt quality, the hand sprayer tool subjective and objective factor such as performance, personnel's attention degree impact, it is often more important that do not have easy BORDER PROCESSING technology reliably。BORDER PROCESSING inefficacy often results in the infiltration of repairing interface, block corner, compacting is not satisfied by technology requirement so that maintenance work is ineffective。

Using the ultra-thin asphalt membrane of the modified pitch of the present invention as the binding agent of the new and old material of pit repairing, the interface processing uniformity at whole excavation milling interface can be made, the corner weak spot position of rectangle box cut can also be carried out special reinforcement operation, simultaneously, the use of ultra-thin asphalt membrane eliminates emulsified asphalt convergence at low-lying place in bottom because of flowing, and the breakdown of emulsion residual water therefore produced is accumulated。

Onsite application situation shows, pit repairing is mainly had significantly improving of two aspects by ultra-thin asphalt membrane sticking material: the infiltration coefficient one, repairing block interface significantly reduces, close to the impervious level even up to non-interface；Two, repair the new and old material of block and couple ability improvement substantially, repair position and can obtain complete bituminous concrete core, it was demonstrated that the new and old material in pit disease place reaches the state of collaborative work。

Embodiment 2

In the typical semi-rigid base asphalt pavement structure of China, need between semi-rigid type base and asphalt concrete pavement to arrange sealing to avoid road table to ooze under water to fine and close cement stabilized macadam floor, thus reducing road surface to produce purt slurry, depression isostructuralism serious plant disease。

The construction of current bituminous paving sealing mainly adopts the site technique such as slurry seal, heated bitumen table place to realize, and by the impact of current technology processes, material property, two kinds of techniques are all unable to reach satisfied effect。

Using the composite ultra-thin asphalt membrane of the present invention as pavement engineering sealing, it is possible to seal coat thickness uniform be completely secured, and not local holes defect, play the effect of real water shutoff；Simultaneously, add fibrous material therein, can effectively improve the mechanical property of asphalt membrane, improve its stress absorption ability, this can play to a certain extent reduce reflection crack effect, so using composite ultra-thin asphalt membrane as the sealing of semi-rigid base asphalt pavement structure be kill two birds with one stone。

It will be further appreciated that, when adopting ultra-thin asphalt membrane as bituminous paving sealing or adhesion coating, simple fixing and necessary overlap joint only need to be carried out when laying, without carrying out extra molten roasting operation with heater, because heated bitumen making thereon can realize its hot melting cohesion effect in the lump, construction becomes simpler。

Embodiment 3

A kind of lamellar impermeable material that waterproof roll is made up of Colophonium and tire core, thickness is generally about 3mm, and its waterproof effect and useful life longevity depend primarily on the bonding situation of the quality of coiled material own and coiled material and building。Current waterproof coiled material construction mainly adopts flame injection device barbecue coiled material itself, when surface Colophonium is melted by itself and building end face bonding, this kind of technique is as described above, heating uniformity should not be grasped, need to by two workman's compounding practices, and owing to the thickness of coiled material own is relatively big, required heat time heating time is longer, and the heat energy of consumption is significantly high。

Using the ultra-thin asphalt membrane of the pitch of the present invention, as waterproof roll interface glue, (the high grade Colophonium less by thermal capacitance is made, usual thickness is 0.3～0.6mm, for waterproof roll thickness 10%～20%), put in advance and be laid on building surface, owing to its thickness is only small, moment building surface can be melted to when single hand-held flame injection device heats, efficiency is high and energy consumption is low, and, after the roasting ultra-thin asphalt membrane of heater spray, under hold building surface and will participate in next step processing step with hot interface form, the bonding effect of waterproof roll and building can be obviously improved, and then extend constructure waterproofing engineering service life。

According to measuring and calculating, under equal construction quality and labor intensity situation, the heating energy consumption of the present invention can reduce about 50%, and artificial machine-team can save 30%～50%。

Example described above is merely to illustrate technological thought and the feature of the present invention, purpose is in that to make those skilled in that art it will be appreciated that present disclosure implementing according to this, can not limit the scope of the claims of the present invention with this example, namely all various variants meeting inventive concept and way still drop within the scope of the claims of the present invention。

Claims

1. an engineering interface processes and uses ultra-thin asphalt membrane, it is characterized in that: described ultra-thin asphalt membrane material based on Colophonium, make through independent or compound interpolation bitumen, modifying agent, pulverized powder, fiber (containing lignin fibre and chemical fibre), by mass percentage: bitumen content is 1%～40%, modifier content is 0.1%～6.0%, pulverized powder content is 1%～30%, and fiber content is 0.01%～5%；Making asphalt membrane thickness is 0～1mm, and width and length are not limit。

2. the using method of ultra-thin asphalt membrane as claimed in claim 1, it is characterized in that: as pavement engineering sealing or adhesion coating, waterproof roll interface glue, it is layed in interface locations, heater, hot air jet heating devices or other heaters is sprayed by flame, melted to softening from the heating of paved surface exterior top surface, and and interfacial adhesion。