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PBS-C
Improved Polymer Asphalt of high quality and high capacity


Improved Polymer Asphalt of high quality and high capacity

 

P B S  -  C

 



Nowadays, the plasticity transformation(rut), the stripe and the crack of an PBS-C ASCON pavement road are a lot generated by rapidly increasing traffic volume and heavy vehicles, and expenses for SOC maintenance such as the safety problem of a road, traffic jam, road life shortening and road repairing have been gradually increasing.

Therefore, the development of excellent improved PBS-C ASCON which has a resisting force against the problems of PBS-C ASCON pavement roads is required urgently. Accordingly, the improved PBS-C ASCON was developed and used, but there was no really improved PBS-C ASCON which satifies qaulity, workability, capacity and economy.

Because our developed PBS-C(Polymer Bitumen Stabilizer with Cellulous Fiber) is granued, it s easy to pour, disperse and mix. In addition, additional facility is not required, it does not smell bad and it is very convenient to produce and work because of being manufactured at the same temperature as the existing PBS-C ASCON.

It is a characteristic that PBS-C has excellent resisting force against a pasticity transformation, a crack and a breakaway created by a temperature change. Compared to other improved PBS-C ASCON, our products are very economical because of being manufactured in large quantities.


 

PBS-C will solve all the problems of roads.

 


PBS-C(Polymer Bitumen Stabilizer with Cellulose Fiber) is consisted of the Road Bitumen Stabilizer of a polymer concept close to white color and the Cellulose fiber which is a botanical fiber.
 


[Figure 1]   PBS


[Figure 2]   Cellulose Fibers

 



 
-Effect of plasticity transformation prevention-

PBS(Polymer Bitumen Stabilizer) strengthens the effect of excellent prepounding(compression enhancement) when a road is paved as well as the adhesive force of aggregate and mastic(asphalt, smashed sands, fillers) because viscosity is low at more than 100 from the manufacture of the PBS-C ASCON mixture to the pavement and an adhesive force by interconnecting between the mixtures because the temperature gets down less than 100 after the pavement was finished, and the crack. Fatigue prevention as wells as a resisting force against a plasticity transformation because the absorption of tension stress is decreased and the restoration force of elasticity is increased by enhancing viscosity.
 


[Table1] Relation of the temperature and the visicosity of PBSC  

 


[Figure3]Cellulose Fibers (Figure enlarged by 400 times)  


-Enhancement of a resisting force against a breakaway and a crack
Much absorption capacity of AP prevents itself from flowing down and AP enhances the breakaway of aggregate and the resisting force against the crack by increasing covering thickness because the Cellulose fiber as a botanical fiber has many gaps on a surface. Therefore, it enhances the resisiting force against aging, permeability, fatigue, a crack and abraison, and increases the endurance of the PBS-C ASCON pavement road by maintaining the flexibility of the ACON pavement road in the winter and strengthening expandability.


PBS-C will considerably reduce expenses for the prolongation of life span as well as the maintenance of roads.

 


The low viscosity of PBS-C enhances workability and compression property so as to get an excellent prepounding effect when the pavement is carried by changing the physical property of the composite body and highly enhancing softness. Because a temperature gets down after the pavement was carried, it is stabilized by increasing optimal compression, the strength of a adhesive force and the coating thickness of aggregate, and it is also resisted against aging, permeability, weathering, fatigue and a crack.

 


 [Table2] Physical property of PBSC and Plain Asphalt

 


 [Table3] Comparison of the familiarity test result that used PBSC and plain asphalt  mixed with granite and quartzite pebbles.

 

Compared the PBSC Asphalt which mixed 3% of PBSC into AP to amine, a stripe reducer, hydrate or plain asphalt, the enhanced effect of remarkable physical property (Increment of an adhesive force to aggregate) is shown and the creation of a port hole caused by the stripe problem specially on domestic pavement work can be decreased noticeably.

 

 

PBS-C remarkably improves a plasticity transformation, a crack and a breakway.




[Figire4] The road pavement that used PBSC(ChungKyeChun restoration work)  



[Figure5] Example of a plasticity transformation(rut) created by heavy vehicles  

 


A temperature change and the increment of sudden traffic volume and heavy vehicles generate a plasticity transformtion(ruts). Resisting capacity against an eternity transformation was verified by taking a wheel tracking test in order to test resisting capacity against the plasticity transformation of PBS-C.
 


[Figure6] Wheel Tracking Test Body(Up: Plain PBS-C ASCON / Down: PBS-C ASCON)  

 


[Table4] Plasticity Transfomation Result of a Wheel Tracking Test  

 

The result of the wheel tracking test shows that the plascity tranformation of PBS-C is more excellent than that of plain PBS-C ASCON as shown in an above figure and graph. So do the site experience and the creeping test.

Total rut depth is 4.1mm and a tracking rut is 0.1mm per the pass of 1000 times. In case of plan asphalt, total rut depth is 7.6mm and a tracking rut is 0.35mm per the pass of 1000 times. This result shows that PBS-C is more excellent than plain PBS-C ASCON.

PBS-C is safe and makes vehicles pass comfortably and transport smoothly.

 



The compression rate of the PBS-C ASCON pavement is directly related to the life of roads. One of PBS-C characters is the efficiency of pounding work. Compared PBSC to plain PBS-C ASCON at the pavement temperature of more than 100, it is efficient because pounding work along with a good prepounding effect(compression enhancement) is excellent and viscosity is low. Compared to the existing asphalt mixture after the pavement is finished, the impacted stress on the pavement body is absorbed, viscosity and elasticity restoration is remarkbly increased and the life of roads is noticeably extended because kinetic stability is very high.



Comparison of the prepounding effect of plain and PBS-C  

 


Comparison of the gap rate reduction followed by the use of PBS-C  




Compared PBS-C to other PBS-C Asphalt s, Costs are relatively low(construction costs is reduced). When the mixture is manufactured, additional manufacturing facilities are not required(manufacturing expenses are reduced). It is economical because the manufacturing temperature of the mixture is same as that of plain PBS-C ASCON(Expenses of manufacturing energy are reduced). Quality control is easy because it is easy to produce and work(easy manufacture and pavement).

It is very economical because the life of roads is remarkably extended and expenses for maintenance are reduced.

 



Excellent is a resisting force against the plasticity transformation(rut) under the condition of an high temperature and heavy vehicles.

A resisting force against the aggregate stripe and the crack is enhanced by increasing covering thickness and by preventing AP containing fibers from flowing down.

Endurance of the mixture against permeability and abraison is increased because a adhesive force is strengthened.

Increased is a resisting force against fatigue and a crack caused by reperition loads.

Increased is a resisting force against a stripe and a porthole because a adhesive force is strengthened.

Prepounding effect is excellent when the pavement is carried.(compression and workability are enhanced)

Easy producion, work, convenient maintenance and a low price.


 

PBS-C can be applied to all kinds of roads variously and simply.

 
 


Items

Contents

purpose

The plasticity transformation(rut) is prevented and the aggregate  

                breakaway and the crack are minimized.

Use  

For PBSC Asphalt pavement.

Standard Volume

2.5kgs(PBC 1.5kg/fiber 1kg) are used per ton of the mixture and can be increased according to the specification or the plan(the limit range of use volume is ±10%)

Mixing Method

pour into the mixer and mix while aggregate is filled in the

                pugmill(directly pour PBS-C packed in a poly bag into the mixer )

Temperature&

Mixing Time

Manufactured in the same way as the plain mixture. Drying mixing for 7~10 seconds and wet mixing for 35~40 seconds.

Packing Unit

The packing unit can be changed according to the customers' request.

Applicable

Structures

Freeways,Roads, Airports, Srtreets, Ports, Bridges, Crossroads,                            Runways, Roads for heavy vehicles.

 

 


[PBSC: Finish Products]  


[PBSC: Packing unit for transportation]  

 

 

 

 

 

 

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