1. Polymer Chemroad Cement Poison Protection System (CPPS)
Normally soils contain quite a number of cement poisons such as salt , sulfuric acid (H2SO4) Which will creat the failure in binding soil cement with others materials together. This will make the incompleted react of the cement mixing process. So the whole concrete treated base will fail.
By using Polymer Chemroad , the particles and cement poisons will be coated and bonded because the cement will be able to mix properly and perfectly. Then road base will be strengthend as designed.
Polymer Chemroad can be used with almost every type of in-situ soil to build a perfect road base.
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2. Polymer Chemroad Water Supply System (WSS)
A well–defined amount of water is needed to allow the cement to react with the soil during curing process. If this amount of water is reduced through evaporation. (Die of thirst phenomenon), the cement will not be able to react properly with the soil. Big clusters will then be formed in the pavement structure, which weaken the strength of the road structure. Consequently, it will causes cracks and potholes in a severe form after loads.
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By using polymer chemroad, additional water is stored to compensate the loss of water. If necessary, water for the binding process is lost because of evaporation or insufficient supply, the additional water will be supplied completely from chemroad water supply system (WSS). The chemroad water storage will control the humidity of the road base and keep it at its optimum to prevent the situation of “Die of thirst” Then the “Hydration” process will work effectively without any crack on the surface as well as minimizes the shrinkage of the road base.
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You can see that chemroad bases have more resistance against cracks than conventional roads and have very much lower shrinkage during the curing time, which results in a longer durability and again less need of maintainance.
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3. Polymer Chemroad water penetration Protection System (WPPS)
One of the most dangerous effect on pavement with concrete or cement treated base is water penetration, when water is stored within the pavement, it will be exposed to hot and low temperatures. High temperatures , such as in tropical countries, will cause the formation of water steam within the concrete. On the other hand, low temperatures will cause ice formation which both is dangerous for the pavement body, because it can cause well-known effect like potholes.
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During the curing process, as the cement hydrate, very small channels are formed on the surface called “Capillary”. Unfortunately, these capillary have the physical tendency to raise water. These small capillary can also be very deep, which means water can penetrate deeply into the pavement.
Water penetration of chemroad base.
The chemroad anti water penetration system provides a mechanism with the ability to block the rise of water. Here is how the system works. Chemroad adds micro-pores to the pavement with concrete or cement treated base, which are distributed throughout the pavement body randomly.
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These micro-pores settled in the small channels and break their physical tendency to raise water. Therefore, water is only able to rise up to the level of the first micro-pore and unable to penetrate deeply in the pavement with concrete or cement treated base, when chemroad is used.
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4. Polymer Chemroad Flexibility System (FS)
Between the particles, CHEMROAD adds kind of “Micro–rubber bands” which are under pressure. These particles and bonded together much stronger than the particles in the conventional road base. Which means the chemroad concrete base can sustain higher load. It is proven that the average of modulus elasticity is 25%-50% higher by using chemroad. The deflection is compensated very efficiently after every load because the “micro-rubber bands” will push the particles back to their original positions.
When a vehicle moves on the road, the load of the vehicle and its force deflects that particular segment thus causing alternating stress from time to time. As time goes by, the aggregate base is unable to stand this alternating stress. The elasticity limit of the pavement will be exceeded every time when there is a high load and deformation will stay even after the load has already passed the segment. This effect causes a well-known problem called “furrows”.
The Solution of Chem road to furrows
Chem road flexibility system can provide high modulus of elasticity and high flexibility
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The modulus of elasticity is a value, which determines the amount of force needed to deflect the material. The higher value for the modulus of elasticity means that the force also has to be higher to deflect the material the material. In turns, the elasticity limit of the pavement then is raised.
High flexibility for the pavement is needed to compensate the deformation (or deflection) after load to avoid things like furrows, which often causes cracks in the asphalt concrete.
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