Page 66 - Microsoft Word - 20120528 Unesco study

Figure 5.2: Expected maintenance costs due to the floods in the period of 28-06-2012 till
07-05-2012 in Mexican Pesos

As shown in figure 5.2 the maintenance costs with the PowerCem technology in relation to the
traditional maintenance reduced by approximately 50%.

To get an accurate impression of the macro-economic effects of the PowerCem technology the
maintenance costs due to flood damages are also determined for a longer period of 10 years.
Since all the roads in the state Tabasco will be engineered for a lifetime of 10 years, after these
10 years the cost cycle will start over again.

Since the comparison is based on information from a specific year there is for both approaches
an outlined scenario. Both scenarios are based on the following assumptions:
• The gathered data regarding the floods and damages given in chapter 3 are normative
for a period of 10 years;
• Floods may occur spread over the whole State Tabasco

There are scenario’s outlined to compare the traditional maintenance costs and the
maintenance cost on basis of the PowerCem Technology
• Scenario: Reactive policy on the traditional way
In a reactive policy on the traditional way will the destroyed roads be renewed with
the same materials used in the original construction? This scenario is based on the
reasonable assumption that for a period of 10 years a similar amount of roads, spread
over the whole country, will be damaged by floods. This means that the maintenance
costs due to flood damages are equal for a period of 10 years.
• Scenario: Reactive policy with RoadCem
In a reactive policy with RoadCem will the destroyed roads be renewed on base of the
PowerCem technology? One of the advantages of the PowerCem technology is that
the roads built with RoadCem and cement will not be structural damaged by floods.
Since the growing amount of roads built on the basis of the PowerCem technology the
maintenance costs are expected to reduce during this time. Therefore an assumptive
reduction percentage of 20% is used.

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