The specific objectives of the project for the project period and in decreasing order of importance are: 

• to provide technically, environmentally and economically feasible civil-engineering aggregates and additives based on OSA for appropriate applications like for the construction of base courses of roads and fields; 
• to disseminate know-how of the methods and the results demonstrated in the project to the target groups like municipalities, road administrations, contractors, politicians, legislative authorities, scientists and other professionals and specialists in Europe as well as in Estonia; 
• to give proof of the environmental benefits of civil-engineering materials and applications based on OSA with help of environmental life-cycle assessments, for example: reduced need for conventional civil engineering based on high volumes of natural non-renewable aggregates will bring about much less atmospheric CO2 releases and other environmental harms.
• to give proof of the economical benefits European societies will achieve when approving the use of OSA as additive material in appropriate stabilised civil engineering applications instead of using conventional methods with high aggregate volumes.

In longer term (five to ten years after the end of the project) the civil-engineering materials based on OSA will be accepted and become a common practice in Europe and provide a significant competitor to cement and other commercial additives in Europe. OSA is a by-product of energy production and its generation does not require energy and generate airborne releases of greenhouse gases. On the other hand, the production of cement generates close to 0,7 tonnes CO2 per one tonne cement. The utilisation of OSA may help in reducing CO2 emissions at least by 4,2 Million tonnes each year! In order to avoid adverse impacts of transports, OSA additives should be transported mainly by rail in Europe – in lorries only within a short radius or when other transport methods are not available.