Aggregates

The aggregates are the most important resource for various activities in the construction sector, which requires specific quantities and requirements.​

On average, each of our centres produces 16 aggregate references, which are distinguished primarily by particle size. Particle size, fines content, flatness and shape indices, as well as resistance to fragmentation and accelerated polishing are other requirements to be taken into account in this process.​

We also support the research and start-up of Mota-Engil Engenharia's quarries at an international level, with the transfer of qualified labour, selection and supply of appropriate equipment, as well as mining plans. ​

At the Santo Tirso quarry we also have a waste treatment operator's licence. 

All the aggregates produced by Mota-Engil Engenharia - Agregados, depending on their application, comply with European standards.

Local influence

Quarrying is seen by communities as polluting and damaging to the environment, mainly due to a lack of information. Compared to other activities, quarries cause less pollution than one might think because they handle a natural product without significant contaminants. The impact on the landscape is temporary and can be mitigated through landscape restoration, which can even create better conditions than those that existed before quarrying.

Noise, dust and the risk of contamination of aquifers are all manageable impacts if the best practices and techniques are used. Thus, the environmental impact can be minimised with good practices and post-exploitation recovery.