I believe this means using a recycled and recyclable materials!

I am agree with H.E.Ben, that the mentioned term is related with recycled and recyclable materials. Sustainability in the ecological sense means to provide the vision that using the resources which might not affect the future generation adversely or negative way. Eco design has usually two meaning - one is regarding ecology which states Ecology while another sense stands for economics terms which sates Economic means budget to pocket.

In your case caring for future generation and ecological implication suits for material selection.

I was looking for such information on the concrete. I mean a simple sheet where you can compare the "ECO" of different concretes. It is not easy mainly because of the lack of accurate data.

I found: http://www.theconcreteinstitute.org.za/sustainability/concrete-model/

Maybe You you know a better tool for this purpose?

Here:

https://www.researchgate.net/profile/Lech_Czarnecki/publications

You have some publicatins about sustainability.

Best Regards,

Wojciech Kubissa

A Product will be sustainable if Technically more sound, economically more viable , environmentally more friendly and socially more acceptable , that what sustainability means.

To me it's more of a "Corrosion" and "Fatigue"related question. So, in order to understand the fundamentals of Sustainability and Eco design, one would need to address the corrosion and oxidation properties of the selecting material(s) as well as it's "Fatigue" property.

There is a simple fact about all the man-made materials such as Alloys (i.e. Steel), Composites (i.e. Concrete), Polymers ( all kind of plastics) has a thermodynamic interest in being oxidated to their original state, which is found in nature. For instance, simple Carbon Steel used in building the car's body, and almost every bridge you see, has a huge tendency to degredate back to it's initial state that is Iron Oxide known as "Rust". Iron Oxide is the form of Iron that is found in the nature and thermodynamically is the most stable form of Iron on the earth. 

In regards to the Fatigue phenomenon, a sustainability and design engineer needs to know that every man-made material has an specific effective life that is called "Fatigue life" of the material. The life of each material according to its application is a predictable. For instance, if you could make your bike using Titanium alloys instead Steel, you would have a way more durable bike. this is because that the Titanium alloys has way better inherent resistance against both the corrosion and fatigue than the Steel. therefore, you'll have a way more durable bike, the price of it would be significantly greater though. 

Thereby,  from materials engineering point of view, I believe that "Corrosion" and "Fatigue" are the two topics that define the fundamentals of sustainability and Eco design more than any other topics.

I suggest you to look up "Creep of materials if you're interested in materials used in high temperature applications. 

You can use wood as a biological, renewable, light and strong material for buildings and structures, for instance. The modulus of elasticity of a wood can reach easily 15,000-20,000 MPa and the modulus of rupture can reach 100-140 MPa. The specific gravity of the wood varies from 150 to 1000 kg/m³, depending on the species.

At the time of selection of material sustainability is belongs to the points which should be keep in mind (such as conserving resources to reducing environmental impacts and accruing subsequent savings through improved productivity and waste reduction.

I am sure it is design for resource efficiency and recycling ability. Materials should be selected for a certain product keeping in view of end of life recycling and closing the loop. 

Another way of looking at the topic is in terms of the consumption of energy throughout the life cycle of the component i.e. manufacture and processing of the {chosen} material + material specific manufacturing processes and surface treatments + service life (so factors such as service life, weight etc) and finally the opportunities for end of life remanufacture, reuse, recycling or disposal. The selection of a material for an application will carry an energy burden in each of the phases, different materials will naturally also consume different amounts of energy during each phase which provides a means of ranking each in terms of environmental impact.