We live on a planet with a fixed quantity of resources and a large population but growing at a reduced rate. The growing population results in significant pressure on our planet, causing extreme weather and the aging population is creating additional demand with diminishing labor supply. These factors are creating a perfect storm of increased population densities, overload of our infrastructure, exceeding capacity limits of supply chains, an increase in natural disasters and a large, growing momentum for more environmentally, sustainable, resilient infrastructure -the critically important infrastructure that provides our quality of life -clean water, sanitation, the movement and housing of people and goods. Historically, we have solved the problems of increasing demand by expanding the capacity of our infrastructure. It has become obvious that it is unacceptable to continue providing the same solution to these problems by expanding capacity and consuming our limited resources. In a world demanding a Circular Economy, engineers play a critical role in providing new technological solutions for more sustainable, resilient and greener infrastructure to meet global needs. New advanced materials, methods and processes are required. While Ultra-High Performance Concrete is not new, in the history of materials it is still in its early development stage and most of its potential is not yet realized or in many cases not recognized by key decision-makers. This paper reviews the development of UHPC, presenting a future view of how material technology will address many of the world's demand for more sustainable and resilient infrastructure. The paper covers future potential UHPC products/solutions, manufacturing methods and overall market potential.
Considering the Students' Voice takes us into a varied international and today also national pedagogical movement. The issue relating to the promotion of Students' Voice research paths with young people with disabilities is delicate. The authors, after a presentation of the movement, address the important issues of ethics and methodological critical issues in the research paths within the Special Pedagogy. It is important to highlight that also in Special Pedagogy research the focus must be not just to ‘listening the students voice', but also to help students to become ‘change agents', because they are the potential of transformation.
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