**Preface to "Eco-Friendly Materials for Civil Construction: Utilization and Advantages"**

It is unsustainable for Planet Earth to possess societies with a lifestyle that is increasingly consumerist and predatory to the environment. The linear economy has failed as a viable form of human development, as it entails a huge generation of waste and the consequential negative impact on the environment. We currently consume poorly designed and energy-inefficient products that do not have adequate reusability, and therefore the development of sustainable materials is mandatory as one of the pillars for the transition from a linear to a circular economy.

This Special Issue is dedicated to papers from academic researchers working on multidisciplinary experiments, as well as modeling related to environmental sustainability. Papers on construction materials used worldwide are encouraged aiming at improving efficiency, productivity, and competitiveness in world markets.

For this Special Issue, both scientific and technical papers advanced in understanding on eco-friendly building materials, which might promote a saving in energy, as well as pollutants reduction in the extraction of raw materials, manufacturing process, or in the final application. These building materials can be more durable and also incorporated with urban, agricultural, or industrial wastes.

The editors of this book express their thanks and gratitude to Sustainability staff for giving the Special Issue editors the opportunity to publish this book. The editors also thank the publisher, MDPI, who produced the book, and the authors.
