mercredi 29 août 2018

Concrete is not as durable as you may think: when cement degrade it’s sand

The World in a Grain: The Story of Sand and How It Transformed Civilization,

The gripping story of the most important overlooked commodity in the world--sand--and the crucial role it plays in our lives. 

After water and air, sand is the natural resource that we consume more than any other--even more than oil. Every concrete building and paved road on Earth, every computer screen and silicon chip, is made from sand. From Egypt's pyramids to the Hubble telescope, from the world's tallest skyscraper to the sidewalk below it, from Chartres' stained-glass windows to your iPhone, sand shelters us, empowers us, engages us, and inspires us. It's the ingredient that makes possible our cities, our science, our lives--and our future. 

And, incredibly, we're running out of it. 

The World in a Grain is the compelling true story of the hugely important and diminishing natural resource that grows more essential every day, and of the people who mine it, sell it, build with it--and sometimes, even kill for it. It's also a provocative examination of the serious human and environmental costs incurred by our dependence on sand, which has received little public attention. Not all sand is created equal: Some of the easiest sand to get to is the least useful. Award-winning journalist Vince Beiser delves deep into this world, taking readers on a journey across the globe, from the United States to remote corners of India, China, and Dubai to explain why sand is so crucial to modern life. Along the way, readers encounter world-changing innovators, island-building entrepreneurs, desert fighters, and murderous sand pirates. The result is an entertaining and eye-opening work, one that is both unexpected and involving, rippling with fascinating detail and filled with surprising characters.

Review


“[An] impassioned and alarming report on sand.... In Beiser's artful telling, the planet is caught up in a vicious, sand-fueled cycle.” — Washington Post 

“Beiser peppers research with first-person interviews in an engaging and nuanced introduction to the ways sand has shaped the world.... stunning.” —NPR 

“Beiser’s eye-opening study clarifies the science and the huge role of sand in heavy and high-tech industry. Perhaps most compelling is his exposé of sand mining, which obliterates islands, destroys coral reefs and marine biodiversity, and threatens livelihoods. A powerful lens on an under-reported environmental crisis.” — Nature 

“Whether in Chippewa Falls, Wisconsin, or India, [Beiser] exhibits a flare for detailing the human drama through prose.” — Los Angeles Review of Books 

“I thought I knew the basics of sustainability, but this lucid, eye-opening book made me feel like a dolt in the best possible aha-moment way: I'd simply never registered how much of the contemporary world—our concrete and glass buildings and asphalt roads and silicone-based digital devices and so much more—is entirely, voraciously sand-dependent. And the looming global sand crisis: who knew?” —Kurt Andersen, author of Fantasyland: How America Went Haywire: A 500-Year History
A fresh history of 'the most important solid substance on Earth, the literal foundation of modern civilization.' Books on a single, familiar topic (salt, cod, etc.) have an eager audience, and readers will find this an entirely satisfying addition to the genre.” — Kirkus Reviews 

The book is at its urgent best in chapters on the black market in sand and the sand mafias that brutally exercise control over resources... Breezily written and with insights on every page, this is an eye-opening look at a resource too often taken for granted.” — Publishers Weekly 

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