Riddle of Cement's Structure is Finally Solved

From MIT News:

Concrete is the world’s most widely used construction material, so abundant that its production is one of the leading sources of greenhouse gas emissions. Yet answers to some fundamental questions about the microscopic structure and behavior of this ubiquitous material have remained elusive.  

Concrete forms through the solidification of a mixture of water, gravel, sand, and cement powder. Is the resulting glue material (known as cement hydrate, CSH) a continuous solid, like metal or stone, or is it an aggregate of small particles...

... Roland Pellenq, a senior research scientist in MIT’s department of civil and environmental engineering, director of the MIT-CNRS lab 2 hosted by the MIT Energy Initiative, and a co-author of the new paper, says the work builds on previous research he conducted with others at the Concrete Sustainability Hub (CSHub) through a collaboration between MIT and the CNRS. “We did the first atomic-scale model” of the structure of concrete, he says, but questions still remained about the larger, mesoscale structure, on scales of a few hundred nanometers. The new work addresses some of those remaining uncertainties, he says. (full article)

Comments (0)

This post does not have any comments. Be the first to leave a comment below.


Post A Comment

You must be logged in before you can post a comment. Login now.

Featured Product

New Technologies Driving Industry Transformation

New Technologies Driving Industry Transformation

The COMVEC™ Technology Connection is the only North American event that addresses vehicles and equipment spanning the on-highway, off-highway, agricultural, construction, industrial, military and mining sectors. The content for this event is driven by the need to reduce C02 emissions and improve vehicle efficiencies for fuel savings. COMVEC covers the latest and critical need-to-know information impacting global commercial vehicles today and in the future. Make plans to join 850+ technical experts and business leaders for 3 days of professional development in the way of expert-led panel discussions, compelling technical sessions, influential keynotes, world-class networking, and a technology-driven exhibit show floor.