It is the most widely used product in the world. Cement is indispensable yet its reputation has become quite tainted in the course of the ongoing climate debate. Mixed with water, sand and gravel, it results in concrete, ...
Materials Science
Jun 4, 2020
0
50
Fly ash generated by coal-fired power stations is an environmental headache, creating groundwater and air pollution from vast landfills and ash dams. Some of the waste product can be repurposed into geopolymer concrete, such ...
Polymers
May 7, 2020
0
6
Hope in the midst of crisis. Overflowing landfill sites in Asia may prove to be goldmines for local cement producers. So say researchers at the Norwegian research organization, SINTEF, who have extensive experience with the ...
Materials Science
Apr 22, 2020
5
22
There's a lot the average person doesn't know about concrete. For example, it's porous; it's the world's most-used material after water; and, perhaps most fundamentally, it's not cement.
Materials Science
Apr 6, 2020
6
371
When it comes to encouraging manufacturers to reduce their carbon dioxide (CO2) emissions, a carrot might be more effective than a stick. That's the approach taken by a recent U.S. tax code rule that offers credits to companies ...
Other
Feb 26, 2020
0
8
Researchers have developed a nondestructive and noninvasive optical technique that can determine the setting times for various types of cement paste, which is used to bind new and old concrete surfaces. The new method could ...
Optics & Photonics
Jan 16, 2020
0
8
A team of chemists at McMaster University has discovered an innovative way to break down and dissolve the rubber used in automobile tires, a process which could lead to new recycling methods that have so far proven to be ...
Materials Science
Jan 13, 2020
0
94
As the most widely used construction material, concrete is indispensable in the development of infrastructure, industry and housing. It's a mixture of aggregates (sand, gravel, crushed stone), water and cement, and whose ...
Materials Science
Dec 19, 2019
0
14
Concrete is the most widely used man-made material, commonly used in buildings, roads, bridges and industrial plants. But producing the Portland cement needed to make concrete accounts for 5-8% of all global greenhouse emissions. ...
Materials Science
Nov 19, 2019
0
10
A key part of drilling and tapping new oil wells is the use of specialized cements to line the borehole and prevent collapse and leakage of the hole. To keep these cements from hardening too quickly before they penetrate ...
Materials Science
Nov 13, 2019
0
11
