(Phys.org) -- While the largest contributor to anthropogenic greenhouse gas emissions is the power industry, the second largest is the more often overlooked cement industry, which accounts for 5-6% of all anthropogenic CO2 ...
Nature often offers promising inspiration for biomimetic man-made materials. In a new report now published in Advanced Science, Faheng Wang and a team of scientists in advanced materials, engineering and science in China ...
A new study involving the University of East Anglia (UEA) shows that cement structures are a substantial but overlooked absorber of carbon emissions - offsetting some of those emitted during cement production itself.
Environment
Nov 21, 2016
0
535
(Phys.org) —In a move that would make the Alchemists of King Arthur's time green with envy, scientists have unraveled the formula for turning liquid cement into liquid metal. This makes cement a semi-conductor and opens ...
Condensed Matter
May 27, 2013
5
0
(PhysOrg.com) -- Fritz Vollrath and colleagues from Oxford University have been analyzing the gooey material produced by tiny amphipods known as Crassicorophium bonellii, a small shrimp-like creature that produces the goo ...
(PhysOrg.com) -- In the 2,000 or so years since the Roman Empire employed a naturally occurring form of cement to build a vast system of concrete aqueducts and other large edifices, researchers have analyzed the molecular ...
Nanomaterials
Sep 9, 2009
5
0
The richest one percent of the global population are responsible for the same amount of carbon emissions as the world's poorest two-thirds, or five billion people, according to an analysis published Sunday by the nonprofit ...
Environment
Nov 20, 2023
12
738
In the quest to build better for the future, some are looking for answers in the long-ago past.
Archaeology
Oct 3, 2023
0
95
A viable formula for a carbon-negative, environmentally friendly concrete that is nearly as strong as regular concrete has been developed at Washington State University.
Materials Science
Apr 18, 2023
1
390
Sustained space exploration will require infrastructure that doesn't currently exist: buildings, housing, rocket landing pads.
Space Exploration
Aug 10, 2022
0
247
In the most general sense of the word, a cement is a binder, a substance which sets and hardens independently, and can bind other materials together. The word "cement" traces to the Romans, who used the term "opus caementicium" to describe masonry which resembled concrete and was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick additives which were added to the burnt lime to obtain a hydraulic binder were later referred to as cementum, cimentum, cäment and cement. Cements used in construction are characterized as hydraulic or non-hydraulic.
The most important use of cement is the production of mortar and concrete - the bonding of natural or artificial aggregates to form a strong building material which is durable in the face of normal environmental effects.
Cement should not be confused with concrete because the term cement explicitly refers to the dry powder substance. Upon the addition of water and/or additives the cement mixture is referred to as concrete, especially if aggregates have been added.
This text uses material from Wikipedia, licensed under CC BY-SA
