Posts Tagged ‘concrete’

Self-Healing Concrete

Thursday, June 3rd, 2010

One of the best ways to be green is to make the most of what is already being used.  It is hard to do with concrete due to its brittle nature.  Once it is broken, it is hard to fix without costly man hours and the use of more natural resources.

However, Michelle Pelletier, a graduate student at the University of Rhode Island, has discovered a way for concrete to heal itself.  Pelletier found that after fracturing concrete mixed with a microencapsulated sodium silicate agent into standard concrete can cause the concrete to regain up to 26 percent of its original strength.  It is speculated that a higher concentration of the sodium silicate will result in a higher rebounding strength. read more »

Fly Ash Concrete – Eco Friendly And Lasts Longer

Thursday, October 1st, 2009

Fly AshMost concrete produced is from portland cement, and it consumes more energy and pollutes more than any other industry including steel and plastics.  It contributes 5-8% of all greenhouse gases just by itself, and prduction is growing at about 5% annually.

Fly ash is a waste product of a coal combustion plant.  It is the non-combustible portion of coal that used to be released into the air before through the smoke stack before the government put more strict regulations on what can be release into the atmosphere.  The particles themselves are spherical and smooth and more fine than cement particles. read more »

Eco Friendly Concrete Countertops – 5 Pointers

Friday, August 21st, 2009

concrete-countertopsConcrete and paper countertops are some of the hottest trends in environmentally friendly design.  However, not all concrete is made the same.  Some can be more eco friendly than others.  Here are some ways to make sure your concrete countertops are green.

1.  Make sure there is as little portland cement in the mix as possible.  Portland cement takes a lot of energy to produce, and thought the end product may be green, the process is not. read more »