Featured Research

from universities, journals, and other organizations

'Green' Research Results In New Geopolymer Concrete Technology

Date:
October 1, 2009
Source:
Louisiana Tech University
Summary:
Researchers in Louisiana are conducting innovative research on geopolymer concrete and providing ways to use a waste byproduct from coal fired power plants and help curb carbon dioxide emissions.

This is a 5,000 lb. geopolymer concrete block cast using fly ash.
Credit: Louisiana Tech University

Dr. Erez Allouche, assistant professor of civil engineering at Louisiana Tech University and associate director of the Trenchless Technology Center, is conducting innovative research on geopolymer concrete and providing ways to use a waste byproduct from coal fired power plants and help curb carbon dioxide emissions.

Inorganic polymer concrete (geopolymer) is an emerging class of cementitious materials that utilize "fly ash", one of the most abundant industrial by-products on earth, as a substitute for Portland cement, the most widely produced man-made material on earth.

Portland cement production is a major contributor to CO2 emissions as an estimated five to eight percent of all human-generated atmospheric CO2 worldwide comes from the concrete industry. Production of Portland cement is currently toping 2.6 billion tons per year worldwide and growing at 5 percent annually.

Geopolymer concrete has the potential to substantially curb CO2 emissions, produce a more durable infrastructure capable of design life measured in hundreds of years instead of tens, conserve hundreds of thousands of acres currently used for disposal of coal combustion products, and protect aquifers and surface bodies of fresh water via the elimination of fly ash disposal sites.

In comparison to ordinary Portland cement (OPC), geopolymer concrete (GPC) features greater corrosion resistance, substantially higher fire resistance (up to 2400 F), high compressive and tensile strengths, a rapid strength gain, and lower shrinkage.

Perhaps Geopolymer concrete's greatest appeal is its life cycle greenhouse gas reduction potential; as much as 90% when compared with OPC.

This technology, along with other important research being conducted to meet future energy needs, will be highlighted at Louisiana Tech will feature this technology at its Energy Systems Conference on November 5 at the Technology Transfer Center in Shreveport.


Story Source:

The above story is based on materials provided by Louisiana Tech University. Note: Materials may be edited for content and length.


Cite This Page:

Louisiana Tech University. "'Green' Research Results In New Geopolymer Concrete Technology." ScienceDaily. ScienceDaily, 1 October 2009. <www.sciencedaily.com/releases/2009/09/090929141534.htm>.
Louisiana Tech University. (2009, October 1). 'Green' Research Results In New Geopolymer Concrete Technology. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2009/09/090929141534.htm
Louisiana Tech University. "'Green' Research Results In New Geopolymer Concrete Technology." ScienceDaily. www.sciencedaily.com/releases/2009/09/090929141534.htm (accessed July 25, 2014).

Share This




More Matter & Energy News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

TSA Administrator on Politics and Flight Bans

TSA Administrator on Politics and Flight Bans

AP (July 24, 2014) TSA administrator, John Pistole's took part in the Aspen Security Forum 2014, where he answered questions on lifting of the ban on flights into Israel's Tel Aviv airport and whether politics played a role in lifting the ban. (July 24) Video provided by AP
Powered by NewsLook.com
Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Algonquin Power Goes Activist on Its Target Gas Natural

Algonquin Power Goes Activist on Its Target Gas Natural

TheStreet (July 23, 2014) When The Deal's Amanda Levin exclusively reported that Gas Natural had been talking to potential suitors, the Ohio company responded with a flat denial, claiming its board had not talked to anyone about a possible sale. Lo and behold, Canadian utility Algonquin Power and Utilities not only had approached the company, but it did it three times. Its last offer was for $13 per share as Gas Natural's was trading at a 60-day moving average of about $12.50 per share. Now Algonquin, which has a 4.9% stake in Gas Natural, has taken its case to shareholders, calling on them to back its proposals or, possibly, a change in the target's board. Video provided by TheStreet
Powered by NewsLook.com
Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

    Health News

      Environment News

        Technology News



          Save/Print:
          Share:

          Free Subscriptions


          Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

          Get Social & Mobile


          Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

          Have Feedback?


          Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
          Mobile: iPhone Android Web
          Follow: Facebook Twitter Google+
          Subscribe: RSS Feeds Email Newsletters
          Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins