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Recycled Glass Use in Concrete Perry Riblet
Submitted 2014-02-17 22:02:36
The concrete industry is constantly searching for innovations Wholesale Luke Martin Jersey , better performance and ways to lower its carbon footprint. Amazingly, cement production accounts for about 5% of the total CO2 emitted in the atmosphere around the world.

CO2 Emissions

Yet another method to look at it is the fact that each lot of cement produced outputs a lot of CO2. A lot of it comes from the high melting temperature (2500掳F) as well as from the process of decarbonation of limestone. Thus to lower the carbon footprint, the industry would definitely have to either change the cement production process or to use less cement in concrete mixtures. Much research has been done around the world in finding how to dispose of industrial byproducts like fly ash or perhaps silica fume and use them in creating concrete. Thus much that these are now commonly found in most concrete mixtures. What other information can be recycled into cement?

Recycled glass

Meet recycled glass

In the You, just 33% of the glass products has been recycled and only 40% of the glass that is collected is actually recycled. Part of the reason might be that glass recycling is still costly due to transportation as well as color sorting. Crushed glass in large particles (larger than 75碌m) produces an expansive gel that results in concrete cracking, thus the particle size must be finer than 75碌m to not create an alkali silicate response. When this happens, mortar durability is increased. The only exception to this really is the utilization of large glass particles in making concrete kitchen counter tops. These have become popular as they combine cost saving, green practices, beautiful and unique results.

A better solution is glass powder as it has been found to improve concrete's compressive strength as well as durability. Yet another great discovery was the water reducing effect of glass powder, leaving more water to improve the cement's workability.

Michigan State University has been conducting extensive research in their labs on the utilization of glass in concrete on their campus. They have managed to replace regarding 20 % of the cement utilized to produce concrete by milled Wholesale Eetu Luostarinen Jersey , or finely ground glass. The resulting concrete becomes lighter but has the same appearance with regular concrete, maybe a little lighter in color. More research is underway to test all variables required to make this new element a standard in the industry. To read more on this, two papers were published on the durability of the mixture, one in the Diary of Solid Waste Technology and Management, and the other in the Diary of Construction and Building Materials of Michigan State College.

The American Journal of Engineering Research (AJER) conducted workability test, density test as well as compressive strength test on waste glass powder in concrete. They also found that glass powder does increase the workability, density and compressive strength of concrete. Read the complete report here.

Europe and India have also effectively spearheaded research in this emerging field. The study conducted by Dr. G.Vijayakumar, Ms H. Vishaliny as well as Dr. D. Govindarajulu at Pondicherry Technology College, in Pondicherry India Wholesale Martin Necas Jersey , had the following very positive conclusions:

"Substitution of glass powder in cement by 20%, 30% as well as 40% increases:
the flexural strength by 83.07%, 99.07% and 100% respectively.
the compressive strength by 19.6%, 25.3% as well as 33.7% respectively.

Glass powder concrete increases the compressive, tensile as well as flexural strength effectively, when compared with conventional concrete. Very finely ground glass has been shown to be excellent filler." The complete report can be read here*

The Centre of Sustainable Development in Quebec, Canada was an early adopter of powder glass in concrete, which allowed them to reach a LEED Platinum certification. They at the same time managed to reduce the amount of concrete used as well as the amount of glass dumped in landfills.

It continues to be too early to know whether or not or not glass can be used for shotcrete applications. Not enough testing as well as research has been done on wet or dry mix shotcrete. However, promising results were discovered in early findings for dry blend on rebound and reinforcement of bar encapsulation in the placement phase.

Stay abreast on new technologies as well as the newest research with United Equipment Sales. With over 40 years in the industry and all aspects concrete Wholesale Teuvo Teravainen Jersey , you can help you on your own next concrete job, solve challenges and find you a great deal on concrete pumps. Author Resource:- United Equipment Sales is a leader in the sales and repair of concrete pumps with over 40 years of experience in the industry. Find out more at: http:Unitedequipmentsales
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