ARET 222 Denison

Saturday, March 27, 2010

Conclusions

Between my three choices of materials in concrete ( tires, glass and plastic ), my conclusion is that glass or plastic would be the best choice. Both glass and plastic increase the compressive strength in concrete, which is vital in building foundation walls.

To further test these methods I plan to go to the local cement plan and test my theories on compressive strengths. I will also test other benefits such as life expectancy, resistance to water and sound and how these materials react to kamloops temperatures.

Pros and Cons of Plastic in Concrete

Pros

- Extreme versatility and ability to be tailored to meet specific technical needs.
- Lighter weight than competing materials reducing fuel consumption during transportation.
- Durability and longevity.
- Resistance to chemicals, water and impact.
- Excellent thermal and electrical insulation properties.
- Comparatively lesser production cost.
- Unique ability to combine with other materials like adhesives.
- Low density and high strength
- Non degradable
- Improves Compressive strength
- Increases in strength with time

Cons

- Potential harmful chemicals
- Decreases in strength with higher temperatures

Youtube Video of Reinforced Recyled Concrete

http://www.youtube.com/watch?v=Rgnef_xd6jk

Updated Theosis Question

Updated Theosis Question- What is the best recycleable material that can be mixed in concrete for foundations in Kamloops, B.C..

I will be compairing recycled tires, plastic and glass and their compressive strengths once mixed in concrete

Original Graphic

Thursday, March 11, 2010

Glass aggregate in Concrete

Doing a little more research it looks like recycled glass in concrete increases the compressive strength of the cement.

Pros
-Fine glass is better than course glass
-Cement gets stronger in higher temperatures
-Cement looks glossier
-Resistance to abrasion
-Durable

Cons
- No recycled glass plant in Kamloops

Pros and Cons of Recycled tires in Concrete

Pros
-Rubberized Concrete has a long life expectancy
-Cheaper
-Only need about half the amount to achieve the same strength
-Surface gives a little
-Less concrete is used

Cons
-Difficult to apply
-May pose a hazard to workers working with it
-Reduces compressive strength therefore not good for foundations
-Loss of stiffness

Academic References

Atkins, H.N. (1997). Highway materials,soils, and concretes. Upper Saddle River, N.J: Prentice Hall.
British Columbia Building Code (2006), Queen's Printer of British Columbia, British Columbia, Canada
Canadian Standards Association. (1970) Concrete materials and methods of concrete construction and methods of test for concrete. Rexdale, Ont: Canadian Standards Association.
Kralj, D. (2009). Experimental study of recycling lightweight concrete with aggregates containing expanded glass. Process Safety and Environmental Protection, 87(4), 267-273.
Li, G. e. (2004). Development of waste tire modified concrete. Cement and Concrete Research, 34(12), 2283-2289.
Marotta, T.W., & Herubin, C.A. (1997) Basic construction materials, 5th ed. Upper Saddle River, N.J.: Prentice Hall.
Shao, Y., Lefort, T., Moras, S., & Rodriguez, D. (2000). Studies on concrete containing ground waste glass. Cement and Concrete Research, 30(1), 91-100.
Siddique, R., Khatib, J., & and Kaur, I. (2008). Use of recycled plastic in concrete. Waste Management, 28(10), 1835-1852. (Three Types of Concrete Foundations)
Terro, M. J. (2006). Properties of concrete made with recycled crushed glass at elevated temperatures . Building and Environment, 41(5), 633-639.
William, R.R. (1981) Coal fly ash : a review of the literature and proposed classification system with emphasis on environmental impacts. Champaign, Il : State Geological Survey Division.

Non-Academic References

Alternatives to Tire Incineration. (n.d.). Retrieved March 15, 2010, from Energy Justice Network: http://www.energyjustice.net/tires/solutions.html
Compressive Strength of Concrete. (n.d.). Retrieved March 20, 2010, from Chest of Books: http://chestofbooks.com/architecture/Cyclopedia-Carpentry-Building-4-6/95-Compressive-Strength-of-Concrete.html
Concrete in Practice. (n.d.). Retrieved March 20, 2010, from NRMCA: http://nrmca.org/aboutconcrete/cips/35p.pdf
Early Concrete Strength Determination for Concrete Foundation Systems Using Maturity Testing. (2005, July). Retrieved March 20, 2010, from The International Association of Foundation Drilling: http://www.adsc-iafd.com/i4a/pages/index.cfm?pageid=3438
Green Building Resources. (n.d.). Retrieved March 20, 2010, from American Concrete Institute: http://www.concrete.org/technical/green-building-resources.htm
Life Expectancy of Household Components. (n.d.). Retrieved March 20, 2010, from Old House Web: http://www.oldhouseweb.com/how-to-advice/life-expectancy.shtml
Recycled Content. (n.d.). Retrieved March 20, 2010, from Concrete Thinker: http://concretethinker.com/solutions/Recycled-Content.aspx
Recycled Glass in Concrete. (n.d.). Retrieved March 20, 2010, from Concrete Ideas: http://www.concreteideas.com/recycled-glass-in-concrete
Recycled Glass in Portland Cement Concrete. (n.d.). Retrieved March 20, 2010, from Clean Washington Centre: http://www.cwc.org/gl_bp/gbp4-0501.htm
Three Types of Concrete Foundations. (n.d.). Retrieved March 20, 2010, from Concrete Network: http://www.concretenetwork.com/concrete/foundations.htm