KNOW?

Portland

Cement

Association

CO2Did you

U.S. cement manufacturing contributes

of man-made CO2 in the U.S.

5%4%3%2%1.5% 2006 U.S. EPA Sector Strategies

ReportCO2

Composition

26% sand (fine aggregate)

7-15% Portland Cement

6% air41% crushed stone or gravel (coarse aggregate)

16% water

33%

Manufacturing improvements have reduced the amount of CO2 generated by

since 1975

300,000 cars

The annual equivalent emissions saved by 2004 ASTM

C150 specification change

Second only to water, concrete is the most widely used man-made material. . .

…more than all other building materials combined

World Business Council for Sustainable Development

125 million

Estimated amount of concrete recycled each year

Construction Materials Recycling Association

20 milliontons

of recycled industrial by-products used by cement and

concrete industry in 2006

300”

of rain per hour

Rate of infiltration through pervious concrete paving

33%

decrease in energy needed to make a ton of cement since 1975

Reducing the daily high in Los Angeles by 7°F (4°C), a smaller heat island effect is estimated to eliminate two-thirds of smog episodes

Impact of constructing a typical single family home

2-3%Impact of operating that same home for

100 years

97-98%

Which slice of the pie are you working

on?Portland Cement Association