schneiderism

As evidenced from the graph above (via The Oil Drum), it goes to China. 50% of the cement produced last year was produced and ultimately used by China, which equates to 1.3 gigatons of cement. China only exported 33 million tons of cement out of that 1.3 gigatons. Just as an FYI, a gigaton is one billion tons. India was a distant second at .3 gigatons. With the growth and expansion of the nascent infrastructure that has been underway in China, especially in preparation for the Olympics, this probably is not too surprising, but the enormous gap between China and the entire rest of the world is definitely noteworthy. Additionally, something startling that I learned is that each ton of cement produced also produces a ton of the greenhouse gas CO2. In 2007 cement consumption in China produced 1.3 gigatons of CO2, which I’m guessing is a helluva lot of CO2 to be produced by one industry in one nation.

Putting these numbers into context, and perhaps as an explanation for the relatively small production of cement in the United States, is the reality that we invested in and built up our infrastructure during the 1940’s, 50’s and 60’s. That effort also required massive amounts of cement, tonnages that I am guessing are comparable to China’s recent production totals. With our infrastructure largely in place the requirement for massive quantities of cement in the U.S. just is not there, relative to the demand for cement in support of growth in China. That is, until the escalation in the crumbling of our streets, highways, bridges and interstates begins to necessitate more comprehensive replacement and expansion, something that certainly seems to be gaining more momentum nationwide as our national infrastructure moves into its sixth decade of intense use.

I very highly recommend subscribing to The Oil Drum if you have any interest in energy policy, peak oil, and the social, political, and economic implications of our dependence on foreign oil. The coverage on this blog is comprehensive and the writing is excellent.