Low CO cement for sustainable concrete

Authored by: Maria C.G. Juenger

Routledge Handbook of Sustainable and Resilient Infrastructure

Print publication date:  December  2018
Online publication date:  December  2018

Print ISBN: 9781138306875
eBook ISBN: 9781315142074
Adobe ISBN:

10.4324/9781315142074-20

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Abstract

The production of portland cement, the world’s most used building material, is responsible for approximately 5 percent of manmade CO2 emissions. Reduction of CO2 from cement manufacturing can be achieved through a variety of strategies, of which one of the most urgent and important is partial substitution of the cement clinker with supplementary cementitious materials. In this chapter, the problem of CO2 emissions from cement production is summarized along with the possible strategies to reduce emissions. New and emerging sources of supplementary cementitious materials to meet increasing demand are presented, including reclaimed and remediated fly ashes, natural pozzolans, and calcined clay-limestone blends.

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