Readable recording medium arithmetic unit of carbon dioxide emissions caused by the use of concrete, carbon dioxide emissions calculation method, the computer and carbon dioxide emissions calculation program

摘要

PROBLEM TO BE SOLVED: To facilitate comparison of carbon-dioxide emissions between a case of using blended cement and a case of using Portland cement.SOLUTION: A computing method for carbon-dioxide emissions includes: a step for computing manufacture-based carbon-dioxide emissions that are emitted at the time of manufacture, with respect to each of multiple constituent materials constituting concrete, by multiplying a used amount of designated constituent material by an original emission unit by manufacture which shows a carbon-dioxide emission per unit weight generated when manufacturing the constituent materials at a designated manufacturing plant; a step for also computing transportation-based carbon-dioxide emissions which are emitted at the time of transportation, with respect to each of the constituent materials, by multiplying designated transportation distance by an original emission unit by transportation which shows a carbon-dioxide emission per unit distance generated at the time of transportation by designated transportation means; and a step for using display means 3 to display the computed caron-dioxide emissions at the time of manufacturing or the computed carbon-dioxide emissions at the time of transportation by comparison with reference carbon-dioxide emissions when using reference predetermined constituent materials.