| 摘要 |
Steps for estimating the carbon dioxide emission quantity of concrete includes a material step, a material transporting step, a ready-mixed concrete transporting step, and pacing step. Each step calculates the energy consumption through two analyses by material and by process and estimates the quantity of CO2. When estimating the quantity of concrete CO2 emission in the placing step, the difference in energy consumption according to the pressure of a pump car is considered, and the quantity of CO2 emission in the placing step is estimated by generating an average energy consumption of the pump car for each cubic meter of concrete. The present invention studies the pump car mechanism and efficiency of the placing step, uses the pressure and engine output of a pump car to derive an interaction formula with the energy consumption, and estimates the quantity of the CO2 emission in the placing step. [Reference numerals] (AA) Material collecting step;(BB) Aggregate;(CC) Cement;(DD) Material transporting step;(EE) Aggregate transporting;(FF) Cement transporting;(GG) Manufacturing step;(HH) Concrete manufacturing;(II) Concrete transporting;(JJ) Placing step |
