ABSTRACT
Facing with the increasingly serious challenge of global warming and the depletion of the natural resource, sustainable development of the concrete industry has already been a research hotspot in construction sector, it is imperative to produce concrete based on an index of emission reduction in the future. The usage of fly ash in concrete has been proposed as an important factor for “greening of the concrete industry”[4]. Many previous studies have pointed out that the addition of fly ash in the concrete can reduce the total CO2 emissions, and energy consumption, on the premise that the basic performance of concrete is satisfied. However, concrete is a complex composite, in contrast to many other major construction materials, in the mix recipes, the contents of its other constituents will change with the change of a constituent, so we cannot simply assert that the addition of fly ash can reduce the concrete CO2 emission. Therefore, in this paper, the two most important factors, i.e. the compressive strength and the fly ash content were analyzed, and the relationships between compressive strength and CO2 emission, fly ash content and CO2 emission were obtained. In addition, similar research was also conducted to analyze the effect of the compressive strength and the fly ash content on the cost.
