AGH University of Science and Technology, Krakow, Poland.
Environ Sci Pollut Res Int. 2019 Feb;26(4):3980-3990. doi: 10.1007/s11356-018-3804-2. Epub 2018 Dec 14.
The development of concrete technology results in a new generation of cement-based concrete such as high-performance concrete, self-compacting concrete and high-performance, self-compacting concrete. These concretes are characterised by better parameters not only in terms of strength and durability but also rheology of the mixtures. Obtaining such properties requires the adoption of a different composition and proportion of ingredients than ordinary concrete. The greater share of cement in these concretes causes an increase in the energy consumption and emissions (per unit of concrete volume) at the production stage. However, use of new generation concrete allows for a reduction of overall dimensions of a structural element, due to the increased strength parameters. Such a solution may finally result in lower consumption of resources and energy, as well as a decrease of gas emissions. The article presents the results of a comparative environmental analysis of ordinary and new generation concrete structures.
混凝土技术的发展催生了新一代的水泥基混凝土，如高性能混凝土、自密实混凝土和高性能自密实混凝土。这些混凝土的特点是不仅在强度和耐久性方面，而且在混合物的流变性方面具有更好的参数。获得这些性能需要采用与普通混凝土不同的成分和比例。这些混凝土中水泥的份额较大，导致生产阶段的能源消耗和排放（每单位混凝土体积）增加。然而，由于强度参数的提高，使用新一代混凝土可以减少结构构件的整体尺寸。这样的解决方案最终可能会导致资源和能源消耗的减少，以及气体排放的减少。本文介绍了普通和新一代混凝土结构的环境比较分析结果。
