| 摘要: | 不幸的是，水泥和混凝土行業是溫室氣體排放的重要貢獻者。我們把結構維持在很高的位置，但我們也處於為子孫後代製造黑暗的最後階段，我們不會阻止它，因為它有助於經濟增長。氣候變化正處於高峰期；由於全球平均地球溫度升高，海洋水位正在上升，而我們正處於大規模毀滅的末期。為了減少這種溫室氣體排放，我們應該在製造混凝土時尋找一些替代品，這是貢獻者之一。這項研究的重點是可以減少二氧化碳排放的混凝土結構的可持續和經濟發展。 在這項研究中，我們將在一定程度上使用一些 OPC（普通波特蘭水泥）的替代品，如粉煤灰、矽粉和磨碎的高爐礦渣 (GGBS)。研究這些材料在混凝土中替代水泥在環境可持續性方面的可行性。在本研究中，我們將使用粉煤灰、矽粉和 GGBS 以 10% 到 30% 的增加百分比作為水泥的替代品，以觀察混凝土的力學性能。作為水泥的生產，GGBS、粉煤灰和矽粉會產生其生產重量的 95.9%、15.5%、9.3% 和 1.4% 的 CO2。水泥和其他添加劑的碳排放量差異巨大。因此，在不影響安全性和適用性的情況下，可以在一定程度上使用這些材料作為水泥的替代品。 在這項研究中，共澆注了 120 個樣品，其中包括 90 個抗壓強度樣品和 30 個混凝土透水性樣品。實驗結果表明，本研究中觀察到的 GGBS 置換 30% 達到最高強度，而矽粉置換 30% 達到最低強度。
Unfortunately, the cement and concrete industries are significant contributors to greenhouse gas emissions. We are holding the structures very high, but we are also at the very last stage of creating darkness for future generations, and we are not going to stop this because it helps in growing the economy. Climate change is at its peak; the ocean's water level is rising due to an increase in the global average earth temperature, and we at the very end of mass destruction. To reduce this greenhouse emission, we should look for some alternatives in manufacturing concrete, which is one of the contributors. This research focuses on the sustainable and economic development of concrete structures that can reduce the emission of Co2. In this research, we will use some alternatives of OPC (ordinary Portland cement) to some extent, like fly ash, silica fumes, and Ground granulated blast furnace slag (GGBS). To examine the feasibility of these materials in the concrete in the replacement of cement in terms of sustainability of the environment. In this study, we will use Fly ash, silica fume, and GGBS in the increasing percentage of 10% to 30% as the replacements of the cement to observe the mechanical properties of the concrete. As production of cement, GGBS, fly ash, and silica fume produces 95.9%, 15.5%, 9.3%, and 1.4% of CO2 of their produced weight. The difference in carbon emissions of cement and other additives is huge. So, it is an opportunity to use these materials as a replacement of cement a certain extent without compromising the safety and serviceability. In this study, a total 120 number of samples have been cast that includes 90 samples for compressive strength and 30 samples for the water permeability of concrete. The experimental results show that 30% replacement of GGBS observed to achieve the highest strength and 30% silica fumes replacement achieved the lowest strength in this study. |
