Qaidi Shaker, Najm Hadee Mohammed, Abed Suhad M, Ahmed Hemn U, Al Dughaishi Husam, Al Lawati Jawad, Sabri Mohanad Muayad, Alkhatib Fadi, Milad Abdalrhman
Department of Civil Engineering, College of Engineering, University of Duhok, Duhok 42001, Iraq.
Department of Civil Engineering, College of Engineering, Nawroz University, Duhok 42001, Iraq.
Materials (Basel). 2022 Oct 12;15(20):7098. doi: 10.3390/ma15207098.
Geopolymer (GP) concrete is a novel construction material that can be used in place of traditional Portland cement (PC) concrete to reduce greenhouse gas emissions and effectively manage industrial waste. Fly ash (FA) has long been utilized as a key constituent in GPs, and GP technology provides an environmentally benign alternative to FA utilization. As a result, a thorough examination of GP concrete manufactured using FA as a precursor (FA-GP concrete) and employed as a replacement for conventional concrete has become crucial. According to the findings of current investigations, FA-GP concrete has equal or superior mechanical and physical characteristics compared to PC concrete. This article reviews the clean production, mix design, compressive strength (CS), and microstructure (Ms) analyses of the FA-GP concrete to collect and publish the most recent information and data on FA-GP concrete. In addition, this paper shall attempt to develop a comprehensive database based on the previous research study that expounds on the impact of substantial aspects such as physio-chemical characteristics of precursors, mixes, curing, additives, and chemical activation on the CS of FA-GP concrete. The purpose of this work is to give viewers a greater knowledge of the consequences and uses of using FA as a precursor to making effective GP concrete.
地聚合物（GP）混凝土是一种新型建筑材料，可用于替代传统的波特兰水泥（PC）混凝土，以减少温室气体排放并有效管理工业废料。长期以来，粉煤灰（FA）一直被用作地聚合物的关键成分，而地聚合物技术为粉煤灰的利用提供了一种环境友好的替代方案。因此，深入研究以粉煤灰为前驱体制造的地聚合物混凝土（FA-GP混凝土）并将其用作传统混凝土的替代品变得至关重要。根据目前的调查结果，FA-GP混凝土与PC混凝土相比具有同等或更优越的力学和物理性能。本文综述了FA-GP混凝土的清洁生产、配合比设计、抗压强度（CS）和微观结构（Ms）分析，以收集和发布有关FA-GP混凝土的最新信息和数据。此外，本文还将尝试基于先前的研究建立一个综合数据库，阐述前驱体的物理化学特性、混合料、养护、添加剂和化学活化等重要方面对FA-GP混凝土抗压强度的影响。这项工作的目的是让读者更深入地了解使用粉煤灰作为前驱体制备高效地聚合物混凝土的效果和用途。
