Performance of Geopolymer Concrete when Exposed to Marine Environment

Joint Conference on Green Engineering Technology & Applied Computing 2019

工业技术（总论）;计算机科学

Hannanee Ahmad Zaidi, Fakhryna^1 ; Ahmad, Romisuhani^1 ; Mustafa Al Bakri Abdullah, Mohd^2 ; Faheem Mohd Tahir, Muhammad^2 ; Yahya, Zarina^1 ; Mastura Wan Ibrahim, Wan^1 ; Syauqi Sauffi, Ahmad^1

Faculty of Engineering Technology, Uniciti Alam Campus, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^1

Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^2

关键词: Artificial seawater;    Building applications;    Carbon dioxide emissions;    Curing condition;    Geopolymer concrete;    Marine environment;    OPC concretes;    Portland cement concretes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/551/1/012092/pdf
DOI  :  10.1088/1757-899X/551/1/012092

来源: IOP

【 摘 要 】

Over the decades, concrete is widely known as the most resourceful construction material as it is suitable for many building applications. However, despite its ability to last hundreds of years in many applications, it has been proven that Portland cement concrete poses problems such as carbon dioxide emission and its durability when exposed to sea water, sulphuric soils or freezing weather. As a result, an alternative binder is in need to reduce these problem which nowadays, the uses of geopolymer concrete is promoted. Therefore, this research is intended to investigate the effect of marine environment towards geopolymer concrete and is compared to OPC concrete. By using the same curing conditions, both type of concrete is immersed in artificial seawater for total of 28 days before the properties such as water absorption, density and compressive strength is tested. As a result, despite the similar density, the GPC is found to have lower water absorption and higher compressive strength when compared to OPC concrete. As a conclusion, GPC exhibits a higher resistance to seawater thus, suitable for construction in marine environment when compared to OPC.