Protective Geopolymer Coatings Containing Multi-Componential Precursors: Preparation and Basic Properties Characterization

doi:10.3390/ma13163448

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Protective Geopolymer Coatings Containing Multi-Componential Precursors: Preparation and Basic Properties Characterization
	Jiang, Chenhui ; Wang, Aiying ; Bao, Xufan ; Chen, Zefeng ; Ni, Tongyuan ; Wang, Zhangfu
刊名	MATERIALS
	2020
卷号	13 期号:16
关键词	SIO2/NA2O MOLAR RATIO COMPRESSIVE STRENGTH MECHANICAL-PROPERTIES ALKALINE-SOLUTION PART I CONCRETE NAOH ACTIVATORS RHEOLOGY POWDER
DOI	10.3390/ma13163448
英文摘要	This paper presents an experimental investigation on geopolymer coatings (GPC) in terms of surface protection of civil structures. The GPC mixtures were prepared with a quadruple precursor simultaneously containing fly ash (FA), ground granulated blast-furnace slag (GBFS), metakaolin (MK), and Portland cement (OPC). Setting time, compressive along with adhesive strength and permeability, were tested and interpreted from a perspective of potential applications. The preferred GPC with favorable setting time (not shorter than 120 min) and desirable compressive strength (not lower than 35 MPa) was selected from 85 mixture formulations. The results indicate that balancing strength and setting behavior is viable with the aid of the multi-componential precursor and the mixture design based on total molar ratios of key oxides or chemical elements. Adhesive strength of the optimized GPC mixtures was ranged from 1.5 to 3.4 MPa. The induced charge passed based on a rapid test of coated concrete specimens with the preferred GPC was 30% lower than that of the uncoated ones. Setting time of GPC was positively correlated with eta[Si/(Na+Al)]. An abrupt increase of setting time occurred when the molar ratio was greater than 1.1. Compressive strength of GPC was positively affected by mass contents of ground granulated blast furnace slag, metakaolin and ordinary Portland cement, and was negatively affected by mass content of fly ash, respectively. Sustained seawater immersion impaired the strength of GPC to a negligible extent. Overall, GPC potentially serves a double purpose of satisfying the usage requirements and achieving a cleaner future.
学科主题	Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20608]
专题	2020专题
作者单位	1.Jiang, CH (corresponding author), Hongrun Construct Grp Co Ltd, Shanghai 200235, Peoples R China. 2.Jiang, CH (corresponding author), Zhejiang Huawei Bldg Mat Grp Co Ltd, Hangzhou 310018, Peoples R China. 3.Jiang, CH (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Peoples R China. 4.Jiang, CH (corresponding author), Zhejiang Coll Construct, Dept Construct Engn, Hangzhou 311231, Peoples R China.
推荐引用方式 GB/T 7714	Jiang, Chenhui,Wang, Aiying,Bao, Xufan,et al. Protective Geopolymer Coatings Containing Multi-Componential Precursors: Preparation and Basic Properties Characterization[J]. MATERIALS,2020,13(16).
APA	Jiang, Chenhui,Wang, Aiying,Bao, Xufan,Chen, Zefeng,Ni, Tongyuan,&Wang, Zhangfu.(2020).Protective Geopolymer Coatings Containing Multi-Componential Precursors: Preparation and Basic Properties Characterization.MATERIALS,13(16).
MLA	Jiang, Chenhui,et al."Protective Geopolymer Coatings Containing Multi-Componential Precursors: Preparation and Basic Properties Characterization".MATERIALS 13.16(2020).