Effect of curing type on microstructure and compressive strength of geopolymer mortars

被引：31
作者：
Gultekin, Adil [1 ]
Ramyar, Kambiz [1 ]
机构：
[1] Ege Univ, Engn Fac, Civil Engn Dept, TR-35030 Izmir, Turkey
来源：
CERAMICS INTERNATIONAL | 2022年 / 48卷 / 11期
关键词：
Microwave curing; Energy saving; Pumice; Perlite; Geopolymer; ASH-BASED GEOPOLYMERS; F FLY-ASH; PERFORMANCE; CONCRETE; BEHAVIOR; ENERGY;
D O I：
10.1016/j.ceramint.2022.02.163
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, the compressive strength and microstructure of pumice, perlite, burnt clay and fly ash geopolymer mortars were investigated. Activator solutions with 1.0, 1.2, 1.6 and 2.0 Ms (silica/sodium oxide) ratios as well as 4, 8 and 12% sodium oxide ratios by weight of aluminosilicate material were used. Both oven curing and microwave curing were applied. According to the results, compressive strengths of microwave-cured pumice-, perlite-and burnt clay-based geopolymer mortars were 5.7, 54.7 and 15.5% higher than those of the oven-cured counterparts. However, the strength of fly ash geopolymer reduced upon microwave curing. The energy consumption per unit compressive strength in the microwave-cured mortars was found to be between 77.1-87.0% lower than those of the oven-cured ones, depending on the aluminosilicate type. The changes caused by the curing type in the microstructure were investigated by SEM/EDS, XRD, FT-IR and thermogravimetric analysis.
引用
收藏
页码：16156 / 16172
页数：17
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