Đăng nhập
 
Tìm kiếm nâng cao
 
Tên bài báo
Tác giả
Năm xuất bản
Tóm tắt
Lĩnh vực
Phân loại
Số tạp chí
 

Bản tin định kỳ
Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Tạp chí quốc tế 2017
Số tạp chí 36(2017) Trang: 83-92
Tạp chí: Environmental Progress & Sustainable Energy

This paper presents the results of a study on the effects of the solids-to-liquid (S/L) ratio and of curing temperature on strength development, phase composition, and microstructure in geopolymers that prepared using a mixture of class-F fly ash (FA) and residual rice husk ash (RHA) and a solution of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3). The samples were prepared at various S/L ratios (2.4–2.8) and then cured at various curing temperatures (room temperature (RT)–90°C) in order to investigate these effects. A compressive strength test was conducted on the samples after the curing process in order to determine the development of strength over time. Moreover, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) were used to examine the microstructural properties of the samples. Further, scanning electron microscopy (SEM) was used to characterize the surface morphologies of the samples. The present study found that the S/L ratio and the curing temperature had significant effects on the properties of the geopolymer samples. The compressive strength of all of the geopolymer samples increased with curing age. The highest strength obtained from the samples that were prepared at an S/L ratio of 2.6 and a curing temperature of 60°C. XRD and FTIR analyses showed that the major crystalline phases presented in the resultant samples were quartz, mullite, and cristobalite with the additional presence of minor zeolite phases. The results of the present study support the use of FA and RHA as solid waste materials in the preparation of geopolymers.

Các bài báo khác
Số tạp chí 1(2017) Trang: 106-115
Tạp chí: Southeast Asia Review of Economics and Business
Số tạp chí 62(2017) Trang: 189-195
Tạp chí: Journal of the Faculty of Agriculture, Kyushu University
Số tạp chí Volume 17, no 1(2017) Trang: 923-932
Tạp chí: Journal of Power Electronics
Số tạp chí Volume 53, issue 2(2017) Trang: 1289 - 1299
Tạp chí: IEEE Transactions on Industry Applications
Số tạp chí Vol. 1, No.15(2017) Trang: 271-275
Tạp chí: Renewable Energy and Power Quality Journal
Số tạp chí Vol. 1, No.15(2017) Trang: 267-270
Tạp chí: Renewable Energy and Power Quality Journal
Số tạp chí 75(2017) Trang: 2520-2526
Tạp chí: Water Science and Technology
Số tạp chí Volume 123, Issue 1(2017) Trang: 96-100
Tạp chí: Journal of Bioscience and Bioengineering
Số tạp chí Vol-3, Issue-6(2017) Trang: 939-943
Tác giả: Trần Vang Phủ
Tạp chí: Imperial Journal of Interdisciplinary Research (IJIR)
Số tạp chí Volume 7, Issue 3 Ver. IV (May - June 2017)(2017) Trang: 34-39
Tạp chí: IOSR Journal of Research & Method in Education
Số tạp chí Volume 7, Issue 3 Ver. III (May - June 2017)(2017) Trang: 81-86
Tạp chí: IOSR Journal of Research & Method in Education
Số tạp chí Volume 7, Issue 3 Ver. II (May - June 2017)(2017) Trang: 61-66
Tạp chí: IOSR Journal of Research & Method in Education
Số tạp chí Volume 7, Issue 3 Ver. II (May - June 2017)(2017) Trang: 55-60
Tạp chí: IOSR Journal of Research & Method in Education
Số tạp chí 202(2017) Trang: 455–463
Tạp chí: Fuel
Số tạp chí Vol.3, Issue 5(2017) Trang: 1481-1485
Tác giả: Trần Vang Phủ
Tạp chí: Imperial Journal of Interdisciplinary Research (IJIR)
Số tạp chí 9(2017) Trang: 51551-51554
Tác giả: Lê Long Hậu
Tạp chí: International Journal of Current Research


Vietnamese | English






 
 
Vui lòng chờ...