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The effect of lime-dried sewage sludge on the heat-resistance of eco-cement

Li, Wen-Quan ; Liu, Wei ; Cao, Hai-Hua ; Xu, Jing-Cheng ; Liu, Jia ; Li, Guang-Ming ; Huang, Juwen

Water science and technology : a journal of the International Association on Water Pollution Research, 2016, Vol.74(1), pp.212-9 [Tạp chí có phản biện]

ISSN: 0273-1223 ; PMID: 27386999 Version:1 ; DOI: 10.2166/wst.2016.196

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  • Nhan đề:
    The effect of lime-dried sewage sludge on the heat-resistance of eco-cement
  • Tác giả: Li, Wen-Quan ; Liu, Wei ; Cao, Hai-Hua ; Xu, Jing-Cheng ; Liu, Jia ; Li, Guang-Ming ; Huang, Juwen
  • Chủ đề: Construction Materials -- Analysis ; Sewage -- Chemistry
  • Là 1 phần của: Water science and technology : a journal of the International Association on Water Pollution Research, 2016, Vol.74(1), pp.212-9
  • Mô tả: The treatment and disposal of sewage sludge is a growing problem for sewage treatment plants. One method of disposal is to use sewage sludge as partial replacement for raw material in cement manufacture. Although this process has been well researched, little attention has been given to the thermal properties of cement that has had sewage sludge incorporated in the manufacturing process. This study investigated the fire endurance of eco-cement to which lime-dried sludge (LDS) had been added. LDS was added in proportions of 0%, 3%, 6%, 9%, and 12% (by weight) to the raw material. The eco-cement was exposed to 200, 400, or 600 °C for 3 h. The residual strength and the microstructural properties of eco-cement were then studied. Results showed that the eco-cement samples suffered less damage than conventional cement at 600 °C. The microstructural studies showed that LDS incorporation could reduce Ca(OH)(2) content. It was concluded that LDS has the potential to improve the heat resistance of eco-cement products.
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0273-1223 ; PMID: 27386999 Version:1 ; DOI: 10.2166/wst.2016.196

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