กรุณาใช้ตัวระบุนี้เพื่ออ้างอิงหรือเชื่อมต่อรายการนี้: https://buuir.buu.ac.th/xmlui/handle/1234567890/2448
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ฟิลด์ DC ค่าภาษา
dc.contributor.authorPrinya Chindaprasirt
dc.contributor.authorUbolluk Rattanasak
dc.contributor.otherFaculty of Science
dc.date.accessioned2019-03-25T09:14:54Z
dc.date.available2019-03-25T09:14:54Z
dc.date.issued2009
dc.identifier.urihttp://dspace.lib.buu.ac.th/xmlui/handle/1234567890/2448
dc.description.abstractA study was conducted on leaching of fly ash mixed with NaOH solution and on mixing procedure for preparing geopolymer. Leaching of SiO2 and Al2O3 was investigated by mixing fly ash with NaOH solution for different time intervals and leachates were analyzed in terms of silica and alumina contents. To make geopolymer paste, separate mixing and normal mixing were used. For separate mixing, NaOH solution was mixed with fly ash for the first 10 min; subsequently sodium silicate solution was added into the mixture. For normal mixing, fly ash, sodium hydroxide and sodium silicate solution were incorporated and mixed at the same time. Geopolymers were cured at 65 °C for 48 h. Microstructure of paste and compressive strength of mortar were investigated. Results revealed that solubility of fly ash depended on concentration of NaOH and duration of mixing with NaOH. For mixing procedure, separate mixing gave slightly better strength mortar than normal mixing. High strength geopolymer mortar up to 70.0 MPa was obtained when the mixture was formulated with 10 M NaOH and sodium silicate to NaOH ratio of 1.0, and the separate mixing sequence was used.en
dc.language.isoeng
dc.subjectCementationen
dc.subjectIndustrial mineralsen
dc.subjectLeachingen
dc.subjectWaste processingen
dc.titleInfluence of NaOH solution on the synthesis of fly ash geopolymeren
dc.typeบทความวารสารth_TH
dc.issue12
dc.volume22
dc.year2009
dc.journalMinerals Engineering
dc.page1073-1078.
ปรากฏในกลุ่มข้อมูล:บทความวิชาการ (Journal Articles)

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