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dc.contributor.authorPolyium, Udomdejaen_US
dc.contributor.authorอุดมเดชา พลเยี่ยมen_US
dc.contributor.authorSawekwiharee, Sangwoeien_US
dc.contributor.authorสังเวย เสวกวิหารีen_US
dc.date.accessioned2022-05-12T04:23:11Z
dc.date.available2022-05-12T04:23:11Z
dc.date.issued2022-05-12
dc.identifier.urihttp://repository.rmutp.ac.th/handle/123456789/3857
dc.descriptionรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2563en_US
dc.description.abstractThis research aimed to study the optimum conditions for making raw lime from shells, which consisted of 9 conditions: calcined at three levels of 700, 800, and 900 degrees Celsius for 1, 2, and 3 hours. Calcium element content in raw lime using X-ray fluorescence (XRF) measurement, and structural analysis of calcium compounds by X-Ray Diffraction (XRD). The research results were found. 1. Optimal conditions for making lime mortar are temperature 800 degrees Celsius, duration 2 hours. The physical characteristics of raw lime are white and porous. 2. The calcium content from the shells' calcination at 800 degrees Celsius for 1, 2, and 3 hours was 98.22%, 96.70%, 97.89%. 3. Changes in the calcium compounds of raw lime obtained by calcining the shell at 800 degrees Celsius for 1 hour were mainly found in the form of calcium carbonate (CaCO3). At 2, 3 hours, calcium carbonate (CaCO3) is mostly converted to form calcium hydroxide (Ca(OH)2)compound, calcium oxide (CaO) compound is formed.en_US
dc.description.sponsorshipRajamangala University of Technology Phra Nakhonen_US
dc.language.isothen_US
dc.subjectcommunity enterpriseen_US
dc.subjectวิสาหกิจชุมชนen_US
dc.subjectenvironmental protectionen_US
dc.subjectการรักษาสิ่งแวดล้อมen_US
dc.titleDevelopment of chewing mortar from shells for promoting community enterpriseen_US
dc.title.alternativeการพัฒนาปูนดิบจากเปลือกหอยครางเพื่อส่งเสริมวิสาหกิจชุมชนen_US
dc.typeResearch Reporten_US
dc.contributor.emailauthorudomdeja.p@rmutp.ac.then_US
dc.contributor.emailauthorsangwoei.s@rmutp.ac.then_US
dc.contributor.emailauthorarit@rmutp.ac.then_US


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