จำนวน Repository ( 17 )
การใช้ดินขาวผสม กากมะพร้าว เส้นใยจากต้นข้าวโพดและเส้นใยจากเปลือกทุเรียนเพิ่มประสิทธิภาพการป้องกันความร้อนและลดน้ำหนักในผนังคอนกรีตบล็อก
This research aims to study the application of kaolin with coconut meal plywood from corncobs and durian peel in concrete masonry unit wall for increasing effective heat protection and lightweight. The ratio of cement type 1: kaolin is equal to 1: 60 by weight. The kaolin is replaced by fiber include coconut meal fiber corn cob fiber durian peel fiber with 1.67% 3.33% and 5% by weight of kaolin. The kaolin concrete block mixed with fiber sample size is formed to 6.9 x 39 x 19 centimeter with the hydraulic compactor. The samples tested in physical and mechanical properties follow the TIS 58-2533 standard. Resulting their fibers can reduce the density thermal conductivity and compressive strength and increase the changing length and water absorption of kaolin concrete blocks. The kaolin concrete block without fiber has highest compressive strength followed by the kaolin concrete block mixed with corn cob fiber the kaolin concrete block mixed with coconut meal fiber and the kaolin concrete block mixed with durian peel fiber has lowest compressive strength respectively. However their fibers have possibility to be composite materials to reduce weight of kaolin concrete blocks.
การใช้กากมะพร้าว ตันข้าวโพดและเปลือกทุเรียนเป็นวัสดุประกอบชีวภาพทดแทนไม้ในแผ่นใยอัดความหนาแน่นปานกลาง
This research aims to study the application of coconut meal corn cob and durian peel as wood-substituted biocomposites in medium density fiberboard. The fiber: urea formaldehyde glue: isocyanate glue with polymeric diphenymethane diisocyanate type (pMDI) ratio is equal to 1: 0.13: 0.003. The fibers are taken from coconut meal corn cob and durian peel that 7 ratios are used to all of fiber mixing. The fiberboard production use 130°C of temperature with 20 – 50 kg/sq.cm of compressive pressure with 8 minutes per piece of rate. Their fiberboards have 603 – 856 kg/m of density that was tested follow the TIS 876-2547 standard. Resulting the MM33 ratio (coconut meal fibers: corn cob fibers: durian peel fibers is equal to 0.33: 0.33: 0.33) and the CC50 ratio (coconut meal fibers: corn cob fibers: durian peel fibers is equal to 0.50: 0.25: 0.25) can pass the standard in physical properties and mechanical properties. Moreover their fiberboards have good thermal insulation.
Cement blocks mixed with corncob
This research studied about mixing material to make the cement block with corncob to get a lighter weight but still have industry standard strength for non-bearing concrete block (TIS. 58-2530). Normally general cement block use 1:2 ratio by weight of cement and flour rock respectively The corncob were ground through a standard 3/8 inches sieve and were used to replace the flour rock using a ratio of 0% 3% 5% 7% and 9% by weight and setting the ratio of water per cement as 36% 40% 44% and 48% by weight. The compressive strength of 7x19x39 centimeters cement block mixed with corncob was tested at the age of 28 days. The test results to make cement block mixed with corncob showed the suitable ratio 3% corncob using instead of flour rock. The average compressive strength of the blocks was 20.09 kg/cm2 and the percent of water absorption was 12.23 % which past the Thai Industry Standard (TIS 58-2530)
The quality and consumer acceptance of corn milk powder with sugar coating and pasteurized process
The objective of this research was studied the quality and consumer acceptance of corn milk with sugar coating process and pasturization by selected from three corn milk formula. The first formula was the most appropriate. Then pasteurized corn milk with 3 levels of total soluble solid; 9 10 and 11 Brix respectively. The suitable total soluble solid for pasteurized corn milk was 11 Brix. Physicochemical properties. The color values L * a * b * pH equals 74.95 21.03 34.41 and 07.16 respectively. Protein fat fiber moisture ash citric acid lactic acid and carbohydrates. Percent 2.28 1.48 2.22 68.48 0.26 0.14 0.24 and 25.18 respectively. An average sensory score of an appearance viscosity taste and overall liking from 30 panelists had significant (p 0.05) higher than other treatments. The optimum corn milk powder by coating sugar with the ratio of corn milk : sugar was 50 % (by volume/weight) of sugar was dried in tray dryer at 70 C. The color values L * a * b * were 39.89 -2.10 and 10.38 respectively. The sensory acceptance of corn milk from the market was significant (p 0.05) higher score than reconstituted corn milk powder.
The application of coconut meal, corncob and durian peel as wood-substituted biocomposites in medium density fiberboard
This research aims to study the application of coconut meal corncob and durian peel as wood-substituted biocomposites in medium density fiberboard. The fiber: urea formaldehyde glue: isocyanate glue with polymeric diphenymethane diisocyanate type (pMDI) ratio is equal to 1: 0.13: 0.003. The fibers are taken from coconut meal corncob and durian peel that 7 ratios are used to all of fiber mixing. The fiberboard production use 130?C of temperature with 20 – 50 kg/sq.cm of compressive pressure with 8 minutes per piece of rate. Their fiberboards have 603 – 856 kg/m of density that was tested follow the TIS 876-2547 standard. Resulting the MM33 ratio (coconut meal fibers: corncob fibers: durian peel fibers is equal to 0.33: 0.33: 0.33) and the CC50 ratio (coconut meal fibers: corncob fibers: durian peel fibers is equal to 0.50: 0.25: 0.25) can pass the standard in physical properties and mechanical properties. Moreover their fiberboards have good thermal insulation