จำนวน Repository ( 4 )

การใช้ประโยชน์จากกระเบื้องเหลือทิ้งสำหรับผลิตภัณฑ์อิฐบล็อกประสานน้ำหนักเบาเพื่อส่งเสริมวิสาหกิจชุมชน
การใช้ประโยชน์จากกระเบื้องเหลือทิ้งสำหรับผลิตภัณฑ์อิฐบล็อกประสานน้ำหนักเบาเพื่อส่งเสริมวิสาหกิจชุมชน

The purpose of this study were to conduct and to evaluate the effectiveness of Automotive service technician The research procedure starting by collect and study document : research paper international occupational standard (Oklahoma Department of Career and Technology Education) and competency needed in Motorcycle Mechanic suggested by 7 person who working in this field. All data will be referred for behavior objectives list and learning materials design such as information sheet practice operation sheet for experience skill training evaluation sheet with evaluation criteria which clearly listed topics. The sample group in this study was 19 PAJAMANGALA UNIVERSITY OF TECHNOLOGY PHRANAKHON Faculty of Industrial Education in academic year 2 0 1 7 . Pre-test will be given before training steps according to the manual. The students will do the test after each training topic. At the training end Post-test will be given and student final assignment will be evaluated by 5 experts. The Pre-test and Post-test scores will be statistical mean difference test. The research results found that the student final assignment competencies evaluation in percentage mean score was 87.55/94.66/85.13 that higher than 80/80/80 about the expectation. The test percentage mean score after training each topic was 92.11 that higher than 90 about the expectation. The percentage mean score difference test between before and after training was significant at statistical level .01 and the after training score was higher than before training score.

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การพัฒนาและผลิตอิฐบล็อกมวลเบาโดยการผสมเส้นใยธรรมชาติ
การพัฒนาและผลิตอิฐบล็อกมวลเบาโดยการผสมเส้นใยธรรมชาติ

In this study we investigated on the mechanical properties and physical properties of light weight block mixed with banana fibers. For the cost effective purpose and environmental friendly product banana fibers which is rich in fiber was used as a precursor in producing light weight block. In this framework a series of blocks were fabricated using banana fibers for instead different raw material involve cement and sand for 28 days incubation. The result show that the block with mix banana fiber was replaced cement in 2.5 %wt has the density value and compressive strength is 1376 kg/m3 and 62.25 kg/cm3 respectively. While water absorption and the maximum shrinkage limit value are 32.86 % and 0.12 % respectively were obtain from the samples mixing 7.5% of banana fibers. After examination of of Thai Industrial Standard (TIS 1505- 2541) the result illustrated the value are standard. It can be concluded that the light weight block mixed banana fibers in ratio of sand: cement: lime: gypsum: aluminum powder: banana fibers are 50: 27.5 : 9 : 9 : 2 : 2.5 will also be used as an alternative precursor materials for producing the light weight block by natural raw materials for cost effective purpose.

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การใช้เทคโนโลยีสำหรับชุมชนในการพัฒนาผลิตภัณฑ์บล็อกปูพื้นลดอุณหภูมิจากเศษหินพัมมิช
การใช้เทคโนโลยีสำหรับชุมชนในการพัฒนาผลิตภัณฑ์บล็อกปูพื้นลดอุณหภูมิจากเศษหินพัมมิช

This research aims to study the usage pumice rock fragments to develop paving block product for community. The mixture ratios of Portland cement type1: sand: quarry dust: pumice rock fragments: water that there are 6 ratios. The paving block samples are casted in 30 x 30 x 5 centimeter in dimension. The paving block sample testing follows the TIS 378-2531 on concrete flooring tiles. From the experiment bending strength and thermal conductivity of paving blocks with high quantity of pumice rock fragments are lower than paving blocks with low quantity of pumice rock fragments but the water absorption of paving blocks with high quantity of pumice rock fragments are higher. However all of pumice rock fragments paving block samples with lower than 1: 2: 2.4: 0.6: 0.6 of ratio can pass the standard and the surface temperature is lower than other covering materials about 2 degree Celsius.

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การใช้เศษกระดาษเหลือทิ้งเป็นมวลรวมในบล็อกประสานมวลเบาจากหน้าดินขาว
การใช้เศษกระดาษเหลือทิ้งเป็นมวลรวมในบล็อกประสานมวลเบาจากหน้าดินขาว

The objective of this research is to study about physical mechanical and thermal insulation properties of light-weight Kaolin top soil interlocking block mixed with milk carton waste. The ratio of cement: aggregates (Kaolin top soil and milk carton waste): sanitary water is 1: 7: 1 by weight. 10 ratios of aggregates (Kaolin top soil to milk carton waste ratio) are fixed at 7: 0 6.8: 0.2 6.6: 0.4 6.4: 0.6 6.2: 0.8 6: 1 5.8: 1.2 5.6: 1.4 5.4: 1.6 and 5.2: 1.8 by weight. The interlocking block samples are cast for testing the necessary properties followed the TCPS standard 602-2547. From the experiment the best Kaolin top soil to milk carton waste ratio which has the most milk carton waste and can pass the standard is 6.2: 0.8. The suitable quantity of milk carton waste can reduce the density water absorption and thermal conductivity of Kaolin top soil interlocking block.

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