จำนวน Repository ( 14 )
การพัฒนาผลิตภัณฑ์แผ่นผนังคอนกรีตน้ำหนักเบาผสมทางมะพร้าวเหลือทิ้งสำหรับวิสาหกิจชุมชนขนาดเล็ก
The objectives of this research are to study the product development of light weight concrete wall board mixed with coconut leaf waste for small community enterprise to find the suitable coconut leaf waste mixed ratio with cement river sand coconut leaf waste water and catalyst accelerator at 1:0.4:0.13:0.33:0.03 ratio. CC13 (1:0.13) at 28 days has density 2266 kg/m3 bending resistance 3.05 MPa heat conduction efficiency 0.236 W/m-K. The coconut leaf waste can absorb water inside and the cement board can attach to the concrete wall easily. Suitability to make the big concrete wall.
การศึกษาส่วนผสมที่เหมาะสมของโครงสร้างกันแรงกระแทกของรถยนต์จากกากผักตบชวาและแกลบสำหรับการชนคนเดินเท้า
Recently the Thai industry has continually grown up and also plays a role to economic growth in the country which affects the many of automotive components to be in the market. While the degeneration and waste of automotive components had increased as well. Therefore a crash box is one of the automotive parts which damage from the accident. Consequently the researchers have created a prototype material to develop into the crash box to reduce the environment problem from automotive parts. The random mixture of water hyacinth and husk was attempted to up to 5 ingredients. By forming a solid cylinder and 200 mm of long was used as prototype of the crash box in this research. Thus the energy absorption using compressing test was attempted to by the universal testing machine. The results showed that using polymers as a binder with 50% of water hyacinth and 50% of husk was the better ability of energy absorption. Regarding this ingredient 1612444 J/m3 of the energy absorption was referred to indicate that is the best ability of energy absorption. It is probably reduce the severity of the impact in the event of pedestrian collision.
การพอกไข่เค็มไชยาด้วยกากชาเพื่อทดแทนดินจอมปลวกบางส่วน
The research aims to study the quality of Chaiya salted eggs coated with tea waste to partially replace soil from termite mound. The residue of tea waste dried to a moisture content of 14.9% was used to prepare salt coating paste. It was found that the mixture of coating paste by substitution of termite mound soil with 10% (w/w) tea waste was appropriate to coat the duck eggs. The salt content increased in both egg yolk and egg white with increasing salt coating time. Coating egg with 10% tea waste for 24 days egg yolk contained salt 0.83% moisture 17.04% and weighed 19.19 grams. The pH value and hardness were 6.43 and 93.67 gram respectively. The egg white contained salt 5.27% moisture 81.61% and pH value was 7.60. The salted boiled eggs coated by 10% tea waste treatment for 21 days were accepted by the panelists in terms of the overall liking with the level of much liking (8.67) not significantly different (p>0.05) from that of the control treatment (0% tea waste). Microorganisms in the salted boiled eggs did not excess Thai OTOP standard. A hundred general consumers accepted this product in terms of the overall liking with the level of much liking (8.00).
การพัฒนาวัสดุอาหารจากวัสดุเหลือทิ้งทางการเกษตรเพื่อการประหยัดพลังงานและลดการถ่ายเทความร้อนเข้าสู่อาคาร
The objective of this research is to study the implementing the agricultural residue to the design of outdoor paving block for lowering the building temperature. The base layer admixture (layer no.1) is selected from cement type1: quarry dust: rice husk: rice straw: water ratios equal to 1: 3: 0: 0: 0.3 1: 1: 0: 1: 0.5 1: 1. 0.25: 0.75: 0.5 1: 1: 0.5: 0.5: 0.5 1: 1: 0.75: 0.25: 0.5 and 1: 1: 1: 0: 0.5 by weight. The surface layer admixture (layer no.2) is white silica cement: yellow stone chip no.4: water equals to 1: 4: 0.3 by weight. The exterior floor-covering blocks were tested following density testing water absorption testing compressive testing and surface temperature testing compare with laterite sandstone paving concrete block marble and granite. Resulting the best ratio of cement type1: quarry dust: rice husk: rice straw: water is 1: 1: 0.75: 0.25: 0.5 that has properties at 28 days following 1939.43 kg/m of density 14.97 % of water absorption 284.69 ksc of compressive strength and lower than other paving blocks around 3 – 13 degrees Celsius of surface temperature