จำนวน Repository ( 23 )
ลักษณะวัสดุผสมซีเมนต์เพสต์กับเถ้าเส้นใยผลตาลโตนดใส่ท่อนาโนคาร์บอนผนังชั้นเดียวชนิดสั้นผ่านการปรับปรุงผิวภายนอกด้วยกระบวนการชุบผิวโดยไม่ใช้ไฟฟ้า
This research was resulted of the characterization of cement paste composites (CPC) blended with palmyra fiber ash and surface-treated on short SWNT prepared by an electroless plating process. The cement paste composites included cement 270 meshes of palmyra fiber ash and short SWNT. The design of experiment was divided into 3 conditions namely uncuring 28 and 56 days in distilled water. The properties of CPC were carried out in chemical composition physical mechanical mineral phase microstructure and statistical analysis. It was found that in the chemical compositions an amount of silicon dioxide aluminium oxide and ferric oxide were 51.53% which was rated in class C. The bulk densities of CPC series between PFA10 (C) and PFA5AgSWNT0.01 (G) cured 56-day distilled water were an increased 38%. Then the highest specific electrical resistivity of CPC series PFA5OSWNT0.03 (F) cured 56-day distilled water was 1.14±0.31 mega-ohm.mm. The highest compressive strength of CPC series PFA5AgSWNT0.01 (G) cured at 28-day distilled water was 25.45±2.00 MPa compared with the OPC (A) was an increased 5%. Which the bulk densities of CPC series between PFA10 (C) and PFA5AgSWNT0.01 (G) were statistical analyzed the mostly cured at significant difference α = 0.05. In addition CPC series PFA5AgSWNT0.01 (G) mainly contained calcite portlandite quartz dolomite and ettringite were caused increasing compressive strength. And the SEM microphotograph were also displayed the calcium silicate hydrate portlandite and ettringite. Consequently the PFA was used to ability pozzolanic material using for lightweight concrete of CPC.
ปัจจัยที่มีผลต่อการพัฒนาแผ่นกรุผนังเพื่อลดภาระการใช้พลังงานของเครื่องปรับอากาศภายในอาคารเพื่อต่อยอดเชิงพาณิชย์
This research approach to study the development of interior wall for reduce energy consumption by air conditioning in the building. In order to be a prototype in the development of an industrial system for the export of green architecture in order to generate income for the community or entrepreneurs to bring money into the country to upgrade the industrial economy to be sustainable It is an architectural material that is compatible with the weather in Thailand. It can be used as a guideline for people interested in applying it to their own home building or disseminating through various media to reduce energy costs for a comfortable living. The objective is to study the factors that affect the development of wall paneling in order to reduce the energy burden of the air conditioner in the building in order to further the commercial production. The researcher collected data for the past 6 months not including other thermal energy. Used to calculate the energy consumption index for 2 building groups it was found that the electricity consumption of green buildings were 531100 kilowatt hours. And an average of 5.31 kilowatt hours per square meter While the non-green building has an average of 653360 kilowatt hours. And an average of 6.53 kilowatt hours per square meter As for the results of the data analysis the damage level is mostly at level 1 which is the wall surface and no obvious damage. Especially the 4th and 5th height is 1.55 meters and 1.85 meters from the floor level in the building. Damage level 3 is found at the height level 3 at a height of 1.00 meters from the floor level in the building. Assessment of damage caused to the interior wall of the building that occurred in 3 levels. The results of the data analysis showed that most damage levels were at level 1 namely the wall surface without obvious damage. Especially the 4th and 5th height is 1.55 meters and 1.85 meters from the floor level in the building. Damage level 3 is found at the height level 3 at a height of 1.00 meters and from the results of collecting moisture content in the exterior wall materials And analyzed to find the average for each of the 5 levels of height which are 0.55 meters 0.75 meters 0.95 meters 1.55 meters and 1.85 meters found that the buildings have different moisture content in each wall level (p <0.05). In conclusion this green building index equation can be applied to other buildings to reduce energy consumption and meet the standards of the green building. From the equation the electricity consumption can be predicted using the electricity usage index and systematically designed energy management in buildings. The area with the most damage will find the humidity in the range of 47% -98% the highest damage level 3 at an elevation of 0.80 meters from the floor level in the building
การออกแบบลายพิมพ์ผ้าจากแรงบันดาลใจศิลปะไทยจิตรกรรมฝาผนัง สมัยอยุธยา : กรณีศึกษาวัดใหญ่สุวรรณาราม (จังหวัดเพชรบุรี)
The purpose of the study “Designing of Printed Textile Inspired by Thai Art Mural In Ayutthaya Period : A Case Study of Wat Yai Suwannaram Phetchaburi” with objective to study and design Printing Fabric from the Inspired by Thai Art Mural In Ayutthaya Period : A Case Study of Wat Yai Suwannaram Phetchaburi. And study the satisfaction and design the printing design which to produce as product to cover shoulders by using the questionnaires as a tool in collecting data from the group samples which the woman working age of state departments and private sectors in the office of United Center Building who is popular use the product to cover shoulders Bang Rak District Bangkok Metropolis for 50 persons by grouping (Purposive sampling). The analyze data by using statistic at 100 % for average value and deviate standard the result of study found that the most appraisers are between age 25-30 years old education level is bachelor degree and income between 15000–20000 Baht. The most appraisers consider first are first select to buy the fabric with design and the prices most appraisers favor to buy the price between 300–500 Baht. Designing of Printed Textile Inspired by Thai Art Mural In Ayutthaya Period : A Case Study of Wat Yai Suwannaram Phetchaburi. All 3 groups of color consist of Group A tone white is natural Group B tone color is cold color Group C is hot tone for 3 patterns total pictures are satisfied at level X = 4.25 S.D.=0.59 when compare to various sides and found that is satisfaction level in all sides that the design the printing pattern on color technic of printing material and other useful usages by design pattern fabric color printing technic material and other usages by design the printing pattern. Picture No. 1 Total pictures they are satisfied at level X = 4.28 S.D.=0.60. Tone group is very satisfaction that is B Group tone is calm. Total picture are satisfaction at high level X = 4.30 S.D.=0.54 and usage benefit is the most interest.
ผนังปลูกพืชจากใบสักเพื่อเป็นฉนวนกันความร้อนให้กับอาคาร
At present global warming is a major problem that needs to be addressed and mitigated. The problem arises because human housing construction is increasing. The surface of the soil which is a source of vegetation was scattered by the building. The impact of the construction resulted in higher overall temperatures. This is caused by the heat accumulated in the building material. Particularly for building materials that have been exposed to direct sunlight this has had an impact on the comfort of the occupants in the building. This research is an experiment to make a wall of plants from a tattoo. The natural plant material was planted to study the solar radiation efficiency of the planting wall of the tattooed leaves installed on the test box. Based on the analysis of the data it can be concluded that the test wall covered with vegetation leaves the temperature lower than that of the other walls. Different test walls make different internal and external temperatures. Sun radiation affects the test wall temperature varying according to the amount of sun radiation received. Observed by changing internal and external wall temperatures at different intervals. Use plants to protect the walls to prevent heat by keeping the walls under the shade of the plant. It also radiates heat through the leaves. Leaves are a thermodynamic variable that is cooled down by the evaporation of leaves. Plants on the wall will absorb the water inside to evaporate. The temperature of the tree is cool. When combined with the airflow through the wall the shade will blow the hot air under the leaves and the water vapor from the dehydration process of the plant. The heat from the tree wall to the environment is better. As a result the internal temperature decreased.
ผลิตภาพแรงงานของงานฉาบปูนผนังภายในอาคาร
The purpose of this research was to study productivity rate in concrete plastering of interior brick wall by studying 2 construction projects in Bangkok. The researcher divided the methods of labor productivity into two categories: (1) direct labor production technique and (2) field rating technique. The direct labor productivity technique of project A is about 1.38 m2/person/hr. and project B is about 1.19 m2/person/hr. by field rating technique project A had 77.75 % of workers in work status project B had 73.75% of workers in work status. The error rate was 4.08 % and 4.31 % respectively at the 95% confidence level. Project A has higher productivity rate than project B because project manager A chooses ready-mixed plaster for plastering. Project B selects cement mix (silica cement) mixed with fine sand cement mixer and water which take longer to prepare than Project A resulted cost of materials increase for 28.21 %.Meanwhile the working time for wall plastering could take longer for 13.77 %. It can be concluded that the selection of material for work is another factor affecting labor productivity