发布网友 发布时间:2022-04-24 14:29
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热心网友 时间:2023-10-16 10:29
Purpose: This experiment aims to discuss the resistance to compression, the anti-bending strength, and the size of different kinds of plaster models(calcium sulfuricum或者 regular plaster以后用A代替了 and die stonesB) after agitating them in the water with different temperatures, and to find the most appropriate temperature for the plaster agitation model.
Method: Prepare the A and B solution with a certain ratio and make a cylinder with a resistance to compression of 20mm, and a anti-bending strength of 40mm. Each kind should be divided into 28 groups. Put them in the temperature of 0..... respectively and agitate the plaster. Leave them there for 30 mins .... 24 hours. Then, measure the changes of resistance to compression and anti-bending strength and size changes.
Result: 1) There is a obvious difference in the resistance to compression of the regular gesso (p<0.05), and so do the die stones. 2) Both regular plaster and die stones have a big difference on the anti-bending strength (p<0.05) 3) the sizes of both plasters don't change much after agitation. (p>0.05)
conclusion: The resistance to compression and anti-bending strength of both regular plaster and die stone changed obviously after agitating in water of different temperatures. And it peaks at the group with a condition of .......
2) the size is pretty stable and it doesn't change that much after agitating in different temperatures of water. and the resistance to compression and anti-bending strength optimized at a condition of ....
key words: temperatures of water, plaster models, resistance to the compression, anti-bending strength, change of size
好累...其中我不太确定关于你专业里抗压强度一集抗弯强度的翻译
你最好去问一下老师
热心网友 时间:2023-10-16 10:29
Objective: This study focused on two types of gypsum model (an ordinary plaster of paris, super anhydrite) to go through the various water temperature after mixing plaster model of compressive strength, flexural strength and size changes. Mixing plaster model to find the optimum temperature.
Methods: ordinary gypsum, die stone powder in strict accordance with their respective proportion of gouache are made of 12mm diameter of the cylinder model, one of the high-compression model of 20mm, the bending model of high-40mm. Each type of gypsum sub-28 group, respectively 0 ℃, 5 ℃, 10 ℃, 15 ℃, 20 ℃, 25 ℃, 30 ℃ of water temperature mixing plaster and placed separately for 30 minutes, 60 minutes, 6 hours, 24 hours. Then separately measured compressive, flexural strength and size changes.
Results: (1) ordinary gypsum between the compressive strength of each group has significant difference (p <0.05), ultra-anhydrite to compare each group has significant difference (p <0.05) (2) ordinary gypsum each group comparison, bending strength There were significant differences (p <0.05). Fengchao anhydrite among the three groups of comparison, the bending strength were significantly different (p <0.05) (3) two types of gypsum with different water temperature after mixing the size of changes in statistical analysis, paired test no significant difference (p> 0.05).
Conclusion: (1) ordinary gypsum and anhydrite super mixing different water temperature on the plaster model of the compressive, flexural strength has changed markedly. One of 0.5h, 1h, 6h, 24h: 15 ℃ group best compression bending strength.
(2) plaster model of the dimensional stability, and by the different water temperature mixing plaster Change its size have no significant effect. 0.5h, 1h, 6h, 24h: 15 ℃ group best compression bending strength.
Keywords: compressive strength plaster model temperature flexural strength Size Change
累死我了,给分
热心网友 时间:2023-10-16 10:30
没法翻
全是专业词汇