| 1. | Ultrasonic pulses behavior in various - size concrete specimens under compression
不同尺寸混凝土试件受压状态下超声波传播特性研究 |
| 2. | In the second part , the concrete test cubes are made and their basic physics and mechanics properties are determined
第二部分主要是配制混凝土试件并测定其基本的物理力学性能。 |
| 3. | The change of specimens scaling mass were measured , both the saturation degree of specimens and its changing rate within freezing - thawing are calculated
并通过测定混凝土试件的剥落量,得出了冻融循环过程中混凝土的饱和系数及变化速率。 |
| 4. | Based on the experiments on concrete samples , the sensitivity of the fiber optical sensing techniques adopted in crack monitoring of large dams was tested
摘要基于混凝土试件试验，对大坝裂缝光纤监测中采用的光纤传感技术的灵敏性进行了测试。 |
| 5. | This paper carried out two temperature field tests of cfst members , one member placed vertically and another member placed horizontally
本文进行了竖立、横放各一个钢管混凝土试件在日照作用下的截面温度场测试,分析了日照作用下截面温度的变化规律。 |
| 6. | Piezoresistivity of ecac may involve proximity effect , microcrack and the staggered arrangements of conductive pass - ways due to shear strength of aggregates
压敏产生的原因是导电沥青混凝土试件的压缩邻近效应、微裂纹和石料间的剪切力使部分导电通路错位。 |
| 7. | 4 . the temperature damage experiment about mixture of cements , stones and concrete is carried out for the first time . principle that the damage changed with the temperature is analyzed
进行了水泥砂浆，夹石及混凝土试件温度损伤试验研究，分析了混凝土在升温与降温过程中损伤随温差的变化规律。 |
| 8. | On the research of cfrc , infrared thermograph detection under joule heat by adding voltage to the cfrc specimens is found to be a feasible and effective method of inspection , which can avoid the defects
在碳纤维混凝土( cfrc )的研究中发现，对碳纤维混凝土试件进行外加电压的焦耳内热源红外检测可以改善上述存在的局限性。 |
| 9. | General finite element program was used to calculate the temperature field . the calculating result agreeing well with the test result shows that the simulation of solar radiation in this paper is feasible
应用通用程序对日照作用下的钢管混凝土试件的温度场进行了计算,计算结果与实测结果吻合良好,表明本文提出的计算方法是可行的。 |
| 10. | In the concrete test cubes damages under freeze thaw cycles , the theory of the frost damages is explained and freeze - thaw test is done . from test results , the thesis analyzes the main reasons of frost damages
在冻融作用下混凝土试件的损伤部分中，首先阐述了混凝土的冻害机理，然后进行混凝土的抗冻试验，通过试验结果分析影响混凝土抗冻性的主要因素。 |
