| 1. | Study of the fracture process zone of adhesive interface of new and old concrete
新老混凝土粘结面断裂损伤过程区研究 |
| 2. | A banded micro - crack fracture process zone model of adherence of new and old concrete is built up
建立了新老混凝土粘结面带状微裂缝断裂过程区模型。 |
| 3. | At last , the approach of increasing bonding strength and decreasing shearing stress is presented
最后，给出提高新老混凝土界面粘结强度和降低粘结面剪应力的方法。 |
| 4. | In meso - level , concrete is taken as a type of three - phase composite material comprising mortar matrix , aggregate and bond between matrix and aggregate
混凝土在细观上是一种由骨料、砂浆和粘结面组成的非线性材料。 |
| 5. | 4 . the influence of interfacial micro - crack point of new and old concrete on in adhesive fracture toughness is discussed
从界面断裂力学的基本理论出发，讨论了新老混凝土粘结面裂缝尖端微裂缝区对粘结面断裂性能的影响。 |
| 6. | In the same time , this method has been used to repairing a concrete pavement , and the practice proves that the proposal method is suitable and effective
该粘结面粗糙度评定方法与灌砂法具有内在的等价性。并用工程实例对该方法的适用性和有效性进行了验证。 |
| 7. | ( 3 ) experimental phenomena from the experiment we observed that all wrecks of the bonding samples break at the interface , the broken faces are flat , but the concrete conditions have sth
U ）试验现象从试验中可以观察到所有粘结试件的破坏都是从粘结面断开，破坏面比较平直。但具体情况与所受温度不同而有关。 |
| 8. | But because there are shearing stress and removing stress on the gluing plane between the steel plates and concrete , the phenomenon of premature removing of the steel plates in the strengthen beams is easy to take place
但是，由于钢板和混凝土粘结面上存在粘结剪应力和剥离拉应力，使粘钢加固梁容易发生钢板端部和弯剪区段跨中的早期剥离破坏现象。 |
| 9. | In this paper , the rapid repairing method using cement concrete lamina is presented , two key designing parameters are analyzed : the interfacial bonding strength of new and used concrete and the shearing stress in interface
本文阐述了水泥混凝土路面快速薄层修补的方法，研究了修补中两个重要设计参数：新老混凝土界面抗剪粘结强度和新老混凝土粘结面剪应力，并进行了新老混凝土界面抗剪粘结强度试验和混凝土收缩试验。 |
| 10. | The calculation formula of bond strength of frp and concrete is established according to experiment results and former conclusions , and the comparison is carried out among calculated results , test results , and results from other formula
同时研究了frp片材与混凝土粘结面上应力分布特点，并根据试验结果以及前人得到的相关结论，给出了当粘结长度大于有效粘结长度的极限粘结力计算公式，并对计算结果和试验结果以及其他公式计算结果进行比较。 |
