结果表明，老混凝土表面粗糙度、界面剂对粘结强度有较大影响。
The result demonstrates that the roughness of old concrete and adhesive agent have important influence on bond splitting tensile strength.
总结了新老混凝土粘结面粗糙度处理及评定方法，阐述了沟槽法处理老混凝土表面的优越性。
The treating methods for the interfacial roughness of new to old concrete are summarized, and the advantages of cutting groove method are given.
本文首先通过粗糙度试验对粘结界面质量检验的关键控制点——老混凝土表面粗糙度进行了量化研究。
Firstly, the quantization study on surface roughness of old concrete which is the key control point of bonding quality was carried on by roughness test.
有些老混凝土工程或新建混凝土工程出现施工缺陷，客观条件下不允许按常规方法修补，如公路路面、桥梁、隧道等。
It is not allowed to repair by normal ways when construction defects happened to some old concrete engineering or new-built ones, eg pavement, bridge, tunnel, etc.
在自密实混凝土与老混凝土约束收缩试验的基础上，本文采用大型有限元软件ABAQUS进行了新老混凝土粘结的约束收缩模拟，并与试验结果进行比较，以验证有限元模型的可行性。
Based on the test results of adherence of self-compacting concrete to old concrete, the restrained shrinkage of adhesion between new and old concrete is simulated by finite element program ABAQUS.
本文论述沈阳老站圆形候车大厅保护性改造工程中，采用扣件钢管框架支撑半球形穹盖进行更换钢筋混凝土柱及基础的施工。
In its construction, engineers adopted fastener steel pipe frames to support the semi-spherical dome in order to replace reinforcement concrete and foundation of the station.
在石拱桥拱圈的下部进行衬砌加固，使老石拱桥拱圈与新钢筋混凝土套拱形成整体，共同受力，是一种维修加固石拱桥的简单实用的方法。
The effect method of reinforce and maintenance the stone arch bridge is to build liner around the arch bridge down area. That combines the old arch round and the new reinforced concrete together.
泉港老闸的钢筋混凝土结构拆除工程采用了控制爆破技术。
The removal project of the steel reinforced concrete structures of the old sluice gate in Quangang adopted the controlled blasting technique.
通过深孔和浅孔爆破相结合的方法，拆除了南昌老八一大桥30个水中大型钢筋混凝土桥墩。
By a blasting method of combining long holes with short holes, 30 big reinforced concrete bridge piers of the old '8.1bridge in Nanchang were demolished.
通过深孔和浅孔爆破相结合的方法，拆除了南昌老八一大桥30个水中大型钢筋混凝土桥墩。
By a blasting method of combining long holes with short holes, 30 big reinforced concrete bridge piers of the old '8.1bridge in Nanchang were demolished.
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