With some engineering examples, this article introduces some testing techniques and methods of PVC plastic corrugated pipe used in prestressed concrete, both in labs and on the spot.
文章结合工程实例介绍在实验室及现场同条件下预应力混凝土用PVC塑料波纹管的检测技术及试验方法。
The uniaxial restraint testing methods are effective to evaluate the cracking sensitivity of concrete at early age in laboratories.
单轴约束试验是试验室评价混凝土早期开裂敏感性的有效方法。
This work is a part of the project Study of the Electrical Property And Testing Methods of Smart Concrete For Traffic Monitoring System, supported by the National Natural Science Foundation.
本课题是国家自然科学基金项目“用于交通监测系统的智能混凝土的电特性及测试方法研究”的一部分。
The other nondestructive testing methods are not suitable to measure the thickness of concrete structures with one surface on which stress wave is generated by impact.
对只存在单一测试面的混凝土结构，用其它无损检测方法测试其厚度难以奏效。
The paper also states minutely the concrete implementation of these two methods in the field testing and calculation.
文中还就这两种方法在现场测试及计算中的具体实施作了较细致的说明。
Two calculation methods for the synthetical evaluation of the compressive strength of structural concrete by multiple testing methods are presented in the paper.
本文简要介绍了当采用多种试验方法综合评定结构混凝土强度时的两种计算方法。
The paper summarizes the definition of self-compacting concrete and its workability, discusses in detail the research and development of the methods for testing SCCs passing ability in the world.
介绍了水下自密实混凝土的配合比设计，生产，检验方法及验收等一系列问题，总结了苏通大桥承台成功封底的施工工艺，对以后同类施工有一定指导和借鉴。
The paper summarizes the definition of self-compacting concrete and its workability, discusses in detail the research and development of the methods for testing SCCs passing ability in the world.
介绍了水下自密实混凝土的配合比设计，生产，检验方法及验收等一系列问题，总结了苏通大桥承台成功封底的施工工艺，对以后同类施工有一定指导和借鉴。
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