如混凝土强度的检测范围，不同龄期的影响及部分掺加剂对测试的影响等。
Such as testing the strength of concrete, not of the same age and some of the effects of phase mixing on the impact of the test.
配比中掺加剂的用量，应先试配，检验配合液的各项性能指标是否符合要求。
The dosage of admixture in should be trial tested to see if all indexes of the mixture can meet the requirement.
怎样才能避免或延缓公路桥梁水泥混凝土中钢筋的腐蚀破坏，在水泥混凝土拌和物中掺加阻锈剂是一种施工简单、经济而又有效的方法。
How to avoid or delay the corrosion of reinforced concrete Bridges? Adding anti-corrosion admixture to cement concrete mixture is the simple and economical method.
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