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首页> 外文会议>Tenth international conference on superplasticizers and other chemical admixtures 2012 >Effects of In-Transit Addition of Superplasticizer
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Effects of In-Transit Addition of Superplasticizer

机译：在运输过程中加入高效减水剂的影响

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New automated slump control technology is available to manage the quality of concrete in a mixing truck. This technology measures the workability of concrete while in the mixing truck, and then adjusts the workability by adding water or superplasticizer during transit to the construction site. This paper describes this process control technology and the implications for polycarboxylate-based superplasticizer performance. Field data are presented showing the performance of superplasticizers when added in multiple doses during transit rather than all at once in the plant. The effect of varying superplasticizer dose on entrained air content is evaluated. The data confirm that the use of superplasticizer with process control technology can reduce variability in delivered slump. Recommendations are given for selecting admixtures and for programming process control systems to ensure optimal concrete performance.
机译：新的自动坍落度控制技术可用于管理搅拌车中混凝土的质量。该技术可测量在搅拌车中混凝土的可加工性，然后在运输到施工现场的过程中通过添加水或高效减水剂来调节可加工性。本文介绍了该过程控制技术及其对基于聚羧酸盐的高效减水剂性能的影响。现场数据显示了超塑化剂在运输过程中多次添加而不是在工厂中一次添加时的性能。评估了不同减水剂用量对夹带空气含量的影响。数据证实，将超塑化剂与过程控制技术结合使用可减少交付坍落度的变化。给出了有关选择外加剂和对过程控制系统进行编程的建议，以确保最佳的混凝土性能。

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