Currently, one of the most important trends in concrete technology is the use of inert fine particles (fillers) to decrease cement content, increase packing in the paste and increase flowability, with gains in technological, environmental and cost aspects. The advance in dispersion technology (using superplasticisers) is one of the technical issues that allows pastes to be mixed without the expected increase of water content – which decreases compressive strength – caused by the filler's high surface area. However, the use of no more than the optimal dispersant (superplasticiser) content (lowest content that provides the lowest viscosity) is crucial owing to cost constraints. This paper evaluates the possibility of predicting optimal dispersant content in cement–limestone filler systems from the optimal dispersant content previously measured in the pure raw materials. Owing to the need for only a few sets of tests, this can optimise the design timing and accuracy of efficient pastes for lower binder concretes.

中文翻译：

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通过流变试验预测水泥-石灰石浆体的最佳分散剂（高效减水剂）含量

目前，混凝土技术最重要的趋势之一是使用惰性细颗粒（填料）来降低水泥含量、增加浆体中的堆积并增加流动性，从而在技术、环境和成本方面取得进展。分散技术（使用超塑化剂）的进步是技术问题之一，它允许糊状物在没有预期的水含量增加的情况下混合——这会降低抗压强度——由填料的高表面积引起。然而，由于成本限制，使用不超过最佳分散剂（高效减水剂）含量（提供最低粘度的最低含量）是至关重要的。本文评估了根据先前在纯原材料中测量的最佳分散剂含量预测水泥-石灰石填料体系中最佳分散剂含量的可能性。由于只需要几组测试，这可以优化低粘结剂混凝土高效浆料的设计时间和准确性。