不同替代率下机制砂混凝土性能研究

伴随着城市建筑的日益增多，天然砂的供应量日趋紧张，机制砂取代天然砂是必然趋势。但机制砂由于自身的特性，在实际施工中需要注意很多问题。特别是机制砂混凝土的工作性能和强度性能，对机制砂的推广应用具有重要的决定作用。

Study on Properties of Machine-made Sand Concrete with Different Replacement Rate

Along with the increasing of the city construction, supply of natural sand is becoming tenser, so it is the inevitable trend to replace natural sand with manufactured sand. But bec-ause of its characteristics, the manufactured sand needs to pay at ention to in the actual construction. The working performa-nce and strength properties of the concrete have an important 〈br〉 role in the popularization and application of machine-made sand.