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High-quality machine-made sand concrete mix proportion design method
The invention discloses a method for designing the mix proportion of high-quality machine-made sand concrete. The method comprises the following steps: establishing a continuous gradation design formula, designing grain gradation composition, calculating the water-binder ratio, calculating the water consumption and admixture consumption and calculating the cementing material consumption. The stone powder content in the machine-made sand is controlled by designing the grain composition of the machine-made sand through continuous grading, and the grain composition design method of the continuous machine-made sand is given by starting with the nominal maximum grain size control of the machine-made sand and optimizing the grain surrounding number in the continuous grading according to the cement use amount range of C30-C80 machine-made sand concrete.
本发明公开了一种高品质机制砂混凝土配合比设计方法，包括连续级配设计公式的建立、颗粒级配组成设计、水胶比计算、用水量和外加剂用量计算以及胶凝材料用量计算。本发明通过采用连续级配设计机制砂的颗粒级配来控制机制砂中的石粉含量，从机制砂的公称最大粒径控制入手，根据C30～C80机制砂混凝土的水泥用量范围，通过优化连续级配中的颗粒包围数，给出连续机制砂的颗粒级配设计方法。
High-quality machine-made sand concrete mix proportion design method
The invention discloses a method for designing the mix proportion of high-quality machine-made sand concrete. The method comprises the following steps: establishing a continuous gradation design formula, designing grain gradation composition, calculating the water-binder ratio, calculating the water consumption and admixture consumption and calculating the cementing material consumption. The stone powder content in the machine-made sand is controlled by designing the grain composition of the machine-made sand through continuous grading, and the grain composition design method of the continuous machine-made sand is given by starting with the nominal maximum grain size control of the machine-made sand and optimizing the grain surrounding number in the continuous grading according to the cement use amount range of C30-C80 machine-made sand concrete.
本发明公开了一种高品质机制砂混凝土配合比设计方法，包括连续级配设计公式的建立、颗粒级配组成设计、水胶比计算、用水量和外加剂用量计算以及胶凝材料用量计算。本发明通过采用连续级配设计机制砂的颗粒级配来控制机制砂中的石粉含量，从机制砂的公称最大粒径控制入手，根据C30～C80机制砂混凝土的水泥用量范围，通过优化连续级配中的颗粒包围数，给出连续机制砂的颗粒级配设计方法。
High-quality machine-made sand concrete mix proportion design method
一种高品质机制砂混凝土配合比设计方法
YANG XIAOLONG (author) / LIU XIAOYU (author) / LIANG JUNLIN (author) / RONG HONGLIU (author) / LI SIWEI (author) / MENG YONGJUN (author)
2024-01-23
Patent
Electronic Resource
Chinese
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