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A platform for research: civil engineering, architecture and urbanism
Machine-made sand self-compacting concrete mix proportion quantitative design method
The invention discloses a machine-made sand self-compacting concrete mix proportion quantitative design method, and relates to the technical field of concrete mix proportion. According to the method, the influence rule and the optimal control range of key parameters such as the content of the machine-made sandstone powder, the fineness modulus and the like on the self-compacting concrete can be obtained through test analysis; through the measures of sand making raw material selection, sand making machine parameter adjustment and the like, the produced machine-made sand has the characteristics of being good in grain shape, low in needle sheet content, low in mud content and the like, the stone powder content and the fineness modulus are in the optimal control range, and the MB value is smaller than 1.4; the powder content, the fineness modulus and the MB value of the machine-made sand are effectively controlled by optimizing concrete raw materials and combining the machine-made sand production process.
本发明公开了一种机制砂自密实混凝土配合比定量设计方法，涉及混凝土配合比技术领域。本方法能够通过试验分析，获得了机制砂石粉含量、细度模数等关键参数对自密实混凝土的影响规律和最佳控制范围；通过制砂原材料选择、制砂机参数调整等措施，生产出的机制砂具有粒形良好，针片状含量少，含泥量少等特点，石粉含量与细度模数在最佳控制范围，MB值＜1.4；通过混凝土原材料优选并结合机制砂生产过程有效控制机制砂石粉含量、细度模数及MB值。
Machine-made sand self-compacting concrete mix proportion quantitative design method
The invention discloses a machine-made sand self-compacting concrete mix proportion quantitative design method, and relates to the technical field of concrete mix proportion. According to the method, the influence rule and the optimal control range of key parameters such as the content of the machine-made sandstone powder, the fineness modulus and the like on the self-compacting concrete can be obtained through test analysis; through the measures of sand making raw material selection, sand making machine parameter adjustment and the like, the produced machine-made sand has the characteristics of being good in grain shape, low in needle sheet content, low in mud content and the like, the stone powder content and the fineness modulus are in the optimal control range, and the MB value is smaller than 1.4; the powder content, the fineness modulus and the MB value of the machine-made sand are effectively controlled by optimizing concrete raw materials and combining the machine-made sand production process.
本发明公开了一种机制砂自密实混凝土配合比定量设计方法，涉及混凝土配合比技术领域。本方法能够通过试验分析，获得了机制砂石粉含量、细度模数等关键参数对自密实混凝土的影响规律和最佳控制范围；通过制砂原材料选择、制砂机参数调整等措施，生产出的机制砂具有粒形良好，针片状含量少，含泥量少等特点，石粉含量与细度模数在最佳控制范围，MB值＜1.4；通过混凝土原材料优选并结合机制砂生产过程有效控制机制砂石粉含量、细度模数及MB值。
Machine-made sand self-compacting concrete mix proportion quantitative design method
机制砂自密实混凝土配合比定量设计方法
CHEN XI (author) / LEI HONGYU (author) / LIU YING (author) / LI YANLEI (author) / CHAO XILIN (author)
2023-03-21
Patent
Electronic Resource
Chinese
| European Patent Office | 2020
Machine-made sand self-compacting concrete and preparation method thereof
| European Patent Office | 2023
Machine-made sand self-compacting concrete and preparation method thereof
| European Patent Office | 2020