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Mix proportion design method of machine-made sand pumping concrete
The invention discloses a mix proportion design method of machine-made sand pumping concrete, and belongs to the technical field of building material design and preparation. According to the method, aslurry enrichment coefficient K1 of net slurry and a slurry enrichment coefficient K2 of mortar are provided according to the thought of super-filling and the concept of concrete full gradation; through basic theoretical calculation and verification of a large number of tests, a mix proportion design method of machine-made sand pumping concrete is provided; in the novel mix proportion design method, the mass of each component is a function related to factors such as porosity of machine-made sand without stone powder, porosity of stone, slurry enrichment coefficient of net slurry, slurry enrichment coefficient of mortar, stone powder content, water-cement ratio and the like; and the problem of unreasonable aggregate composition design caused by neglecting the physical characteristics of the aggregate in the existing machine-made sand concrete mix proportion design method is solved from the design aspect, and a new method for the mix proportion design of the machine-made sand concrete is provided.
本发明公开了一种机制砂泵送混凝土配合比设计方法，属于建筑材料设计与制备技术领域，该方法根据超填充的思想和混凝土全级配的概念，提出了净浆的富浆系数K1和砂浆的富浆系数K2。通过基本理论计算及大量试验验证，提出了一种机制砂泵送混凝土的配合比设计方法。新型配合比设计方法中，各组分质量是关于去除石粉机制砂的空隙率、石子空隙率、净浆富浆系数、砂浆富浆系数、石粉含量、水灰比等因素的函数，从设计方面解决了现有机制砂混凝土配合比设计方法因忽略集料自身物理特性而出现的集料组成设计不合理的问题，为机制砂混凝土的配合比设计提供了一种新方法。
Mix proportion design method of machine-made sand pumping concrete
The invention discloses a mix proportion design method of machine-made sand pumping concrete, and belongs to the technical field of building material design and preparation. According to the method, aslurry enrichment coefficient K1 of net slurry and a slurry enrichment coefficient K2 of mortar are provided according to the thought of super-filling and the concept of concrete full gradation; through basic theoretical calculation and verification of a large number of tests, a mix proportion design method of machine-made sand pumping concrete is provided; in the novel mix proportion design method, the mass of each component is a function related to factors such as porosity of machine-made sand without stone powder, porosity of stone, slurry enrichment coefficient of net slurry, slurry enrichment coefficient of mortar, stone powder content, water-cement ratio and the like; and the problem of unreasonable aggregate composition design caused by neglecting the physical characteristics of the aggregate in the existing machine-made sand concrete mix proportion design method is solved from the design aspect, and a new method for the mix proportion design of the machine-made sand concrete is provided.
本发明公开了一种机制砂泵送混凝土配合比设计方法，属于建筑材料设计与制备技术领域，该方法根据超填充的思想和混凝土全级配的概念，提出了净浆的富浆系数K1和砂浆的富浆系数K2。通过基本理论计算及大量试验验证，提出了一种机制砂泵送混凝土的配合比设计方法。新型配合比设计方法中，各组分质量是关于去除石粉机制砂的空隙率、石子空隙率、净浆富浆系数、砂浆富浆系数、石粉含量、水灰比等因素的函数，从设计方面解决了现有机制砂混凝土配合比设计方法因忽略集料自身物理特性而出现的集料组成设计不合理的问题，为机制砂混凝土的配合比设计提供了一种新方法。
Mix proportion design method of machine-made sand pumping concrete
一种机制砂泵送混凝土配合比设计方法
CHEN LEI (author) / ZHANG SHUXIONG (author) / YU LEI (author) / KE GUOJU (author)
2020-05-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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