A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Machine-made sand concrete with excellent performance and high stone powder content and preparation method thereof
The invention relates to machine-made sand concrete with excellent performance and high stone powder content and a preparation method thereof, the method belongs to the technical field of concrete preparation, and the machine-made sand concrete comprises the following components in parts by mass: 3.5-4.5 parts of cement, 8.0-9.5 parts of machine-made sand, 2.0-2.5 parts of a composite admixture, 12.0-13.5 parts of coarse aggregate, 0.05-0.07 part of a water reducing agent and 2.0-2.5 parts of tap water. The machine-made sand comes from a large amount of waste rocks generated in the highway construction process, the gradation is poor, the stone powder content is high, the environment is damaged due to the fact that a large amount of natural sand is adopted, and how to effectively utilize the artificial gravel to replace the natural sand to prepare the concrete with good performance is an urgent need to be solved. The machine-made sand concrete has the advantages of high workability, good strength, good performance and the like, and by preparing the novel blending proportion machine-made sand concrete, while the performance of the concrete is greatly improved, resources are reasonably utilized, the production and preparation efficiency is improved, and the production cost is greatly reduced.
本发明涉及一种优性能的高石粉含量机制砂混凝土及其制备方法，此方法属于混凝土制备技术领域，其中机制砂混凝土的各个组分质量分数如下：水泥3.5‑4.5份，机制砂8.0‑9.5份，复合掺合料2.0‑2.5份，粗骨料12.0‑13.5份，减水剂0.05‑0.07份，自来水2.0‑2.5份。本发明中的机制砂来源于高速公路修建过程中产生的大量废弃岩石，级配不佳，石粉含量较高，加之天然砂的大量采用致使环境破坏，如何有效利用人工砂石代替天然砂来制备性能良好的混凝土，是一件亟待解决的事情；本发明中的机制砂混凝土具有高和易性、强度良好、性能良好等其它优势，通过制备新型掺和比例机制砂混凝土，大幅度提高混凝土性能的同时，合理的利用了资源，提高了生产制备效率，极大地降低了生产成本。
Machine-made sand concrete with excellent performance and high stone powder content and preparation method thereof
The invention relates to machine-made sand concrete with excellent performance and high stone powder content and a preparation method thereof, the method belongs to the technical field of concrete preparation, and the machine-made sand concrete comprises the following components in parts by mass: 3.5-4.5 parts of cement, 8.0-9.5 parts of machine-made sand, 2.0-2.5 parts of a composite admixture, 12.0-13.5 parts of coarse aggregate, 0.05-0.07 part of a water reducing agent and 2.0-2.5 parts of tap water. The machine-made sand comes from a large amount of waste rocks generated in the highway construction process, the gradation is poor, the stone powder content is high, the environment is damaged due to the fact that a large amount of natural sand is adopted, and how to effectively utilize the artificial gravel to replace the natural sand to prepare the concrete with good performance is an urgent need to be solved. The machine-made sand concrete has the advantages of high workability, good strength, good performance and the like, and by preparing the novel blending proportion machine-made sand concrete, while the performance of the concrete is greatly improved, resources are reasonably utilized, the production and preparation efficiency is improved, and the production cost is greatly reduced.
本发明涉及一种优性能的高石粉含量机制砂混凝土及其制备方法，此方法属于混凝土制备技术领域，其中机制砂混凝土的各个组分质量分数如下：水泥3.5‑4.5份，机制砂8.0‑9.5份，复合掺合料2.0‑2.5份，粗骨料12.0‑13.5份，减水剂0.05‑0.07份，自来水2.0‑2.5份。本发明中的机制砂来源于高速公路修建过程中产生的大量废弃岩石，级配不佳，石粉含量较高，加之天然砂的大量采用致使环境破坏，如何有效利用人工砂石代替天然砂来制备性能良好的混凝土，是一件亟待解决的事情；本发明中的机制砂混凝土具有高和易性、强度良好、性能良好等其它优势，通过制备新型掺和比例机制砂混凝土，大幅度提高混凝土性能的同时，合理的利用了资源，提高了生产制备效率，极大地降低了生产成本。
Machine-made sand concrete with excellent performance and high stone powder content and preparation method thereof
一种优性能的高石粉含量机制砂混凝土及其制备方法
WANG FUHUA (author) / SHI FUMING (author) / ZHAO YUANBIN (author) / JING YUEFEI (author) / YAN XUEHAN (author) / LI HEPING (author) / LI ZHEN (author) / KONG FANHUAN (author) / ZHAO WENHAO (author) / ZHAO JINBO (author)
2023-12-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
| European Patent Office | 2023
| European Patent Office | 2020
Stone powder and machine-made sand compound mortar and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2023