CN-121974586-A - Preparation method of gangue slag burning machine aggregate and preparation method of gangue slag burning machine aggregate applied to cement concrete

Abstract

A preparation method of gangue slag burning machine aggregate and a preparation method of gangue slag burning machine aggregate applied to cement concrete belong to the technical field of cement concrete materials. The preparation method of the aggregate by the gangue slag burning machine comprises the following steps of S1, processing gangue slag burning graded broken stone and machine-made sand in a large scale through combined equipment, and S2, preparing the gangue slag burning graded broken stone and the machine-made sand into cement concrete. The method for preparing aggregate by gangue slag burning machine is applied to cement concrete. The invention solves the problems of great self-weight of common cement concrete, engineering material, environmental protection, land resource and the like, has short laying period, is simple, convenient and quick, solves the problem of high cement concrete cost, has lower cost, has great benefit on the overall frost resistance of the freezing area, can effectively prolong the service life of the cement concrete and saves maintenance cost.

Inventors

• QI LIN
• LIU JINCAO
• XING MINGMING
• LIANG SHUANG
• MIAO ZIFENG
• DU SHIPENG
• ZHAO ZHENGUO

Assignees

• 苗子丰

Dates

Publication Date

20260505

Application Date

20251218

Claims (5)

1. 1. S1, processing gangue slag burning graded broken stone and machine-made sand on a large scale through combined equipment; the combined equipment is a combination of a cone crusher and a reaction crusher or a combination of a hammer crusher and an impact crusher; s2, preparing cement concrete by grading broken stone and machine-made sand of industrial gangue slag.
2. 2. The method for preparing the aggregate by the gangue slag burning machine according to claim 1, wherein in the step S2, the gangue slag burning graded broken stone is soaked before preparing the cement concrete.
3. 3. The method for preparing the aggregate by the gangue slag burning machine according to claim 2, wherein a shaper is subsequently used in the hammer crusher-impact crusher combination.
4. 4. A preparation method of the aggregate by the gangue slag burning mechanism is characterized in that the cement concrete is prepared according to the proportion that the cement dosage is 365kg/m 3 , the water-cement ratio is 0.46 and the water reducer is matched with 0.6%, and the fine-coarse aggregate ratio is 0.82:1.0.
5. 5. A preparation method of the gangue slag burning machine-made aggregate applied to cement concrete is characterized in that the cement concrete is applied to cement concrete precast blocks, cement concrete products and highway cement concrete base layers.

Description

Preparation method of gangue slag burning machine aggregate and preparation method of gangue slag burning machine aggregate applied to cement concrete Technical Field The invention belongs to the technical field of cement concrete materials, and particularly relates to a preparation method of aggregate by a gangue slag burning machine and a preparation method of aggregate applied to cement concrete. Background The construction of highway engineering currently requires a large amount of sand and gravel material. Along with the implementation of environmental protection policy, the requirements on the exploitation and processing process of the sand and stone materials are more and more strict, and the sand and stone materials become a shortage resource gradually. The gangue is used as solid industrial waste residue, has large discharge amount, occupies a large area, pollutes the environment seriously, and seriously affects the life, production and physical and mental health of people. Therefore, how to reasonably utilize the coal gangue slag is a technical problem to be solved by the technicians in the field. Disclosure of Invention The invention aims to solve the problems, and further provides a preparation method of the gangue slag burning machine aggregate and a preparation method of the gangue slag burning machine aggregate applied to cement concrete. The technical scheme adopted by the invention is as follows: s1, large-scale processing of gangue slag-burning graded broken stone and machine-made sand through combined equipment; The combined equipment is a combination of a cone crusher and a reaction crusher or a combination of a hammer crusher and an impact crusher. S2, preparing cement concrete by grading broken stone and machine-made sand of industrial gangue slag. Further, in the step S2, the gangue slag-fired graded broken stone is soaked before the cement concrete is prepared. Further, in the hammer crusher-impact crusher combination, a shaper is subsequently used. A method for preparing the aggregate by gangue slag burning mechanism is applied to cement concrete, the proportion of the cement concrete is 365kg/m 3, the water-cement ratio is 0.46 and 0.6% water reducer is matched, and the ratio of fine aggregate to coarse aggregate is 0.82:1.0. Further, the cement concrete is applied to cement concrete precast blocks, cement concrete products and highway cement concrete base layers. Compared with the prior art, the invention has the following beneficial effects: 1. The gangue slag-fired aggregate cement concrete overcomes the defects of the traditional broken stone concrete, solves the problem of difficult material taking, has the general technical characteristics and advantages that ① critically solves the problem of heavy weight of common cement concrete, ② solves the problems of engineering materials, environmental protection, land resources and the like, ③ is short in laying period, simple, convenient and quick, ④ solves the problem of high cement concrete cost, is lower in cost, ⑤ has great benefit on the overall freezing resistance of a freezing zone, can effectively prolong the service life of the cement concrete, and saves maintenance cost. 2. Gangue combustion slag = spontaneous combustion gangue = self-burned gangue = commonly known as "flame-burned gangue" Coal gangue, which is usually a collective term for non-spontaneous-combustion coal gangue, coal gangue being spontaneous-combustion, and coal gangue that has been self-burned (coal gangue slag). The differences between the non-spontaneous combustion coal gangue and the spontaneous combustion coal gangue (coal gangue combustion slag) are mainly that- ① rock properties and engineering properties are completely different, the quantity of ② coal gangue combustion slag is far smaller than that of the non-combustion coal gangue, the choice is small, and the ③ non-spontaneous combustion coal gangue can not achieve good service performance, uniformity and stability even if applied to cement concrete. The research shows that the gangue slag-burning graded broken stone and machine-made sand can achieve good use performance, uniformity and stability. The combustible impurities in the gangue slag are not removed, and the strength of sandstone in the raw rock is improved after the sandstone is combusted. The strength of the mudstone, the argillaceous sandstone or the argillaceous shale in the raw rock after combustion is improved, and the strength and the stability are good. 3. Industrial solid waste residue, which is a large amount of stacked, is environment-friendly, occupies land and pollutes. The land occupation, the resources and the environmental protection generated by the conventional stone breaking exploitation. The method is applied to cement concrete in batches and fully substitutes, can be consumed in a large amount, changes waste into valuable, and achieves two purposes. Especially, the railway is far transported to about 500km, and the