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High-performance cement and its preparation method

A high-performance, cement technology, applied in the field of building materials, can solve the problems of occupation, more land, hindering the development and application of new nickel-iron technology in factories, etc., and achieve the functions of reducing product cost, high viscosity, wrapping and supporting strong effect

Inactive Publication Date: 2018-12-14
广东鸿丰水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the factory is deep inland, its large stockpiles will occupy more and more land, which will increasingly become the main problem hindering the development of the factory and the promotion and application of new ferronickel technology

Method used

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  • High-performance cement and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Mix 40 parts of sulphoaluminate cement clinker, 5 parts of submerged arc furnace granulated slag fine powder, and 1 part of calcined coal gangue fine powder according to the set weight ratio, and put them into a cement mill to grind them until the specific surface area is >450m 2 / kg, then add 0.1 part of early strength agent, 0.1 part of water reducer, 0.01 part of air-entraining agent and 0.1 part of dispersant to the cement mill by weight ratio, and the mixed material from the grinding head of the cement mill is used The hoist transports the finished product into the homogenization bin, and the high-performance cement is obtained after homogenization by the air generated at the bottom of the homogenization bin.

Embodiment 2

[0026] Mix 42 parts of sulfoaluminate cement clinker, 56 parts of submerged arc furnace granulated slag fine powder, and 1.5 parts of calcined coal gangue fine powder according to the set weight ratio, and put them into a cement mill to grind them until the specific surface area is >450m 2 / kg, then add 0.5 parts of early strength agent, 0.2 parts of water reducer, 0.02 parts of air-entraining agent and 0.1-0.5 parts of dispersant into the cement mill according to the weight ratio, and the mixed material coming out of the grinding head of the cement mill , transported into the finished product homogenization bin by a hoist, and the high-performance cement can be obtained after homogenization by the air generated at the bottom of the homogenization bin.

Embodiment 3

[0028] Mix 46 parts of sulphoaluminate cement clinker, 7 parts of submerged arc furnace granulated slag fine powder, and 2 parts of calcined coal gangue fine powder according to the set weight ratio, and put them into a cement mill to grind them until the specific surface area is >450m 2 / kg, then add 1.0 part of early strength agent, 0.3 part of water reducing agent, 0.03 part of air-entraining agent and 0.1-0.5 part of dispersant into the cement mill according to the weight ratio, and the mixed material coming out of the grinding head of the cement mill , transported into the finished product homogenization bin by a hoist, and the high-performance cement can be obtained after homogenization by the air generated at the bottom of the homogenization bin.

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Abstract

The invention relates to high-performance cement and a preparation method thereof. The high-performance cement is characterized by being prepared from the following raw materials in parts by weight: 40 to 50 parts of sulphoaluminate cement clinker, 5 to 10 parts of submerged arc furnace granulated slag micro-powder, 1 to 3 parts of calcined coal gangue micro-powder, 0.1 to 2 parts of an early strength agent, 0.1 to 0.5 part of a water reducing agent, 0.01 to 0.05 part of an air entraining agent and 0.1 to 0.5 part of a dispersant, wherein the water reducing agent is a polycarboxylate water reducing agent. According to the high-performance cement and the preparation method thereof, the submerged arc furnace granulated slag micro-powder and the calcined coal gangue micro-powder are utilized to produce the high-performance cement, so that the purposes of protecting environment, saving resources and developing low-carbon economy are achieved; the high-performance cement has the characteristics of low carbon, low alkalinity, acid resistance, alkaline resistance, early strength and rapid hardening; the long-term strength is increased sustainably; the safety and the durability of reinforced concrete are improved; the doping proportion of the cement clinker in the high-performance cement can be greatly reduced; the economic benefit is remarkable; the high-performance cement is widely applied to engineering construction, such as civil construction, water conservancy and national defence.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a high-performance cement and a preparation method thereof. Background technique [0002] Cement is a kind of inorganic gel material that can be hardened in air or better hardened in water after being stirred with water, and can firmly bind sand, stone and other materials together. For a long time, cement, as an important cementitious material, has been widely used in civil engineering, water conservancy, national defense and other projects. With the growth of my country's economy, the country has increased the construction of infrastructure and the development of real estate, the demand for cement is increasing. In 2011, the output of my country's cement was about 2.1 billion tons, ranking first in the world. my country is a big cement producing country, not a strong cement producing country. Because the energy and resource consumption in cement production is high, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B2201/50C04B2201/52C04B18/142C04B18/10C04B22/14C04B24/122C04B24/04C04B22/143C04B2103/302C04B2103/304C04B24/126C04B22/085C04B24/42
Inventor 张聪聪
Owner 广东鸿丰水泥有限公司
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