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High-reliability cement

A reliability and cement technology, applied in the field of cement and high reliability cement, can solve the problems of low strength, low brine resistance, high cost, etc., achieve excellent water resistance and flame retardancy, broad market application prospects, high strength and the effect of abrasion resistance

Inactive Publication Date: 2015-04-01
江苏一箭建设工程有限公司常熟分公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, Portland cement is the most widely used cement in the construction field. There are many quality problems in the application process of this type of cement, such as: high energy consumption, high cost, pollution to the environment, poor flame retardancy, and Low salt and bittern ability; although some construction units use magnesium oxychloride cement, which is energy-saving, environmentally friendly, excellent in flame retardancy, and strong in salt and bittern resistance, to overcome the existing problems of Portland cement, but magnesium oxychloride cement also has insufficient strength in the application process. Many problems, such as high temperature, surface brine and frost, poor wear resistance and water resistance, etc.

Method used

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preparation example Construction

[0017] figure 1 It is a process step diagram of the method for preparing high-reliability cement in the embodiment of the present invention; the high-reliability cement is made of the following raw materials in weight percentage: 53-60% of activated magnesium oxide, 10-12% of magnesium chloride hexahydrate, and 18% of glass powder ~20%, low-temperature rice husk ash 12-15%; the preparation method of the high-reliability cement includes the following steps: a) preparing glass powder, b) preparing low-temperature rice husk ash, c) mixing raw materials to prepare slurry , d) hardening and ball milling to produce finished products.

[0018] The high-reliability cement mentioned in the present invention uses traditional magnesium oxychloride cement as the main body, and the strength, wear resistance and water resistance of the cement are significantly improved by adding filler glass powder and modifier low-temperature rice husk ash. Compared with Portland cement, which is widely u...

Embodiment 1

[0020] The specific preparation method is as follows:

[0021] a) To prepare glass powder, put the ordinary recycled glass into a special pulverizer to obtain fine glass powder with a particle size of 0.3-0.5 mm and coarse glass powder with a particle size of 1.2-1.4 mm, and then mix the fine glass powder and Coarse glass powder is mixed according to the mass ratio of 1.5:1 to prepare glass powder.

[0022] b) To prepare low-temperature rice husk ash, put the ordinary recycled rice husk in a muffle furnace, burn it at 500-600°C for 40 minutes, then cool the rice husk ash to room temperature, grind it with a pulverizer and Pass through a 180-mesh sieve to obtain low-temperature rice husk ash powder.

[0023] c) Mix raw materials to prepare slurry. The specific preparation process is: firstly weigh 60% active magnesium oxide, 10% magnesium chloride hexahydrate, 18% glass powder, and 12% low-temperature rice husk ash according to weight percentage; Dissolve magnesium chloride h...

Embodiment 2

[0026] The specific preparation method is as follows:

[0027] a) To prepare glass powder, put the ordinary recycled glass into a special pulverizer to obtain fine glass powder with a particle size of 0.3-0.5 mm and coarse glass powder with a particle size of 1.2-1.4 mm, and then mix the fine glass powder and Coarse glass powder is mixed according to the mass ratio of 1.5:1 to prepare glass powder.

[0028] b) To prepare low-temperature rice husk ash, put the ordinary recycled rice husk in a muffle furnace, burn it at 500-600°C for 40 minutes, then cool the rice husk ash to room temperature, grind it with a pulverizer and Pass through a 180-mesh sieve to obtain low-temperature rice husk ash powder.

[0029] c) Mixing raw materials to prepare slurry, the specific preparation process is as follows: firstly weigh 53% active magnesium oxide, 12% magnesium chloride hexahydrate, 20% glass powder, and 15% low-temperature rice husk ash according to weight percentage; Dissolve magnes...

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Abstract

The invention discloses high-reliability cement. The cement is prepared from raw materials in percentage by weight as follows: 53%-60% of active magnesium oxide, 10%-12% of magnesium chloride hexahydrate, 18%-20% of glass powder and 12%-15% of low-temperature rice hull ash. The high-reliability cement has low production cost, is environment-friendly and energy-saving and has higher strength and wear resistance, excellent water resistance and fire resistance and wide market application prospect.

Description

technical field [0001] The invention relates to a cement, in particular to a high-reliability cement, and belongs to the technical field of building materials. Background technique [0002] Cement is a powdery hydraulic inorganic gelling material. It forms a slurry after being stirred with water. It can be hardened in the air or better hardened in water. It can also firmly bind sand, stone and other materials together. Concrete made of crushed stone not only has high strength after hardening, but also can resist the erosion of fresh water or salt water. For a long time, cement, as an important cementitious material, has been widely used in civil engineering, water conservancy, national defense and other projects. [0003] At present, Portland cement is the most widely used cement in the construction field. There are many quality problems in the application process of this type of cement, such as: high energy consumption, high cost, pollution to the environment, poor flame r...

Claims

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Application Information

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IPC IPC(8): C04B28/32C04B14/22C04B18/24
CPCY02W30/91
Inventor 刘海梅
Owner 江苏一箭建设工程有限公司常熟分公司
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