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Calcium magnesium silico-phosphate cement and processing method of same

A calcium phosphate, silicon magnesium technology, applied in the field of building materials, can solve problems such as consumption of large mineral resources and poor durability

Inactive Publication Date: 2018-01-19
GUIZHOU PHOSPHORUS MAGNESIUM MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is believed that the uncoordinated contradiction between the cement industry and resources, energy and environment is mainly reflected in the following aspects: Portland cement production needs to consume a large amount of non-renewable mineral resources, and its durability is poor

Method used

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  • Calcium magnesium silico-phosphate cement and processing method of same

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Effect test

Embodiment 1

[0021] A calcium silicate magnesium phosphate cement, comprising the following raw materials in parts by mass: 120 kg of diammonium phosphate, 70 kg of magnesium oxide, 50 kg of fly ash, 3 kg of borax, 2 kg of potassium dihydrogen phosphate, and 1 kg of sodium hexametaphosphate.

[0022] Described diammonium phosphate has a nutrient content of 45%.

[0023] The magnesium oxide is obtained by calcining the raw materials at 300°C for 3 hours, at 700°C for 7 hours, at 950°C for 10 hours, and at 600°C for 6 hours.

[0024] Described calcium silicate magnesium cement, comprises following preparation method:

[0025] 1) Grind magnesium oxide, borax and fly ash to 200, potassium dihydrogen phosphate, sodium hexametaphosphate and diammonium phosphate to 100;

[0026] 2) Put the uniformly stirred mixture into a drier to dry to obtain calcium-silicon-magnesium phosphate cement.

[0027] The drying is at 140°C for 3 hours, at 90°C for 7 hours, and at 60°C for 6 hours.

Embodiment 2

[0029] A calcium silicate magnesium phosphate cement, comprising the following raw materials in parts by mass: 130 kg of diammonium phosphate, 80 kg of magnesium oxide, 60 kg of fly ash, 4 kg of borax, 3 kg of potassium dihydrogen phosphate, and 1.5 kg of sodium hexametaphosphate.

[0030] Described diammonium phosphate has a nutrient content of 50%.

[0031] The magnesium oxide is obtained by calcining the raw materials at 310°C for 3.5 hours, at 710°C for 7.6 hours, at 970°C for 11 hours, and at 610°C for 6.5 hours.

[0032] Described calcium silicate magnesium cement, comprises following preparation method:

[0033] 1) Grinding magnesium oxide, borax and fly ash to 230 mesh, potassium dihydrogen phosphate, sodium hexametaphosphate and diammonium phosphate to 120 mesh;

[0034] 2) Put the uniformly stirred mixture into a drier to dry to obtain calcium-silicon-magnesium phosphate cement.

[0035] The drying is at 145°C for 3.5 hours, at 100°C for 7.5 hours, and at 70°C for ...

Embodiment 3

[0037] A calcium silicate magnesium phosphate cement, comprising the following raw materials in parts by mass: 140 kg of diammonium phosphate, 85 kg of magnesium oxide, 65 kg of fly ash, 5 kg of borax, 3.5 kg of potassium dihydrogen phosphate, and 2.5 kg of sodium hexametaphosphate.

[0038] Described diammonium phosphate has a nutrient content of 60%.

[0039] The magnesium oxide is obtained by calcining the raw materials at 320°C for 4 hours, at 720°C for 8 hours, at 970°C for 135 hours, and at 630°C for 7 hours.

[0040] Described calcium silicate magnesium cement, comprises following preparation method:

[0041] 1) Grinding magnesium oxide, borax and fly ash to 300 mesh, potassium dihydrogen phosphate, sodium hexametaphosphate and diammonium phosphate to 140 mesh;

[0042] 2) Put the uniformly stirred mixture into a drier to dry to obtain calcium-silicon-magnesium phosphate cement.

[0043] The drying is at 148°C for 4.5 hours, at 105°C for 9 hours, and at 75°C for 7 hou...

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Abstract

The invention belongs to the field of building materials, and relates to calcium magnesium silico-phosphate cement and a processing method of same. The calcium magnesium silico-phosphate cement includes the following raw materials: diammonium phosphate, magnesium oxide, fly ash, borax, potassium dihydrogen phosphate, and sodium hexametaphosphate. The maximum strength of the calcium magnesium silico-phosphate cement is 62.5R; due to addition of fly ash accounting for 26-29%, cost is reduced by 120-150 Yuan, coal is saved by 270-3200 kg and CO2 emission is reduced by 1960-2300 kg in production of 1 ton of the composite calcium magnesium silico-phosphate cement.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a calcium-silicon-magnesium phosphate cement and a processing method thereof. Background technique [0002] my country is a big country in cement production and consumption. The annual cement output has exceeded half of the world's annual cement output. Since 1985, my country's annual cement output has been ranking first in the world. In 2011, my country's cement output was 2.06 billion tons, and there are thousands of cement production enterprises in the country. home, employing millions of people. With the implementation of the construction of new socialist countryside, urban modernization, highway and railway projects, water conservancy and hydropower projects, the strategy of developing the western region, and the strategy of ocean development, my country will still build a large number of residences and various public infrastructures, which means that in For a lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B12/02
Inventor 杨永彬杨步雷李泽钢项军付义宏张燕向前勇王琴彭步平宋维相杨晓勇安柯王闯
Owner GUIZHOU PHOSPHORUS MAGNESIUM MATERIAL CO LTD
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