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Gelatinization material of phosphoaluminic salt system

A cementitious material, phosphoaluminate technology, applied in the field of inorganic material science, can solve the problems of shortage of high-strength cement, the output of special cement can not meet the needs of special projects, etc., to achieve excellent durability, excellent performance, low firing temperature and other problems. Effect

Inactive Publication Date: 2004-05-26
胡佳山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the current production of special cement in my country cannot meet the needs of special projects, and there is a serious shortage of high-strength cement

Method used

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  • Gelatinization material of phosphoaluminic salt system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The suitable minerals limestone, apatite and bauxite are selected. Mix and homogenize according to the required chemical composition, after grinding, calcined at a high temperature of 1350-1400°C, grind the clinker obtained from the firing into fine powder, mix it with water, and add water to control the fluidity of the slurry 118±2mm is suitable. The main chemical composition of its raw materials is shown in Table 5. The chemical compositions of raw meal and clinker are shown in Table 6 and Table 7. The strength of the aluminophosphate cement mortar specimens is shown in Table 8.

[0068] The main chemical composition of table 5 raw material (w / %)

[0069] mineral

[0070] L.O.I.SiO 2 Al 2 o 3 Fe 2 o 3 CaO MgO P 2 o 5

[0071] 14.41 12.87 66.05 0.90 0.67 0.12

[0072] alum

[0073] 15.41 2.46 72.18 1.08 3.03 1.58

[0074] earth

[0075] 14.10 21.22 52.32 8.28 3.11 0.79

[0076] Stone 42.28 4.09 0.20 0.22 45.27 3.75

...

Embodiment 2

[0083] The production process and raw material composition as described in Example 1, the strength of the raw meal, clinker and cement mortar specimens of the aluminophosphate cement are shown in Table 6, Table 7 and Table 8.

[0084] Table 6. Chemical Composition of Raw Meal (w / %)

[0085] L.O.I.SiO 2 Al 2 o 3 Fe 2 o 3 CaO MgO P 2 o 5

example 1

[0086] Example 1 20.36 5.20 37.44 1.42 24.34 2.41 8.27

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Abstract

A cementing material is a cement whose main components are calcium phosphoaluminate, calcium aluminate and calcium phosphate. Its clinker contains such chemical components (wt%) as CaO (30-60), Al2O3 (17-50), SiO2 (1-15), P2O5 (10-30), Fe2O3 (1-8) and MgO (1-7). Its advantages are high and early strength, high refractory nature, and high compatibility with existing cement.

Description

(1) Technical field [0001] The invention belongs to the field of inorganic material science, in particular to a hydration-hardening gelling material. (2) Background technology [0002] At present, the cement used in domestic and foreign construction projects is mainly traditional Portland cement. The annual output of cement in my country has reached 640 million tons (calculated in 2002), which is close to 1 / 3 of the world's total output. As a developing country, the sustainable development of my country's national economy will still increase the demand for cement by a large margin. By 2010, the annual demand for cement in my country will reach more than 800 million tons. The cement industry development model of quantitative expansion will overwhelm my country's energy, resources and environment. At present, my country's cement industry is still an industry with high consumption, low efficiency, poor environmental compatibility and high environmental cost. [0003] With th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/32C04B12/02
CPCC04B7/32
Inventor 胡佳山
Owner 胡佳山
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