Low alkali high-strength cement

A high-strength, cement-based technology, applied in the field of cement, can solve the problem that the setting time and strength of ordinary cement and low-alkali cement cannot meet the needs of rapid construction.

Inactive Publication Date: 2007-03-07
王红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the setting time and strength of the existing ordinary cement and low-alkali cement cannot meet the needs of rapid construction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: carry out batching by the mineral clinker of following weight part

[0009] C 4 A 3 S 20 copies, C 2 S 30 copies, C 3 25 parts of S, CaSO 4 10 copies, C 4 AF 10 copies, C 3 A 5 copies.

[0010] The preparation method is as follows: calcining uncalcined aluminum raw materials, calcareous raw materials, clay raw materials, corrected raw materials, and gypsum corresponding to the above mineral clinker, and grinding the calcined mineral clinker and gypsum It can be prepared by mixing evenly.

Embodiment 2

[0011] Embodiment 2: carry out batching by the mineral clinker of following weight part

[0012] C 4 A 3 S 30 copies, C 2 S 20 copies, C 3 15 parts of S, CaSO 4 15 copies, C 4 AF 5 copies, C 3 A 2 copies.

Embodiment 3

[0013] Embodiment 3: carry out batching by the mineral clinker of following weight part

[0014] C 4 A 3 S 22 copies, C 2 S 22 copies, C 3 30 parts of S, CaSO 4 5 copies, C 4 AF 8 copies, C 3 A 4 servings.

[0015] Examples 2-3 are prepared in the same manner as Example 1.

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PUM

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Abstract

The invention relates to a low-alkali high-strength cement comprising the following clinker components (by weight parts), C4A3S 20-30 parts, C2S 20-30 parts, C3S 15-30 parts, CaSO4 5-15 parts, C4AF 5-10 parts, C3A 2-5 parts, the cement may also contain CaCO3 5-10 parts or / and SiO2 t-10 parts as additives.

Description

technical field [0001] The present invention relates to a kind of cement, especially relates to a kind of low-alkali cement. Background technique [0002] The main components of the existing low-alkali cement are anhydrous calcium sulfoaluminate, dicalcium silicate and a small amount of gypsum, and its pH value in 1 to 7 days is 10.5 to 11.5, which is relatively high. When it is used in cement products such as GRC components, the fibers and other components in these products will lose their effect quickly under the corrosion of alkali solution. In addition, the setting time and strength of the existing ordinary cement and low-alkali cement cannot well meet the needs of rapid construction. Contents of the invention [0003] The object of the present invention is to provide a kind of low-alkali high-strength cement, the cement has characteristics such as low alkali, high strength, fast hardening, quick-drying, etc., and the pH value of the cement is 8-9.5 within 1-7 days. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/00
Inventor 王红王新生秦艳芬周占轩王淑芳
Owner 王红
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