A kind of high-strength self-toughening building cement and its preparation method

A construction cement and self-toughening technology, applied in the field of construction materials, can solve the problems of stimulating cement gel strength, easy shrinkage of high-strength concrete, and easy early cementation, etc., to improve easy shrinkage, improve pumping effect, and improve uniformity Effect

Active Publication Date: 2019-12-06
江西银杉白水泥股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the shortcomings of existing high-strength cements such as sulfoaluminate cement and iron-aluminate cement, which are easy to be cemented in advance, difficult to pump, and have a large shrinkage rate, the present invention proposes a high-strength self-toughening building cement and a preparation method, which significantly improves the The defect of easy shrinkage of high-strength concrete can maximize the strength of cement gel, which is of great significance to realize the reduction of cement

Method used

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  • A kind of high-strength self-toughening building cement and its preparation method

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Effect test

Embodiment 1

[0031] A kind of high-strength self-toughening building cement, raw materials are calculated by weight, comprising:

[0032] 50 parts of sulphoaluminate cement

[0033] 50 parts of aluminate cement

[0034] Chlorinated paraffin 5 parts

[0035] EVA wax 2 parts

[0036] 30 parts of fly ash

[0037] Tailings 30 parts

[0038] Phosphorus slag 30 parts

[0039] Steel slag 10 parts

[0040] 5 parts wood fiber

[0041] The wood fibers are soaked in calcium chloride solution and dried to obtain wood fibers adsorbing calcium chloride;

[0042] A preparation of high-strength self-toughening building cement, comprising the following steps:

[0043] (1) Use a kneader to disperse and grind sulfoaluminate cement, ferroaluminate cement, chlorinated paraffin, and EVA wax evenly, at a temperature of 100°C, and mix for 2 hours to obtain sulfoaluminum evenly wrapped with chlorinated paraffin and EVA wax Salt cement powder;

[0044] (2) Loosely disperse the wood fibers adsorbed by calc...

Embodiment 2

[0047] A high-strength self-toughening building cement, raw materials by weight, comprising:

[0048] 60 parts of sulphoaluminate cement

[0049] 60 parts of aluminate cement

[0050] Chlorinated paraffin 8 parts

[0051] EVA wax 2 parts

[0052] Fly ash 15 parts

[0053] Tailings 10 parts

[0054] Phosphorus slag 10 parts

[0055] Steel slag 30 parts

[0056] 10 parts wood fiber;

[0057] The wood fibers are soaked in calcium chloride solution and dried to obtain wood fibers adsorbing calcium chloride;

[0058] A preparation of high-strength self-toughening building cement, comprising the following steps:

[0059] (1) Use a heatable agitator to disperse and grind iron-aluminate cement, iron-aluminate cement, chlorinated paraffin, and EVA wax evenly, at a temperature of 100°C, and mix for 24 hours to obtain evenly wrapped chlorinated paraffin and EVA wax Sulphoaluminate cement, ferroaluminate cement powder;

[0060](2) Loosely disperse the wood fibers adsorbed by cal...

Embodiment 3

[0063] A high-strength self-toughening building cement, raw materials by weight, comprising:

[0064] 70 parts of sulphoaluminate cement

[0065] 50 parts of aluminate cement

[0066] Chlorinated paraffin 5 parts

[0067] EVA wax 3 parts

[0068] Tailings 5 ​​parts

[0069] Phosphorus slag 3 parts

[0070] Steel slag 15 parts

[0071] 16 parts of wood fiber;

[0072] The wood fibers are soaked in calcium chloride solution and dried to obtain wood fibers adsorbing calcium chloride;

[0073] A preparation of high-strength self-toughening building cement, comprising the following steps:

[0074] (1) Use a kneader to disperse and grind sulfoaluminate cement, ferroaluminate cement, chlorinated paraffin, and EVA wax evenly, at a temperature of 160°C, and mix for 12 hours to obtain sulfoaluminum evenly wrapped with chlorinated paraffin and EVA wax Salt cement, aluminate cement powder;

[0075] (2) Loosely disperse the wood fibers adsorbed by calcium chloride to obtain loose ...

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Abstract

The invention aims at providing high-strength self-toughened building cement and a preparation method thereof. Under the condition that compressive strength and flexural strength of a concrete member are not influenced, the problem that sulphoaluminate and iron aluminate high-strength cement can be extremely easily coagulated can be effectively solved. According to the technical scheme, sulphoalumiante cement, iron aluminate cement, chlorinated paraffin and EVA wax are dispersed and uniformly ground and then are combined with wood fibers subjected to soaking and drying treatment by virtue of fly ash, tailings, phosphorus slag, steel slag and calcium chloride liquid, so that the high-strength self-toughened building cement is obtained. The high-strength self-toughened building cement provided by the invention is not only high in strength but also has self toughness effect, the defect that high-strength concrete can be shrunk easily can be obviously overcome, strength of cement gel is excited to the utmost extent, and the high-strength self-toughened building cement has great significance on realization of cement reduction.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a high-strength self-toughening building cement. Background technique [0002] New building materials are a new generation of upgraded building materials produced on the basis of traditional building materials, mainly including new wall materials, thermal insulation materials, waterproof sealing materials and decoration materials. With the advent of the low-carbon era, under the background of the country's promotion of energy saving and consumption reduction, transformation and development, green, low-carbon, energy saving and environmental protection have become the unavoidable mission of new building materials. For this reason, new building materials with the goals of green environmental protection, waste utilization, heat insulation, heat preservation, fire prevention, light weight, high strength, replacement, low cost, and soil saving have gained huge new opportuni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B20/02
CPCC04B20/023C04B28/06C04B2111/00017C04B24/08C04B18/08C04B18/12C04B18/145C04B18/142C04B18/26C04B24/26
Inventor 陈庆曾军堂
Owner 江西银杉白水泥股份有限公司
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