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Grinding aid for preventing high-grade cement from cracking

A high-grade cement and grinding aid technology, applied in the field of cement additives, can solve problems such as easy cracking, and achieve the effects of convenient production, increased use range, and sufficient raw material sources.

Inactive Publication Date: 2017-03-29
DONGYUAN HONGCHAO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a grinding aid for preventing cracking of high-grade cement to solve the problem that existing high-grade cement is easy to crack in structural engineering applications

Method used

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  • Grinding aid for preventing high-grade cement from cracking
  • Grinding aid for preventing high-grade cement from cracking
  • Grinding aid for preventing high-grade cement from cracking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A grinding aid for preventing high-grade cement from cracking, consisting of the following components by weight:

[0041] 1) Reinforcing component: Type I polymer polyol 20%;

[0042] Triethanolamine 10%;

[0043] Diethanol monoisopropanolamine 20%;

[0044] 2) Antistatic component: glycerol 4%;

[0045] Butanediol 4%;

[0046] 3) Fluidity improver component: calcium saccharified complex 8%;

[0047] 4) Component of anti-cracking improver: dextrin 4%;

[0048] Cellulose 4%;

[0049] Hemicellulose 2%;

[0050] 5) Water 24%.

[0051] The grinding aid made from the above components is mixed into the cement grinding production at a ratio of 800g / T.

Embodiment 2

[0053] A grinding aid for preventing high-grade cement from cracking, consisting of the following components by weight:

[0054] 1) Reinforcing component: Type I polymer polyol 20%;

[0055] Monoethanol diisopropanolamine 25%;

[0056] 2) Antistatic component: triethylene glycol 5%;

[0057] Diethylene glycol 2%;

[0058] 3) Fluidity improver component: sodium lignosulfonate 2%;

[0059] Glycated Calcium Complex 10%;

[0060] 4) Anti-cracking improver component: carboxymethyl cellulose 2%;

[0061] Ethyl cellulose 8%;

[0062] 5) Water 26%:

[0063] The grinding aid made from the above components is mixed into the cement grinding production at a ratio of 800g / T.

Embodiment 3

[0065] A grinding aid for preventing high-grade cement from cracking, consisting of the following components by weight:

[0066]

[0067] 2) Antistatic component: propylene glycol 3%;

[0068] Ethylene glycol 3%;

[0069] 3) Fluidity improver component: calcium saccharified complex 10%;

[0070] Naphthalenesulfonate formaldehyde condensate 4%;

[0071] 4) Component of anti-cracking improver: dextrin 2%;

[0072] Hydroxypropyl Cellulose 4%;

[0073] 5) Water 34%.

[0074] The grinding aid made from the above components is mixed into the cement grinding production at a ratio of 800g / T.

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Abstract

The invention provides a grinding aid for preventing high-grade cement from cracking. The grinding aid contains an anti-cracking improver component, a reinforcing component, an anti-static component and a fluidity improver component. By using the anti-cracking improver component, cracking, caused by cement hydration heat and external environment factors, of the high-grade cement is relieved; by using the reinforcing component, the early strength and later strength of the cement are improved; by using a grinding aiding component, the grinding efficiency is improved; by using the anti-static component, the tendency of aggregation of powder particles in a mill is prevented; the durability and fluidity of the cement are both improved.

Description

technical field [0001] The invention relates to the technical field of cement additives, in particular to a grinding aid for preventing high-grade cement from cracking. Background technique [0002] At present, low-grade cement with the label P.C32.5 is no longer used in structural engineering abroad, and high-grade cement with P.O42.5 and P.II52.5 and above is widely used in practice. As for cement downstream products concrete products, for cement production enterprises and construction units, using low-grade cement to produce ready-mixed concrete is relatively easy in cost control, pouring, maintenance and other construction aspects, but it is very important for improving the durability and energy saving of buildings. In terms of emission reduction, it is harmful but not beneficial; if high-grade cement is used, it can increase the life of the building, reduce the waste of resources caused by repeated maintenance, and greatly save energy consumption. However, the early hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/52
CPCC04B40/0039C04B2103/52C04B24/24C04B24/122C04B24/026C04B24/10C04B24/38C04B24/383C04B24/18C04B24/226
Inventor 蔡洪
Owner DONGYUAN HONGCHAO TECH