CN102503211A - Cement concrete and swelling agent thereof, and preparation method of swelling agent - Google Patents
Cement concrete and swelling agent thereof, and preparation method of swelling agent Download PDFInfo
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- CN102503211A CN102503211A CN2011103909031A CN201110390903A CN102503211A CN 102503211 A CN102503211 A CN 102503211A CN 2011103909031 A CN2011103909031 A CN 2011103909031A CN 201110390903 A CN201110390903 A CN 201110390903A CN 102503211 A CN102503211 A CN 102503211A
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Abstract
The invention relates to the field of building materials, and discloses swelling agent and a preparation method thereof, and cement concrete with the swelling agent. The cement concrete swelling agent comprises, by weight, 1-5% of nano TiO2, 45-55% of anhydrite, 10-20% of granulated blast furnace slag and 20-44% of aluminate clinker. The preparation method of the cement concrete mainly includes steps of raw material crushing, screening, mixing and the like. The swelling agent accounts for 6-10% of the cement concrete. The swelling agent is free of harmful substances such as formaldehyde, phenol and the like, and is clean and environment-friendly, and high in light catalytic activity, high in stability and high in antioxidant capacity. The method needs no calcination and is simple in process, energy-saving, environment-friendly and convenient in operation. The limited swelling rate of the swelling agent is 0.098% averagely and superior to the national standard compulsory index value larger than 0.025%, and harmful gases such as NOx and the like can be effectively removed.
Description
Technical field
The present invention relates to building material field, particularly a kind of cement expansive material and preparation method thereof and mix the cement concrete of joining this swelling agent.
Background technology
Cement expansive material is that a kind of and cement, water mix are after hydration reaction generates ettringite, calcium hydroxide or ettringite and calcium hydroxide; Make concrete produce the admixture of volumetric expansion; Be mainly used in the underground structure; Liquid material holds pond, HS highway pavement, bridge concrete surface layer, culvert, fields such as the anchor of prefabricated components, skeleton construction joint, pipeline connection.But existing composite expanding agent mostly contains objectionable impuritiess such as formaldehyde, phenol, and very long indoor meeting in use produces obnoxious flavour; Contaminate environment; The injury human health, and photocatalytic activity is low, the defective that poor stability and resistance of oxidation are not strong.This area is demanded the good swelling agent of a kind of environmental-protecting performance urgently.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art; The object of the present invention is to provide a kind of cement expansive material and preparation method thereof; This swelling agent does not contain objectionable impuritiess such as formaldehyde, phenol; Clean environment firendly, photocatalytic activity height, good stability, resistance of oxidation are strong, are particularly suitable for the concrete workses high to waterproof requirement such as underground garage, pond; This method need not calcined, and technology is simple, energy-conserving and environment-protective, easy to operate.
In order to reach above-mentioned technical purpose, the present invention adopts following technical scheme to be achieved.
(1) a kind of cement expansive material, its component and weight ratio are 1～5% nano-TiO
2, 45～55% anhydrite, 10～20% granulated blast-furnace slag and 20～44% aluminate clinkers.
Wherein, said nano-TiO
2The footpath grain be 10～40nm.
(2) a kind of preparation method of cement expansive material is characterized in that, may further comprise the steps:
The first step raw material pulverizing:
With anhydrite, granulated blast-furnace slag, aluminate clinker with crusher pulverize separately to particle diameter below 5mm;
The second step batching grinding:
A) take by weighing each component after the pulverizing according to the said weight percent of claim 1;
B) grinding 10～15 minutes in grinding machine of the anhydrite after will pulverizing earlier;
C) aluminate clinker after will pulverizing again dropped in the grinding machine grinding 15～20 minutes;
D) granulated blast-furnace slag after will pulverizing again dropped in the grinding machine grinding 20～25 minutes;
E) at last with nano-TiO
2Grinding is no less than 5 minutes in the input grinding machine;
The 3rd step sampling inspection:
Sample through the 1.18mm square hole sieve tail over≤0.5% or specific surface area>=200m
2/ kg gets final product.
(3) a kind of cement concrete is characterized in that, the admixture requirement 1 described cement expansive material of having the right, and said cement expansive material addition content is 6～10% of a cement weight.
Because the present invention has adopted and has contained nano-TiO
2Material, the swelling agent that makes this cement expansive material not only overcome objectionable impuritiess such as containing formaldehyde, phenol discharges the drawback of obnoxious flavour, clean environment firendly, and also photocatalytic activity height, good stability, resistance of oxidation are strong; This method need not calcined, and technology is simple, energy-conserving and environment-protective, easy to operate; This cement expansive material can be widely used in the concrete workses high to waterproof requirement such as underground garage, pond.Through test, 7 days limited expansion rate average out to 0.098% in this cement expansive material water is superior to GB >=0.025 and forces desired value.
Embodiment
Below in conjunction with embodiment the present invention is done further explanation.
Embodiment 1:
The first step raw material pulverizing:
With anhydrite, granulated blast-furnace slag with crusher, aluminate clinker pulverize separately to 5mm;
The second step batching grinding:
A) anhydrite of the 40kg after will pulverizing grinding 10 minutes in grinding machine;
B) grinding 15 minutes in grinding machine of the 45kg aluminate clinker after will pulverizing;
C) grinding 20 minutes in grinding machine of the 13kg granulated blast-furnace slag after will pulverizing;
D) drop into 2kg nano TiO 2 grinding 5 minutes in grinding machine at last.
This sample result of test evaluation is that it is 0.11% that the 1.18mm square hole sieve tails over.
Embodiment 2:
The first step raw material pulverizing:
With anhydrite, granulated blast-furnace slag with crusher, aluminate clinker pulverize separately to 5mm;
The second step batching grinding:
A) anhydrite of the 35kg after will pulverizing grinding 13 minutes in grinding machine;
B) grinding 18 minutes in grinding machine of the 50kg aluminate clinker after will pulverizing;
C) grinding 22 minutes in grinding machine of the 12kg granulated blast-furnace slag after will pulverizing;
D) drop into 3kg nano TiO 2 grinding 6 minutes in grinding machine at last;
This sample result of test evaluation is that it is 0.10% that the 1.18mm square hole sieve tails over.
Embodiment 3:
The first step raw material pulverizing:
With anhydrite, granulated blast-furnace slag with crusher, aluminate clinker pulverize separately to 5mm;
The second step batching grinding:
A) anhydrite of the 25kg after will pulverizing grinding 15 minutes in grinding machine;
B) grinding 20 minutes in grinding machine of the 55kg aluminate clinker after will pulverizing;
C) grinding 25 minutes in grinding machine of the 15kg granulated blast-furnace slag after will pulverizing;
D) drop into 5kg nano TiO 2 grinding 8 minutes in grinding machine at last;
This sample result of test evaluation is that it is 0.10% that the 1.18mm square hole sieve tails over.
Visible fineness index MV is 0.103 from embodiment 1-3, is superior in the GB≤0.5 recommend desired value; And through test, 7 days limited expansion rate average out to 0.098% in this cement expansive material water is superior to GB>=0.025% and forces desired value,
Embodiment 4:
Manufacture four cement concrete test specimens; Wherein cement, water, sand, stone proportioning are identical; A test specimen does not contain cement expansive material, and other three test specimens admixture respectively have the cement expansive material of embodiment 1, embodiment 2, embodiment 3 preparations, and are respectively 10%, 8%, 6% of cement weight.Through simultaneous test, test NOx average removal rate is 87.33% after the concrete final set of this swelling agent preparation of admixture, and other indexs such as concrete strength are all normal.
Claims (4)
1. a cement expansive material is characterized in that, its weight percent component is: 1～5% nano-TiO
2, 45～55% anhydrite, 10～20% granulated blast-furnace slag and 20～44% aluminate clinkers.
2. cement expansive material according to claim 1 is characterized in that, said nano-TiO
2Particle diameter be 10～40nm.
3. the preparation method of a cement expansive material is characterized in that, may further comprise the steps:
The first step raw material pulverizing:
With anhydrite, granulated blast-furnace slag, aluminate clinker with crusher pulverize separately to particle diameter below 5mm;
The second step batching grinding:
A) take by weighing each component after the pulverizing according to the said weight percent of claim 1;
B) grinding 10～15 minutes in grinding machine of the anhydrite after will pulverizing earlier;
C) aluminate clinker after will pulverizing again dropped in the grinding machine grinding 15～20 minutes;
D) granulated blast-furnace slag after will pulverizing again dropped in the grinding machine grinding 20～25 minutes;
E) at last with nano-TiO
2Grinding is no less than 5 minutes in the input grinding machine;
The 3rd step sampling inspection:
Sample through the 1.18mm square hole sieve tail over≤0.5% or specific surface area>=200m
2/ kg gets final product.
4. a cement concrete is characterized in that, the admixture requirement 1 described cement expansive material of having the right, and said cement expansive material addition content is 6～10% of a cement weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110390903.1A CN102503211B (en) | 2011-12-01 | 2011-12-01 | Cement concrete and swelling agent thereof, and preparation method of swelling agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110390903.1A CN102503211B (en) | 2011-12-01 | 2011-12-01 | Cement concrete and swelling agent thereof, and preparation method of swelling agent |
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| Publication Number | Publication Date |
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| CN102503211A true CN102503211A (en) | 2012-06-20 |
| CN102503211B CN102503211B (en) | 2015-06-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105555129A (en) * | 2013-09-19 | 2016-05-04 | 尤妮佳股份有限公司 | Manufacturing method and manufacturing device for animal excrement treatment material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357505A (en) * | 2001-11-10 | 2002-07-10 | 李乃珍 | Dispersing concrete sweller |
| CN1903780A (en) * | 2005-07-28 | 2007-01-31 | 上海三瑞化学有限公司 | Nano-photo catalytic cement base ground material |
-
2011
- 2011-12-01 CN CN201110390903.1A patent/CN102503211B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357505A (en) * | 2001-11-10 | 2002-07-10 | 李乃珍 | Dispersing concrete sweller |
| CN1903780A (en) * | 2005-07-28 | 2007-01-31 | 上海三瑞化学有限公司 | Nano-photo catalytic cement base ground material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105555129A (en) * | 2013-09-19 | 2016-05-04 | 尤妮佳股份有限公司 | Manufacturing method and manufacturing device for animal excrement treatment material |
| US10500593B2 (en) | 2013-09-19 | 2019-12-10 | Unicharm Corporation | Manufacturing method and manufacturing device for animal excrement treatment material |
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| CN102503211B (en) | 2015-06-17 |
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Granted publication date: 20150617 Termination date: 20171201 |