CN104261795A - Phosphate cementing material and preparation method thereof - Google Patents
Phosphate cementing material and preparation method thereof Download PDFInfo
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- CN104261795A CN104261795A CN201410480512.2A CN201410480512A CN104261795A CN 104261795 A CN104261795 A CN 104261795A CN 201410480512 A CN201410480512 A CN 201410480512A CN 104261795 A CN104261795 A CN 104261795A
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Abstract
The invention discloses a phosphate cementing material and a preparation method thereof. The phosphate cementing material comprises the following components in parts by mass: 100 parts of phosphate solution, 10-70 parts of metakaolin, 3-30 parts of thickening time control agent and 0.5-2 parts of defoaming agent. The phosphate cementing material has the advantages of short setting and hardening time and higher early strength; the phosphate cementing material can be used for cementing other materials, and can be used as a substrate for preparing a fibrous composite material or used as a coating material; and the method has the advantages of simple preparation technique, low equipment investment and low cost.
Description
Technical field
The present invention relates to inorganic coagulation material field, particularly relate to a kind of phosphate concrete and preparation method thereof.
Background technology
Gelling material refers to the physics chemical action by self, is become in the process of hard stone shape body from plasticity-slurry, and shot or bulk material bonding can be become overall material.Different environment is may be used for, as fields such as material engineering, Structural Engineering, traffic engineering, metallurgical industry according to the difference such as mechanical property, water tolerance, high thermal resistance after its sclerosis.Phosphate concrete normally by metal oxide and phosphoric acid or soluble phosphate, and additive, mineral admixture according to a certain percentage, generating with phosphoric acid salt is the inorganic coagulation material of Binder Phase.Phosphate concrete has good mechanical property, adhesive property, good endurance, and comprise frost resistance, weather fluctuation, permeability resistance etc., therefore, phosphate concrete has very large application prospect.
Phosphate concrete can be divided into hydration and hardening, soda acid to harden and mineral bonding different materials.When at room temperature there is sclerosis, wherein first two material early strength is higher, and the latter's early strength is lower, and setting and harden speed is slow.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of phosphate concrete and preparation method thereof, condensation of materials setting rate is slow to be at normal temperatures intended to solve prior art, the problem that early strength is lower.
Technical scheme of the present invention is as follows:
A kind of phosphate concrete, wherein, by mass parts, its composition comprises phosphate solution 100 parts, metakaolin 10 ~ 70 parts, adjustable solidification agent 3 ~ 30 parts and defoamer 0.5 ~ 2 part.
Described phosphate concrete, wherein, adds fine aggregate in described phosphate concrete, and the mass ratio of described fine aggregate and described phosphate concrete is 0.5 ~ 2.
Described phosphate concrete, wherein, described phosphate solution is the one or more combination thing in primary ammonium phosphate, aluminium dihydrogen phosphate and aluminium triphosphate.
Described phosphate concrete, wherein, the solid content of described phosphate solution is 60.0% ~ 80.0%.
Described phosphate concrete, wherein, described metakaolin is that kaolin is levigate for powder gained 750 ~ 900 DEG C of temperature lower calcinations 2 ~ 10 hours.
Described phosphate concrete, wherein, described adjustable solidification agent is the one or more combination thing of magnesia, brucite, silicate series cement, aluminate cement and aluminosulfate cement.
Described phosphate concrete, wherein, described defoamer is the one in silicone antifoam agent, mineral oil antifoam agent and polyphosphazene polymer ether defoaming agent.
Described phosphate concrete, wherein, described silicone antifoam agent is higher alcohols defoamer, and defoaming activity material is organo-siloxane and hydrophobic silicic aerogels.
For the preparation of a method for phosphate concrete as above, it comprises step:
A, the phosphate solution of preparation is mixed according to mass ratio with metakaolin powder, defoamer, stir and obtain even slurry;
B, according to mass ratio adjustable solidification agent to be mixed with described even slurry and obtain slurry mixture;
C, described slurry mixture is injected cast or compression moulding in mould, maintenance 2 ~ 24 hours under room temperature; Or first through room temperature maintenance after 2 hours again through microwave curing, obtain phosphate concrete.
Beneficial effect: phosphate concrete condensation of the present invention is very fast with setting time, improves early strength; Can other material cementing, and can be used as base material and prepare fibre composite, or as coated material; Its preparation technology is simple, equipment investment is few, cost is low.
Embodiment
The invention provides a kind of phosphate concrete and preparation method thereof, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Phosphate concrete of the present invention, by mass parts, comprises phosphate solution 100 parts, metakaolin 10 ~ 70 parts, adjustable solidification agent 3 ~ 30 parts and defoamer 0.5 ~ 2 part.
Wherein, even more preferably, by mass parts, described phosphate concrete is made up of following component: phosphate solution 100 parts, metakaolin 20 ~ 60 parts, adjustable solidification agent 4 ~ 25 parts and defoamer 0.5 ~ 2 part.Its setting and harden speed of the phosphate concrete of formula rate like this is faster, and early strength is higher.
Further, also add fine aggregate in above-mentioned phosphate concrete, by mass parts, the mass ratio of described fine aggregate and above-mentioned phosphate concrete is 0.5 ~ 2, and described fine aggregate is the inorganic or organic materials that grain diameter is less than 5 millimeters.The fine aggregate that the present invention selects is Chinese cement standard sand, originates in Xiamen Aisiou Standard Sand Co., Ltd, preferably, selects the mass ratio of fine aggregate and above-mentioned phosphate concrete to be 0.5, the inorganic or organic materials that grain diameter is less than 3 millimeters.
Phosphate solution of the present invention is the one or more combination thing in primary ammonium phosphate, aluminium dihydrogen phosphate and aluminium triphosphate, preferably, the one of employing aluminium dihydrogen phosphate and aluminium triphosphate or its composition, as phosphate solution, can improve setting and harden speed and the early strength of phosphate concrete further.
The solid content of phosphate solution of the present invention is 60.0% ~ 80.0%, preferably, phosphate solution solid content is selected to be 60.0% ~ 70.0%, adopt the phosphate solution of this content that it can be made better to mix with metakaolin powder, improve the setting and harden speed of phosphate solution and metakaolin, the early strength of obtained phosphate concrete is also improved significantly.
Inclined kaolin of the present invention is provided by Jiaozuo City Yu Kun mining industry company limited, and metakaolin of the present invention is that kaolin is levigate for powder gained 750 ~ 900 DEG C of temperature lower calcinations 2 ~ 10 hours.Preferably, calcining temperature is selected to be 850 DEG C.
Described phosphate concrete, wherein, described adjustable solidification agent is the one or more combination thing of magnesia, brucite, silicate series cement, aluminate cement and aluminosulfate cement, further, adopt magnesia or brucite as adjustable solidification agent, made phosphate concrete setting and harden speed is faster, and early strength is higher
Defoamer of the present invention is the one in silicone antifoam agent, mineral oil antifoam agent and polyphosphazene polymer ether defoaming agent.After adding defoamer in phosphate slurry mixture, phosphate concrete porosity is declined, and the effect of different types of defoamer froth breaking when identical volume is different, preferably, the present invention selects silicone antifoam agent as defoamer, selects the defoaming effect of this defoamer to phosphate slurry mixture better and then the early strength of phosphate concrete is improved.
Further, the present invention selects higher alcohols defoamer as silicone antifoam agent, preferably, the defoaming activity material of described higher alcohols defoamer is organo-siloxane and hydrophobic silicic aerogels, to improve setting and harden speed and the early strength of phosphate concrete further.
The invention provides a kind of method for the preparation of described phosphate concrete, it comprises step:
S101, phosphate solution is mixed according to mass ratio with metakaolin powder, defoamer, stir and obtain even slurry;
S103, according to mass ratio adjustable solidification agent to be mixed with described even slurry and obtain slurry mixture;
S104, described slurry mixture is injected cast or compression moulding in mould, maintenance under room temperature, or first through room temperature maintenance after 2 hours again through microwave curing, obtain phosphate concrete.
Further, a preferred embodiment of phosphate solution is prepared in step S101 of the present invention:
S201, take phosphoric acid solution, aluminium-hydroxide powder and ultrapure water respectively in mass ratio;
S202, the aluminium-hydroxide powder taken and ultrapure water mixed and stir obtain mixed solution;
S203, pour in mixed solution by the phosphoric acid solution taken, under the condition of 95 ~ 110 DEG C, then react 1 ~ 2h become transparent color to solution, reaction leaves standstill under being placed on normal temperature, after its cooling, just obtain described phosphate solution.
Wherein, the aluminium hydroxide in S201 step and phosphoric acid are chemical reagent, and described phosphoric acid solution concentration is 85%, and the mass ratio of phosphoric acid solution, aluminium-hydroxide powder and ultrapure water is: 100:22.5:40.
Below in conjunction with embodiment, the present invention will be described.In each embodiment, prepare in phosphate solution process, step S203 employing is reacted 1.5h and is become transparent color to solution under the condition of 100 DEG C.
Embodiment 1
Phosphate solution 100 parts, metakaolin 50 parts, adjustable solidification agent 10 parts, defoamer 0.5 part; Described phosphate solution is aluminium dihydrogen phosphate, and its solid content is 65.0%; Adjustable solidification agent is magnesia and ordinary Portland cement (respectively account for 50%, embodiment of the present invention per-cent is all by quality ratio, lower same); Defoamer is silicone antifoam agent.Fine aggregate used is quartz sand, and the mass ratio of fine aggregate and gelling material is 0.5.
Prepare phosphate concrete according to above-mentioned method, build in the three joint-trial moulds being of a size of 3cm × 3cm × 3cm (lower same), the cold setting ultimate compression strength of 7 days is 16.02MPa, and the ultimate compression strength of 28 days is 52.1MPa.
Embodiment 2
Phosphate solution 100 parts, metakaolin 60 parts, adjustable solidification agent 15 parts, defoamer 1 part; Described phosphate solution is the mixture (respectively accounting for 50%) of aluminium dihydrogen phosphate and primary ammonium phosphate, and its solid content is 70.0%; Adjustable solidification agent is brucite and aluminate cement (respectively accounting for 50%); Defoamer is higher alcohols defoamer.Fine aggregate used is quartz sand, and the mass ratio of fine aggregate and gelling material is 0.5.
Prepare gelling material according to above-mentioned method, the cold setting ultimate compression strength of 7 days is 14.04MPa, and the ultimate compression strength of 28 days is 48.5MPa.
Embodiment 3
Phosphate solution 100 parts, metakaolin 40 parts, adjustable solidification agent 20 parts, defoamer 1.5 parts; Described phosphate solution is primary ammonium phosphate, and its solid content is 75.0%; Adjustable solidification agent is magnesia and aluminosulfate cement (respectively accounting for 50%); Defoamer is mineral oil antifoam agent.Fine aggregate used is quartz sand, and the mass ratio of fine aggregate and gelling material is 1.
Prepare gelling material according to above-mentioned method, the cold setting ultimate compression strength of 7 days is 13.12MPa, and the ultimate compression strength of 28 days is 47.6MPa.
Embodiment 4
Phosphate solution 100 parts, metakaolin 30 parts, adjustable solidification agent 5 parts, defoamer 1.5 parts; Described phosphate solution is aluminium triphosphate, and its solid content is 80.0%; Adjustable solidification agent is brucite and aluminosulfate cement (respectively accounting for 50%); Defoamer is polyphosphazene polymer ether defoaming agent.Fine aggregate used is quartz sand, and the mass ratio of fine aggregate and gelling material is 1.5.
Prepare gelling material according to above-mentioned method, first through room temperature maintenance after 2 hours again through 40 DEG C of microwave curing 45min, 7 days ultimate compression strength is 26.5MPa.
Embodiment 5
Phosphate solution 100 parts, metakaolin 25 parts, adjustable solidification agent 4 parts, defoamer 2 parts; Described phosphate solution is the mixture (respectively accounting for 50%) of primary ammonium phosphate and aluminium triphosphate, and its solid content is 60.0%; Adjustable solidification agent is brucite and aluminate acid salt cement (respectively accounting for 50%); Defoamer is polyphosphazene polymer ether defoaming agent.Fine aggregate used is quartz sand, and the mass ratio of fine aggregate and gelling material is 2.
Prepare gelling material according to above-mentioned method, the cold setting ultimate compression strength of 7 days is 12.56MPa, and the ultimate compression strength of 28 days is 46.1MPa.
Embodiment 6
Phosphate solution 100 parts, metakaolin 20 parts, adjustable solidification agent 3 parts, defoamer 0.5 part; Described phosphate solution is the mixture (respectively accounting for 50%) of primary ammonium phosphate and aluminium dihydrogen phosphate, and its solid content is 60.0%; Adjustable solidification agent is brucite and aluminate acid salt cement (respectively accounting for 50%); Defoamer is higher alcohols defoamer.Fine aggregate used is quartz sand, and the mass ratio of fine aggregate and gelling material is 0.5.
Prepare gelling material according to above-mentioned method, first through room temperature maintenance after 2 hours again through 60 DEG C of microwave curing 40min, 7 days ultimate compression strength ultimate compression strength is 25.8MPa.
Embodiment 7
Phosphate solution 100 parts, metakaolin 15 parts, adjustable solidification agent 30 parts, defoamer 1 part; Described phosphate solution is the mixture of primary ammonium phosphate, and its solid content is 75.0%; Adjustable solidification agent is brucite and aluminate acid salt cement (respectively accounting for 50%); Defoamer is higher alcohols defoamer.
Prepare gelling material according to above-mentioned method, the cold setting ultimate compression strength of 7 days is 12.45MPa, and the ultimate compression strength of 28 days is 45.5MPa.
Embodiment 8
Phosphate solution 100 parts, metakaolin 10 parts, adjustable solidification agent 3 parts, defoamer 0.5 part; Described phosphate solution is aluminium dihydrogen phosphate, and its solid content is 70.0%; Adjustable solidification agent is silicate cement and aluminosulfate cement (respectively accounting for 50%); Defoamer is mineral oil antifoam agent.
Prepare gelling material according to above-mentioned method, first through room temperature maintenance after 2 hours again through 90 DEG C of microwave curing 30min, 7 days ultimate compression strength is 31.5MPa.
Embodiment 9
Phosphate solution 100 parts, metakaolin 10 parts, adjustable solidification agent 30 parts, defoamer 2 parts; Described phosphate solution is the mixture (respectively accounting for 50%) of aluminium dihydrogen phosphate and primary ammonium phosphate, and its solid content is 80.0%; Adjustable solidification agent is silicate cement and aluminate cement (respectively accounting for 50%); Defoamer is silicone antifoam agent.
Prepare gelling material according to above-mentioned method, the cold setting ultimate compression strength of 7 days is 12.33MPa, and the ultimate compression strength of 28 days is 45.1MPa.
Embodiment 10
Phosphate solution 100 parts, metakaolin 35 parts, adjustable solidification agent 6 parts, defoamer 2 parts; Described phosphate solution is the mixture (respectively accounting for 33.3%) of primary ammonium phosphate, aluminium dihydrogen phosphate and aluminium triphosphate, and its solid content is 70.0%; Adjustable solidification agent is magnesia and aluminate cement (respectively accounting for 50%); Defoamer is higher alcohols defoamer.Fine aggregate used is quartz sand, and the mass ratio of fine aggregate and gelling material is 0.5.
Prepare gelling material according to above-mentioned method, the cold setting ultimate compression strength of 7 days is 12.30MPa, and the ultimate compression strength of 28 days is 45.0MPa.
Known by the result of above-described embodiment, phosphate concrete condensation of the present invention is very fast with setting time, improves early strength; And phosphate concrete of the present invention can other material cementing, and can be used as base material and prepare fibre composite, or as coated material; Preparation technology of the present invention is simple, equipment investment is few, cost is low.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (9)
1. a phosphate concrete, is characterized in that, by mass parts, its composition comprises phosphate solution 100 parts, metakaolin 10 ~ 70 parts, adjustable solidification agent 3 ~ 30 parts and defoamer 0.5 ~ 2 part.
2. phosphate concrete according to claim 1, is characterized in that, in described phosphate concrete, add fine aggregate, and the mass ratio of described fine aggregate and described phosphate concrete is 0.5 ~ 2.
3. phosphate concrete according to claim 1, is characterized in that, described phosphate solution is the one or more combination thing in primary ammonium phosphate, aluminium dihydrogen phosphate and aluminium triphosphate.
4. phosphate concrete according to claim 1, is characterized in that, the solid content of described phosphate solution is 60.0% ~ 80.0%.
5. phosphate concrete according to claim 1, is characterized in that, described metakaolin is that kaolin is levigate for powder gained 750 ~ 900 DEG C of temperature lower calcinations 2 ~ 10 hours.
6. phosphate concrete according to claim 1, is characterized in that, described adjustable solidification agent is the one or more combination thing of magnesia, brucite, silicate series cement, aluminate cement and aluminosulfate cement.
7. phosphate concrete according to claim 1, is characterized in that, described defoamer is the one in silicone antifoam agent, mineral oil antifoam agent and polyphosphazene polymer ether defoaming agent.
8. phosphate concrete according to claim 7, is characterized in that, described silicone antifoam agent is higher alcohols defoamer, and defoaming activity material is organo-siloxane and hydrophobic silicic aerogels.
9., for the preparation of a method for the phosphate concrete as described in as arbitrary in claim 1 to 8, it comprises step:
A, phosphate solution is mixed according to mass ratio with metakaolin powder, defoamer, stir and obtain even slurry;
B, according to mass ratio adjustable solidification agent to be mixed with described even slurry and obtain slurry mixture;
C, described slurry mixture is injected cast or compression moulding in mould, maintenance 2 ~ 24 hours under room temperature; Or first through room temperature maintenance after 2 hours again through microwave curing, obtain phosphate concrete.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410480512.2A CN104261795A (en) | 2014-09-19 | 2014-09-19 | Phosphate cementing material and preparation method thereof |
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| CN201410480512.2A CN104261795A (en) | 2014-09-19 | 2014-09-19 | Phosphate cementing material and preparation method thereof |
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| CN104261795A true CN104261795A (en) | 2015-01-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777056A (en) * | 2016-01-25 | 2016-07-20 | 美程新材料科技江苏有限公司 | Novel wall material hydroxyl calcium magnesium phosphate rock and preparation method thereof |
| CN114394775A (en) * | 2022-01-20 | 2022-04-26 | 南华大学 | Kaolin-based curing agent and preparation method and application thereof |
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| CN1207087A (en) * | 1995-12-08 | 1999-02-03 | 罗狄亚化学公司 | Novel binding phase for phosphorus-magnesium cements and use thereof |
| JP2012505147A (en) * | 2008-10-07 | 2012-03-01 | グランクリート，インコーポレイテッド | Heat resistant phosphate cement |
| CN102617059A (en) * | 2012-03-23 | 2012-08-01 | 深圳大学 | Phosphate base cementing agent |
| CN103140453A (en) * | 2010-10-21 | 2013-06-05 | 美国石膏公司 | High strength phosphate-based cement having low alkalinity |
| CN103739268A (en) * | 2013-12-13 | 2014-04-23 | 深圳大学 | Fiber composite material reinforced ceramic plate and preparation method thereof |
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2014
- 2014-09-19 CN CN201410480512.2A patent/CN104261795A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1207087A (en) * | 1995-12-08 | 1999-02-03 | 罗狄亚化学公司 | Novel binding phase for phosphorus-magnesium cements and use thereof |
| JP2012505147A (en) * | 2008-10-07 | 2012-03-01 | グランクリート，インコーポレイテッド | Heat resistant phosphate cement |
| CN103140453A (en) * | 2010-10-21 | 2013-06-05 | 美国石膏公司 | High strength phosphate-based cement having low alkalinity |
| CN102617059A (en) * | 2012-03-23 | 2012-08-01 | 深圳大学 | Phosphate base cementing agent |
| CN103739268A (en) * | 2013-12-13 | 2014-04-23 | 深圳大学 | Fiber composite material reinforced ceramic plate and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777056A (en) * | 2016-01-25 | 2016-07-20 | 美程新材料科技江苏有限公司 | Novel wall material hydroxyl calcium magnesium phosphate rock and preparation method thereof |
| CN105777056B (en) * | 2016-01-25 | 2017-10-10 | 美程新材料科技江苏有限公司 | A kind of materials for wall hydroxyl phosphorus magnesium calcium stone and preparation method thereof |
| CN114394775A (en) * | 2022-01-20 | 2022-04-26 | 南华大学 | Kaolin-based curing agent and preparation method and application thereof |
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