CN105503237A - Preparation method of high-strength foamed concrete - Google Patents
Preparation method of high-strength foamed concrete Download PDFInfo
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- CN105503237A CN105503237A CN201510920131.6A CN201510920131A CN105503237A CN 105503237 A CN105503237 A CN 105503237A CN 201510920131 A CN201510920131 A CN 201510920131A CN 105503237 A CN105503237 A CN 105503237A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
Abstract
The invention relates to a preparation method of high-strength foamed concrete and belongs to the technical field of building materials. The preparation method comprises the following steps: firstly, putting waste coal ores into a ball mill and carrying out ball milling; immersing the waste coal ores with hydrochloric acid; then taking out the waste coal ores and drying; uniformly mixing the waste coal ores with clay to prepare mixed powder; after uniformly mixing the mixed powder with substances including cement, coal ash and the like, stirring and mixing the mixture with de-ionized water; after stirring, adding polyacrylamide and stirring; after stirring, adding a foaming agent into the mixture and stirring to obtain the product. The preparation method of the high-strength foamed concrete has the beneficial effects that the prepared concrete has the characteristics of high strength and cracking resistance, and simple preparation steps and low cost are realized.
Description
Technical field
The present invention relates to a kind of preparation method of high strength foamed concrete, belong to building material technical field.
Background technology
Concrete is a kind of material of construction that in civil engineering work, purposes is the widest, consumption is maximum.Foamed concrete is also called foam cement, light weight concrete etc., is that a kind of profit is useless, environmental protection, energy-conservation, cheap and have non-flame properties novel building energy-saving material.Foamed concrete needs the gases such as air or nitrogen, carbon dioxide gas, oxygen to introduce in concrete mortar according to application by the mode of chemistry or physics, shaping through reasonable maintenance, and formed containing tiny in a large number sealed porosity, and there is the concrete product of suitable intensity.
Foamed concrete is a kind of novel energy saving and environment friendly material of construction, Chinese scholars has done a large amount of research and development to it, makes it be widely used in materials for wall, but it also exists certain defect, as low strength, cracking, water suction etc., therefore need the foamed concrete that a kind of intensity is high badly.
Summary of the invention
The technical problem that the present invention mainly solves: not high for current foamed concrete intensity, problem easy to crack, provide and solve this problem by preparing special whipping agent and changing intrinsic composition in concrete, strong concrete prepared by the present invention has cracking resistance, the feature that intensity is high.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention:
(1) the discarded coal ore of 1 ~ 2kg is taken, be placed in after ball mill ball milling becomes 100 ~ 120 object powder, be that the hydrochloric acid of 30% is after 1:1 mixes in mass ratio with massfraction, soak after 1 ~ 2 day, take out, being placed in is that the baking oven of 60 ~ 70 DEG C dries 1 ~ 2h, and mixes with clay, the mixed powder of system;
(2) count by weight, choose 80 ~ 85 parts of cement, 10 ~ 15 parts of flyash, after the mixed powder of 5 ~ 8 parts mixes, be uniformly mixed with the deionized water of cement quality 95% again, control stirring velocity is 100 ~ 120r/min, and the time is 30 ~ 40min, to be mixed complete after, the polyacrylamide of cement quality 1 ~ 2% is added to it, after being uniformly mixed, moving in stirrer and stir, stir 3 ~ 5min;
(3) to be mixed complete after, add whipping agent to it, the amount wherein added and the mass ratio of polyacrylamide are 1:1, stir after 10 ~ 15min, pour into a mould with the rotating speed of 40 ~ 50r/min, and leave standstill 3 ~ 5 days, obtain high strength foamed concrete.
The concrete preparation process of the whipping agent in described step (3) is:
(1) after by sodium cetanesulfonate, 1:1 mixes in mass ratio with ether of cellulose, be placed in reaction vessel, and the ethanol of hexadecyl quality 5 ~ 6% is added to it, be after the reaction 1 ~ 2h of 120 ~ 150 DEG C in temperature, make it naturally cool to room temperature;
(2) be cooled to after room temperature until it, by above-mentioned reaction product and aluminium powder, potassium permanganate is placed in reactor by quality 1:1:100 mixing and carries out high temperature, reaction, control temperature is 200 ~ 300 DEG C, after reaction 40 ~ 50min, after insulation 1 ~ 2h, be cooled to 70 ~ 80 DEG C;
(3) by above-mentioned be cooled to the mixture of 70 ~ 80 DEG C and mass concentration be 30% sodium hydroxide solution be uniformly mixed by quality 1:15, being placed in refrigerating chamber, to be cooled to temperature be 15 ~ 20 DEG C, and filter it, gets filtered liquid and be whipping agent.
The invention has the beneficial effects as follows:
(1) concrete prepared has high strength, the feature of splitting resistance;
(2) preparation process is simple, and cost is low.
Embodiment
First the discarded coal ore of 1 ~ 2kg is taken, be placed in after ball mill ball milling becomes 100 ~ 120 object powder, be that the hydrochloric acid of 30% is after 1:1 mixes in mass ratio with massfraction, soak after 1 ~ 2 day, take out, being placed in is that the baking oven of 60 ~ 70 DEG C dries 1 ~ 2h, and mixes with clay, the mixed powder of system; Count by weight, choose 80 ~ 85 parts of cement, 10 ~ 15 parts of flyash, after the mixed powder of 5 ~ 8 parts mixes, be uniformly mixed with the deionized water of cement quality 95% again, control stirring velocity is 100 ~ 120r/min, and the time is 30 ~ 40min, to be mixed complete after, the polyacrylamide of cement quality 1 ~ 2% is added to it, after being uniformly mixed, moving in stirrer and stir, stir 3 ~ 5min; To be mixed complete after, add whipping agent to it, the amount wherein added and the mass ratio of polyacrylamide are 1:1, stir after 10 ~ 15min, pour into a mould with the rotating speed of 40 ~ 50r/min, and leave standstill 3 ~ 5 days, obtain high strength foamed concrete.Wherein the concrete preparation process of whipping agent is: after first by sodium cetanesulfonate, 1:1 mixes in mass ratio with ether of cellulose, be placed in reaction vessel, and the ethanol of hexadecyl quality 5 ~ 6% is added to it, be after the reaction 1 ~ 2h of 120 ~ 150 DEG C in temperature, make it naturally cool to room temperature; Be cooled to after room temperature until it, by above-mentioned reaction product and aluminium powder, potassium permanganate is placed in reactor by quality 1:1:100 mixing and carries out high temperature, reaction, and control temperature is 200 ~ 300 DEG C, after reaction 40 ~ 50min, after insulation 1 ~ 2h, is cooled to 70 ~ 80 DEG C; By above-mentioned be cooled to the mixture of 70 ~ 80 DEG C and mass concentration be 30% sodium hydroxide solution be uniformly mixed by quality 1:15, being placed in refrigerating chamber, to be cooled to temperature be 15 ~ 20 DEG C, and filter it, gets filtered liquid and be whipping agent.
Example 1
First taking the discarded coal ore of 2kg, be placed in after ball mill ball milling becomes 120 object powder, is that the hydrochloric acid of 30% is after 1:1 mixes in mass ratio with massfraction, soak after 2 days, take out, being placed in is that the baking oven of 70 DEG C dries 2h, and mix with clay, the mixed powder of system; Count by weight, choose 85 parts of cement, 10 parts of flyash, after the mixed powder of 5 parts mixes, be uniformly mixed with the deionized water of cement quality 95% again, control stirring velocity is 120r/min, and the time is 40min, to be mixed complete after, the polyacrylamide of cement quality 2% is added to it, after being uniformly mixed, moving in stirrer and stir, stir 5min; To be mixed complete after, add whipping agent to it, the amount wherein added and the mass ratio of polyacrylamide are 1:1, stir after 15min, pour into a mould with the rotating speed of 50r/min, and leave standstill 5 days, obtain high strength foamed concrete.Wherein the concrete preparation process of whipping agent is: after first by sodium cetanesulfonate, 1:1 mixes in mass ratio with ether of cellulose, be placed in reaction vessel, and the ethanol of hexadecyl quality 6% is added to it, be after the reaction 2h of 150 DEG C in temperature, make it naturally cool to room temperature; Be cooled to after room temperature until it, by above-mentioned reaction product and aluminium powder, potassium permanganate is placed in reactor by quality 1:1:100 mixing and carries out high temperature, reaction, and control temperature is 300 DEG C, after reaction 50min, after insulation 2h, is cooled to 80 DEG C; By above-mentioned be cooled to the mixture of 80 DEG C and mass concentration be 30% sodium hydroxide solution be uniformly mixed by quality 1:15, being placed in refrigerating chamber, to be cooled to temperature be 20 DEG C, and filter it, gets filtered liquid and be whipping agent.Concrete strength prepared by the present invention is higher, has splitting resistance.
Example 2
First taking the discarded coal ore of 1kg, be placed in after ball mill ball milling becomes 100 object powder, is that the hydrochloric acid of 30% is after 1:1 mixes in mass ratio with massfraction, soak after 1 day, take out, being placed in is that the baking oven of 60 DEG C dries 1h, and mix with clay, the mixed powder of system; Count by weight, choose 80 parts of cement, 15 parts of flyash, after the mixed powder of 5 parts mixes, be uniformly mixed with the deionized water of cement quality 95% again, control stirring velocity is 100r/min, and the time is 30min, to be mixed complete after, the polyacrylamide of cement quality 1% is added to it, after being uniformly mixed, moving in stirrer and stir, stir 3min; To be mixed complete after, add whipping agent to it, the amount wherein added and the mass ratio of polyacrylamide are 1:1, stir after 10min, pour into a mould with the rotating speed of 40r/min, and leave standstill 3 days, obtain high strength foamed concrete.Wherein the concrete preparation process of whipping agent is: after first by sodium cetanesulfonate, 1:1 mixes in mass ratio with ether of cellulose, be placed in reaction vessel, and the ethanol of hexadecyl quality 5% is added to it, be after the reaction 1h of 120 DEG C in temperature, make it naturally cool to room temperature; Be cooled to after room temperature until it, by above-mentioned reaction product and aluminium powder, potassium permanganate is placed in reactor by quality 1:1:100 mixing and carries out high temperature, reaction, and control temperature is 200 DEG C, after reaction 40min, after insulation 1h, is cooled to 70 DEG C; By above-mentioned be cooled to the mixture of 80 DEG C and mass concentration be 30% sodium hydroxide solution be uniformly mixed by quality 1:15, being placed in refrigerating chamber, to be cooled to temperature be 20 DEG C, and filter it, gets filtered liquid and be whipping agent.Concrete strength prepared by the present invention is higher, has splitting resistance.
Example 3
First taking the discarded coal ore of 1.5kg, be placed in after ball mill ball milling becomes 110 object powder, is that the hydrochloric acid of 30% is after 1:1 mixes in mass ratio with massfraction, soak after 1 day, take out, being placed in is that the baking oven of 65 DEG C dries 1h, and mix with clay, the mixed powder of system; Count by weight, choose 82 parts of cement, 10 parts of flyash, after the mixed powder of 7 parts mixes, be uniformly mixed with the deionized water of cement quality 95% again, control stirring velocity is 110r/min, and the time is 35min, to be mixed complete after, the polyacrylamide of cement quality 1% is added to it, after being uniformly mixed, moving in stirrer and stir, stir 4min; To be mixed complete after, add whipping agent to it, the amount wherein added and the mass ratio of polyacrylamide are 1:1, stir after 12min, pour into a mould with the rotating speed of 45r/min, and leave standstill 4 days, obtain high strength foamed concrete.Wherein the concrete preparation process of whipping agent is: after first by sodium cetanesulfonate, 1:1 mixes in mass ratio with ether of cellulose, be placed in reaction vessel, and the ethanol of hexadecyl quality 5% is added to it, be after the reaction 1h of 130 DEG C in temperature, make it naturally cool to room temperature; Be cooled to after room temperature until it, by above-mentioned reaction product and aluminium powder, potassium permanganate is placed in reactor by quality 1:1:100 mixing and carries out high temperature, reaction, and control temperature is 250 DEG C, after reaction 45min, after insulation 1h, is cooled to 75 DEG C; By above-mentioned be cooled to the mixture of 75 DEG C and mass concentration be 30% sodium hydroxide solution be uniformly mixed by quality 1:15, being placed in refrigerating chamber, to be cooled to temperature be 17 DEG C, and filter it, gets filtered liquid and be whipping agent.Concrete strength prepared by the present invention is higher, has splitting resistance.
Claims (2)
1. a preparation method for high strength foamed concrete, is characterized in that concrete preparation process is:
(1) the discarded coal ore of 1 ~ 2kg is taken, be placed in after ball mill ball milling becomes 100 ~ 120 object powder, be that the hydrochloric acid of 30% is after 1:1 mixes in mass ratio with massfraction, soak after 1 ~ 2 day, take out, being placed in is that the baking oven of 60 ~ 70 DEG C dries 1 ~ 2h, and mixes with clay, the mixed powder of system;
(2) count by weight, choose 80 ~ 85 parts of cement, 10 ~ 15 parts of flyash, after the mixed powder of 5 ~ 8 parts mixes, be uniformly mixed with the deionized water of cement quality 95% again, control stirring velocity is 100 ~ 120r/min, and the time is 30 ~ 40min, to be mixed complete after, the polyacrylamide of cement quality 1 ~ 2% is added to it, after being uniformly mixed, moving in stirrer and stir, stir 3 ~ 5min;
(3) to be mixed complete after, add whipping agent to it, the amount wherein added and the mass ratio of polyacrylamide are 1:1, stir after 10 ~ 15min, pour into a mould with the rotating speed of 40 ~ 50r/min, and leave standstill 3 ~ 5 days, obtain high strength foamed concrete.
2. the preparation method of a kind of high strength foamed concrete according to claim 1, is characterized in that the concrete preparation process of the whipping agent in described step (3) is:
(1) after by sodium cetanesulfonate, 1:1 mixes in mass ratio with ether of cellulose, be placed in reaction vessel, and the ethanol of hexadecyl quality 5 ~ 6% is added to it, be after the reaction 1 ~ 2h of 120 ~ 150 DEG C in temperature, make it naturally cool to room temperature;
(2) be cooled to after room temperature until it, by above-mentioned reaction product and aluminium powder, potassium permanganate is placed in reactor by quality 1:1:100 mixing and carries out high temperature, reaction, control temperature is 200 ~ 300 DEG C, after reaction 40 ~ 50min, after insulation 1 ~ 2h, be cooled to 70 ~ 80 DEG C;
(3) by above-mentioned be cooled to the mixture of 70 ~ 80 DEG C and mass concentration be 30% sodium hydroxide solution be uniformly mixed by quality 1:15, being placed in refrigerating chamber, to be cooled to temperature be 15 ~ 20 DEG C, and filter it, gets filtered liquid and be whipping agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510920131.6A CN105503237A (en) | 2015-12-12 | 2015-12-12 | Preparation method of high-strength foamed concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510920131.6A CN105503237A (en) | 2015-12-12 | 2015-12-12 | Preparation method of high-strength foamed concrete |
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| CN105503237A true CN105503237A (en) | 2016-04-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033554A (en) * | 2017-05-03 | 2017-08-11 | 苏州轩朗塑料制品有限公司 | The preparation method and applications of high-strength environment-friendly construction material |
| CN107189363A (en) * | 2017-06-06 | 2017-09-22 | 苏州轩朗塑料制品有限公司 | A kind of construction material preparation method and applications added with neoprene |
| CN110815499A (en) * | 2019-11-17 | 2020-02-21 | 江苏柏威建设有限公司 | Concrete pouring method for corridor frame foundation of garden building |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359194A (en) * | 2011-07-05 | 2012-02-22 | 巢启 | Core material and inorganic foaming outer layer compounded heat-insulating section |
| CN103011896A (en) * | 2012-12-21 | 2013-04-03 | 王寿光 | Foam concrete |
-
2015
- 2015-12-12 CN CN201510920131.6A patent/CN105503237A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359194A (en) * | 2011-07-05 | 2012-02-22 | 巢启 | Core material and inorganic foaming outer layer compounded heat-insulating section |
| CN103011896A (en) * | 2012-12-21 | 2013-04-03 | 王寿光 | Foam concrete |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033554A (en) * | 2017-05-03 | 2017-08-11 | 苏州轩朗塑料制品有限公司 | The preparation method and applications of high-strength environment-friendly construction material |
| CN107033554B (en) * | 2017-05-03 | 2019-01-29 | 苏州轩朗塑料制品有限公司 | The preparation method and applications of high-strength environment-friendly construction material |
| CN107189363A (en) * | 2017-06-06 | 2017-09-22 | 苏州轩朗塑料制品有限公司 | A kind of construction material preparation method and applications added with neoprene |
| CN107189363B (en) * | 2017-06-06 | 2019-02-22 | 苏州轩朗塑料制品有限公司 | A kind of construction material preparation method and applications added with neoprene |
| CN110815499A (en) * | 2019-11-17 | 2020-02-21 | 江苏柏威建设有限公司 | Concrete pouring method for corridor frame foundation of garden building |
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Application publication date: 20160420 |