CN104446603A - High-volume coal ash ceramsite foam concrete and preparation method thereof - Google Patents
High-volume coal ash ceramsite foam concrete and preparation method thereof Download PDFInfo
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Abstract
The invention provides a preparation method of high-volume coal ash ceramsite foam concrete. The preparation method of the ceramsite foam concrete comprises the following steps: putting 38%-50% of a binding material, 29%-40% of ceramsite lightweight aggregates, 0.5%-1.5% of an excitant and 0.12%-0.14% of a fiber into a stirrer, and stirring evenly; simultaneously adding 0.04%-0.20% of a foaming agent and foam which is formed by a part of water in a foaming machine and has the particle sizes of 50-1,000mu m, the residual water and 0.09%-0.15% of a water reducer into the stirrer, and stirring with powder evenly to form slurry; adding the foam into the slurry, stirring evenly, and then pouring into a mold to mold; and demolding to prepare the ceramsite foam concrete of which the density is 300-800kg/m<3>. According to the formula provided by the invention, low-cost coal ashes are taken as a main raw material, and the material cost is reduced; meanwhile, the volume-weight of the concrete is reduced by adding the ceramsite lightweight aggregates with different particle sizes; and the mechanical strength and the stability of the concrete are effectively improved.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of flyash in great mixed amount ceramsite foam concrete and preparation method thereof.
Background technology
At present, the common wall thermal insulating lagging material of China mainly includes machine class heat preserving and insulating material and the large class of mineral-type heat preserving and insulating material two, and wherein foamed concrete be a kind of typically mineral-type heat preserving and insulating material.The main application fields of foamed concrete is that building heat preservation is heat insulation, accounts for about 80% of its ultimate production.With market common are machine class lagging material as polystyrene foam plate, the advantages such as phenolic foam board is compared, and it is high that foamed concrete has intensity, long service life, and fire resistance is good.Itself there is the relatively high shortcoming of unit weight in existing foamed concrete, if reduce unit weight, the foamed concrete volume poor stability so produced by the method improving foam volume, intensity is low; And existing foamed concrete is all generally adopt cement and flyash as powder, then by adding water, whipping agent carry out foam formed, the workability had to make slurry, improve the intensity of foamed concrete simultaneously, generally can add many cement, material cost is higher, in addition because ordinary portland cement is long for time of coagulation, the mould turnover time can extend, and also can cause the rising of production cost.The Chinese patent of application number 201210249734.4 discloses a kind of insulating foam preparation method of concrete applying andesite stone flour, in order to solve the higher defect of cement cost in this patent, adopt in powder, add andesite stone flour, although reduce the consumption of cement to a certain extent, but because andesite is a kind of natural crystal, need to be broken into stone flour could use, and flyash is the trade waste of the factories such as power station, itself be powdered granule, use the cost of andesite to compare its cost of flyash still higher.The density ratio of andesite is higher, and its proportion is comparatively large, can not solve the defect that the unit weight of existing foamed concrete itself is relatively high.
Relatively high in order to solve foamed concrete unit weight, the shortcoming of volume stability difference, also there is partial monopoly to adopt and add haydite in the feed, the patent No. of such as applying in China is the patent of invention of 201010294645.2, disclose a kind of Novel foam concrete preparation technology, this concrete uses proportioning to be cement: haydite: flyash 4:3:3 or cement: haydite: flyash 4:2:4 prepares unit dry weight 700-1200kg/m
3foamed concrete.In order to ensure concrete intensity workability, in this patent, cement usage quantity is greater than the consumption of flyash, and the amount ratio of cement is comparatively large, and the problem that its cost unresolved is high.Haydite accounts for the 20%-30% of powder total mass, although reduce concrete proportion to a certain extent, its unit weight is still higher, and the foamed concrete physical strength for preparing of this formula and volume stability all poor, application number be 201310047960.9 Chinese patent disclose a kind of steel tube foam concrete combination column and constructional method, a kind of foamed concrete formula is further disclosed in this patent, its proportioning is cement 28%-32%, haydite 35%-40%, flyash 10%-12%, silicon ash 10%-15%, gypsum 3%-5% prepares foamed concrete, in whole proportioning, flyash accounts for the 18%-24% of gelling material total mass, haydite accounts for the 35%-40% of powder total mass, there is the larger defect of cement usage quantity equally in this patent, simultaneously in order to provide raising concrete strength and weather resistance to the addition of silicon ash, gypsum raw material, silicon ash compares its cost compare of flyash with gypsum high.
In addition, for the foamed concrete mixing flyash in the preparation technology of existing foamed concrete, for ensureing early strength, common way is steam-cured to it, makes technique more loaded down with trivial details; And present stage ceramsite foam concrete moulding process stir as slurry for first gelling material to be added water; foamed concrete slurry is mixed again with foams mix Cheng Xin; last and haydite is mixed into ceramsite foam concrete; in the mixing process of haydite, foam is broken in a large number, is difficult to the ceramsite foam concrete preparing ultra-low-density.
Summary of the invention
The present invention is directed to the technical problem that existing foamed concrete exists, a kind of flyash in great mixed amount ceramsite foam concrete and preparation method thereof is provided, this concrete had both improved the large shortcoming of present stage ceramsite foam concrete cement usage quantity, greatly reduce production cost, and ensure that foamed concrete has higher physical strength and volume stability while lightweight.
Technical scheme provided by the invention is: described a kind of flyash in great mixed amount ceramsite foam concrete, it is characterized in that the density of this foamed concrete is 300-800kg/m
3, be specifically made up of the material of following mass percent:
The summation of above-mentioned all material mass per-cent is 100%; Gelling material in above-mentioned substance is made up of the cement of 30%-50% and the flyash of 50%-70%, and wherein cement can adopt the breeze of equivalent to replace, and breeze substitution amount is the 0%-30% of cement quality; Described haydite light-weight aggregate is that the haydite light-weight aggregate of two kinds of particle diameters of 15-30mm and 1-15mm forms according to 6-7:3-4 proportioning by particle size range, its tap density 200-400kg/m
3, Tong pressure Du≤2MPa; Described water reducer is high-efficiency water-reducing agent of poly-carboxylic acid, solid content 40 ± 2%, pH value 6.5-8.0; Described exciting agent is carbonate accelerating chemicals or aluminate class accelerating chemicals; Described whipping agent is surfactant-based material, comprises anion surfactant, colophony type whipping agent, and protein type whipping agent and compound foaming agent are wherein a kind of; Described fiber is length is 5-20mm; Described water is the tap water meeting the reinforcement of concrete water quality standard.
The further technical scheme of the present invention: described cement is P.O 42.5 and above ordinary Portland cement, described flyash is the above flyash of II level, density 1.8-2.3kg/m
3, granularity 0.5-300 μm, specific surface area 300-500m
2/ kg; Described breeze is S95 level GBFS, density 2.8-2.9kg/m
3, specific surface area 400-450m
2/ kg.
The present invention is technical scheme preferably: when described exciting agent is carbonate accelerating chemicals, selects aluminium carbonate or sodium carbonate; When described exciting agent is aluminate class accelerating chemicals, select sodium aluminate or potassium aluminate.
The present invention is technical scheme preferably: described staple length is 6-15mm.
Another kind of technical scheme provided by the invention is a kind of preparation method of flyash in great mixed amount ceramsite foam concrete, it is characterized in that these preparation method's concrete steps are as follows:
(1) material that following mass percent claims is taken: the gelling material of 38%-50%, the haydite light-weight aggregate of 29%-40%, the carbonate accelerating chemicals of 0.5%-1.5% or aluminate class accelerating chemicals, 0.12%-0.14% length is the fiber of 5-20mm, the polycarboxylate water-reducer of 0.09%-0.15%, the tap water of 18%-21%, the whipping agent of 0.04%-0.20%; Wherein gelling material is made up of the cement of 30%-50% and the flyash of 50%-70%, and cement can adopt the breeze of equivalent to replace, and breeze substitution amount is the 0%-30% of cement quality; Described haydite light-weight aggregate is that the haydite light-weight aggregate of two kinds of particle diameters of 15-30mm and 1-15mm forms according to 6-7:3-4 proportioning by particle diameter, its tap density 200-400kg/m
3, Tong pressure Du≤2MPa; Described whipping agent is anion surfactant, colophony type whipping agent, and protein type whipping agent and compound foaming agent are wherein a kind of; The polypropylene fibre of described fiber to be length be 5-20mm or polyethylene fibre or polyvinyl alcohol fiber or tynex;
(2) fiber of the gelling material of the powder material 38%-50% in step (1), the haydite light-weight aggregate of 29%-40%, the carbonate accelerating chemicals of 0.5%-1.5% or aluminate class accelerating chemicals, 0.12%-0.14% is put into stirrer to stir in advance, stirring velocity is 10-20r/min, and churning time is 1-2min;
(3) be that the whipping agent of 0.04%-0.20% adds in compression foaming machine by mass percent, and add part water and make the foam that particle diameter is 50-1000 μm;
(4) added by the polycarboxylate water-reducer of remaining water and 0.09%-0.15% and continue stirring in the powder that in step (2), premixing is good and become slurry, stirring velocity is 30-40r/min, and churning time is 1-2min;
(5) be uniformly mixed by the foam in the slurry in step (4) and step (3), stirring velocity is 10-20r/min, and churning time is 2min;
(6) after stirring in step (5), be poured into die for molding containing frothy slurry, after the demoulding, obtained density is 300-800kg/m
3flyash in great mixed amount ceramsite foam concrete
Beneficial effect of the present invention:
(1) the present invention is in order to reduce costs, and use flyash in great mixed amount equivalent substitution cement, the volume improving flyash makes it reach the 50%-70% of gelling material total mass, greatly reduces cement consumption, reduces material cost;
(2) the present invention uses haydite light-weight aggregate as gathering materials in foamed concrete, compare as the foamed concrete gathered materials with using sand, can effectively reduce system unit weight, the add-on of haydite light-weight aggregate accounts for powder total mass 40%-50%, and use the haydite of two kinds of size to do grating, make the unit weight of flyash in great mixed amount ceramsite foam concrete drop to 800kg/m
3within, unit weight rank A08 level has the ultimate compression strength of more than 5MPa, and unit weight rank A05 level has the ultimate compression strength of more than 2MPa, while guarantee lightweight, effectively improve physical strength and volume stability;
(3) the present invention improves the early strength of foamed concrete by mixing the exciting agent accounting for gelling material total mass 1.0%-3.0%, striking time was shortened within 2 hours by 3-4 hour, greatly improve all transfer efficients of mould, thus reduce production cost;
(4) add exciting agent when powder mixes in preparation technology of the present invention, use exciting agent class material to improve the early strength of foamed concrete, can not carry out steam-cured, or shorten the steam-cured time, reduce processing step;
(5) preparation technology of the present invention be directly the haydite of powder and two kinds of different-grain diameters is gathered materials be mixed into slurry after add foam again, optimize the moulding process of flyash in great mixed amount ceramsite foam concrete, while proof strength, greatly reduce the density of flyash in great mixed amount ceramsite foam concrete.
Formula provided by the invention with the flyash of low cost for main raw material, doping quantity of fly ash is up to 50%-70%, its incorporation is higher than the incorporation of cement, thus reduction material cost, simultaneously by adding the haydite light-weight aggregate of different-grain diameter, while reduction concrete density, the concrete physical strength of effective raising and stability, the flyash in great mixed amount ceramsite foam concrete 7d ultimate compression strength 5-10MPa of unit weight rank A08 level, the flyash in great mixed amount ceramsite foam concrete 7d ultimate compression strength of unit weight rank A05 level is greater than 2MPa, volume stability is good, mould turnover is fast.
Embodiment
Below in conjunction with embodiment, the present invention is further described.The invention provides a kind of density rating is 300-800kg/m
3flyash in great mixed amount ceramsite foam concrete, this foamed concrete is made up of the material of following mass percent: 38%-50% gelling material, 9%-40% haydite light-weight aggregate, 18%-21% water (employing meets the tap water of concrete requirement), 0.09%-0.15% water reducer, 0.5%-1.5% exciting agent, 0.04%-0.20% whipping agent, 0.12%-0.14% fiber; Described gelling material is made up of the cement of 30%-50% and the flyash of 50%-70%, wherein cement can adopt the breeze of equivalent to replace, breeze substitution amount is the 0%-30% of cement quality, adopts breeze replacement cement further can reduce the usage quantity of cement, thus reduces costs.
In above-mentioned raw materials, described cement is P.O 42.5 and above ordinary Portland cement, and described flyash is the above flyash of II level, density 1.8-2.3kg/m
3, granularity 0.5-300 μm, specific surface area 300-500m
2/ kg; Described breeze is S95 level GBFS, density 2.8-2.9kg/m
3, specific surface area 400-450m
2/ kg; Described haydite light-weight aggregate is that the haydite light-weight aggregate of two kinds of particle diameters of 15-30mm and 1-15mm forms according to 6-7:3-4 proportioning by particle size range, its tap density 200-400kg/m
3, Tong pressure Du≤2MPa; Described water reducer is high-efficiency water-reducing agent of poly-carboxylic acid, solid content 40 ± 2%, pH value 6.5-8.0; Described exciting agent is carbonate accelerating chemicals (such as aluminium carbonate or sodium carbonate) or aluminate class accelerating chemicals (such as sodium aluminate or potassium aluminate); Described whipping agent is surfactant-based material, comprise anion surfactant, colophony type whipping agent, protein type whipping agent and compound foaming agent are wherein a kind of, the sodium lauryl sulphate of such as anionic, middle section builds the colophony type KC-15 whipping agent really produced, middle section builds really product protein type KC-16 whipping agent, compound HTW-1 whipping agent; The polypropylene fibre of described fiber to be length be 5-20mm or polyethylene fibre or polyvinyl alcohol fiber or tynex, should adopt the fiber of length 6-15mm, optimum length is 8-10mm.
Embodiment one: a kind of preparation method of flyash in great mixed amount ceramsite foam concrete, its raw material composition and each constituent mass ratio arrange as follows, P.O 42.5 ordinary Portland cement: II level flyash: haydite light-weight aggregate: water: polycarboxylate water-reducer: aluminium carbonate: the polypropylene fibre=190:210:300:180:0.9:5:1.7:1.2 of the KC-16 whipping agent of protein type: length 8mm, described haydite light-weight aggregate uses large, the haydite of little two kinds of particle diameters carries out composite, the particle diameter of Large stone haydite is 20-28mm, the particle diameter of small particle size haydite is 8-15mm, both mass ratioes are 180:120.
The concrete forming step of above-mentioned foamed concrete is as follows:
(1) polypropylene fibre of P.O 42.5 ordinary Portland cement taken according to aforementioned proportion, II level flyash, haydite light-weight aggregate, aluminium carbonate, length 8mm is added in stirrer stir in advance, stirring velocity is 17r/min, and churning time is 1min;
(2) section in whole being built the model of really producing is that the protein type whipping agent of KC-16 adds in compression foaming machine, whipping agent in mass ratio: after water=1:20 adds water, obtained uniform and stable foam, and foam median size is about 400 μm;
(3) remaining water after preparing foam and whole polycarboxylate water-reducers are added in the powder that in step (1), premixing is good to stir and become slurry, stirring velocity is 33r/min, and churning time is 2min;
(4) added in the obtained slurry of step (3) by the foam that step (2) is obtained, mix, stirring velocity is 17r/min, and churning time is 2min;
(5) die for molding will be poured into containing frothy slurry, obtained foamed concrete after the demoulding.
The flyash in great mixed amount ceramsite foam concrete unit dry weight 678kg/m of preparation in embodiment one
3, 7 days intensity R
7d=5.3MPa, thermal conductivity 0.14W/ (mk).
Embodiment two:
A kind of preparation method of flyash in great mixed amount ceramsite foam concrete, its raw material composition and each constituent mass ratio arrange as follows, P.O 42.5 ordinary Portland cement: II level flyash: haydite light-weight aggregate: tap water: polycarboxylate water-reducer: sodium aluminate: the KC-15 whipping agent of colophony type: length is the polyethylene fibre=215:215:290:170:1.3:13:0.4:1.2 of 10mm.Described haydite light-weight aggregate uses the haydite of large and small two kinds of particle diameters to carry out composite, and the particle diameter of Large stone haydite is 15-20mm, and the particle diameter of small particle size haydite is 3-10mm, and both mass ratioes are 200:90.
The concrete forming step of above-mentioned foamed concrete is as follows:
(1) be that the polyethylene fibre of 10mm adds in stirrer and stirs in advance by P.O 42.5 ordinary Portland cement taken according to aforementioned proportion, II level flyash, haydite light-weight aggregate, sodium aluminate, length, stirring velocity is 17r/min, and churning time is 1min;
(2) section in whole being built the model of really producing is that the colophony type whipping agent of KC-15 adds in compression foaming machine, whipping agent in mass ratio: after water=1:40 adds water, obtained uniform and stable foam, and foam median size is about 600 μm;
(3) remaining water after preparing foam and whole polycarboxylate water-reducers are added in the powder that in step (1), premixing is good to stir and become slurry, stirring velocity is 33r/min, and churning time is 2min;
(4) added in the obtained slurry of step (3) by the foam that step (2) is obtained, mix, stirring velocity is 17r/min, and churning time is 2min;
(5) die for molding will be poured into containing frothy slurry, obtained foamed concrete after the demoulding.
The flyash in great mixed amount ceramsite foam concrete unit dry weight 700kg/m of preparation in embodiment two
3, 7 days intensity R
7d=5.8MPa, thermal conductivity 0.15W/ (mk).
Embodiment three
A kind of preparation method of flyash in great mixed amount ceramsite foam concrete; its raw material composition and each constituent mass compare as follows, P.O 42.5 ordinary Portland cement: II level flyash: S95 level GBFS: haydite light-weight aggregate: water: polycarboxylate water-reducer: sodium aluminate: protein type whipping agent: length is 6-9mm polyvinyl alcohol fiber=180:220:30:290:170:1.3:13:1.7:1.2.Described haydite light-weight aggregate uses the haydite of large and small two kinds of particle diameters to carry out composite, and the median size of Large stone haydite is 22-26mm, and the median size of small particle size haydite is 8-11mm, and both mass ratioes are 190:100; Described water is the tap water meeting the reinforcement of concrete water quality standard, the common proteins type whipping agent that described protein type whipping agent can adopt market to sell.
The concrete forming step of above-mentioned foamed concrete is as follows:
(1) be that 6-9mm polyvinyl alcohol fiber adds in stirrer and stirs in advance by P.O 42.5 ordinary Portland cement taken according to aforementioned proportion, II level flyash, S95 level GBFS, haydite light-weight aggregate, sodium aluminate, length, stirring velocity is 17r/min, and churning time is 1min;
(2) added by whole protein whipping agents in compression foaming machine, protein composite foamable agent in mass ratio: after water=1:20 adds water, obtained uniform and stable foam, foam median size is about 400 μm;
(3) remaining water after preparing foam and whole polycarboxylate water-reducers are added in the powder that in step (1), premixing is good to stir and become slurry, stirring velocity is 33r/min, and churning time is 2min;
(4) added in the obtained slurry of step (3) by the foam that step (2) is obtained, mix, stirring velocity is 17r/min, and churning time is 2min;
(5) die for molding will be poured into containing frothy slurry, obtained foamed concrete after the demoulding.
The foamed concrete unit dry weight 747kg/m that embodiment three is obtained
3, 7 days intensity R
7d=6.0MPa, thermal conductivity 0.15W/ (mk).
Embodiment four:
A kind of preparation method of flyash in great mixed amount ceramsite foam concrete, its raw material composition and each constituent mass compare as follows, P.O 42.5 ordinary Portland cement: II level flyash: haydite light-weight aggregate: tap water: polycarboxylate water-reducer: sodium carbonate: HTW-1 type composite foamable agent: length is the polypropylene fibre=140:210:350:170:1.1:7:0.4:1.2 of 8mm.Described haydite light-weight aggregate uses the haydite of large and small two kinds of particle diameters to carry out composite, and the median size of Large stone haydite is 18-25mm, and the median size of small particle size haydite is 4-10mm, and both mass ratioes are 245:105;
The concrete forming step of above-mentioned foamed concrete is as follows:
(1) be that the polypropylene fibre of 8mm adds in stirrer and stirs in advance by P.O 42.5 ordinary Portland cement taken according to aforementioned proportion, II level flyash, haydite light-weight aggregate, sodium carbonate, length, stirring velocity is 17r/min, and churning time is 1min.
(2) be that the composite foamable agent of HTW-1 adds in compression foaming machine by whole model, HTW-1 type composite foamable agent in mass ratio: after water=1:40 adds water, obtained uniform and stable foam, foam median size is about 600 μm;
(3) remaining water after preparing foam and whole polycarboxylate water-reducers are added in the powder that in step (1), premixing is good to stir and become slurry, stirring velocity is 33r/min, and churning time is 2min;
(4) added in the obtained slurry of step (3) by the foam that step (2) is obtained, mix, stirring velocity is 17r/min, and churning time is 2min;
(5) die for molding will be poured into containing frothy slurry, obtained foamed concrete after the demoulding.
The foamed concrete unit dry weight 437kg/m that embodiment four is obtained
3, 7 days intensity R
7d=2.3MPa, thermal conductivity 0.10W/ (mk).
Embodiment five
A kind of preparation method of flyash in great mixed amount ceramsite foam concrete; its raw material composition and each constituent mass compare as follows, P.O 42.5 ordinary Portland cement: II level flyash: S95 level GBFS: haydite light-weight aggregate: water: polycarboxylate water-reducer: potassium aluminate: the KC-16 whipping agent of protein type: length is the tynex=110:220:20:350:170:1.1:7:1.7:1.2 of 6-8mm.Described haydite light-weight aggregate uses the haydite of large and small two kinds of particle diameters to carry out composite, and the particle diameter of Large stone haydite is 20-26mm, and the median size of small particle size haydite is 7-12mm, and both mass ratioes are 210:140.
The concrete forming step of above-mentioned foamed concrete is as follows:
(1) be that the tynex of 6-8mm adds in stirrer and stirs in advance by P.O 42.5 ordinary Portland cement taken according to aforementioned proportion, II level flyash, S95 level GBFS, haydite light-weight aggregate, potassium aluminate, length, stirring velocity is 17r/min, and churning time is 1min;
(2) be that the protein type whipping agent of KC-16 adds in compression whipping agent by all building the model of really producing by middle section, the KC-16 whipping agent of protein type in mass ratio: after water=1:20 adds water, obtained uniform and stable foam, foam median size is about 400 μm;
(3) remaining water after preparing foam and whole polycarboxylate water-reducer are added in the powder that in step (1), premixing is good to stir and become slurry, stirring velocity is 33r/min, and churning time is 2min;
(4) added in the obtained slurry of step (3) by the foam that step (2) is obtained, mix, stirring velocity is 17r/min, and churning time is 2min;
(5) die for molding will be poured into containing frothy slurry, obtained foamed concrete after the demoulding.
The foamed concrete unit dry weight 472kg/m that embodiment five is obtained
3, 7 days intensity R
7d=2.6MPa, thermal conductivity 0.10W/ (mk).
Claims (6)
1. a flyash in great mixed amount ceramsite foam concrete, is characterized in that the density rating of this foamed concrete is 300-800kg/m
3, be specifically made up of the material of following mass percent:
Described gelling material is made up of the cement of 30%-50% and the flyash of 50%-70%, and wherein cement can adopt the breeze of equivalent to replace, and breeze substitution amount is the 0%-30% of cement quality;
Described haydite light-weight aggregate is that the haydite light-weight aggregate of two kinds of particle diameters of 15-30mm and 1-15mm forms according to 6-7:3-4 proportioning by particle size range, its tap density 200-400kg/m
3, Tong pressure Du≤2MPa;
Described water reducer is polycarboxylate water-reducer, solid content 40 ± 2%, pH value 6.5-8.0;
Described exciting agent is carbonate accelerating chemicals or aluminate class accelerating chemicals;
Described whipping agent is surfactant-based material, comprises anion surfactant, colophony type whipping agent, and protein type whipping agent and compound foaming agent are wherein a kind of;
The polypropylene fibre of described fiber to be length be 5-20mm or polyethylene fibre or polyvinyl alcohol fiber or tynex.
2. a kind of flyash in great mixed amount ceramsite foam concrete according to claim 1, is characterized in that: described cement is P.O 42.5 and above ordinary Portland cement, and described flyash is the above flyash of II level, density 1.8-2.3kg/m
3, granularity 0.5-300 μm, specific surface area 300-500m
2/ kg; Described breeze is S95 level GBFS, density 2.8-2.9kg/m
3, specific surface area 400-450m
2/ kg.
3. a kind of flyash in great mixed amount ceramsite foam concrete according to claim 1 and 2, is characterized in that: when described exciting agent is carbonate accelerating chemicals, selects aluminium carbonate or sodium carbonate; When described exciting agent is aluminate class accelerating chemicals, select sodium aluminate or potassium aluminate.
4. a kind of flyash in great mixed amount ceramsite foam concrete according to claim 1 and 2, is characterized in that: described water is the tap water meeting the reinforcement of concrete water quality standard.
5. a kind of flyash in great mixed amount ceramsite foam concrete according to claim 1 and 2, is characterized in that: described staple length is 6-15mm.
6. a preparation method for flyash in great mixed amount ceramsite foam concrete, is characterized in that these preparation method's concrete steps are as follows:
(1) material that following mass percent claims is taken: the gelling material of 38%-50%, the haydite light-weight aggregate of 29%-40%, the carbonate accelerating chemicals of 0.5%-1.5% or aluminate class accelerating chemicals, the fiber of 0.12%-0.14%, the polycarboxylate water-reducer of 0.09%-0.15%, the tap water of 18%-21%, the whipping agent of 0.04%-0.20%; Wherein gelling material is made up of the cement of 30%-50% and the flyash of 50%-70%, and cement can adopt the breeze of equivalent to replace, and breeze substitution amount is the 0%-30% of cement quality; Described haydite light-weight aggregate is that the haydite light-weight aggregate of two kinds of particle diameters of 15-30mm and 1-15mm forms according to 6-7:3-4 proportioning by particle diameter, its tap density 200-400kg/m
3, Tong pressure Du≤2MPa; Described whipping agent is anion surfactant, colophony type whipping agent, and protein type whipping agent and compound foaming agent are wherein a kind of; The polypropylene fibre of described fiber to be length be 5-20mm or polyethylene fibre or polyvinyl alcohol fiber or tynex;
(2) fiber of the gelling material of the powder material 38%-50% in step (1), the haydite light-weight aggregate of 29%-40%, the carbonate accelerating chemicals of 0.5%-1.5% or aluminate class accelerating chemicals, 0.12%-0.14% is put into stirrer to stir in advance, stirring velocity is 10-20r/min, and churning time is 1-2min;
(3) be that the whipping agent of 0.04%-0.20% adds in compression foaming machine by mass percent, and add part water and make the foam that particle diameter is 50-1000 μm;
(4) added by the polycarboxylate water-reducer of remaining water and 0.09%-0.15% and continue stirring in the powder that in step (2), premixing is good and become slurry, stirring velocity is 30-40r/min, and churning time is 1-2min;
(5) be uniformly mixed by the foam in the slurry in step (4) and step (3), stirring velocity is 10-20r/min, and churning time is 2min;
(6) after stirring in step (5), be poured into die for molding containing frothy slurry, after the demoulding, obtained density is 300-800kg/m
3ceramsite foam concrete.
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| CN104975676A (en) * | 2015-07-02 | 2015-10-14 | 安徽省中坤元新型建材有限公司 | Lightweight high-strength composite partition batten, and production method thereof |
| CN104987005A (en) * | 2015-06-12 | 2015-10-21 | 中民筑友有限公司 | Air-added ceramsite concrete and preparation method thereof |
| CN105110726A (en) * | 2015-07-27 | 2015-12-02 | 浙江方远建材科技有限公司 | Early-strength ceramsite aerated concrete block and preparation method therefor |
| CN106380225A (en) * | 2016-08-31 | 2017-02-08 | 中国建筑材料科学研究总院 | Alkali-activated foam concrete and preparation method thereof |
| CN106431139A (en) * | 2016-09-22 | 2017-02-22 | 四川亨利德新型建筑材料有限公司 | Planar laid ceramsite concrete thermal baffle and preparation method thereof |
| CN106830821A (en) * | 2017-01-11 | 2017-06-13 | 上海理工大学 | A kind of fibre-reinforced superhigh tenacity cement-base composite materials of PE and preparation method thereof |
| CN107200530A (en) * | 2017-05-27 | 2017-09-26 | 苏州混凝土水泥制品研究院检测中心有限公司 | A kind of preparation method of Phasochange energy storage ceramic particle and its application in fiber concrete structure |
| CN108395274A (en) * | 2018-05-02 | 2018-08-14 | 宁波普利凯建筑科技有限公司 | A kind of light high-strength haydite foam concrete and preparation method thereof |
| CN108585939A (en) * | 2018-04-03 | 2018-09-28 | 中国矿业大学 | A kind of formula and preparation method of Novel foam concrete |
| CN109320189A (en) * | 2018-11-22 | 2019-02-12 | 张俊华 | A kind of foamed concrete and preparation method thereof |
| CN109942244A (en) * | 2017-12-21 | 2019-06-28 | 兴业县银基混凝土有限公司 | A kind of foam concrete |
| CN110452016A (en) * | 2019-09-05 | 2019-11-15 | 许言言 | Assembled hollow floor core model filler material, preparation method and assembled hollow floor |
| CN110712270A (en) * | 2019-10-20 | 2020-01-21 | 江龙 | Production process of foam concrete prefabricated part |
| CN110734256A (en) * | 2019-11-15 | 2020-01-31 | 扬州大学 | foam concrete doped with recycled brick powder and preparation method thereof |
| CN111362608A (en) * | 2020-03-18 | 2020-07-03 | 北京市燕通建筑构件有限公司 | Solid waste non-sintered ceramsite and preparation method thereof, foam concrete and light partition board |
| CN112025918A (en) * | 2020-09-06 | 2020-12-04 | 江龙 | Foam concrete preparation method |
| CN112060282A (en) * | 2020-09-06 | 2020-12-11 | 江龙 | Preparation method of foam concrete |
| CN112919924A (en) * | 2021-04-12 | 2021-06-08 | 陈长国 | High-strength lightweight concrete and preparation method thereof |
| CN113716920A (en) * | 2021-10-20 | 2021-11-30 | 福建农林大学 | Foam concrete wall material with industrial waste replacing cement in large proportion |
| CN113929389A (en) * | 2021-10-25 | 2022-01-14 | 杭州瑞鼎建材有限公司 | High-strength lightweight concrete and preparation method thereof |
| CN115108769A (en) * | 2022-07-29 | 2022-09-27 | 烟台大学 | High-performance mixed alkali-shock foam concrete and preparation method thereof |
| CN115368164A (en) * | 2022-08-31 | 2022-11-22 | 山东鲁碧绿色建筑科技有限公司 | Preparation method of porous concrete for external wall panel |
| CN116063032A (en) * | 2022-12-13 | 2023-05-05 | 万卓（武汉）新材料有限公司 | Ultralight board and preparation method thereof |
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| CN102490247A (en) * | 2011-12-12 | 2012-06-13 | 马鞍山科诺墙体材料制造有限公司 | Method for preparing self-thermal-insulation concrete building block |
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| CN104987005A (en) * | 2015-06-12 | 2015-10-21 | 中民筑友有限公司 | Air-added ceramsite concrete and preparation method thereof |
| CN104975676A (en) * | 2015-07-02 | 2015-10-14 | 安徽省中坤元新型建材有限公司 | Lightweight high-strength composite partition batten, and production method thereof |
| CN105110726A (en) * | 2015-07-27 | 2015-12-02 | 浙江方远建材科技有限公司 | Early-strength ceramsite aerated concrete block and preparation method therefor |
| CN106380225A (en) * | 2016-08-31 | 2017-02-08 | 中国建筑材料科学研究总院 | Alkali-activated foam concrete and preparation method thereof |
| CN106431139A (en) * | 2016-09-22 | 2017-02-22 | 四川亨利德新型建筑材料有限公司 | Planar laid ceramsite concrete thermal baffle and preparation method thereof |
| CN106830821A (en) * | 2017-01-11 | 2017-06-13 | 上海理工大学 | A kind of fibre-reinforced superhigh tenacity cement-base composite materials of PE and preparation method thereof |
| CN107200530A (en) * | 2017-05-27 | 2017-09-26 | 苏州混凝土水泥制品研究院检测中心有限公司 | A kind of preparation method of Phasochange energy storage ceramic particle and its application in fiber concrete structure |
| CN109942244A (en) * | 2017-12-21 | 2019-06-28 | 兴业县银基混凝土有限公司 | A kind of foam concrete |
| CN108585939A (en) * | 2018-04-03 | 2018-09-28 | 中国矿业大学 | A kind of formula and preparation method of Novel foam concrete |
| CN108395274A (en) * | 2018-05-02 | 2018-08-14 | 宁波普利凯建筑科技有限公司 | A kind of light high-strength haydite foam concrete and preparation method thereof |
| CN109320189A (en) * | 2018-11-22 | 2019-02-12 | 张俊华 | A kind of foamed concrete and preparation method thereof |
| CN110452016A (en) * | 2019-09-05 | 2019-11-15 | 许言言 | Assembled hollow floor core model filler material, preparation method and assembled hollow floor |
| CN110712270A (en) * | 2019-10-20 | 2020-01-21 | 江龙 | Production process of foam concrete prefabricated part |
| CN110734256A (en) * | 2019-11-15 | 2020-01-31 | 扬州大学 | foam concrete doped with recycled brick powder and preparation method thereof |
| CN111362608A (en) * | 2020-03-18 | 2020-07-03 | 北京市燕通建筑构件有限公司 | Solid waste non-sintered ceramsite and preparation method thereof, foam concrete and light partition board |
| CN112025918A (en) * | 2020-09-06 | 2020-12-04 | 江龙 | Foam concrete preparation method |
| CN112060282A (en) * | 2020-09-06 | 2020-12-11 | 江龙 | Preparation method of foam concrete |
| CN112919924B (en) * | 2021-04-12 | 2022-12-16 | 毕节市通发电力电杆有限公司 | High-strength lightweight concrete and preparation method thereof |
| CN112919924A (en) * | 2021-04-12 | 2021-06-08 | 陈长国 | High-strength lightweight concrete and preparation method thereof |
| CN113716920A (en) * | 2021-10-20 | 2021-11-30 | 福建农林大学 | Foam concrete wall material with industrial waste replacing cement in large proportion |
| CN113929389A (en) * | 2021-10-25 | 2022-01-14 | 杭州瑞鼎建材有限公司 | High-strength lightweight concrete and preparation method thereof |
| CN113929389B (en) * | 2021-10-25 | 2022-08-12 | 杭州瑞鼎建材有限公司 | High-strength lightweight concrete and preparation method thereof |
| CN115108769A (en) * | 2022-07-29 | 2022-09-27 | 烟台大学 | High-performance mixed alkali-shock foam concrete and preparation method thereof |
| CN115368164A (en) * | 2022-08-31 | 2022-11-22 | 山东鲁碧绿色建筑科技有限公司 | Preparation method of porous concrete for external wall panel |
| CN115368164B (en) * | 2022-08-31 | 2023-06-06 | 山东鲁碧绿色建筑科技有限公司 | Preparation method of porous concrete for external wall panel |
| CN116063032A (en) * | 2022-12-13 | 2023-05-05 | 万卓（武汉）新材料有限公司 | Ultralight board and preparation method thereof |
| CN117185729A (en) * | 2023-09-27 | 2023-12-08 | 烟台三力轻质混凝土科技有限公司 | Manufacturing method of lightweight concrete partition plate |
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