CN104193217B - A kind of low porosity high frost resistance gelling agent and preparation method thereof - Google Patents
A kind of low porosity high frost resistance gelling agent and preparation method thereof Download PDFInfo
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- CN104193217B CN104193217B CN201410402945.6A CN201410402945A CN104193217B CN 104193217 B CN104193217 B CN 104193217B CN 201410402945 A CN201410402945 A CN 201410402945A CN 104193217 B CN104193217 B CN 104193217B
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Abstract
A kind of low porosity high frost resistance gelling agent, in weight portion, comprise following component: 1 ~ 3 part of 2 ~ 4 parts of 42 ~ 48 parts of ultrafine slag powders, 24 ~ 30 parts of silicon powders, 10 ~ 15 parts of swelling agents, 4 ~ 10 parts of composite water-reducing agents, 2 ~ 5 parts of compound retarders, 2 ~ 3 parts of short steel fibres, 1 ~ 3 part of heavy calcium carbonate, microcrystalline cellulose and dioctylis sulfosuccinas natricus; Polycarboxylate water-reducer and aliphatic water reducing agent that described composite water-reducing agent is 1 ~ 4:1 by weight ratio form; Gluconic acid sodium salt and calgon that described compound retarder is 1 ~ 4:1 by weight ratio form. Low porosity high frost resistance gelling agent of the present invention has compared with low porosity, and aperture is little, is the gelling agent of a kind of superhigh intensity, high-durability and good volume stability.
Description
Technical field
The present invention relates to building materials field, be specifically related to a kind of low porosity high frost resistance gelling agent and preparation method thereof.
Background technology
The fast development of building industry, also makes rapid progress the development of gelling agent, the performance of gelling agent has been proposed simultaneouslyHigher requirement. The compression strength that will improve the adding of gel rubber material concrete material itself is little, ductility is poor, in tension or punchingHit under load action the defects such as brittle break easily occur, use common gelling agent to be difficult to meet comprehensively wanting of concrete materialAsk, therefore prepare the gelling agent of high target requirement to adapt to the fast development of building industry.
Concrete gelling agent improves mainly for concrete a certain performance indications at present, for example, improve concreteIntensity, improve impermeability, improve freezing tolerance, improve durability or reduce concrete cracking, but can not be simultaneously to mixedOther performances of solidifying soil are improved, and therefore, the gelling agent that the combination properties such as high strength, high-durability, anti-permeation cracking-resistant are high needsFurther research.
Summary of the invention
The object of this invention is to provide a kind of low porosity high frost resistance gelling agent and preparation method thereof, to solve existing skillThe deficiency of art.
The present invention for achieving the above object, is achieved through the following technical solutions: a kind of low porosity high frost resistance gelling agent,In weight portion, comprise following component: 42 ~ 48 parts of ultrafine slag powders, 24 ~ 30 parts of silicon powders, 10 ~ 15 parts of swelling agents, compound subtracting2 ~ 4 parts, 4 ~ 10 parts, aqua, 2 ~ 5 parts of compound retarders, 2 ~ 3 parts of short steel fibres, 1 ~ 3 part of heavy calcium carbonate, microcrystalline cellulose and1 ~ 3 part of dioctylis sulfosuccinas natricus; The polycarboxylate water-reducer that described composite water-reducing agent is 1 ~ 4:1 by weight ratio and aliphaticWater reducer composition; Gluconic acid sodium salt and calgon that described compound retarder is 1 ~ 4:1 by weight ratio form.
For further realizing object of the present invention, can also be by the following technical solutions: preferred a kind of low porosity is highFrost resistance gelling agent, in weight portion, also comprises following component: 1 ~ 4 part of 3 ~ 5 parts of medical stone powders and industrial starch.
Preferred a kind of low porosity high frost resistance gelling agent, in weight portion, consists of the following composition: ultrafine slag powderThe compound shrink of the aliphatic water reducing agent composition of 45 parts, 25 parts of silicon powders, 13 parts, 4 parts polycarboxylate water-reducers of swelling agent and 1 part3 parts of compound retarder, short steel fibres, the heavy calcium carbonate 2 of the calgon composition of agent, the gluconic acid sodium salt of 3 parts and 1 part3 parts of part, 3 parts of microcrystalline celluloses, 2 parts of dioctylis sulfosuccinas natricuses, 4 parts of medical stone powders and industrial starch.
The average grain diameter of further preferred ultrafine slag powder is 0.5 ~ 3 μ m, and swelling agent is UEA-6 type swelling agent, short steelThe diameter of fiber is 0.1 ~ 0.2mm, and length is 2 ~ 8mm.
The preparation method who the invention still further relates to a kind of low porosity high frost resistance gelling agent, step is as follows:
(1) composite water-reducing agent and the grape of the polycarboxylate water-reducer that is 1 ~ 4:1 by weight ratio and aliphatic water reducing agent compositionThe compound retarder of sodium saccharate and calgon composition mixes, and obtains compound a, the quality of described composite water-reducing agentMark is 4 ~ 10 parts, and the mass fraction of compound retarder is 2 ~ 5 parts;
(2) by the ultrafine slag powder of 42 ~ 48 parts of mass fractions, the silicon powder of 24 ~ 30 parts, the swelling agent, 2 ~ 3 of 10 ~ 15 partsThe short steel fibre of part and the heavy calcium carbonate of 1 ~ 3 part mix, and obtain compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
The preparation method who the invention still further relates to a kind of low porosity high frost resistance gelling agent, step is as follows:
(1) composite water-reducing agent and the grape of the polycarboxylate water-reducer that is 1 ~ 4:1 by weight ratio and aliphatic water reducing agent compositionThe compound retarder of sodium saccharate and calgon composition mixes, and obtains compound a, the quality of described composite water-reducing agentMark is 4 ~ 10 parts, and the mass fraction of compound retarder is 2 ~ 5 parts;
(2) by the ultrafine slag powder of 42 ~ 48 parts of mass fractions, the silicon powder of 24 ~ 30 parts, the swelling agent, 2 ~ 3 of 10 ~ 15 partsPart short steel fibre, 1 ~ 3 part heavy calcium carbonate, 2 ~ 4 parts microcrystalline cellulose, 1 ~ 3 part dioctylis sulfosuccinas natricus,The industrial starch of the medical stone powder of 3 ~ 5 parts and 1 ~ 4 part mixes, and obtains compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
The preparation method who the invention still further relates to a kind of low porosity high frost resistance gelling agent, step is as follows:
(1) by the composite water-reducing agent and 3 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 4 parts of mass fractions and 1 partThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the ultrafine slag powder of 45 parts of mass fractions, the silicon powder of 25 parts, the swelling agent of 13 parts, the short steel fibre of 3 partsDimension, the heavy calcium carbonate of 2 parts, the microcrystalline cellulose of 3 parts, the dioctylis sulfosuccinas natricus of 2 parts, the medical stone powder and 3 of 4 partsThe industrial starch of part mixes, and obtains compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
The preparation method of the preferred a kind of low porosity high frost resistance gelling agent of the present invention, the average grain diameter of ultrafine slag powderBe 0.5 ~ 3 μ m, swelling agent is UEA-6 type swelling agent, and the diameter of short steel fibre is 0.1 ~ 0.2mm, and length is 2 ~ 8mm.
Low porosity high frost resistance gelling agent of the present invention has compared with low porosity, and aperture is little, is that a kind of superelevation is strongThe gelling agent of degree, high-durability and good volume stability; Coagulation material of the present invention and cement mixing are obtained to concrete materialExpect, can improve the morphology of concrete particle, improve homogeneity, increase concrete micro-pore, make in concretePortion's structure is closely knit, not easy to crack, and the micro hole increasing can effectively cushion freeze-thaw damage stress, improves concrete hole knotStructure, improves concrete Frost Resistance and cracking resistance, greatly improves concrete durability, and can make concrete anti-Compressive Strength is all more than 320MPa.
Low porosity high frost resistance gelling agent of the present invention is applied widely, be applicable in various geomorphological environments, oil,The engineerings such as nuclear power, municipal administration, ocean, and have broad application prospects in the special engineerings such as military installations and storage nuclear vessel.
Brief description of the drawings
Under identical multiplication factor, Fig. 1 is the concrete morphology of blank group, and Fig. 2 is for adding glue of the present inventionThe concrete microstructure pattern of solidifying agent, can be found out by Fig. 1 and Fig. 2 contrast, adds low porosity high frost resistance of the present inventionAfter gelling agent, there is significant change in concrete microstructure, and the homogeneity of concrete particle is obviously improved.
Detailed description of the invention
A kind of low porosity high frost resistance gelling agent, in weight portion, comprises following component: 42 ~ 48 parts of ultrafine slag powders,24 ~ 30 parts of silicon powders, 10 ~ 15 parts of swelling agents, 4 ~ 10 parts of composite water-reducing agents, 2 ~ 5 parts of compound retarders, 2 ~ 3 parts of short steel fibres, heavy1 ~ 3 part of 2 ~ 4 parts of 1 ~ 3 part of matter Paris whites, microcrystalline cellulose and dioctylis sulfosuccinas natricus; Described composite water-reducing agent is by heavyAmount is than the polycarboxylate water-reducer and the aliphatic water reducing agent composition that are 1 ~ 4:1; Described compound retarder is 1 ~ 4:1 by weight ratioGluconic acid sodium salt and calgon composition.
For further realizing object of the present invention, can also be by the following technical solutions: preferred a kind of low porosity is highFrost resistance gelling agent, in weight portion, also comprises following component: 1 ~ 4 part of 3 ~ 5 parts of medical stone powders and industrial starch, medical stone powderWith adding of industrial starch, can effectively improve the workability in work progress.
Preferred a kind of low porosity high frost resistance gelling agent, in weight portion, consists of the following composition: ultrafine slag powderThe compound shrink of the aliphatic water reducing agent composition of 45 parts, 25 parts of silicon powders, 13 parts, 4 parts polycarboxylate water-reducers of swelling agent and 1 part3 parts of compound retarder, short steel fibres, the heavy calcium carbonate 2 of the calgon composition of agent, the gluconic acid sodium salt of 3 parts and 1 part3 parts of part, 3 parts of microcrystalline celluloses, 2 parts of dioctylis sulfosuccinas natricuses, 4 parts of medical stone powders and industrial starch.
The average grain diameter of further preferred ultrafine slag powder is 0.5 ~ 3 μ m, and swelling agent is UEA-6 type swelling agent, short steelThe diameter of fiber is 0.1 ~ 0.2mm, and length is 2 ~ 8mm.
The preparation method who the invention still further relates to a kind of low porosity high frost resistance gelling agent, step is as follows:
(1) composite water-reducing agent and the grape of the polycarboxylate water-reducer that is 1 ~ 4:1 by weight ratio and aliphatic water reducing agent compositionThe compound retarder of sodium saccharate and calgon composition mixes, and obtains compound a, the quality of described composite water-reducing agentMark is 4 ~ 10 parts, and the mass fraction of compound retarder is 2 ~ 5 parts;
(2) by the ultrafine slag powder of 42 ~ 48 parts of mass fractions, the silicon powder of 24 ~ 30 parts, the swelling agent, 2 ~ 3 of 10 ~ 15 partsThe short steel fibre of part and the heavy calcium carbonate of 1 ~ 3 part mix, and obtain compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
The preparation method who the invention still further relates to a kind of low porosity high frost resistance gelling agent, step is as follows:
(1) composite water-reducing agent and the grape of the polycarboxylate water-reducer that is 1 ~ 4:1 by weight ratio and aliphatic water reducing agent compositionThe compound retarder of sodium saccharate and calgon composition mixes, and obtains compound a, the quality of described composite water-reducing agentMark is 4 ~ 10 parts, and the mass fraction of compound retarder is 2 ~ 5 parts;
(2) by the ultrafine slag powder of 42 ~ 48 parts of mass fractions, the silicon powder of 24 ~ 30 parts, the swelling agent, 2 ~ 3 of 10 ~ 15 partsPart short steel fibre, 1 ~ 3 part heavy calcium carbonate, 2 ~ 4 parts microcrystalline cellulose, 1 ~ 3 part dioctylis sulfosuccinas natricus,The industrial starch of the medical stone powder of 3 ~ 5 parts and 1 ~ 4 part mixes, and obtains compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
The preparation method who the invention still further relates to a kind of low porosity high frost resistance gelling agent, step is as follows:
(1) by the composite water-reducing agent and 3 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 4 parts of mass fractions and 1 partThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the ultrafine slag powder of 45 parts of mass fractions, the silicon powder of 25 parts, the swelling agent of 13 parts, the short steel fibre of 3 partsDimension, the heavy calcium carbonate of 2 parts, the microcrystalline cellulose of 3 parts, the dioctylis sulfosuccinas natricus of 2 parts, the medical stone powder and 3 of 4 partsThe industrial starch of part mixes, and obtains compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
The preparation method of the preferred a kind of low porosity high frost resistance gelling agent of the present invention, the average grain diameter of ultrafine slag powderBe 0.5 ~ 3 μ m, swelling agent is UEA-6 type swelling agent, and the diameter of short steel fibre is 0.1 ~ 0.2mm, and length is 2 ~ 8mm.
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A kind of low porosity high frost resistance gelling agent, by the ultrafine slag powder of 42 parts of mass fractions, the silicon powder, 15 of 30 partsPart swelling agent, the polycarboxylate water-reducer of 2 parts and the compound dehydrating agent of the aliphatic water reducing agent composition of 2 parts, the gluconic acid of 1 partThe compound retarder of the calgon composition of sodium and 1 part, the short steel fibre of 2 parts, the heavy calcium carbonate of 1 part, the crystallite of 2 partsThe dioctylis sulfosuccinas natricus composition of cellulose and 3 parts.
Embodiment 2
A kind of low porosity high frost resistance gelling agent, by the ultrafine slag powder of 48 parts of mass fractions, the silicon powder, 10 of 24 partsPart swelling agent, the polycarboxylate water-reducer of 8 parts and the compound dehydrating agent of the aliphatic water reducing agent composition of 2 parts, the gluconic acid of 4 partsThe compound retarder of the calgon composition of sodium and 1 part, the short steel fibre of 3 parts, the heavy calcium carbonate of 3 parts, the crystallite of 4 partsThe dioctylis sulfosuccinas natricus composition of cellulose and 1 part.
Embodiment 3
A kind of low porosity high frost resistance gelling agent, by the ultrafine slag powder of 44 parts of mass fractions, the silicon powder, 12 of 27 partsPart swelling agent, the polycarboxylate water-reducer of 6 parts and the compound dehydrating agent of the aliphatic water reducing agent composition of 2 parts, the gluconic acid of 3 partsThe compound retarder of the calgon composition of sodium and 1 part, the short steel fibre of 2.5 parts, the heavy calcium carbonate of 2 parts, 3 parts micro-Crystal fiber dioctylis sulfosuccinas natricus plain and 2 parts forms.
Embodiment 4
A kind of low porosity high frost resistance gelling agent, by the ultrafine slag powder of 42 parts of mass fractions, the silicon powder, 15 of 30 partsPart swelling agent, the polycarboxylate water-reducer of 2 parts and the compound dehydrating agent of the aliphatic water reducing agent composition of 2 parts, the gluconic acid of 1 partThe compound retarder of the calgon composition of sodium and 1 part, the short steel fibre of 2 parts, the heavy calcium carbonate of 1 part, the crystallite of 2 partsThe dioctylis sulfosuccinas natricus composition of cellulose and 3 parts.
Embodiment 5
A kind of low porosity high frost resistance gelling agent, by the ultrafine slag powder of 48 parts of mass fractions, the silicon powder, 10 of 24 partsPart swelling agent, the polycarboxylate water-reducer of 8 parts and the compound dehydrating agent of the aliphatic water reducing agent composition of 2 parts, the gluconic acid of 4 partsThe compound retarder of the calgon composition of sodium and 1 part, the short steel fibre of 3 parts, the heavy calcium carbonate of 3 parts, the crystallite of 4 partsCellulose, the dioctylis sulfosuccinas natricus of 2 parts, the medical stone powder of 3 parts and the industrial starch composition of 1 part.
Embodiment 6
A kind of low porosity high frost resistance gelling agent, by the ultrafine slag powder of 44 parts of mass fractions, the silicon powder, 12 of 27 partsPart swelling agent, the polycarboxylate water-reducer of 6 parts and the compound dehydrating agent of the aliphatic water reducing agent composition of 2 parts, the gluconic acid of 3 partsThe compound retarder of the calgon composition of sodium and 1 part, the short steel fibre of 2.5 parts, the heavy calcium carbonate of 2 parts, 3 parts micro-Crystal fiber element, the dioctylis sulfosuccinas natricus of 1 part, the medical stone powder of 5 parts and the industrial starch composition of 4 parts.
Embodiment 7
A kind of low porosity high frost resistance gelling agent, by the ultrafine slag powder of 45 parts of mass fractions, the silicon powder, 13 of 25 partsPart swelling agent, 4 parts of polycarboxylate water-reducers and the compound dehydrating agent of the aliphatic water reducing agent composition of 1 part, the gluconic acid sodium salt of 3 partsWith the compound retarder of the calgon composition of 1 part, the short steel fibre of 3 parts, the heavy calcium carbonate of 2 parts, the crystallite fibre of 3 partsDimension element, the dioctylis sulfosuccinas natricus of 2 parts, the medical stone powder of 4 parts and the industrial starch composition of 3 parts.
Embodiment 8
A kind of low porosity high frost resistance gelling agent is the ultrafine slag of 0.5 μ m by the average grain diameter of 42 parts of mass fractionsPowder, the silicon powder of 30 parts, the UEA-6 type swelling agent of 15 parts, the polycarboxylate water-reducer of 2 parts and the aliphatic water reducing agent composition of 2 partsCompound dehydrating agent, the gluconic acid sodium salt of 1 part and the compound retarder of the calgon composition of 1 part, the diameter of 2 parts be0.1mm, the short steel fibre that length is 2mm, the heavy calcium carbonate of 1 part, the microcrystalline cellulose of 2 parts, the sodium sulfo-succinate of 1 partDioctyl ester composition.
Embodiment 9
A kind of low porosity high frost resistance gelling agent, by the average grain diameter of 48 parts of mass fractions be 3 μ m ultrafine slag powder,Answering of the aliphatic water reducing agent composition of the silicon powder of 24 parts, the UEA-6 type swelling agent of 10 parts, the polycarboxylate water-reducer of 8 parts and 2 partsClose the compound retarder of the calgon composition of dehydrating agent, the gluconic acid sodium salt of 4 parts and 1 part, the diameter of 3 parts is 0.2mm, longDegree is the short steel fibre of 8mm, the heavy calcium carbonate of 3 parts, the microcrystalline cellulose of 4 parts, the dioctylis sulfosuccinas natricus, 5 of 2 partsThe medical stone powder of part and the industrial starch of 1 part composition.
Embodiment 10
A kind of low porosity high frost resistance gelling agent, by the average grain diameter of 45 parts of mass fractions be 2 μ m ultrafine slag powder,The aliphatic water reducing agent composition of the silicon powder of 25 parts, the UEA-6 type swelling agent of 13 parts, 4 parts of polycarboxylate water-reducers and 1 part compoundThe compound retarder of the calgon composition of dehydrating agent, the gluconic acid sodium salt of 3 parts and 1 part, the diameter of 3 parts are 0.15mm, longDegree is the short steel fibre of 5mm, the heavy calcium carbonate of 2 parts, the microcrystalline cellulose of 3 parts, the dioctylis sulfosuccinas natricus, 4 of 2 partsThe medical stone powder of part and the industrial starch of 3 parts composition.
Embodiment 11
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 1, step is as follows:
(1) by the compound dehydrating agent and 1 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 2 parts of mass fractions and 2 partsThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the ultrafine slag powder of 42 parts of mass fractions, the silicon powder of 30 parts, the swelling agent of 15 parts, the short steel fibre of 2 partsDimension, the heavy calcium carbonate of 1 part, the microcrystalline cellulose of 2 parts and the dioctylis sulfosuccinas natricus of 3 parts mix, and are mixedClose material b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
Embodiment 12
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 2, step is as follows:
(1) by the compound dehydrating agent and 4 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 8 parts of mass fractions and 2 partsThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the ultrafine slag powder of 48 parts of mass fractions, the silicon powder of 24 parts, the swelling agent of 10 parts, the short steel fibre of 3 partsDimension, the heavy calcium carbonate of 3 parts, the microcrystalline cellulose of 4 parts and the dioctylis sulfosuccinas natricus of 1 part mix, and are mixedClose material b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
Embodiment 13
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 3, step is as follows:
(1) by the compound dehydrating agent and 3 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 6 parts of mass fractions and 2 partsThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the ultrafine slag powder of 44 parts of mass fractions, the silicon powder of 27 parts, the swelling agent of 12 parts, the short steel fibre of 2.5 partsDimension, the heavy calcium carbonate of 2 parts, the microcrystalline cellulose of 3 parts and the dioctylis sulfosuccinas natricus of 2 parts mix, and are mixedClose material b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
Embodiment 14
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 4, step is as follows:
(1) by the compound dehydrating agent and 1 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 2 parts of mass fractions and 2 partsThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the ultrafine slag powder of 42 parts of mass fractions, the silicon powder of 30 parts, the swelling agent of 15 parts, the short steel fibre of 2 partsDimension, the heavy calcium carbonate of 1 part, the microcrystalline cellulose of 2 parts and the dioctylis sulfosuccinas natricus of 3 parts mix, and are mixedClose material b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
Embodiment 15
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 5, step is as follows:
(1) by the compound dehydrating agent and 4 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 8 parts of mass fractions and 2 partsThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the ultrafine slag powder of 48 parts of mass fractions, the silicon powder of 24 parts, the swelling agent of 10 parts, the short steel fibre of 3 partsDimension, the heavy calcium carbonate of 3 parts, the microcrystalline cellulose of 4 parts, the dioctylis sulfosuccinas natricus of 2 parts, the medical stone powder and 1 of 3 partsThe industrial starch of part mixes, and obtains compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
Embodiment 16
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 6, step is as follows:
(1) by the compound dehydrating agent and 3 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 6 parts of mass fractions and 2 partsThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the ultrafine slag powder of 44 parts of mass fractions, the silicon powder of 27 parts, the swelling agent of 12 parts, the short steel fibre of 2.5 partsDimension, the heavy calcium carbonate of 2 parts, the microcrystalline cellulose of 3 parts, the dioctylis sulfosuccinas natricus of 1 part, the medical stone powder and 4 of 5 partsThe industrial starch of part mixes, and obtains compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
Embodiment 17
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 7, step is as follows:
(1) by the compound dehydrating agent and 3 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 4 parts of mass fractions and 1 partThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the ultrafine slag powder of 45 parts of mass fractions, the silicon powder of 25 parts, the swelling agent of 13 parts, the short steel fibre of 3 partsDimension, the heavy calcium carbonate of 2 parts, the microcrystalline cellulose of 3 parts, the dioctylis sulfosuccinas natricus of 2 parts, the medical stone powder and 3 of 4 partsThe industrial starch of part mixes, and obtains compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
Embodiment 18
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 8, step is as follows:
(1) by the compound dehydrating agent and 1 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 2 parts of mass fractions and 2 partsThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the average grain diameter of 42 parts of mass fractions be the ultrafine slag powder of 0.5 μ m, the silicon powder, 15 parts of 30 partsUEA-6 type swelling agent, the diameter of 2 parts are 0.1mm, the short steel fibre that length is 2mm, the heavy calcium carbonate of 1 part, 2 parts micro-Crystal fiber element, the dioctylis sulfosuccinas natricus of 1 part mix, and obtain compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
Embodiment 19
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 9, step is as follows:
(1) by the compound dehydrating agent and 4 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 8 parts of mass fractions and 2 partsThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the average grain diameter of 48 parts of mass fractions be the ultrafine slag powder of 3 μ m, the silicon powder of 24 parts, the UEA-6 of 10 partsType swelling agent, the diameter of 3 parts are 0.2mm, the short steel fibre that length is 8mm and the heavy calcium carbonate of 3 parts, the crystallite fibre of 4 partsDimension element, the dioctylis sulfosuccinas natricus of 2 parts, the medical stone powder of 5 parts and the industrial starch of 1 part mix, and obtain compoundb；
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
Embodiment 20
By the preparation method of the low porosity high frost resistance gelling agent that becomes to be grouped into described in embodiment 10, step is as follows:
(1) by the compound dehydrating agent and 3 of the aliphatic water reducing agent composition of the polycarboxylate water-reducer of 4 parts of mass fractions and 1 partThe compound retarder of the gluconic acid sodium salt of part and the calgon of 1 part composition mixes, and obtains compound a;
(2) by the average grain diameter of 45 parts of mass fractions be the ultrafine slag powder of 2 μ m, the silicon powder of 25 parts, the UEA-6 of 13 partsType swelling agent, the diameter of 3 parts are 0.15mm, the short steel fibre that length is 5mm and the heavy calcium carbonate of 2 parts, the crystallite fibre of 3 partsDimension element, the dioctylis sulfosuccinas natricus of 2 parts, the medical stone powder of 4 parts and the industrial starch of 3 parts mix, and obtain compoundb；
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosityHigh frost resistance gelling agent.
The low porosity of the Portland cement that is 1:1:5:1 by weight ratio, sand, water and embodiment 11-20 gainedHigh frost resistance gelling agent mixes, and puts into curing box maintenance, takes out gained concrete test block and tests, with not after 28 daysAdd low porosity high frost resistance gelling agent to do blank assay, test detect data as shown in table 1, add gelling agent of the present invention andThe concrete morphology of blank group as shown in Figure 1.
Table 1 test detects data
Test result analysis: compared with blank test, add after low porosity high frost resistance gelling agent of the present invention concreteThe compression strength of test block obviously increases, and concrete has stronger anti-carbonation properties, anti-permeability performance and anti-freezing property, chlorine diffusion systemNumber reduces, and porosity reduces, and has only retained the micro-pore of inside concrete, and the concrete internal structure of above data declaration moreAdd closely knitly, not easy to crack, and the slight void of inside concrete can effectively cushion freeze-thaw damage stress, improves concrete hole knotStructure, improves concrete Frost Resistance. Chlorine diffusion coefficient reduction simultaneously, electric flux reduction and stability are all qualified, explanationAfter adding low porosity high frost resistance gelling agent of the present invention, concrete stability is better, and elastic mould reduces, concrete anti-Fragility increases, and by analyzing above, adds low porosity high frost resistance gelling agent of the present invention can greatly improve concrete durability.
Adding of medical stone powder of the present invention and industrial starch, can effectively improve the workability in work progress; Adopt specificUltrafine slag powder, swelling agent and the short steel fibre of parameter can effectively improve the performance of gelling agent, is optimum organization of the present invention.
The embodiment of the present invention 20 is the optimum combination of specific components of the present invention and specific components ratio, this optimum organization energyMake concrete intensity up to 355MPa, be 3.69 times of blank group, carbonation depth is only 23% of blank group, and mass loss is22% of blank group, relative dynamic elastic modulus is 63% of blank group, and elastic modelling quantity is 33% of blank group, and porosity is blank group73.1%, infiltration be highly only 29.9% of blank group, Cl-diffusion coefficient is 37.5% of blank group, electric flux is blank group39%, porosity is 73.17% of blank group, and above data show, add the concrete property indices of this optimum organizationAll more blank group is greatly improved, and is optimum combination of the present invention, and when construction workability the best.
Claims (5)
1. a low porosity high frost resistance gelling agent, is characterized in that: in weight portion, comprise following component: ultrafine slag42 ~ 48 parts, powder, 24 ~ 30 parts of silicon powders, 10 ~ 15 parts of swelling agents, 4 ~ 10 parts of composite water-reducing agents, 2 ~ 5 parts of compound retarders, short steel fibreTie up 1 ~ 3 part of 2 ~ 4 parts of 2 ~ 3 parts, 1 ~ 3 part of heavy calcium carbonate, microcrystalline cellulose and dioctylis sulfosuccinas natricus, medical stone powder 3 ~1 ~ 4 part of 5 parts and industrial starch; The polycarboxylate water-reducer that described composite water-reducing agent is 1 ~ 4:1 by weight ratio and aliphatic diminishingAgent composition; Gluconic acid sodium salt and calgon that described compound retarder is 1 ~ 4:1 by weight ratio form.
2. a kind of low porosity high frost resistance gelling agent according to claim 1, is characterized in that: in weight portion, byBelow become to be grouped into: the fat of 45 parts of ultrafine slag powders, 25 parts of silicon powders, 13 parts, 4 parts polycarboxylate water-reducers of swelling agent and 1 partThe compound retarder of the calgon composition of the compound dehydrating agent of family water reducer composition, the gluconic acid sodium salt of 3 parts and 1 part, short3 parts of steel fibres, 2 parts of heavy calcium carbonates, 3 parts of microcrystalline celluloses, 2 parts of dioctylis sulfosuccinas natricuses, 4 parts of medical stone powders and work3 parts of industry starch.
3. a kind of low porosity high frost resistance gelling agent according to claim 1 and 2, is characterized in that: ultrafine slag powderAverage grain diameter be 0.5 ~ 3 μ m, swelling agent is UEA-6 type swelling agent, the diameter of short steel fibre is 0.1 ~ 0.2mm, length is 2 ~8mm。
4. the preparation method of a kind of low porosity high frost resistance gelling agent claimed in claim 1, is characterized in that: step asUnder:
(1) composite water-reducing agent and the gluconic acid of the polycarboxylate water-reducer that is 1 ~ 4:1 by weight ratio and aliphatic water reducing agent compositionThe compound retarder of sodium and calgon composition mixes, and obtains compound a, the mass fraction of described composite water-reducing agentBe 4 ~ 10 parts, the mass fraction of compound retarder is 2 ~ 5 parts;
(2) by the ultrafine slag powder of 42 ~ 48 parts of mass fractions, the silicon powder of 24 ~ 30 parts, the swelling agent, 2 ~ 3 parts of 10 ~ 15 partsShort steel fibre, the heavy calcium carbonate of 1 ~ 3 part, the microcrystalline cellulose of 2 ~ 4 parts, the dioctylis sulfosuccinas natricus, 3 ~ 5 of 1 ~ 3 partThe medical stone powder of part and the industrial starch of 1 ~ 4 part mix, and obtain compound b;
(3) the compound b of the compound a of step (1) gained and step (2) gained is evenly mixed, obtain low porosity high resistanceFreezing property gelling agent.
5. the preparation method of a kind of low porosity high frost resistance gelling agent according to claim 4, is characterized in that: ultra-fineThe average grain diameter of slag powders is 0.5 ~ 3 μ m, and swelling agent is UEA-6 type swelling agent, and the diameter of short steel fibre is 0.1 ~ 0.2mm, longDegree is 2 ~ 8mm.
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| CN107176806A (en) * | 2017-06-20 | 2017-09-19 | 合肥慧林建材有限公司 | A kind of gelling agent and preparation method for concrete road sheet material |
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| CN1990413A (en) * | 2005-12-27 | 2007-07-04 | 尹小林 | Synthesis-reactivation technique for preparing inorganic coagulation material |
| CN101182143A (en) * | 2007-11-07 | 2008-05-21 | 北京航空航天大学 | Preparation of composite high-expansion cementing material by using industrial slag and preparation technique thereof |
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