CN103880377A - Geopolymer grouting material and preparation method thereof - Google Patents

Geopolymer grouting material and preparation method thereof Download PDF

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Publication number
CN103880377A
CN103880377A CN201410056758.7A CN201410056758A CN103880377A CN 103880377 A CN103880377 A CN 103880377A CN 201410056758 A CN201410056758 A CN 201410056758A CN 103880377 A CN103880377 A CN 103880377A
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geopolymer
parts
injection material
preparation
inorganic silicate
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CN103880377B (en
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刘乐平
谭华
覃润浦
邓家喜
崔学民
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Guangxi Transportation Research Institute
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Guangxi Transportation Research Institute
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Abstract

The invention discloses a geopolymer grouting material and a preparation method thereof. An inorganic silicate composite material is prepared from 71-91 parts of mineral waste residues, 66-70 parts of coal ashes, 16-28 parts of alkali-activator and 0.5-1.6 parts of retarder; and then, the inorganic silicate composite material is mixed with water according to a proportion of 0.30-0.38 to prepare the geopolymer grouting material. The geopolymer grouting material disclosed by the invention has characteristics of being good in liquidity, high in early strength, free of shrinkage, good in durability, adjustable in setting time and strength. Compared with the conventional geopolymer polymer material, the material is a composite material formed by mixing various powder materials, and can be applied by adding water and stirring on the spot; the geopolymer grouting material is simple in preparation process, low in cost, convenient to operate, capable of being widely applied to cement concrete pavement slab bottom grouting, cement concrete pavement crack repairing, foundation bolt anchoring, equipment installing, pres-stressed bridge crack pouring, engineering repairing, reinforcing, and the like.

Description

A kind of geopolymer injection material and preparation method thereof
Technical field
The invention belongs to inorganic composite materials technical field, relate to a kind of geopolymer injection material and preparation method thereof.
Background technology
Geopolymer is to react by active aluminum silicate material (metakaolin, clay, slag, flyash, silicon ash etc.) the class novel aluminum silicate inorganic gelling material generating with highly basic or highly basic silicate solutions.French famous scientist Davidovits in 1978 is first this material called after geopolymer and proposed the reaction mechanism of geopolymer.Geopolymer is owing to having the advantages such as high-early-strength, erosion resistance, environmental protection, high temperature resistant, good endurance, is widely used in the fields such as material of construction, traffic repairing, heavy metal ion adsorbed, nuclear waste disposal.In recent years, due to cement-based grouting material and chemical grouting material cost high, corrosion-resistant undesirable with flushing resistance, geopolymer starts to be applied in the aspects such as treatment of soft foundation, tunnel grouting, the grouting of prestress bridge, measures of cracks on concrete pavement reparation and plat-bottom escape processing.But also there are following some shortcomings in geopolymer injection material at present, limited the application of geopolymer in injection material field:
The form of alkali-activator has determined the unstable properties of geopolymer injection material, and construction technical requirement is high.At present, alkali-activator is mainly liquid, comprises low modulus sodium silicate solution, low modulus potash water glass, NaOH solution or KOH solution.According to bibliographical information both domestic and external, liquid soluble glass is prepared the modulus of geopolymer generally lower than 2.0, and along with the increase in storage time, the polymerization degree of water glass mesosilicic acid radical ion constantly changes, larger to the performance impact of geology polymer grout-ing material.If the geopolymer intensity of preparing than water glass with geopolymer prepared by NaOH solution or KOH solution is low, range of application is narrow.
Geopolymer prepared by liquid base exciting agent is the easy accumulation of salt in the surface soil in damp atmosphere, affects the weather resistance of geopolymer.
Have and utilize the solid waste such as slag, flyash, slag to prepare the report of geopolymer injection material and alkali-excited cement both at home and abroad, due to the difference of raw material active ingredient and chemical composition, gel time is uncontrollable, and the retardant of cement aspect does not have effect completely in geopolymer system at present, the retardant of therefore finding a kind of applicable geology polymeric system is the key factor that geopolymer is applied.
Investigators both domestic and external, from the deficiency of geopolymer, have applied for some Patents.
Chinese invention patent (patent No.: CN200810035397.2 and CN200410015696.1) discloses a kind of geopolymer soil consolidation grouting material and soil consolidation grouting material, and these two patents are all that flyash, slag, slag, high-calcium fly ass, alkali-activator and water are mixed with and are formed.Prepare the geopolymer soil consolidation grouting material that early strength is high, have good water stability, mobility and weather resistance.Different is that CN200810035397.2 has added a kind of water reducer, but the method alkali-activator used is not to be the water glass of instant type, but general solid water glass, the dissolution rate of water glass in slurry is slow, be difficult to prepare the injection material that meets different engineerings position performance index, according to the reaction mechanism of geopolymer, the dissolution rate in slurry of water glass mesosilicic acid radical ion and the silicate ion structure formation being dissolved in slurry directly affect geopolymer injection material performance.Meanwhile, these two kinds of preparation methods do not relate to retardant, and geopolymer is uncontrollable time of coagulation, particularly contrasts high calcium slag, and time of coagulation is very fast, do not have suitable retardant to there will be sudden strain of a muscle solidifying.
Chinese patent, number of patent application: CN200910153713.0 discloses a kind of geopolymer grouting material.The method is mixed with discarded concrete powder, desulfurated plaster, steel-making slag powder, slag powders, flyash, alkali-activator to form.The method alkali-activator used is liquid base exciting agent, is difficult to the geopolymer injection material that processability is stable, is not suitable for large-scale production and application.
Chinese patent, application number: 200910153713.0, publication number: CN101712546A, a kind of geopolymer grouting material of this disclosure of the invention, it is prepared by each component of following weight part: discarded concrete powder 10~30 weight parts, desulfurated plaster 5~15 weight parts, steel-making slag powder 10~20 weight parts, slag powders 20~40 weight parts, high-calcium fly ass 3~8 weight parts, flyash 20~50 weight parts, alkali-activator 5~10 weight parts.The geopolymer grouting material of this invention, although solved partially, polymer grout-ing material intensity is high, mobility, exists intensity low, time of coagulation is non-adjustable, narrow application range, the problem of unstable properties.
Existing bibliographical information and Patents only relate to the injection material at certain concrete engineering position, also exist intensity low, and time of coagulation is non-adjustable, narrow application range, the problem of unstable properties.
Summary of the invention
The present invention to solve prior art problem and a kind of intensity is provided and gel time adjustable, stable performance, geopolymer injection material applied widely, and significant for realizing this geopolymer injection material widespread use in engineering.
To achieve these goals, the present invention has adopted following technical scheme:
A kind of geopolymer injection material, is characterized in that: be mixed with and form according to 0.26~0.38 proportion by water and inorganic silicate matrix material; The composition parts by weight of described inorganic silicate matrix material: 0.3~1.6 part of 75~93 parts, slag, 66~70 parts, flyash, 16~28 parts of alkali-activators and retardant; Described retardant is two kinds of mixture powders of potassium primary phosphate, SODIUM PHOSPHATE, MONOBASIC and monocalcium phosphate.
Be mixed with and form according to 0.30 proportion by inorganic silicate matrix material and water above; The composition parts by weight of described inorganic silicate matrix material: 0.5 part of 91 parts, slag, 67 parts, flyash, 20 parts of alkali-activators and retardant.
Above-described slag by hardening granulated blast-furnace slag through grinding to 800 object powder; Flyash reaches 600 orders, more than quality reaches secondary; Alkali-activator is that modulus is 1.6 instant type powdery water glass, and fineness reaches 600 orders; More than retardant fineness reaches 400 orders.
The preparation process of above-mentioned geopolymer injection material is:
(1) preparation of inorganic silicate matrix material: 0.3~1.6 part of 75~93 parts, slag, 66~70 parts, flyash, 20~28 parts of alkali-activators and retardant is placed in to stirrer, under normal temperature, normal pressure, be uniformly mixed, obtain a kind of inorganic silicate matrix material;
(2) preparation of geopolymer injection material: the inorganic silicate matrix material of choosing water and step (1) is placed in stirrer with the weight ratio of 1:0.26~0.38, is uniformly mixed, and obtains geopolymer injection material.
The described churning time of above step (1) is: 6~10 minutes; The described churning time of step (2) is: 5~10 minutes.
Principle of work:
The present invention utilizes instant type powdery water glass, slag, flyash and retardant to select flexibly according to the requirement of construction, and be mixed with inorganic silicate composite granule, as long as at the construction field (site), can be prepared into geopolymer injection material just add as appropriate water mixes.The method and cement-based grouting material preparation method are similar, the on-the-spot evenly mixing that only need to add water, simple to operate, slag and flyash just can fully react with instant type powdery water glass within a short period of time simultaneously, slag reacts the early strength that has guaranteed injection material with water glass, flyash reacts with water glass and can in a big way, regulate time of coagulation and the later strength of injection material, and improves the weather resistance of injection material.
Beneficial effect of the present invention:
1. the present invention adopts two kinds of mixture powders of potassium primary phosphate, SODIUM PHOSPHATE, MONOBASIC and monocalcium phosphate as retardant, then select flexibly instant type powdery water glass, slag, flyash, retardant and water to be mixed with the method for geopolymer injection material, make gel time and the degree of mobilization performance index of geopolymer injection material reach stable and adjustable effect, thereby improved greatly the use over-all properties of geopolymer injection material.
2. this geology polymer grout-ing material preparation method and cement-based grouting material preparation method are similar, and on-the-spot need to add water, simple to operate; Slag and flyash just can fully react with instant type powdery water glass within a short period of time simultaneously, slag reacts the early strength that has guaranteed injection material with water glass, flyash reacts with water glass and can in a big way, regulate time of coagulation and the later strength of injection material, and improves the weather resistance of injection material.
3. to have the injection material performance index such as intensity, gel time, degree of mobilization stable, adjustable for this geology polymer grout-ing material, asepsis environment-protecting, the advantage that cost is low.Be widely used in the engineering positions such as road quick patching, Identification Beneath Concrete Slabs grouting, treatment of soft foundation, bridge strengthening crack repairing, deep layer curtain grouting, foot bolt fastening.With respect to traditional cement-based grouting material, cost is low, more superior aspect the weather resistance such as corrosion-resistant, heat-resisting stable, resistance to erosion.In terms of existing technologies, there is the advantage that stable performance is adjustable, the scope of application is large, simple to operate in this geology polymer grout-ing material.
Embodiment
Further describe in detail by the specific embodiment of the present invention below.
Embodiment 1:
A kind of geopolymer injection material, prepares inorganic silicate matrix material by slag 91kg, alkali-activator 20kg, flyash 67 and retardant 0.5kg; Then be mixed with and form by 100kg inorganic silicate matrix material and 30kg water again.
The preparation method of above-described geopolymer injection material, the preparation process of above-mentioned geopolymer injection material:
(1) preparation of inorganic silicate matrix material: by slag 91kg, alkali-activator 16kg, flyash 67 and retardant 0.5kg, be placed in stirrer, under normal temperature, normal pressure, mix and blend 5 minutes, obtains a kind of inorganic silicate matrix material; Described slag by hardening granulated blast-furnace slag through grinding to 800 object slag powder; flyash is that 600 order qualities reach flyash more than secondary; alkali-activator be modulus be 1.6 fineness at the instant type powdery of 600 object 16kg water glass, retardant is the mixture powder of 400 object 0.25kg SODIUM PHOSPHATE, MONOBASIC and 0.25kg potassium primary phosphate.
(2) preparation of geopolymer injection material: choose the inorganic silicate matrix material of 100kg step (1) and the ratio of 30kg water and be refitted in stirrer for mixing stirring 5 minutes, obtain geopolymer injection material.
Through measuring, the initial set 100min of this injection material, final set 130min, degree of mobilization 340mm, 1d ultimate compression strength 10.7MPa, 3d ultimate compression strength 16.1MPa, 28d ultimate compression strength 46.9MPa, this injection material is applicable to the application in distress in concrete Rapid-Repair field.
Embodiment 2:
A kind of geopolymer injection material, prepares inorganic silicate matrix material by slag 75kg, flyash 70kg, alkali-activator 28kg and retardant 1kg; Then formed by 100kg inorganic silicate matrix material and being mixed with of 38kg water again.
The preparation method of above-described geopolymer injection material, the preparation process of above-mentioned geopolymer injection material:
(1) preparation of inorganic silicate matrix material: by slag 71kg, flyash 70kg, alkali-activator 28kg and retardant 1kg, be placed in stirrer, under normal temperature, normal pressure, mix and blend 10 minutes, obtains a kind of inorganic silicate matrix material; Described slag by hardening granulated blast-furnace slag through grinding to 800 object slag powder; flyash is that 600 order qualities reach flyash more than secondary; alkali-activator be modulus be 1.6 fineness at the instant type powdery of 600 object 28kg water glass, retardant is the mixture powder of 450 object 0.5kg SODIUM PHOSPHATE, MONOBASIC and 0.5kg potassium primary phosphate.
(2) preparation of geopolymer injection material: choose the inorganic silicate matrix material of 100kg step (1) and the ratio of 38kg water and be refitted in stirrer for mixing stirring 10 minutes, obtain geopolymer injection material.
Through measuring, the initial set 300min of this injection material, final set 330min, degree of mobilization 330mm, 1d ultimate compression strength 6.9MPa, 3d ultimate compression strength 16.7MPa, 28d ultimate compression strength 31.3MPa, this injection material is applicable to the application of the aspects such as the deep layer curtain grouting in cement concrete road basic reinforcement, treatment of soft foundation and refuse tip.
Embodiment 3:
A kind of geopolymer injection material, prepares inorganic silicate matrix material by slag 93kg, flyash 66kg, alkali-activator 18kg and retardant 1.6kg; Then be mixed with and form by 100kg inorganic silicate matrix material and 32kg water again.
The preparation method of above-described geopolymer injection material, the preparation process of above-mentioned geopolymer injection material:
(1) preparation of inorganic silicate matrix material: by slag 93kg, flyash 66kg, alkali-activator 18kg and retardant 1.6kg, be placed in stirrer, under normal temperature, normal pressure, mix and blend 8 minutes, obtains a kind of inorganic silicate matrix material; Described slag by hardening granulated blast-furnace slag through grinding to 800 object slag powder; flyash is that 600 order qualities reach flyash more than secondary; alkali-activator be modulus be 1.6 fineness at the instant type powdery of 600 object 18kg water glass, retardant is the mixture powder of fineness at 600 object 1kg SODIUM PHOSPHATE, MONOBASIC and 0.6kg monocalcium phosphate.
(2) preparation of geopolymer injection material: choose the inorganic silicate matrix material of 100kg step (1) and the ratio of 32kg water and be refitted in stirrer for mixing stirring 8 minutes, obtain geopolymer injection material.
Through measuring, the initial set 360min of this injection material, final set 400min, degree of mobilization 325mm, 1d ultimate compression strength, 21.5MPa, 3d ultimate compression strength 40.7MPa, 28d ultimate compression strength 63.2MPa, this injection material is applicable to the application of the aspects such as Identification Beneath Concrete Slabs grouting, equipment installation and engineering first-aid repair.
Embodiment 4:
A kind of geopolymer injection material, prepares inorganic silicate matrix material by slag 85kg, flyash 68kg, alkali-activator 24kg and retardant 1.2kg; Then be mixed with and form by 100kg inorganic silicate matrix material and 34kg water again.
The preparation method of above-described geopolymer injection material, the preparation process of above-mentioned geopolymer injection material:
(1) preparation of inorganic silicate matrix material: by slag 85kg, flyash 68kg, alkali-activator 24kg and retardant 1.2kg, be placed in stirrer, under normal temperature, normal pressure, mix and blend 6 minutes, obtains a kind of inorganic silicate matrix material; Described slag by hardening granulated blast-furnace slag through grinding to 800 object slag powder; flyash is that 600 order qualities reach flyash more than secondary; alkali-activator be modulus be 1.6 fineness at the instant type powdery of 600 object 24kg water glass, retardant is the mixture powder of 800 object 0.6 kg potassium primary phosphates and 0.6 kg monocalcium phosphate.
(2) preparation of geopolymer injection material: choose the inorganic silicate matrix material of 100kg step (1) and the ratio of 34kg water and be refitted in stirrer for mixing stirring 6 minutes, obtain geopolymer injection material.
Through measuring, the initial set 120min of this injection material, final set 150min, degree of mobilization 313mm, 1d ultimate compression strength 13.7MPa, 3d ultimate compression strength 28.7MPa, 28d ultimate compression strength 46.1MPa, this injection material is applicable to the application of the aspects such as the reinforcing of normal concrete base course, prestress bridge crack repairing.
Above-described embodiment, is more preferably one of concrete mode of the present invention, and the common variation that those skilled in the art carry out within the scope of technical solution of the present invention and replacement all should be included in protection scope of the present invention.

Claims (5)

1. a geopolymer injection material, is characterized in that: be mixed with and form according to 0.26~0.38 proportion by water and inorganic silicate matrix material; The composition parts by weight of described inorganic silicate matrix material: 0.3~1.6 part of 75~93 parts, slag, 66~70 parts, flyash, 16~28 parts of alkali-activators and retardant; Described retardant is two kinds of mixture powders of potassium primary phosphate, SODIUM PHOSPHATE, MONOBASIC and monocalcium phosphate.
2. geopolymer injection material according to claim 1, is characterized in that: be mixed with and form according to 0.30 proportion by inorganic silicate matrix material and water; The composition parts by weight of described inorganic silicate matrix material: 0.5 part of 91 parts, slag, 20 parts of alkali-activators, 67 parts, flyash and retardant.
3. the preparation method of geopolymer injection material according to claim 1, is characterized in that: described slag by hardening granulated blast-furnace slag through grinding to 800 object powder; Flyash reaches 600 orders, more than quality reaches secondary; Alkali-activator is that modulus is 1.6 instant type powdery water glass, and fineness reaches 600 orders; More than retardant fineness reaches 400 orders.
4. the preparation method of the geopolymer injection material described in any one according to claim 1-2, is characterized in that: the preparation process of above-mentioned geopolymer injection material is:
(1) preparation of inorganic silicate matrix material: 0.3~1.6 part of 75~93 parts, slag, 66~70 parts, flyash, 20~28 parts of alkali-activators and retardant is placed in to stirrer, under normal temperature, normal pressure, be uniformly mixed, obtain a kind of inorganic silicate matrix material;
(2) preparation of geopolymer injection material: the inorganic silicate matrix material of choosing water and step (1) is placed in stirrer with the weight ratio of 1:0.26~0.38, is uniformly mixed, and obtains geopolymer injection material.
5. the preparation method of geopolymer injection material according to claim 4, is characterized in that: the described churning time of step (1) is: 6~10 minutes; The described churning time of step (2) is: 5~10 minutes.
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CN104177055A (en) * 2014-08-21 2014-12-03 广西启利新材料科技股份有限公司 Grouting material
CN104478376A (en) * 2014-12-29 2015-04-01 广西启利新材料科技股份有限公司 Rapid geopolymer-based road repairing material
CN104987029A (en) * 2015-07-27 2015-10-21 重庆建工市政交通工程有限责任公司 Inorganic post-anchoring grouting slurry
CN105541138A (en) * 2015-12-23 2016-05-04 山东大学 Geopolymer for treating salting soil foundation and preparing method and application of geopolymer
CN105541140A (en) * 2015-12-23 2016-05-04 山东大学 Geopolymer injecting paste material and preparing method and application thereof
CN105819769A (en) * 2016-03-30 2016-08-03 东南大学 Method for preparing water-permeable cement soil
CN106277861A (en) * 2016-08-15 2017-01-04 马鞍山十七冶工程科技有限责任公司 A kind of Novel geological polymer and preparation method
CN106587782A (en) * 2016-12-21 2017-04-26 江苏卓典钻掘科技有限公司 Method for preparing geopolymer grouting material and method for applying geopolymer grouting material to static pressure grouting
CN106699037A (en) * 2016-12-30 2017-05-24 成都嘉新科技集团有限公司 Geopolymer grouting material
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CN108516739A (en) * 2018-04-23 2018-09-11 长安大学 A kind of quick setting early strength type geo-polymer injecting paste material and preparation method thereof
CN109265126A (en) * 2018-10-24 2019-01-25 沈阳建筑大学 A method of grouting material is prepared using discarded clay brick
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CN112888664A (en) * 2018-08-22 2021-06-01 美国天主教大学 Coagulation controllable high strength class C fly ash cementitious compositions
CN113213826A (en) * 2021-05-11 2021-08-06 南通永诚惠海建设工程有限公司 Modified geopolymer grouting material and preparation method thereof
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CN104478376A (en) * 2014-12-29 2015-04-01 广西启利新材料科技股份有限公司 Rapid geopolymer-based road repairing material
CN104987029A (en) * 2015-07-27 2015-10-21 重庆建工市政交通工程有限责任公司 Inorganic post-anchoring grouting slurry
CN105541138A (en) * 2015-12-23 2016-05-04 山东大学 Geopolymer for treating salting soil foundation and preparing method and application of geopolymer
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CN110330307A (en) * 2019-07-18 2019-10-15 长安大学 A kind of roadbed reinforcement rapid hardening injecting paste material and preparation method thereof
CN110981261A (en) * 2020-01-16 2020-04-10 郑州腾飞建设工程集团有限公司 Oligomer prepared from superfine blast furnace slag powder and preparation method thereof
CN111718156A (en) * 2020-05-09 2020-09-29 兰州大学 Alkali-activated geopolymer grouting material for loess foundation and preparation method thereof
CN111807769A (en) * 2020-07-10 2020-10-23 山东华迪建筑科技有限公司 Slag-based highway grouting material and preparation method thereof
CN112159130A (en) * 2020-09-04 2021-01-01 湖南省第六工程有限公司 Geopolymer cementing material for temporary spray anchor support engineering and preparation method thereof
CN112299764A (en) * 2020-11-03 2021-02-02 中冶建工集团有限公司 Steel bar sleeve grouting material containing copper tailing sand and proportion setting method thereof
CN112299764B (en) * 2020-11-03 2022-03-01 中冶建工集团有限公司 Steel bar sleeve grouting material containing copper tailing sand and proportion setting method thereof
CN113213826A (en) * 2021-05-11 2021-08-06 南通永诚惠海建设工程有限公司 Modified geopolymer grouting material and preparation method thereof
CN114702294A (en) * 2022-04-02 2022-07-05 山东高速工程检测有限公司 Solid waste based super-retarding cementing material and preparation method and application thereof
CN114804748A (en) * 2022-04-24 2022-07-29 陕西正诚路桥工程研究院有限公司 High-calcium fly ash/cement composite cementing material solidified clay and preparation method thereof

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