CN106220101A - A kind of flyash base polymers grouting material and preparation method thereof - Google Patents

A kind of flyash base polymers grouting material and preparation method thereof Download PDF

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Publication number
CN106220101A
CN106220101A CN201610658031.5A CN201610658031A CN106220101A CN 106220101 A CN106220101 A CN 106220101A CN 201610658031 A CN201610658031 A CN 201610658031A CN 106220101 A CN106220101 A CN 106220101A
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parts
grouting
flyash
base polymers
cement
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CN201610658031.5A
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Inventor
杨卓舒
史红彬
蔡世楷
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Zhuoda New Material Technology Group Weihai Co Ltd
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Zhuoda New Material Technology Group Weihai Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/10Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
    • C04B2111/1062Halogen free or very low halogen-content materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/70Grouts, e.g. injection mixtures for cables for prestressed concrete
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a kind of flyash base polymers grouting material, count by weight, including following components: alkali-activator 20~40 parts, flyash 30~50 parts, metakaolin 0~10 parts, cement 0~10 parts, gather materials 60~90 parts, retarder 0.05~0.1 part, defoamer 0.03~0.05 part, water-retaining admixture 0.01~0.03 part, water 10~30 parts.Flyash base polymers grouting material of the present invention and preparation method thereof, the method preparation technology is simple, gained grouting material has preferable mobility and workability, microdilatancy, early strength and later strength are high, not bleeding, easy construction, the advantages such as durability is good, can substitute for traditional strength cement-based grouting material, fixing for foundation bolt, equipment Foundations or the back-grouting on steel construction suspension column floor, can effectively solving grouting material, to there is mobility in use little, setting time is short, workability is poor, later strength is low, cost is high, the problems such as shrinkage cracking, the trade waste resources such as rational and efficient use flyash, energy-conserving and environment-protective.

Description

A kind of flyash base polymers grouting material and preparation method thereof
Technical field
The invention belongs to building material technical field, relate to a kind of flyash base polymers grouting material and preparation method thereof.
Background technology
Ground polymers grouting material is again alkali-activated carbonatite grouting material, is with industrial waterglass as exciting agent, utilizes flyash, higher ridge The novel green grouting material that the trade wastes such as soil, slag are prepared from normal temperatures, have low energy consumption, pollute little, energy-conservation The advantages such as profit is useless, meet target and the requirement of China's building material industry sustainable development.Although such material has the hydraulic of excellence Performance, but condense too fast shortcoming owing to existing, but seldom apply in Practical Project.Such as, preparation high-strength concrete (> C80), time, the presetting period of alkali-activated carbonatite-slag cements is generally at about 10min.The mobility of grouting material and setting time etc. Service behaviour is the primary factor being contemplated that in Practical Project, and these performances directly affect filling process and grouting reality is reached The effect arrived, the problem that first should solve its most solidifying rapid hardening.
The Li Xueying of Harbin Institute of Technology etc. provide a kind of geo-polymer grouting material used for cold district, it Relate to geo-polymer grouting material.It to solve existing grouting material, and to there is production cost high, poor fluidity, intensity difference and freeze proof Weak effect.Its geo-polymer grouting material is made up of solid particle and exciting agent;Wherein solid particle is by flyash, slag and thin Aggregate forms;Exciting agent be modulus be the waterglass of 0.8~3.0.Use flyash and slag trade waste as gelling material Material, its wide material sources, with low cost, there is good mobile performance, do not produce bleeding and isolation, mixture cohesiveness is good, Fast solidifying, early strength is high, has good filling capacity, good anti-freezing property, freeze proof grade F300, is suitable for cold Using under temperature changing environment, easy construction is quick.But it uses the modulus scope wide (0.8~3.0) of waterglass, for the most of the same race The ground polymers of class and match ratio, there is optimum range in modulus of water glass, when less than this scope, along with the increase of modulus, silica The scale of construction increases on four sides, the beneficially polymer of Binder Materials, makes the intensity of ground polymers raise;When higher than this scope, it is provided that relatively Many silicon-oxy tetrahedron monomers, are unfavorable for depolymerization and the polymerization of mineral, make comprcssive strength show taper into, setting time prolongs Long trend.
The open a kind of cement based large dosage steel slag grouting material of the Yang Xiaoguang of MCC Central Research Institute of Building and Construction Co., Ltd., wherein presses Percentage by weight meter, described large dosage steel slag grouting material raw material includes: slag 0~80%, sulphate aluminium cement 0~16%, silicon Acid salt cement 0~31%, flyash 0~15%, sand 0~50%, exciting agent 0.2~2.0%, water reducer 0.4~1.5%, with And extender 0.02~0.05%.Its steel slag grouting material has high steel slag content, high-strength, the advantage of ungauged regions, good fluidity, property Energy index meets the requirement of GB/T 50448-2008 " strength cement-based grouting material application technology specification ", can economize on resources, and utilizes solid Body garbage, it is achieved low-carbon economy and resource circulation utilization.But its used sulphate aluminium cement has high-early-strength and the later stage The feature that intensity is the highest, causes grouting material while meeting early strengthening and high strengthening feature, has that mobility is little, setting time is short, work The property made is poor, later strength is low, high in cost of production problem, does not mentions and have the additional of expansion compensation in a large amount of use slags and formula Agent, being easily caused the grouting material later stage there are the problems such as shrinkage cracking.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of flyash base polymers grouting material and preparation method thereof, should Method preparation technology is simple, and gained grouting material has preferable mobility and workability, microdilatancy, early strength and later strength The advantage such as high, bleeding, easy construction, durability be not good, can substitute for traditional strength cement-based grouting material, for foundation bolt Fixing, equipment Foundations or the back-grouting on steel construction suspension column floor, and the trade waste resource such as rational and efficient use flyash, Energy-conserving and environment-protective.
For achieving the above object, technical scheme provided by the present invention is:
A kind of flyash base polymers grouting material, counts, by weight including following components:
Alkali-activator 20~40 parts, flyash 30~50 parts, metakaolin 0~10 parts, cement 0~10 parts, gather materials 60~ 90 parts, retarder 0.05~0.1 part, defoamer 0.03~0.05 part, water-retaining admixture 0.01~0.03 part, water 10~30 parts.
Preferably, described flyash base polymers grouting material, count by weight, including following components:
Alkali-activator 20 parts, 30 parts of flyash, metakaolin 5 parts, cement 10 parts, gather materials 60 parts, retarder 0.05 part, disappear Infusion 0.03 part, water-retaining admixture 0.01 part, 10 parts of water.
Wherein, described alkali-activator is modified water glass;
Wherein, described flyash particle diameter below 75 μm, SiO2、Al2O3、Fe2O3Three's total accounts for more than 72%, calcium content Less than 10%, loss on ignition is less than 10%;
Wherein, described metakaolin is calcined at 800~900 DEG C 2~3 hours by Kaolin and is prepared, and is mainly composed of SiO2And Al2O3
Wherein, described cement is Portland cement, is numbered 42.5 or 42.5R grades;
Wherein, described in gather materials for natural river sand or quartz sand, modulus of fineness is 2.3~3.0;
Wherein, one or more during described retarder is sucrose, citric acid, barium chloride, sodium gluconate;
Wherein, one or more in alkyl-silicone oil, alcohols, Oleum Ricini, Petiolus Trachycarpi oil and oleic acid of described defoamer;
Described water-retaining admixture is hydroxypropyl methyl cellulose ether or ethoxyl methyl cellulose ether.
The preparation method of above-mentioned flyash base polymers grouting material, comprises the following steps:
(3) the modulus modulus using sodium hydroxide to adjust modified water glass is 1.0~1.4, and concentration is 30%~40%;
(4) 3~5min are stirred after being mixed with remaining raw material by the modified water glass adjusted, after standing 1~2min, then Stirring 2~3min i.e. obtains grouting material.
Wherein, in step (2), mixing time is preferably 4min first, and time of repose is preferably 1.5min, is again stirring for Time is preferably 2.5min.
By above technical scheme, beneficial effects of the present invention is as follows:
The invention provides a kind of flyash base polymers grouting material and preparation method thereof, the method preparation technology is simple, Gained grouting material has preferable mobility and workability, microdilatancy, early strength and later strength are high, not bleeding, construction letter Just, the advantage such as durability is good, can substitute for traditional strength cement-based grouting material, for foundation bolt fixing, equipment Foundations or The back-grouting on steel construction suspension column floor, can effectively solve grouting material and have that mobility is little, setting time is short, work in use The problems such as the property made is poor, later strength is low, cost is high, shrinkage cracking, the trade waste resource such as rational and efficient use flyash, joint Can environmental protection.
Detailed description of the invention
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.Without departing substantially from present invention spirit In the case of essence, the amendment that the inventive method, step or condition are made or replacement, belong to the scope of the present invention.
In following example, the flyash particle diameter of use is below 75 μm, SiO2、Al2O3、Fe2O3Three add up to account for 72% with On, calcium content is less than 10%, and loss on ignition is less than 10%;
Embodiment 1
By following components and weight preparation raw material: modified water glass 20kg, flyash 30kg, metakaolin 10kg, label Grade is the Portland cement 5kg of 42.5, and modulus of fineness is the natural river sand 60kg of 2.3, sucrose 0.05kg, alkyl-silicone oil 0.03kg, hydroxypropyl methyl cellulose ether 0.01kg, water 10kg.
Prepare flyash base polymers grouting material according to the following steps:
(1) modulus using sodium hydroxide to adjust modified water glass is 1.0, and concentration is 30%;
(2) stir 3min after being mixed with remaining raw material by the modified water glass adjusted, after standing 1min, be stirred for 2min i.e. obtains grouting material.
Prepare gained grouting material performance test results according to the method described above as follows:
Embodiment 2
Raw material is prepared: modified water glass 20kg, flyash 40kg, label grade is 42.5R's by following components and weight Portland cement 5kg, modulus of fineness is the quartz sand 60kg of 2.5, citric acid 0.05kg, Oleum Ricini 0.03kg, hydroxypropyl Methyl cellulose ether 0.01kg, water 10kg.
Prepare flyash base polymers grouting material according to the following steps:
(1) modulus using sodium hydroxide to adjust modified water glass is 1.2, and concentration is 35%;
(2) stir 4min after being mixed with remaining raw material by the modified water glass adjusted, after standing 1.5min, be stirred for 2.5min i.e. obtains grouting material.
Prepare gained grouting material performance test results according to the method described above as follows:
Embodiment 3
By following components and weight preparation raw material: alkali-activator 20kg, flyash 30kg, metakaolin 5kg, label grade Being the Portland cement 10kg of 42.5, modulus of fineness is the quartz sand 60kg of 2.8, barium chloride 0.05kg, Petiolus Trachycarpi oil 0.03kg, ethoxyl methyl cellulose ether 0.01kg, water 10kg.
Prepare flyash base polymers grouting material according to the following steps:
(1) modulus using sodium hydroxide to adjust modified water glass is 1.2, and concentration is 35%;
(2) stir 4min after being mixed with remaining raw material by the modified water glass adjusted, after standing 1.5min, be stirred for 2.5min i.e. obtains grouting material.
Prepare gained grouting material performance test results according to the method described above as follows:
Embodiment 4
By following components and weight preparation raw material: modified water glass 30kg, flyash 30kg, metakaolin 10kg, label Grade is the Portland cement 5kg of 42.5, and modulus of fineness is the quartz sand 70kg of 3.0, sodium gluconate 0.05kg, oleic acid 0.05kg, ethoxyl methyl cellulose ether 0.03kg, water 10kg;
Prepare flyash base polymers grouting material according to the following steps:
(1) modulus using sodium hydroxide to adjust modified water glass is 1.4, and concentration is 40%;
(2) stir 5min after being mixed with remaining raw material by the modified water glass adjusted, after standing 2min, be stirred for 3min i.e. obtains grouting material.
Prepare gained grouting material performance test results according to the method described above as follows:
Embodiment 5
By following components and weight preparation raw material: modified water glass 40kg, flyash 50, metakaolin 10kg, fineness mould Number is the natural river sand 90kg of 2.8, citric acid 0.1kg, Oleum Ricini 0.05kg, hydroxypropyl methyl cellulose ether 0.03kg, water 30kg。
Prepare flyash base polymers grouting material according to the following steps:
(1) modulus using sodium hydroxide to adjust modified water glass is 1.4, and concentration is 40%;
(2) stir 5min after being mixed with remaining raw material by the modified water glass adjusted, after standing 2min, be stirred for 3min i.e. obtains grouting material.
Prepare gained grouting material performance test results according to the method described above as follows:

Claims (8)

1. a flyash base polymers grouting material, it is characterised in that count by weight, including following components:
Alkali-activator 20~40 parts, flyash 30~50 parts, metakaolin 0~10 parts, cement 0~10 parts, gather materials 60~90 parts, Retarder 0.05~0.1 part, defoamer 0.03~0.05 part, water-retaining admixture 0.01~0.03 part, water 10~30 parts.
2. according to the flyash base polymers grouting material described in claim 1, it is characterised in that count by weight, including with Lower component:
Alkali-activator 20 parts, 30 parts of flyash, metakaolin 5 parts, cement 10 parts, gather materials 60 parts, retarder 0.05 part, defoamer 0.03 part, water-retaining admixture 0.01 part, 10 parts of water.
3. according to the flyash base polymers grouting material described in claim 1, it is characterised in that: described alkali-activator is modified water Glass;Described flyash particle diameter below 75 μm, SiO2、Al2O3、Fe2O3Three's total accounts for more than 72%, and calcium content is less than 10%, loss on ignition is less than 10%.
4. according to the flyash base polymers grouting material described in claim 1, it is characterised in that: described metakaolin is by Kaolin Calcine at 800~900 DEG C 2~3 hours and prepare, be mainly composed of SiO2And Al2O3;Described cement is Portland cement, It is numbered 42.5 or 42.5R grades.
5. according to the flyash base polymers grouting material described in claim 1, it is characterised in that gather materials described in: for natural river sand or Quartz sand, modulus of fineness is 2.3~3.0;Described retarder be the one in sucrose, citric acid, barium chloride, sodium gluconate or Multiple.
6. according to the flyash base polymers grouting material described in claim 1, it is characterised in that: described defoamer is selected from alkyl silicon One or more in oil, alcohols, Oleum Ricini, Petiolus Trachycarpi oil and oleic acid;Described water-retaining admixture is hydroxypropyl methyl cellulose ether Or ethoxyl methyl cellulose ether.
7. the preparation method of the flyash base polymers grouting material described in claim 1, it is characterised in that comprise the following steps:
(1) the modulus modulus using sodium hydroxide to adjust modified water glass is 1.0~1.4, and concentration is 30%~40%;
(2) stir 3~5min after being mixed with remaining raw material by the modified water glass adjusted, after standing 1~2min, be stirred for 2~3min i.e. obtain grouting material.
8., according to the preparation method described in claim 7, it is characterised in that in step (2), mixing time is preferably first 4min, time of repose is preferably 1.5min, and the time of being again stirring for is preferably 2.5min.
CN201610658031.5A 2016-08-12 2016-08-12 A kind of flyash base polymers grouting material and preparation method thereof Pending CN106220101A (en)

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