WO2018028225A1 - Fly ash based geopolymer grouting material and preparation method therefor - Google Patents

Fly ash based geopolymer grouting material and preparation method therefor Download PDF

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WO2018028225A1
WO2018028225A1 PCT/CN2017/079509 CN2017079509W WO2018028225A1 WO 2018028225 A1 WO2018028225 A1 WO 2018028225A1 CN 2017079509 W CN2017079509 W CN 2017079509W WO 2018028225 A1 WO2018028225 A1 WO 2018028225A1
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parts
fly ash
minutes
base polymer
water
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PCT/CN2017/079509
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French (fr)
Chinese (zh)
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杨卓舒
孟宪娴
纪轩
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卓达新材料科技集团威海股份有限公司
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Publication of WO2018028225A1 publication Critical patent/WO2018028225A1/en

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
    • C04B2111/1062—Halogen free or very low halogen-content materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Definitions

  • the invention belongs to the technical field of building materials, and relates to a fly ash base polymer grout and a preparation method thereof.
  • Geopolymer grouting also known as alkali-excited grouting, is a new type of green grouting material prepared by using industrial water glass as an activator and using industrial waste such as fly ash, metakaolin and slag at room temperature, with low energy consumption.
  • industrial waste such as fly ash, metakaolin and slag at room temperature, with low energy consumption.
  • the advantages of small pollution, energy saving and waste, etc. are in line with the goals and requirements for the sustainable development of China's building materials industry. Although such materials have excellent hydraulic properties, they are rarely used in practical engineering due to the disadvantage of excessive coagulation.
  • high-strength concrete >C80
  • the initial setting time of the alkali-excited-slag cement is usually about 10 minutes.
  • the fluidity of the grout and the working time such as setting time are the primary factors that should be considered in practical engineering. These properties directly affect the effect achieved by the grouting process and grouting. Firstly, the problem of rapid setting and coagulation should be solved.
  • the geopolymer grout consists of solid particles and an activator; wherein the solid particles are composed of fly ash, slag and fine aggregate; the activator is water glass with a modulus of 0.8-3.0.
  • the use of fly ash and slag industrial waste as a cementing material has a wide range of sources, low cost, good flow performance, no bleeding and segregation, good cohesiveness of the mixture, fast setting and hardening, and high early strength.
  • the modulus range of the water glass is too wide (0.8-3.0).
  • the modulus has the best range. When it is lower than the range, the modulus increases. , the amount of silicon tetrahedron is increased, which is beneficial to the polymer of the cementitious material, so that the geopolymer
  • the strength is higher than this range, more silicon tetrahedral monomers are provided, which is not conducive to the depolymerization and polymerization of minerals, so that the compressive strength shows a tendency to become smaller and the setting time is prolonged.
  • Yang Xiaoguang of MCC Construction Research Institute Co., Ltd. discloses a cement-based high-volume steel slag grout, wherein the high-volume steel slag grouting material comprises: steel slag 0-80%, sulphoaluminate cement 0 ⁇ 16%, Portland cement 0 ⁇ 31%, fly ash 0 ⁇ 15%, sand 0 ⁇ 50%, activator 0.2 ⁇ 2.0%, water reducing agent 0.4 ⁇ 1.5%, and expansion agent 0.02 ⁇ 0.05% .
  • the steel slag grout has the advantages of high steel slag content, high strength, no shrinkage and good fluidity.
  • the performance index meets the requirements of GB/T 50448-2008 "Technical Specifications for Cement-based Grouting", which can save resources and utilize solid waste. To achieve a low carbon economy and resource recycling.
  • the sulphoaluminate cement used has the characteristics of fast hardening and early strength and low late strength, which results in the grouting material having the characteristics of early strength and high strength, short fluidity, short condensing time, poor workability and low late strength.
  • the problem of high cost, the use of steel slag is extensively used, and the admixture with expansion compensation is not mentioned in the formula, which easily leads to problems such as shrinkage cracking in the later stage of grouting.
  • the present invention provides a fly ash base polymer grout and a preparation method thereof, the method has simple preparation process, and the obtained grout has good fluidity and workability, micro-expansion, early strength and late strength.
  • High, non-bleeding, simple construction, good durability, etc. can replace the traditional cement-based grouting material, used for the anchoring of anchor bolts, equipment foundation or secondary grouting of steel structure column foot, and rational and effective use of powder Industrial waste resources such as coal ash, energy saving and environmental protection.
  • a fly ash base polymer grout in parts by weight, comprising the following components:
  • alkali activator 20-40 parts of alkali activator, 30-50 parts of fly ash, 0-10 parts of metakaolin, 0-10 parts of cement, 60-90 parts of aggregate, 0.05-0.1 parts of retarder, defoamer 0.03-0.05
  • the water-retaining thickener is 0.01-0.03 parts, and the water is 10-30 parts.
  • the fly ash base polymer grout is in parts by weight, including Lower component:
  • alkali activator 20 parts of alkali activator, 30 parts of fly ash, 5 parts of metakaolin, 10 parts of cement, 60 parts of aggregate, 0.05 parts of retarder, 0.03 parts of antifoaming agent, 0.01 parts of water-retaining thickener and 10 parts of water.
  • the alkali activator is a modified water glass
  • the fly ash has a particle size of 75 ⁇ m or less, and SiO 2 , Al 2 O 3 , and Fe 2 O 3
  • the metakaolin is obtained by calcining kaolin at 800-900 ° C for 2 to 3 hours, and the main components are SiO 2 and Al 2 O 3 .
  • the cement is ordinary Portland cement, and the grade is 42.5 or 42.5R;
  • the aggregate is natural river sand or quartz sand, and the fineness modulus is 2.3 to 3.0;
  • the retarder is one or more of sucrose, citric acid, barium chloride and sodium gluconate;
  • the antifoaming agent is selected from one or more of alkyl silicone oil, alcohol, castor oil, palm oil and oleic acid;
  • the water retention thickener is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether.
  • the preparation method of the above-mentioned fly ash base polymer grout comprises the following steps:
  • the first stirring time is preferably 4 minutes
  • the standing time is preferably 1.5 minutes
  • the stirring time is preferably 2.5 minutes.
  • the invention provides a fly ash base polymer grout and a preparation method thereof, the method is
  • the preparation process is simple, and the obtained grouting material has the advantages of good fluidity and workability, micro-expansion, early strength and late strength, no bleeding, simple construction and good durability, and can replace the traditional cement-based grouting material.
  • the secondary grouting of the anchor bolt, the equipment foundation or the steel column foot floor can effectively solve the problem that the grouting material has small fluidity, short coagulation time, poor workability, low late strength, high cost, shrinkage cracking, etc.
  • the problem is to make rational and effective use of industrial waste resources such as fly ash, and to save energy and protect the environment.
  • the particle size of the fly ash used in the following examples is 75 ⁇ m or less, and the total of SiO 2 , Al 2 O 3 , and Fe 2 O 3 accounts for 72% or more, the calcium content is less than 10%, and the loss on ignition is less than 10%. ;
  • the raw materials were prepared according to the following components and weight: 20kg of modified water glass, 40kg of fly ash, 5kg of ordinary Portland cement with grade 42.5R, 60kg of quartz sand with a fineness modulus of 2.5, 0.05kg of citric acid, ⁇ Sesame oil 0.03kg, hydroxypropyl methyl cellulose ether 0.01kg, water 10kg.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Disclosed are a fly ash based geopolymer grouting material and a preparation method therefor. The raw materials comprise the following components in parts by weight: 20-40 parts of an alkali activator, 30-50 parts of fly ash, 0-10 parts of metakaolin, 0-10 parts of cement, 60-90 parts of an aggregate, 0.05-0.1 parts of a retarder, 0.03-0.05 parts of a defoamer, 0.01-0.03 parts of a water-retention thickener, and 10-30 parts of water. The preparation method comprises: sodium hydroxide is used to adjust the modulus of the modified water glass to be 1.0-1.4 and the concentration to be 30% - 40%; and the adjusted modified water glass and the other raw materials are mixed together, then stirred for 3-5 minutes, allowed to stand for 1-2 minutes, and then stirred for 2-3 minutes to obtain the grouting material.

Description

一种粉煤灰基地聚物灌浆料及其制备方法Fly ash base polymer grout and preparation method thereof 技术领域Technical field
本发明属于建筑材料技术领域，涉及一种粉煤灰基地聚物灌浆料及其制备方法。The invention belongs to the technical field of building materials, and relates to a fly ash base polymer grout and a preparation method thereof.
背景技术Background technique
地聚物灌浆料又叫碱激发灌浆料，是以工业水玻璃为激发剂，利用粉煤灰、偏高岭土、矿渣等工业废弃物在常温下制备而成的新型绿色灌浆材料，具有低能耗、污染小、节能利废等优点，符合我国建材行业可持续发展的目标和要求。尽管该类材料具有优异的水硬性能，但由于存在凝结过快的缺点，但在实际工程中很少应用。例如，配制高强混凝土(＞C80)时，碱激发-矿渣水泥的初凝时间通常在10min左右。灌浆料的流动性以及凝结时间等工作性能是实际工程中应当考虑的首要因素，这些性能直接影响灌浆过程和灌浆实际所达到的效果，首先应该解决其快凝速凝的问题。Geopolymer grouting, also known as alkali-excited grouting, is a new type of green grouting material prepared by using industrial water glass as an activator and using industrial waste such as fly ash, metakaolin and slag at room temperature, with low energy consumption. The advantages of small pollution, energy saving and waste, etc., are in line with the goals and requirements for the sustainable development of China's building materials industry. Although such materials have excellent hydraulic properties, they are rarely used in practical engineering due to the disadvantage of excessive coagulation. For example, when formulating high-strength concrete (>C80), the initial setting time of the alkali-excited-slag cement is usually about 10 minutes. The fluidity of the grout and the working time such as setting time are the primary factors that should be considered in practical engineering. These properties directly affect the effect achieved by the grouting process and grouting. Firstly, the problem of rapid setting and coagulation should be solved.
哈尔滨工业大学的李雪英等提供一种用于寒冷地区使用的地质聚合物灌浆料，它涉及地质聚合物灌浆料。它要解决现有灌浆料存在生产成本高，流动性差，强度差以及抗冻效果差。其地质聚合物灌浆料由固体颗粒和激发剂组成；其中固体颗粒由粉煤灰、矿渣和细骨料组成；激发剂是模数为0.8～3.0的水玻璃。使用粉煤灰和矿渣工业废弃物作为胶凝材料，其来源广泛，成本低廉，具有良好的流动性能，不产生泌水和离析，拌合物粘聚性良好，凝结硬化快，早期强度高，具有很好的填充性能，很好的抗冻性能，抗冻等级F300，适合寒冷温变环境下使用，施工简便快捷。但其使用水玻璃的模数范围过宽(0.8～3.0)，针对不同种类和配合比的地聚物，水玻璃模数存在最佳范围，当低于该范围时，随着模数的增加，硅氧四面体量增大，有利于胶凝材料的聚合物，使地聚物 的强度升高；当高于该范围时，提供较多的硅氧四面体单体，不利于矿物的解聚和聚合，使抗压强度表现出逐渐变小、凝结时间延长的趋势。Li Xueying of Harbin Institute of Technology and others provide a geopolymer grout for use in cold regions, which involves geopolymer grouting. It has to solve the existing high production cost, poor fluidity, poor strength and poor anti-freezing effect of the grout. The geopolymer grout consists of solid particles and an activator; wherein the solid particles are composed of fly ash, slag and fine aggregate; the activator is water glass with a modulus of 0.8-3.0. The use of fly ash and slag industrial waste as a cementing material has a wide range of sources, low cost, good flow performance, no bleeding and segregation, good cohesiveness of the mixture, fast setting and hardening, and high early strength. It has good filling performance, good frost resistance and anti-freezing grade F300. It is suitable for use in cold and warm environment, and the construction is simple and quick. However, the modulus range of the water glass is too wide (0.8-3.0). For different kinds and ratios of the geopolymer, the water glass modulus has the best range. When it is lower than the range, the modulus increases. , the amount of silicon tetrahedron is increased, which is beneficial to the polymer of the cementitious material, so that the geopolymer When the strength is higher than this range, more silicon tetrahedral monomers are provided, which is not conducive to the depolymerization and polymerization of minerals, so that the compressive strength shows a tendency to become smaller and the setting time is prolonged.
中冶建筑研究总院有限公司的杨晓光公开一种水泥基大掺量钢渣灌浆料，其中按重量百分比计，所述大掺量钢渣灌浆料原料包括：钢渣0～80％，硫铝酸盐水泥0～16％，硅酸盐水泥0～31％，粉煤灰0～15％，砂0～50％，激发剂0.2～2.0％，减水剂0.4～1.5％，以及膨胀剂0.02～0.05％。其钢渣灌浆料具有高钢渣掺量、高强、无收缩、流动性好的优点，性能指标符合GB/T 50448-2008《水泥基灌浆料应用技术规范》的要求，可以节约资源，利用固体废弃物，实现低碳经济和资源循环利用。但其所使用硫铝酸盐水泥具有快硬早强而后期强度不高的特点，导致灌浆料在满足早强高强特点的同时，存在流动性小、凝结时间短、工作性差、后期强度低、成本高等问题，大量使用钢渣且配方中未提到具有膨胀补偿的外加剂，容易导致灌浆料后期出现收缩开裂等问题。Yang Xiaoguang of MCC Construction Research Institute Co., Ltd. discloses a cement-based high-volume steel slag grout, wherein the high-volume steel slag grouting material comprises: steel slag 0-80%, sulphoaluminate cement 0～16%, Portland cement 0～31%, fly ash 0～15%, sand 0～50%, activator 0.2～2.0%, water reducing agent 0.4～1.5%, and expansion agent 0.02～0.05% . The steel slag grout has the advantages of high steel slag content, high strength, no shrinkage and good fluidity. The performance index meets the requirements of GB/T 50448-2008 "Technical Specifications for Cement-based Grouting", which can save resources and utilize solid waste. To achieve a low carbon economy and resource recycling. However, the sulphoaluminate cement used has the characteristics of fast hardening and early strength and low late strength, which results in the grouting material having the characteristics of early strength and high strength, short fluidity, short condensing time, poor workability and low late strength. The problem of high cost, the use of steel slag is extensively used, and the admixture with expansion compensation is not mentioned in the formula, which easily leads to problems such as shrinkage cracking in the later stage of grouting.
发明内容Summary of the invention
针对上述技术问题，本发明提供了一种粉煤灰基地聚物灌浆料及其制备方法，该方法制备工艺简单，所得灌浆料具有较好的流动性和工作性、微膨胀、早期强度和后期强度高、不泌水、施工简便、耐久性良好等优点，可以代替传统的水泥基灌浆料，用于地脚螺栓的固定、设备基础或钢结构柱脚地板的二次灌浆，且合理有效利用粉煤灰等工业废弃物资源，节能环保。In view of the above technical problems, the present invention provides a fly ash base polymer grout and a preparation method thereof, the method has simple preparation process, and the obtained grout has good fluidity and workability, micro-expansion, early strength and late strength. High, non-bleeding, simple construction, good durability, etc., can replace the traditional cement-based grouting material, used for the anchoring of anchor bolts, equipment foundation or secondary grouting of steel structure column foot, and rational and effective use of powder Industrial waste resources such as coal ash, energy saving and environmental protection.
为实现上述目的，本发明所提供的技术方案是：In order to achieve the above object, the technical solution provided by the present invention is:
一种粉煤灰基地聚物灌浆料，按重量份数计，包括以下组分：A fly ash base polymer grout, in parts by weight, comprising the following components:
碱激发剂20～40份、粉煤灰30～50份，偏高岭土0～10份，水泥0～10份，集料60～90份，缓凝剂0.05～0.1份，消泡剂0.03～0.05份，保水增稠剂0.01～0.03份，水10～30份。20-40 parts of alkali activator, 30-50 parts of fly ash, 0-10 parts of metakaolin, 0-10 parts of cement, 60-90 parts of aggregate, 0.05-0.1 parts of retarder, defoamer 0.03-0.05 The water-retaining thickener is 0.01-0.03 parts, and the water is 10-30 parts.
优选地，所述的粉煤灰基地聚物灌浆料，按重量份数计，包括以 下组分：Preferably, the fly ash base polymer grout is in parts by weight, including Lower component:
碱激发剂20份、粉煤灰30份，偏高岭土5份，水泥10份，集料60份，缓凝剂0.05份，消泡剂0.03份，保水增稠剂0.01份，水10份。20 parts of alkali activator, 30 parts of fly ash, 5 parts of metakaolin, 10 parts of cement, 60 parts of aggregate, 0.05 parts of retarder, 0.03 parts of antifoaming agent, 0.01 parts of water-retaining thickener and 10 parts of water.
其中，所述碱激发剂为改性水玻璃；Wherein the alkali activator is a modified water glass;
其中，所述粉煤灰粒径在75μm以下，SiO2、Al2O3、Fe2O3三者Wherein, the fly ash has a particle size of 75 μm or less, and SiO 2 , Al 2 O 3 , and Fe 2 O 3
合计占72％以上，含钙量低于10％，烧失量低于10％；Total accounted for more than 72%, calcium content below 10%, loss on ignition less than 10%;
其中，所述偏高岭土由高岭土在800～900℃下煅烧2～3小时制得，主要成分为SiO2和Al2O3。Wherein, the metakaolin is obtained by calcining kaolin at 800-900 ° C for 2 to 3 hours, and the main components are SiO 2 and Al 2 O 3 .
其中，所述水泥为普通硅酸盐水泥，标号为42.5或42.5R等级；Wherein, the cement is ordinary Portland cement, and the grade is 42.5 or 42.5R;
其中，所述集料为天然河砂或石英砂，细度模数为2.3～3.0；Wherein, the aggregate is natural river sand or quartz sand, and the fineness modulus is 2.3 to 3.0;
其中，所述缓凝剂为蔗糖、柠檬酸、氯化钡、葡萄糖酸钠中的一种或多种；Wherein the retarder is one or more of sucrose, citric acid, barium chloride and sodium gluconate;
其中，所述消泡剂选自烷基硅油、醇类、蓖麻油、棕榈油和油酸中的一种或多种；Wherein the antifoaming agent is selected from one or more of alkyl silicone oil, alcohol, castor oil, palm oil and oleic acid;
所述保水增稠剂为羟丙基甲基纤维素醚或羟乙基甲基纤维素醚。The water retention thickener is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether.
上述粉煤灰基地聚物灌浆料的制备方法，包括以下步骤：The preparation method of the above-mentioned fly ash base polymer grout comprises the following steps:
(3)使用氢氧化钠调整改性水玻璃的模数模数为1.0～1.4，浓度为30％～40％；(3) adjusting the modulus of the modified water glass by using sodium hydroxide to be 1.0 to 1.4, and the concentration is 30% to 40%;
(4)将调整好的改性水玻璃与其余原材料混合后搅拌3～5min，静置1～2min后，再搅拌2～3min即得灌浆料。(4) Mix the modified modified water glass with the rest of the raw materials, stir for 3 to 5 minutes, let stand for 1 to 2 minutes, and then stir for 2 to 3 minutes to obtain the grout.
其中，在步骤(2)中，首次搅拌时间优选为4min，静置时间优选为1.5min，再次搅拌时间优选为2.5min。Among them, in the step (2), the first stirring time is preferably 4 minutes, the standing time is preferably 1.5 minutes, and the stirring time is preferably 2.5 minutes.
通过以上技术方案，本发明的有益效果如下：Through the above technical solutions, the beneficial effects of the present invention are as follows:
本发明提供了一种粉煤灰基地聚物灌浆料及其制备方法，该方法制 备工艺简单，所得灌浆料具有较好的流动性和工作性、微膨胀、早期强度和后期强度高、不泌水、施工简便、耐久性良好等优点，可以代替传统的水泥基灌浆料，用于地脚螺栓的固定、设备基础或钢结构柱脚地板的二次灌浆，可以有效解决灌浆料在使用时存在流动性小、凝结时间短、工作性差、后期强度低、成本高、收缩开裂等问题，合理有效利用粉煤灰等工业废弃物资源，节能环保。The invention provides a fly ash base polymer grout and a preparation method thereof, the method is The preparation process is simple, and the obtained grouting material has the advantages of good fluidity and workability, micro-expansion, early strength and late strength, no bleeding, simple construction and good durability, and can replace the traditional cement-based grouting material. The secondary grouting of the anchor bolt, the equipment foundation or the steel column foot floor can effectively solve the problem that the grouting material has small fluidity, short coagulation time, poor workability, low late strength, high cost, shrinkage cracking, etc. The problem is to make rational and effective use of industrial waste resources such as fly ash, and to save energy and protect the environment.
具体实施方式detailed description
以下实施例用于说明本发明，但不用来限制本发明的范围。在不背离本发明精神和本质的情况下，对本发明方法、步骤或条件所作的修改或替换，均属于本发明的范围。The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. Modifications or substitutions of the methods, steps or conditions of the invention are intended to be included within the scope of the invention.
以下实施例中使用的粉煤灰粒径在75μm以下，SiO2、Al2O3、Fe2O3三者合计占72％以上，含钙量低于10％，烧失量低于10％；The particle size of the fly ash used in the following examples is 75 μm or less, and the total of SiO 2 , Al 2 O 3 , and Fe 2 O 3 accounts for 72% or more, the calcium content is less than 10%, and the loss on ignition is less than 10%. ;
实施例1Example 1
按以下组分和重量准备原料：改性水玻璃20kg、粉煤灰30kg，偏高岭土10kg，标号等级为42.5的普通硅酸盐水泥5kg，细度模数为2.3的天然河砂60kg，蔗糖0.05kg，烷基硅油0.03kg，羟丙基甲基纤维素醚0.01kg，水10kg。Prepare the raw materials according to the following components and weight: 20kg of modified water glass, 30kg of fly ash, 10kg of metakaolin, 5kg of ordinary Portland cement with grade 42.5, 60kg of natural river sand with fineness modulus of 2.3, sucrose 0.05 Kg, alkyl silicone oil 0.03 kg, hydroxypropyl methyl cellulose ether 0.01 kg, water 10 kg.
按以下步骤制备粉煤灰基地聚物灌浆料：Prepare the fly ash base polymer grout as follows:
(1)使用氢氧化钠调整改性水玻璃的模数为1.0，浓度为30％；(1) using sodium hydroxide to adjust the modulus of the modified water glass to 1.0, the concentration is 30%;
(2)将调整好的改性水玻璃与其余原材料混合后搅拌3min，静置1min后，再搅拌2min即得灌浆料。按照上述方法制备所得灌浆料性能检测结果如下： (2) Mix the modified modified water glass with the rest of the raw materials, stir for 3 minutes, let stand for 1 min, and then stir for 2 min to obtain the grout. The performance test results of the prepared grout according to the above method are as follows:
Figure PCTCN2017079509-appb-000001
Figure PCTCN2017079509-appb-000001
实施例2Example 2
按以下组分和重量准备原料：改性水玻璃20kg、粉煤灰40kg，标号等级为42.5R的普通硅酸盐水泥5kg，细度模数为2.5的石英砂60kg，柠檬酸0.05kg，蓖麻油0.03kg，羟丙基甲基纤维素醚0.01kg，水10kg。按以下步骤制备粉煤灰基地聚物灌浆料：The raw materials were prepared according to the following components and weight: 20kg of modified water glass, 40kg of fly ash, 5kg of ordinary Portland cement with grade 42.5R, 60kg of quartz sand with a fineness modulus of 2.5, 0.05kg of citric acid, 蓖Sesame oil 0.03kg, hydroxypropyl methyl cellulose ether 0.01kg, water 10kg. Prepare the fly ash base polymer grout as follows:
(1)使用氢氧化钠调整改性水玻璃的模数为1.2，浓度为35％；(1) using sodium hydroxide to adjust the modulus of the modified water glass to 1.2, the concentration is 35%;
(2)将调整好的改性水玻璃与其余原材料混合后搅拌4min，静置1.5min后，再搅拌2.5min即得灌浆料。按照上述方法制备所得灌浆料性能检测结果如下： (2) Mix the modified modified water glass with the rest of the raw materials, stir for 4 minutes, let stand for 1.5 min, and then stir for 2.5 min to obtain the grout. The performance test results of the prepared grout according to the above method are as follows:
Figure PCTCN2017079509-appb-000002
Figure PCTCN2017079509-appb-000002
实施例3Example 3
按以下组分和重量准备原料：碱激发剂20kg、粉煤灰30kg，偏高岭土5kg，标号等级为42.5的普通硅酸盐水泥10kg，细度模数为2.8的石英砂60kg，氯化钡0.05kg，棕榈油0.03kg，羟乙基甲基纤维素醚0.01kg，水10kg。Prepare the raw materials according to the following components and weight: 20kg of alkali activator, 30kg of fly ash, 5kg of metakaolin, 10kg of ordinary Portland cement with grade 42.5, 60kg of quartz sand with fineness modulus of 2.8, strontium chloride 0.05 Kg, palm oil 0.03 kg, hydroxyethyl methyl cellulose ether 0.01 kg, water 10 kg.
按以下步骤制备粉煤灰基地聚物灌浆料：Prepare the fly ash base polymer grout as follows:
(1)使用氢氧化钠调整改性水玻璃的模数为1.2，浓度为35％；(1) using sodium hydroxide to adjust the modulus of the modified water glass to 1.2, the concentration is 35%;
(2)将调整好的改性水玻璃与其余原材料混合后搅拌4min，静置1.5min后，再搅拌2.5min即得灌浆料。(2) Mix the modified modified water glass with the rest of the raw materials, stir for 4 minutes, let stand for 1.5 min, and then stir for 2.5 min to obtain the grout.
按照上述方法制备所得灌浆料性能检测结果如下： The performance test results of the prepared grout according to the above method are as follows:
Figure PCTCN2017079509-appb-000003
Figure PCTCN2017079509-appb-000003
实施例4Example 4
按以下组分和重量准备原料：改性水玻璃30kg、粉煤灰30kg，偏高岭土10kg，标号等级为42.5的普通硅酸盐水泥5kg，细度模数为3.0的石英砂70kg，葡萄糖酸钠0.05kg，油酸0.05kg，羟乙基甲基纤维素醚0.03kg，水10kg；Prepare raw materials according to the following components and weight: 30kg of modified water glass, 30kg of fly ash, 10kg of metakaolin, 5kg of ordinary Portland cement with grade 42.5, 70kg of quartz sand with a fineness modulus of 3.0, sodium gluconate 0.05kg, oleic acid 0.05kg, hydroxyethyl methyl cellulose ether 0.03kg, water 10kg;
按以下步骤制备粉煤灰基地聚物灌浆料：Prepare the fly ash base polymer grout as follows:
(1)使用氢氧化钠调整改性水玻璃的模数为1.4，浓度为40％；(1) using sodium hydroxide to adjust the modulus of the modified water glass to 1.4, the concentration is 40%;
(2)将调整好的改性水玻璃与其余原材料混合后搅拌5min，静置2min后，再搅拌3min即得灌浆料。(2) Mix the modified modified water glass with the rest of the raw materials, stir for 5 minutes, let stand for 2 minutes, and then stir for 3 minutes to obtain the grout.
按照上述方法制备所得灌浆料性能检测结果如下： The performance test results of the prepared grout according to the above method are as follows:
Figure PCTCN2017079509-appb-000004
Figure PCTCN2017079509-appb-000004
实施例5Example 5
按以下组分和重量准备原料：改性水玻璃40kg、粉煤灰50，偏高岭土10kg，细度模数为2.8的天然河砂90kg，柠檬酸0.1kg，蓖麻油0.05kg，羟丙基甲基纤维素醚0.03kg，水30kg。Prepare raw materials according to the following components and weight: modified water glass 40kg, fly ash 50, metakaolin 10kg, natural river sand with a fineness modulus of 2.8 90kg, citric acid 0.1kg, castor oil 0.05kg, hydroxypropyl group The base cellulose ether was 0.03 kg and the water was 30 kg.
按以下步骤制备粉煤灰基地聚物灌浆料：Prepare the fly ash base polymer grout as follows:
(1)使用氢氧化钠调整改性水玻璃的模数为1.4，浓度为40％；(1) using sodium hydroxide to adjust the modulus of the modified water glass to 1.4, the concentration is 40%;
(2)将调整好的改性水玻璃与其余原材料混合后搅拌5min，静置2min后，再搅拌3min即得灌浆料。(2) Mix the modified modified water glass with the rest of the raw materials, stir for 5 minutes, let stand for 2 minutes, and then stir for 3 minutes to obtain the grout.
按照上述方法制备所得灌浆料性能检测结果如下： The performance test results of the prepared grout according to the above method are as follows:
Figure PCTCN2017079509-appb-000005
Figure PCTCN2017079509-appb-000005

Claims (8)

  1. 一种粉煤灰基地聚物灌浆料，其特征在于，按重量份数计，包括以下组分：A fly ash base polymer grout characterized by the following components in parts by weight:
    碱激发剂20～40份、粉煤灰30～50份，偏高岭土0～10份，水泥0～10份，集料60～90份，缓凝剂0.05～0.1份，消泡剂0.03～0.05份，保水增稠剂0.01～0.03份，水10～30份。20-40 parts of alkali activator, 30-50 parts of fly ash, 0-10 parts of metakaolin, 0-10 parts of cement, 60-90 parts of aggregate, 0.05-0.1 parts of retarder, defoamer 0.03-0.05 The water-retaining thickener is 0.01-0.03 parts, and the water is 10-30 parts.
  2. 按照权利要求1所述的粉煤灰基地聚物灌浆料，其特征在于，按重量份数计，包括以下组分：A fly ash base polymer grout according to claim 1, characterized by the following components by weight:
    碱激发剂20份、粉煤灰30份，偏高岭土5份，水泥10份，集料60份，缓凝剂0.05份，消泡剂0.03份，保水增稠剂0.01份，水10份。20 parts of alkali activator, 30 parts of fly ash, 5 parts of metakaolin, 10 parts of cement, 60 parts of aggregate, 0.05 parts of retarder, 0.03 parts of antifoaming agent, 0.01 parts of water-retaining thickener and 10 parts of water.
  3. 按照权利要求1所述的粉煤灰基地聚物灌浆料，其特征在于：所述碱激发剂为改性水玻璃；所述粉煤灰粒径在75μm以下，SiO2、Al2O3、Fe2O3三者合计占72％以上，含钙量低于10％，烧失量低于10％。The fly ash base polymer grout according to claim 1, wherein the alkali activator is modified water glass; the fly ash has a particle size of 75 μm or less, SiO 2 , Al 2 O 3 , The total of Fe 2 O 3 accounts for more than 72%, the calcium content is less than 10%, and the loss on ignition is less than 10%.
  4. 按照权利要求1所述的粉煤灰基地聚物灌浆料，其特征在于：所述偏高岭土由高岭土在800～900℃下煅烧2～3小时制得，主要成分为SiO2和Al2O3；所述水泥为普通硅酸盐水泥，标号为42.5或42.5R等级。The fly ash base polymer grout according to claim 1, wherein the metakaolin is obtained by calcining kaolin at 800 to 900 ° C for 2 to 3 hours, and the main components are SiO 2 and Al 2 O 3 . The cement is ordinary Portland cement, labeled 42.5 or 42.5R grade.
  5. 按照权利要求1所述的粉煤灰基地聚物灌浆料，其特征在于：所述集料为天然河砂或石英砂，细度模数为2.3～3.0；所述缓凝剂为蔗糖、柠檬酸、氯化钡、葡萄糖酸钠中的一种或多种。The fly ash base polymer grout according to claim 1, wherein the aggregate is natural river sand or quartz sand, the fineness modulus is 2.3-3.0; the retarder is sucrose, lemon One or more of acid, barium chloride, and sodium gluconate.
  6. 按照权利要求1所述的粉煤灰基地聚物灌浆料，其特征在于：所述消泡剂选自烷基硅油、醇类、蓖麻油、棕榈油和油酸中的一种或多种；所述保水增稠剂为羟丙基甲基纤维素醚或羟乙基甲基纤维素醚。The fly ash base polymer grout according to claim 1, wherein the antifoaming agent is selected from one or more of alkyl silicone oil, alcohol, castor oil, palm oil and oleic acid; The water retention thickener is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether.
  7. 权利要求1所述的粉煤灰基地聚物灌浆料的制备方法，其特征在于，包括 以下步骤：The method for preparing a fly ash base polymer grout according to claim 1, characterized in that it comprises The following steps:
    (1)使用氢氧化钠调整改性水玻璃的模数为1.0～1.4，浓度为30％～40％；(1) using sodium hydroxide to adjust the modulus of the modified water glass to be 1.0 to 1.4, and the concentration is 30% to 40%;
    (2)将调整好的改性水玻璃与其余原材料混合后搅拌3～5min，静置1～2min后，再搅拌2～3min即得灌浆料。(2) Mix the modified modified water glass with the rest of the raw materials, stir for 3 to 5 minutes, let stand for 1 to 2 minutes, and then stir for 2 to 3 minutes to obtain the grout.
  8. 按照权利要求7所述的制备方法，其特征在于，在步骤(2)中，首次搅拌时间优选为4min，静置时间优选为1.5min，再次搅拌时间优选为2.5min。 The preparation method according to claim 7, wherein in the step (2), the first stirring time is preferably 4 minutes, the standing time is preferably 1.5 minutes, and the stirring time is preferably 2.5 minutes.
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