WO2022022092A1 - 抗震同步注浆材料 - Google Patents

抗震同步注浆材料 Download PDF

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Publication number
WO2022022092A1
WO2022022092A1 PCT/CN2021/099215 CN2021099215W WO2022022092A1 WO 2022022092 A1 WO2022022092 A1 WO 2022022092A1 CN 2021099215 W CN2021099215 W CN 2021099215W WO 2022022092 A1 WO2022022092 A1 WO 2022022092A1
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Prior art keywords
parts
seismic
synchronous grouting
grouting material
water
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PCT/CN2021/099215
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English (en)
French (fr)
Inventor
陈健
李树忱
肖明清
王鹏程
孙文昊
薛光桥
王承震
薛峰
李秀东
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中铁十四局集团有限公司
中铁第四勘察设计院集团有限公司
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Publication of WO2022022092A1 publication Critical patent/WO2022022092A1/zh

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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
    • 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
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, i.e. waterproof or water-repellent 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
    • C04B2111/34Non-shrinking or non-cracking materials
    • C04B2111/343Crack resistant 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

Definitions

  • the invention relates to the technical field of anti-seismic materials, in particular to an anti-seismic synchronous grouting material.
  • the most commonly used synchronous grouting in shield tunnel construction in my country includes synchronous single-liquid grouting and double-liquid grouting.
  • the synchronous single-injection slurry is mainly ordinary cement mortar. Double-liquid grouting is to pump the A and B slurries through two pipes, mix them in the shield tail grouting hole and inject them into the shield tail gap.
  • the A slurry is a cement-based material
  • the B slurry is usually a water glass material as a hardener.
  • the gelling time of the mixed slurry is generally within 1min, and it has high early strength, and the strength can reach 0.1-0.5MPa in 1 hour.
  • single-liquid synchronous grouting is mainly used for shield construction. Seismic aspects have not been considered or studied, and there are major defects.
  • the existing synchronous grouting material has small deformation ability after curing, and does not have the ability to resist impact load. In the event of earthquake disaster, the post-grouting structural system of the segment wall is easily cracked and deformed due to the lack of buffer protection, and groundwater infiltration occurs, and it is easy to cause destructive effects on the segment structure.
  • the main purpose of the present invention is to provide an anti-seismic synchronous grouting material, so as to solve the problem that the synchronous grouting material in the prior art has small deformation capacity after solidification and does not have the ability to resist impact loads.
  • a seismic synchronous grouting material which comprises water, cement, fly ash, aggregate, plasticizer and toughening agent, wherein the toughening agent is emulsified asphalt, Acrylates and/or epoxy resins, aggregates are sand and/or vitrified beads.
  • the seismic synchronous grouting material includes 80-400 parts of water, 70-90 parts of cement, 140-300 parts of fly ash, 390-800 parts of aggregate, 0.5-10 parts of Plasticizer and 0.7 to 350 parts of toughening agent.
  • the anti-seismic synchronous grouting material further includes 0.5-3 parts of tensile crack-resistant fibers.
  • the tensile crack-resistant fibers are one or more of polypropylene fibers, PE fibers, polyvinyl alcohol fibers, and alkali-resistant glass fibers.
  • the seismic synchronous grouting material also includes 45-130 parts of special soil.
  • specialty soil is bentonite and/or red clay.
  • the plasticizer is one or more of a naphthalene-based water-reducing agent, a polycarboxylic acid-based water-reducing agent, a melamine-based water-reducing agent, and a sulfamic acid-based water-reducing agent.
  • the emulsified asphalt is one or more of anionic emulsified asphalt, cationic emulsified asphalt and nonionic emulsified asphalt.
  • the toughening agent is acrylate
  • the aggregate is vitrified microbeads
  • the special soil is bentonite
  • the seismic synchronous grouting material includes 350-364 parts of water, 70-84 parts of cement, 217 parts of ⁇ 231 parts of fly ash, 392 ⁇ 406 parts of vitrified microbeads, 0.7 ⁇ 1.4 parts of plasticizer, 0.7 ⁇ 1.4 parts of acrylate and 49 ⁇ 56 parts of bentonite.
  • the toughening agent is emulsified asphalt
  • the tensile crack-resistant fiber is polypropylene fiber
  • the seismic synchronous grouting material includes 84-105 parts of water, 70-84 parts of cement, and 217-231 parts of powder. Coal ash, 777-791 parts of aggregate, 0.7-1.4 parts of plasticizer, 280-350 parts of emulsified pitch and 0.7-1.4 parts of polypropylene fiber.
  • the invention provides a single-liquid anti-seismic synchronous grouting material, which has low strength and low elastic modulus after solidification, so that the deformation capacity of the material is significantly improved, so that when an earthquake disaster occurs, it can effectively absorb energy and become a segment of a segment.
  • the synchronous grouting material in the prior art has small deformation ability after curing, and does not have the ability to resist impact load.
  • the present invention provides an anti-seismic synchronous grouting material, which includes water, cement, fly ash, aggregate, plasticizer and toughening agent, and the toughening agent is emulsified asphalt, acrylate and/or Epoxy resin, aggregates are sand and/or vitrified beads.
  • the invention provides a single-liquid anti-seismic synchronous grouting material.
  • the material is additionally added with a plasticizer and a toughening agent, especially emulsified asphalt.
  • a toughening agent on the one hand, it can regulate the elastic modulus and impact resistance of the material after curing; pulp structure.
  • the material has low strength and low elastic modulus after curing, which makes the deformation ability of the material significantly improved, so that in the event of an earthquake disaster, it can effectively absorb energy and provide buffers for the segment, so as to prevent cracks, seepage, and shock;
  • the material can also effectively fill the gaps of the segment, and play the due role of anti-seepage and anti-settling during tunnel construction.
  • each suspended emulsified asphalt droplet is a small droplet.
  • Elastomers so the shock resistance of the material can be significantly improved.
  • the vitrified microspheres in the aggregate can also significantly improve the shock resistance of the material.
  • the size of the vitrified microbeads is 0.5-2 mm.
  • the above-mentioned seismic synchronous grouting material in parts by weight includes 80-400 parts of water, 70-90 parts of water Cement, 140-300 parts of fly ash, 390-800 parts of aggregate, 0.5-10 parts of plasticizer and 0.7-350 parts of toughening agent.
  • the dosage relationship of each component is controlled within the above range, and the grouting material has better fluidity, curability and compactness, as well as better impact resistance and water seepage resistance.
  • the anti-seismic synchronous grouting material further comprises 0.5-3 parts of tensile crack-resistant fibers.
  • Adding tensile cracking fiber can further improve the tensile cracking resistance of the grouting structure, so that it has a better buffering effect under the action of external force, and the grouting structure can withstand higher impact force.
  • the above-mentioned tensile crack-resistant fibers are one or more of polypropylene fibers, PE fibers (ultra-high molecular weight polyethylene fibers), polyvinyl alcohol fibers, and alkali-resistant glass fibers.
  • PE fibers ultra-high molecular weight polyethylene fibers
  • polyvinyl alcohol fibers polyvinyl alcohol fibers
  • alkali-resistant glass fibers alkali-resistant glass fibers.
  • the fiber itself is also easy to disperse in the mortar, and has a good mutual bonding effect with the cement.
  • the seismic synchronous grouting material further includes 45-130 parts by weight of special soil.
  • special soil can further reduce the modulus of the mortar after consolidation, so that the synchronous grouting layer has better deformation ability after curing, and thus has an anti-seismic effect.
  • Preferred specialty clays are bentonite and/or red clay. Adding these special soils and controlling their content within the above range is beneficial to further improve the workability and pumping performance of the grouting structure.
  • the above aggregates are sand and/or vitrified microbeads.
  • the above-mentioned plasticizer preferably adopts one or more of naphthalene-based water-reducing agent, polycarboxylic acid-based water-reducing agent, melamine-based water-reducing agent, and sulfamic acid-based water-reducing agent.
  • the above accumulation water reducing agents are all commercially available types.
  • the emulsified asphalt is one or more of anionic emulsified asphalt, cationic emulsified asphalt and nonionic emulsified asphalt.
  • the inventor further optimized the component distribution ratio and component type, as follows:
  • the toughening agent is acrylate
  • the aggregate is vitrified microbeads
  • the special soil is bentonite
  • the seismic synchronous grouting material includes 350-364 parts of water, 70-84 parts of water cement, 217-231 parts of fly ash, 392-406 parts of vitrified microbeads, 0.7-1.4 parts of plasticizer, 0.7-1.4 parts of acrylate and 49-56 parts of bentonite.
  • the toughening agent is emulsified asphalt
  • the tensile crack-resistant fiber is polypropylene fiber
  • the seismic synchronous grouting material includes 84-105 parts of water, 70-84 parts of cement, 217 parts of ⁇ 231 parts of fly ash, 777 ⁇ 791 parts of aggregate, 0.7 ⁇ 1.4 parts of plasticizer, 280 ⁇ 350 parts of emulsified asphalt and 0.7 ⁇ 1.4 parts of polypropylene fiber.
  • the above-mentioned grouting material provided by the present invention can be prepared according to a common method in the field. Preferably, the following process can be used to prepare:
  • Feed materials into the synchronous grouting mixer in the following order: aggregate, cement, fly ash, optional special soil, and stand by after feeding.
  • the remaining materials such as water, toughening agent and plasticizer are put into the mixer with dispersing and stirring rotor in turn. After mixing uniformly, the liquid mixture is poured into the previous synchronous grouting mixer and stirred until uniform, so as to prepare the anti-seismic synchronous grouting material of the present invention.
  • the uniformly stirred liquid mixture is added to the synchronous grouting mixer, and the seismic synchronous grouting material is prepared after uniform stirring.
  • the uniformly stirred liquid mixture is added to the synchronous grouting mixer, and the seismic synchronous grouting material is prepared after uniform stirring.
  • the uniformly stirred liquid mixture is added to the synchronous grouting mixer, and the seismic synchronous grouting material is prepared after uniform stirring.
  • the uniformly stirred liquid mixture is added to the synchronous grouting mixer, and the seismic synchronous grouting material is prepared after uniform stirring.
  • the uniformly stirred liquid mixture is added to the synchronous grouting mixer, and the seismic synchronous grouting material is prepared after uniform stirring.
  • the uniformly stirred liquid mixture is added to the synchronous grouting mixer, and the seismic synchronous grouting material is prepared after uniform stirring.
  • the uniformly stirred liquid mixture is added to the synchronous grouting mixer, and the seismic synchronous grouting material is prepared after uniform stirring.
  • the uniformly stirred liquid mixture is added to the synchronous grouting mixer, and the seismic synchronous grouting material is prepared after uniform stirring.
  • the uniformly stirred liquid mixture is added to the synchronous grouting mixer, and the seismic synchronous grouting material is prepared after uniform stirring.
  • Example 1 excellent 5% 4000 300
  • Example 2 excellent 4% 4500 300
  • Example 3 excellent 3% 5000 300
  • Example 4 good 4% 3000 250
  • Example 5 good 4% 3500 200
  • Example 6 excellent 4% 4000 250
  • Example 7 excellent 3% 4500 200
  • Example 8 good 4% 3500 300 Comparative Example 1 middle 6% 2000 600

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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)

Abstract

本发明提供了一种抗震同步注浆材料。该材料包括水、水泥、粉煤灰、集料、塑化剂及增韧剂,增韧剂为乳化沥青、丙烯酸酯和/或环氧树脂,集料为砂和/或玻化微珠。该材料固化后强度低、弹性模量低,使得材料的变形能力显著提高,从而在地震灾害发生时,可有效吸收能量,为管片提供缓冲,从而起到防裂防渗抗震作用;另外,该材料还能够有效的填充管片空隙,在隧道建设期间起到应有的防渗及抗沉降作用。

Description

抗震同步注浆材料 技术领域
本发明涉及抗震材料技术领域,具体而言,涉及一种抗震同步注浆材料。
背景技术
我国盾构隧道施工中目前用的最多的同步注浆包括同步注单液浆和双液注浆。同步注单液浆主要为普通水泥砂浆。双液注浆是将A、B浆液由两根管道泵送,在盾尾注浆孔混合并注入盾尾间隙中,A浆液为水泥基材料,B浆液通常是水玻璃类材料作为硬化剂,混合后的浆液胶凝时间一般在1min以内,而且具有较高的早期强度,1小时强度可以达到0.1~0.5MPa。
由于双液注浆凝结时间短易导致管片壁后出现空洞,填充不密实现象,因此盾构施工多以单液同步注浆填充为主,然而当前使用的同步注浆材料在防渗防裂抗震方面均未考虑或研究,且存在较大缺陷。现有同步注浆材料固化后变形能力小,不具备抵抗冲击荷载的能力。在遭受地震灾害时,管片壁后注浆结构体系由于没有缓冲保护作用而极容易开裂变形,出现地下水渗透,且极易对管片结构造成破坏性影响。
发明内容
本发明的主要目的在于提供一种抗震同步注浆材料,以解决现有技术中同步注浆材料固化后变形能力小,不具备抵抗冲击荷载能力的问题。
为了实现上述目的,根据本发明的一个方面,提供了一种抗震同步注浆材料,其包括水、水泥、粉煤灰、集料、塑化剂及增韧剂,增韧剂为乳化沥青、丙烯酸酯和/或环氧树脂,集料为砂和/或玻化微珠。
进一步地,按重量份计,抗震同步注浆材料包括80~400份的水、70~90份的水泥、140~300份的粉煤灰、390~800份的集料、0.5~10份的塑化剂及0.7~350份的增韧剂。
进一步地,按重量份计,抗震同步注浆材料还包括0.5~3份的抗拉裂纤维。
进一步地,抗拉裂纤维为聚丙烯纤维、PE纤维、聚乙烯醇纤维、耐碱玻璃纤维中的一种或多种。
进一步地,按重量份计,抗震同步注浆材料还包括45~130份的特种土。
进一步地,特种土为膨润土和/或红粘土。
进一步地,塑化剂为萘系减水剂、聚羧酸系减水剂、三聚氰胺系减水剂、氨基磺酸系减水剂中的一种或多种。
进一步地,乳化沥青为阴离子型乳化沥青、阳离子型乳化沥青及非离子型乳化沥青中的一种或多种。
进一步地,增韧剂为丙烯酸酯,集料为玻化微珠,且特种土为膨润土;按重量份计,抗震同步注浆材料包括350~364份的水、70~84份的水泥、217~231份的粉煤灰、392~406份的玻化微珠、0.7~1.4份的塑化剂、0.7~1.4份的丙烯酸酯及49~56份的膨润土。
进一步地,增韧剂为乳化沥青,抗拉裂纤维为聚丙烯纤维;按重量份计,抗震同步注浆材料包括84~105份的水、70~84份的水泥、217~231份的粉煤灰、777~791份的集料、0.7~1.4份的塑化剂、280~350份的乳化沥青及0.7~1.4份的聚丙烯纤维。
本发明提供的是一种单液抗震同步注浆材料,该材料固化后强度低、弹性模量低,使得材料的变形能力显著提高,从而在地震灾害发生时,可有效吸收能量,为管片提供缓冲,从而起到防裂防渗抗震作用;另外,该材料还能够有效的填充管片空隙,在隧道建设期间起到应有的防渗及抗沉降作用。
具体实施方式
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。下面将结合实施例来详细说明本发明。
正如背景技术部分所描述的,现有技术中的同步注浆材料固化后变形能力小,不具备抵抗冲击荷载的能力。
为了解决上述问题,本发明提供了一种抗震同步注浆材料,其包括水、水泥、粉煤灰、集料、塑化剂及增韧剂,增韧剂为乳化沥青、丙烯酸酯和/或环氧树脂,集料为砂和/或玻化微珠。
本发明提供的是一种单液抗震同步注浆材料,该材料中除了水、水泥、粉煤灰、集料等组分外,额外添加了塑化剂和增韧剂,尤其是以乳化沥青、丙烯酸酯等作为增韧剂,一方面能够调控材料固化后的弹性模量和抗冲击性能,一方面各组分之间也具有良好的分散性,能够形成较为密实、泌水性较好的注浆结构。总之,该材料固化后强度低、弹性模量低,使得材料的变形能力显著提高,从而在地震灾害发生时,可有效吸收能量,为管片提供缓冲,从而起到防裂防渗抗震作用;另外,该材料还能够有效的填充管片空隙,在隧道建设期间起到应有的防渗及抗沉降作用。
此处需要说明的是,上述乳化沥青不仅能够起到增韧作用,其是以悬浊液滴形式在浆液中存在,待浆液固化后,每个悬浊乳化沥青液滴都是一个小小的弹性体,因此可以显著提升材料的抗震性。且集料中的玻化微珠也能够显著提升材料的抗震性。优选地,玻化微珠的尺寸为0.5~2mm。
为了使注浆材料的各方面性能更加平衡,综合性能进一步提高,在一种优选的实施方式中,上述按重量份计,抗震同步注浆材料包括80~400份的水、70~90份的水泥、140~300份的粉煤灰、390~800份的集料、0.5~10份的塑化剂及0.7~350份的增韧剂。将各组分的用量关系控制在上述范围内,注浆材料在具有较好流动性、固化性、密实性的同时,兼具更好的抗冲击性能、防渗水性能。
在一种优选的实施方式中,按重量份计,抗震同步注浆材料还包括0.5~3份的抗拉裂纤维。加入抗拉裂纤维能够进一步改善注浆结构的抗拉裂性能,使其在外力的作用下具有更好的缓冲作用,是注浆结构能够承受更高的冲击力。优选地,上述抗拉裂纤维为聚丙烯纤维、PE纤维(超高分子量聚乙烯纤维)、聚乙烯醇纤维、耐碱玻璃纤维中的一种或多种。除了具有良好的抗拉裂和抗弯性能,还能提高混凝土的耐腐蚀性能。此外,纤维自身也易于分散在砂浆中,并和水泥有较好的相互粘接作用。
在一种优选的实施方式中,按重量份计,抗震同步注浆材料还包括45~130份的特种土。加入特种土,可以进一步降低砂浆固结后的模量,使得同步注浆层固化后还具备更好的变形能力,从而具有抗震作用。优选特种土为膨润土和/或红粘土。加入这些特种土,并将其含量控制在上述范围内,有利于进一步提高注浆结构的和易性和泵送性能。
优选地,上述集料为砂和/或玻化微珠。上述塑化剂优选采用萘系减水剂、聚羧酸系减水剂、三聚氰胺系减水剂、氨基磺酸系减水剂中的一种或多种。上述积累减水剂均为市售类型。
在一种优选的实施方式中,乳化沥青为阴离子型乳化沥青、阳离子型乳化沥青及非离子型乳化沥青中的一种或多种。
为了进一步提高注浆材料的综合性能,发明人进一步优化了组分配比和组分类型,具体如下:
在一种实施方式中,增韧剂为丙烯酸酯,集料为玻化微珠,且特种土为膨润土;按重量份计,抗震同步注浆材料包括350~364份的水、70~84份的水泥、217~231份的粉煤灰、392~406份的玻化微珠、0.7~1.4份的塑化剂、0.7~1.4份的丙烯酸酯及49~56份的膨润土。
在另一种实施方式中,增韧剂为乳化沥青,抗拉裂纤维为聚丙烯纤维;按重量份计,抗震同步注浆材料包括84~105份的水、70~84份的水泥、217~231份的粉煤灰、777~791份的集料、0.7~1.4份的塑化剂、280~350份的乳化沥青及0.7~1.4份的聚丙烯纤维。
本发明提供的上述注浆材料按照本领域的常用方式进行制备即可,优选地,可以采用下述工艺进行制备:
按照以下顺序向同步注浆搅拌机中投料:集料、水泥、粉煤灰、可选的特种土,投料后待用。将水、增韧剂、塑化剂等剩余材料依次投入带有分散搅拌转子的搅拌机中,搅拌机保持低速搅拌,然后以非常缓慢的速度投入纤维,保证纤维分散均匀。混合均匀后将液态混合物倒入之前的同步注浆搅拌机中搅拌至均匀,制得本发明所述的抗震同步注浆材料。
以下结合具体实施例对本申请作进一步详细描述,这些实施例不能理解为限制本申请所要求保护的范围。
实施例1
依次将水100份、阳离子型乳化沥青300份、萘系减水剂1.2份加入带有分散搅拌转子的搅拌机中,保持低速搅拌状态,然后将聚丙烯纤维1.3份缓慢均匀的投入搅拌机中,使纤维分散均匀,搅拌均匀制得液态混合物备用。
依次将水泥80份、粉煤灰220份、砂350份、玻化微珠450份、红粘土50份加入同步注浆搅拌机。
将搅拌均匀的液态混合物加入同步注浆搅拌机,搅拌均匀后制得抗震同步注浆材料。
实施例2
依次将水84份、阳离子型乳化沥青280份、萘系减水剂0.7份加入带有分散搅拌转子的搅拌机中,保持低速搅拌状态,然后将聚丙烯纤维0.7份缓慢均匀的投入搅拌机中,使纤维分散均匀,搅拌均匀制得液态混合物备用。
依次将水泥70份、粉煤灰17份、砂377份、玻化微珠400份、红粘土45份加入同步注浆搅拌机。
将搅拌均匀的液态混合物加入同步注浆搅拌机,搅拌均匀后制得抗震同步注浆材料。
实施例3
依次将水105份、阳离子型乳化沥青350份、萘系减水剂1.4份加入带有分散搅拌转子的搅拌机中,保持低速搅拌状态,然后将聚丙烯纤维1.4份缓慢均匀的投入搅拌机中,使纤维分散均匀,搅拌均匀制得液态混合物备用。
依次将水泥84份、粉煤灰231份、砂391份、玻化微珠400份、红粘土130份加入同步注浆搅拌机。
将搅拌均匀的液态混合物加入同步注浆搅拌机,搅拌均匀后制得抗震同步注浆材料。
实施例4
依次将水400份、阳离子型乳化沥青350份、萘系减水剂10份加入带有分散搅拌转子的搅拌机中,保持低速搅拌状态,然后将聚丙烯纤维3份缓慢均匀的投入搅拌机中,使纤维分散均匀,搅拌均匀制得液态混合物备用。
依次将水泥90份、粉煤灰300份、砂500份、玻化微珠300份、红粘土135份加入同步注浆搅拌机。
将搅拌均匀的液态混合物加入同步注浆搅拌机,搅拌均匀后制得抗震同步注浆材料。
实施例5
依次将水300份、阳离子型乳化沥青300份、萘系减水剂5份加入带有分散搅拌转子的搅拌机中,保持低速搅拌状态,然后将聚丙烯纤维2份缓慢均匀的投入搅拌机中,使纤维分散均匀,搅拌均匀制得液态混合物备用。
依次将水泥90份、粉煤灰210份、砂200份、玻化微珠200份、红粘土50份加入同步注浆搅拌机。
将搅拌均匀的液态混合物加入同步注浆搅拌机,搅拌均匀后制得抗震同步注浆材料。
实施例6
依次将水350份、丙烯酸酯0.7份、聚羧酸系减水剂1.4份加入带有分散搅拌转子的搅拌机中,保持低速搅拌状态,搅拌均匀制得液态混合物备用。
依次将水泥84份、粉煤灰217份、玻化微珠392份、膨润土56份加入同步注浆搅拌机。
将搅拌均匀的液态混合物加入同步注浆搅拌机,搅拌均匀后制得抗震同步注浆材料。
实施例7
依次将水364份、丙烯酸酯1.4份、聚羧酸系减水剂0.7份加入带有分散搅拌转子的搅拌机中,保持低速搅拌状态,搅拌均匀制得液态混合物备用。
依次将水泥70份、粉煤灰231份、玻化微珠406份、膨润土49份加入同步注浆搅拌机。
将搅拌均匀的液态混合物加入同步注浆搅拌机,搅拌均匀后制得抗震同步注浆材料。
实施例8
依次将水80份、丙烯酸酯0.7份、聚羧酸系减水剂0.5份加入带有分散搅拌转子的搅拌机中,保持低速搅拌状态,搅拌均匀制得液态混合物备用。
依次将水泥90份、粉煤灰140份、玻化微珠390份、膨润土40份加入同步注浆搅拌机。
将搅拌均匀的液态混合物加入同步注浆搅拌机,搅拌均匀后制得抗震同步注浆材料。
对比例1
依次将水300份、萘系减水剂5份加入带有分散搅拌转子的搅拌机中,保持低速搅拌状态,然后将聚丙烯纤维2份缓慢均匀的投入搅拌机中,保证纤维分散均匀,搅拌均匀制得液态混合物备用。
依次将水泥90份、粉煤灰210份、砂400份、红粘土50份加入同步注浆搅拌机。
将搅拌均匀的液态混合物加入同步注浆搅拌机,搅拌均匀后制得抗震同步注浆材料。
性能表征结果见表1:
表1
项目名称 可注性 泌水率% 抗冲击性J/M 2 弹性模量MPa
实施例1 5% 4000 300
实施例2 4% 4500 300
实施例3 3% 5000 300
实施例4 4% 3000 250
实施例5 4% 3500 200
实施例6 4% 4000 250
实施例7 3% 4500 200
实施例8 4% 3500 300
对比例1 6% 2000 600
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种抗震同步注浆材料,其特征在于,包括水、水泥、粉煤灰、集料、塑化剂及增韧剂,所述增韧剂为乳化沥青、丙烯酸酯和/或环氧树脂,所述集料为砂和/或玻化微珠。
  2. 根据权利要求1所述的抗震同步注浆材料,其特征在于,按重量份计,所述抗震同步注浆材料包括80~400份的所述水、70~90份的所述水泥、140~300份的所述粉煤灰、390~800份的所述集料、0.5~10份的所述塑化剂及0.7~350份的所述增韧剂。
  3. 根据权利要求2所述的抗震同步注浆材料,其特征在于,按重量份计,所述抗震同步注浆材料还包括0.5~3份的抗拉裂纤维。
  4. 根据权利要求3所述的抗震同步注浆材料,其特征在于,所述抗拉裂纤维为聚丙烯纤维、PE纤维、聚乙烯醇纤维、耐碱玻璃纤维中的一种或多种。
  5. 根据权利要求1至4中任一项所述的抗震同步注浆材料,其特征在于,按重量份计,所述抗震同步注浆材料还包括45~130份的特种土。
  6. 根据权利要求1至4中任一项所述的抗震同步注浆材料,其特征在于,所述特种土为膨润土和/或红粘土。
  7. 根据权利要求1至4中任一项所述的抗震同步注浆材料,其特征在于,所述塑化剂为萘系减水剂、聚羧酸系减水剂、三聚氰胺系减水剂、氨基磺酸系减水剂中的一种或多种。
  8. 根据权利要求1至4中任一项所述的抗震同步注浆材料,其特征在于,所述乳化沥青为阴离子型乳化沥青、阳离子型乳化沥青及非离子型乳化沥青中的一种或多种。
  9. 根据权利要求5所述的抗震同步注浆材料,其特征在于,所述增韧剂为所述丙烯酸酯,所述集料为玻化微珠,且所述特种土为所述膨润土;按重量份计,所述抗震同步注浆材料包括350~364份的所述水、70~84份的所述水泥、217~231份的所述粉煤灰、392~406份的所述玻化微珠、0.7~1.4份的所述塑化剂、0.7~1.4份的所述丙烯酸酯及49~56份的所述膨润土。
  10. 根据权利要求4所述的抗震同步注浆材料,其特征在于,所述增韧剂为所述乳化沥青,所述抗拉裂纤维为所述聚丙烯纤维;按重量份计,所述抗震同步注浆材料包括84~105份的所述水、70~84份的所述水泥、217~231份的所述粉煤灰、777~791份的所述集料、0.7~1.4份的所述塑化剂、280~350份的所述乳化沥青及0.7~1.4份的所述聚丙烯纤维。
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