CN108424063B - High-strength polymer grouting material based on fly ash and preparation method thereof - Google Patents

High-strength polymer grouting material based on fly ash and preparation method thereof Download PDF

Info

Publication number
CN108424063B
CN108424063B CN201810554453.7A CN201810554453A CN108424063B CN 108424063 B CN108424063 B CN 108424063B CN 201810554453 A CN201810554453 A CN 201810554453A CN 108424063 B CN108424063 B CN 108424063B
Authority
CN
China
Prior art keywords
parts
fly ash
grouting
strength
polymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810554453.7A
Other languages
Chinese (zh)
Other versions
CN108424063A (en
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Remac Equipment Information Technology Co Ltd
Original Assignee
Guangdong Remac Equipment Information Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Remac Equipment Information Technology Co Ltd filed Critical Guangdong Remac Equipment Information Technology Co Ltd
Priority to CN201810554453.7A priority Critical patent/CN108424063B/en
Publication of CN108424063A publication Critical patent/CN108424063A/en
Application granted granted Critical
Publication of CN108424063B publication Critical patent/CN108424063B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C04B28/006Compositions 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 mineral polymers, e.g. geopolymers of the Davidovits type
    • 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
    • C04B2201/05Materials having an early high strength, e.g. allowing fast demoulding or formless casting
    • 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
    • C04B2201/52High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

The invention discloses a high-strength polymer grouting material based on fly ash, which comprises the following components in parts by weight: 10-20 parts of alkali activator, 30-45 parts of fly ash, 2-10 parts of silica fume, 1-5 parts of plant ash and sand: 30-45 parts of superfine powder: 1-5 parts of an expanding agent: 0.1-5 parts of defoaming agent: 0.1-0.5 part of water and 3-8 parts of water. The geopolymer high-strength grouting material provided by the invention is prepared by taking active materials such as fly ash, silica fume, plant ash and the like as cementing materials, exciting the activity by an alkali activator, mixing with graded sand, and then using a small amount of expanding agent, defoaming agent and the like in a matching manner. The invention also discloses a preparation method of the coal ash based polymer high-strength grouting material, which is easy and quick to implement, energy-saving and environment-friendly.

Description

High-strength polymer grouting material based on fly ash and preparation method thereof
Technical Field
The invention relates to the technical field of high-performance concrete, in particular to a high-strength polymer grouting material based on fly ash and a preparation method thereof.
Background
With the appearance and development of high-strength and high-performance concrete, the grouting material is not limited to equipment foundation grouting any more due to the appearance of the high-strength grouting material, and can be rapidly expanded to multiple purposes such as building foundation reinforcement, building bar planting, building beam, plate and column reconstruction, sleeve grouting and the like. At present, the widely used high-strength cement-based grouting material is easy to generate microcracks due to the large volume shrinkage of ordinary portland cement, so that the situation of incompact generation is caused under a support seat plate after the support seat is installed, and the cement-based grouting material is slow in strength development and poor in durability, and can directly influence the structural stability and the service life of constructional engineering.
Therefore, the following problems still exist in the current high-strength cement-based grouting material:
(1) the common grouting material takes high-strength cement as a main material, active powder such as silica fume and the like is added to improve the performance, and high-fluidity cement mortar is prepared by matching with auxiliaries such as a high-efficiency water reducing agent, an expanding agent and the like.
(2) For example, the Chinese invention patent publication number: CN105272091A discloses a geopolymer composite grouting material and a preparation and use method thereof, wherein the geopolymer composite grouting material is prepared by taking active materials such as slag, silica fume, fly ash, metakaolin and the like as main materials and alkali excitation. However, the defect of the material is very obvious, the excessive use of the mixed powder material inevitably leads to poor volume stability of the finished product, and secondly, the 28-day strength is only 21.16MPa, which cannot meet the strength requirement of the grouting material.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the high-strength polymer grouting material based on the fly ash, which has the advantages of early strength, quick hardening, high fluidity and micro expansion.
The invention also aims to provide the preparation method of the fly ash-based polymer high-strength grouting material, which is easy and quick to implement, is energy-saving and environment-friendly.
The purpose of the invention is realized as follows:
a high-strength polymer grouting material based on fly ash comprises the following components in parts by weight: 10-20 parts of alkali activator, 30-45 parts of fly ash, 2-10 parts of silica fume, 1-5 parts of plant ash and sand: 30-45 parts of superfine powder: 1-5 parts of an expanding agent: 0.1-5 parts of defoaming agent: 0.1-0.5 part of water and 3-8 parts of water; the polymer high-strength grouting material is prepared by taking active materials such as fly ash, silica fume, plant ash and the like as cementing materials, exciting the activity by an alkali activator, mixing the cementing materials with graded sand, and using a small amount of expanding agent, defoaming agent and the like in a matching manner.
The aim of the invention can also be solved by the following technical measures:
furthermore, the alkali activator is prepared from water glass and caustic soda powder with the modulus of 2.0-2.5 according to the mass ratio of 2:1, the compound activator has the best excitation effect, and the hardening speed is accelerated by increasing the caustic soda content.
Furthermore, the fly ash is C-class I-grade ash, the C-class fly ash has high calcium content, calcium ions can be combined with active silica and aluminum oxide compounds in the fly ash to generate an amorphous hydration product, and finally the hydration product is dehydrated and polymerized to form a polymer with a space network structure, wherein the calcium ions play an important role in electronic balance in a polymer network frame; the silica fume is industrial silica fume with the mesh number of 700-900 meshes and the activity index of more than 95 percent, so that the working performance is improved and the strength is improved.
Furthermore, the plant ash is the residue of the plant after combustion, is in the form of powder, is used as an active excitation material, takes a component containing silicon and aluminum elements as an active component, and improves the excitation effect under the synergistic action of potassium carbonate and a composite exciting agent, and insoluble substances can be used as a filler.
Further, the grain diameter of the sand is less than or equal to 1mm, and the sand is prepared by mixing 20-40 meshes, 40-80 meshes and 200 meshes according to the mass ratio of 9:3:1 in a grading manner, such as: selecting natural river sand with the particle size of less than 1 mm.
Furthermore, the ultrafine powder is 3000-mesh high-white chemical grade talcum powder serving as a filler and mainly playing a role in improving working performance, the expanding agent is a UEA expanding agent which is used for compensating the dry shrinkage of the grouting material and providing micro expansion in the hardening process so as to better play the role of extrusion fastening, and the geopolymer grouting material does not use any cement component, so that the problem of large amount of dry shrinkage is fundamentally avoided, the mixing amount of the expanding agent is greatly reduced compared with the common grouting material, the material cost is further reduced, the defoaming agent is a concrete defoaming agent, and the alkali-resistant concrete defoaming agent is used and is required to have good dispersibility.
Further, the water is tap water.
Another object of the invention is achieved by:
a preparation method of a fly ash based polymer high-strength grouting material comprises the following steps:
preparing the components according to the weight part requirement for later use;
pouring the sand and the ultrafine powder into a stirrer to be stirred for 40-80 seconds, adding the fly ash, the silica fume, the plant ash, the expanding agent and the defoaming agent powder into the stirrer to be continuously stirred for 20-50 seconds, and realizing pre-stirring to prepare a mixture;
and step three, pouring water into the pre-stirred mixture after the pre-stirring, then adding the alkali activator in several times at an interval of 8-15 seconds every time, and continuously stirring for 20-40 seconds after the addition is finished, thus discharging, pouring and molding.
The preparation method of the fly ash-based polymer high-strength grouting material has the advantages of easiness and rapidness in implementation, energy conservation and environmental friendliness.
The other object of the invention can also be solved by the following technical measures:
further, in the first step, the alkali-activator is prepared as follows: preparing 10mol/L sodium hydroxide solution from caustic soda powder and part of water, fully dissolving, standing for 10-30 minutes, then starting stirring, mixing the sodium hydroxide solution and water glass according to the proportion in a period of time before stirring, and uniformly stirring to obtain the required alkali activator.
Further, in the first step, the time period before stirring is 6-15 minutes, and the sodium hydroxide solution and the water glass are mixed according to the proportion and are uniformly stirred to prepare the required alkali activator.
The invention has the following beneficial effects:
(1) the high-strength polymer grouting material based on fly ash is a novel energy-saving and environment-friendly material, does not use cement, is pollution-free, and is energy-saving and environment-friendly.
(2) Furthermore, the polymer high-strength grouting material has the advantages of early strength, quick and stable strength development, excellent durability and the like.
(3) The high-strength polymer grouting material based on the fly ash has the advantages of no shrinkage, micro-expansion, high fluidity and wide application range and scene.
(4) The preparation method of the high-strength grouting material has the advantages of easy and quick implementation, energy conservation and environmental protection.
Detailed Description
A high-strength polymer grouting material based on fly ash comprises the following components in parts by weight: 10-20 parts of alkali activator, 30-45 parts of fly ash, 2-10 parts of silica fume, 1-5 parts of plant ash and sand: 30-45 parts of superfine powder: 1-5 parts of an expanding agent: 0.1-5 parts of defoaming agent: 0.1-0.5 part of water and 3-8 parts of water; the polymer high-strength grouting material is prepared by taking active materials such as fly ash, silica fume, plant ash and the like as cementing materials, exciting the activity by an alkali activator, mixing the cementing materials with graded sand, and using a small amount of expanding agent, defoaming agent and the like in a matching manner.
According to the specific scheme, the alkali activator is prepared from water glass and caustic soda powder with the modulus of 2.0-2.5 according to the mass ratio of 2:1, the composite activator has the best excitation effect, the hardening speed is accelerated by increasing the content of caustic soda, the fly ash is C-class I-grade ash, the C-class fly ash has high calcium content, calcium ions can be combined with active silica and aluminum oxide compounds in the fly ash to generate an amorphous hydration product, and finally the hydration product is dehydrated and polymerized to form a polymer with a space net structure, wherein the calcium ions play an important role in electronic balance in a polymer net rack; the silica fume is industrial grade silica fume, the mesh number of the industrial grade silica fume is 700-900 meshes, the mesh number of the industrial grade silica fume is 800 meshes in the embodiment, the activity index is larger than 95%, and the working performance and the strength are improved.
More specifically, the plant ash is the residue of the plant after combustion, is in a powder shape, is used as an active excitation material, is used as a component containing silicon and aluminum elements, is used as an active component, contains potassium carbonate and a composite exciting agent which have a synergistic effect to improve an excitation effect, can be used as a filler, is used as insoluble substances, has a particle size of less than or equal to 1mm, and is prepared into sand by mixing 20-40 meshes, 40-80 meshes and 200 meshes according to a mass ratio of 9:3:1, for example: selecting natural river sand with the particle size of less than 1 mm.
The ultrafine powder is 3000-mesh high-white chemical grade talcum powder, the talcum powder serves as a filler and mainly plays a role in improving working performance, the expanding agent is a UEA expanding agent, the UEA expanding agent is used for compensating the dry shrinkage of the grouting material and providing micro expansion in the hardening process so as to better play the role of extrusion fastening, and the geopolymer grouting material does not use any cement component, so that the generation of a large amount of dry shrinkage problems is fundamentally avoided. And the water is tap water. The alkali activator used in the invention is prepared by mixing water glass with the modulus of 1.5-2.5 and 10mol/L sodium hydroxide solution, the double-component activator has better excitation effect, and the invention does not limit the use of other single-component or mixed activators, such as: the optional activator also comprises alkaline solution such as potassium hydroxide, sulfate, carbonate, calcium hydroxide, etc., and alkaline activator prepared by mixing the alkaline solution.
The cementing component is prepared by mixing fly ash, silica fume and plant ash in proportion, the mixed cementing component enables the strength development of the material to be faster and more stable, and the dry shrinkage deformation of the material is greatly improved under the condition of not using cement.
The aggregate is prepared by matching graded sand and superfine talcum powder, and the fluidity of the grouting material can be effectively improved through particle grading optimization, and meanwhile, the strength of the grouting material is increased;
the expanding agent can counteract the drying of the material and provide slight expansion in the hardening process so as to better play the role of extrusion fastening; the defoaming agent is mainly used for improving the pore structure of the material, so that the grouting material is more densely filled, and corners and internal large pores are avoided, so that the material structure is more compact, and the mechanical property and the durability of the grouting material are improved comprehensively.
A preparation method of a fly ash based polymer high-strength grouting material comprises the following steps:
preparing the components according to the weight part requirement for later use;
pouring the sand and the ultrafine powder into a stirrer to be stirred for 40-80 seconds, adding the fly ash, the silica fume, the plant ash, the expanding agent and the defoaming agent powder into the stirrer to be continuously stirred for 20-50 seconds, and realizing pre-stirring to prepare a mixture;
and step three, pouring water into the pre-stirred mixture after the pre-stirring, then adding the alkali activator in several times at an interval of 8-15 seconds every time, and continuously stirring for 20-40 seconds after the addition is finished, thus discharging, pouring and molding.
The preparation method of the fly ash-based polymer high-strength grouting material has the advantages of easiness and rapidness in implementation, energy conservation and environmental friendliness.
As a more specific embodiment, in the first step, the alkali-activator is prepared as follows: preparing 10mol/L sodium hydroxide solution from caustic soda powder and part of water, fully dissolving, standing for 10-30 minutes, and then starting stirring for a period of time before stirring, such as: and mixing the sodium hydroxide solution and the water glass according to the proportion and uniformly stirring the mixture for the first 10 minutes of stirring to obtain the required alkali activator.
Through a large number of experiments, the alkali-activating agent is prepared, and the large difference of the excitation effect of different alkali-activating agents on the fly ash is found, when a single-component activating agent is used, the excitation effect of a sodium hydroxide solution is the best, and through the excitation effect test on sodium hydroxide with different concentrations, the excitation rate is rapidly accelerated along with the concentration, but the strength is the best when the concentration is 10 mol/L. The water glass itself is not good as an excitant, but the activity of the fly ash can be greatly improved, and the water glass can react with CO in the air2The reaction forms a precipitate and, therefore, premature exposure to air is not desirable.
The ratio and performance of the fly ash based polymer high-strength grouting material, the common grouting material and the control sample in the embodiment are shown in the following table:
the water reducing agent used by the common grouting material is a polycarboxylic acid powder water reducing agent with the water reducing rate of not less than 25 percent, and the cement is P.O 52.5.5.

Claims (7)

1. The high-strength polymer grouting material based on fly ash is characterized by comprising the following components in parts by weight: 10-20 parts of alkali activator, 30-45 parts of fly ash, 2-10 parts of silica fume, 1-5 parts of plant ash and sand: 30-45 parts of superfine powder: 1-5 parts of an expanding agent: 0.1-5 parts of defoaming agent: 0.1-0.5 part of water and 3-8 parts of water; the plant ash is the residue of the burnt plant and is in a powder shape; the swelling agent is UEA swelling agent; the fly ash is C-class I-grade ash, the silica fume is industrial silica fume, the mesh number of the industrial silica fume is 700-900 meshes, and the activity index is more than 95%.
2. The fly ash based high-strength polymer grouting material as claimed in claim 1, wherein the alkali activator is prepared from water glass and caustic soda powder with a modulus of 2.0-2.5 according to a mass ratio of 2: 1.
3. The fly ash based polymer high-strength grouting material as claimed in claim 1, wherein the grain size of the sand is less than or equal to 1mm, and the sand is prepared by mixing 20-40 meshes, 40-80 meshes and 200 meshes according to a mass ratio of 9:3: 1.
4. The fly ash based high-strength polymer grouting material as claimed in claim 1, wherein the ultrafine powder is 3000-mesh chemical grade talcum powder, and the defoaming agent is a concrete defoaming agent.
5. The fly ash based polymer high strength grouting material of claim 1, wherein the water is tap water.
6. The preparation method of the fly ash based polymer high-strength grouting material as claimed in claim 1, which is characterized by comprising the following steps:
preparing the components according to the weight part requirement for later use;
pouring the sand and the ultrafine powder into a stirrer to be stirred for 40-80 seconds, adding the fly ash, the silica fume, the plant ash, the expanding agent and the defoaming agent powder into the stirrer to be continuously stirred for 20-50 seconds, and realizing pre-stirring to prepare a mixture;
and step three, pouring water into the pre-stirred mixture after the pre-stirring, then adding the alkali activator in several times at an interval of 8-15 seconds every time, and continuously stirring for 20-40 seconds after the addition is finished, thus discharging, pouring and molding.
7. The method for preparing the fly ash based polymer high-strength grouting material as claimed in claim 6, wherein in the first step, the alkali-activator is prepared by the following operations: preparing 10mol/L sodium hydroxide solution from caustic soda powder and part of water, fully dissolving, standing for 10-30 minutes, then starting stirring, mixing the sodium hydroxide solution and water glass according to the proportion in a period of time before stirring, and uniformly stirring to obtain the required alkali activator.
CN201810554453.7A 2018-05-31 2018-05-31 High-strength polymer grouting material based on fly ash and preparation method thereof Active CN108424063B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810554453.7A CN108424063B (en) 2018-05-31 2018-05-31 High-strength polymer grouting material based on fly ash and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810554453.7A CN108424063B (en) 2018-05-31 2018-05-31 High-strength polymer grouting material based on fly ash and preparation method thereof

Publications (2)

Publication Number Publication Date
CN108424063A CN108424063A (en) 2018-08-21
CN108424063B true CN108424063B (en) 2021-07-27

Family

ID=63164214

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810554453.7A Active CN108424063B (en) 2018-05-31 2018-05-31 High-strength polymer grouting material based on fly ash and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108424063B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN110092618A (en) * 2019-06-10 2019-08-06 英达热再生有限公司 A kind of intumescent geo-polymer injecting paste material and preparation method thereof
CN110981350A (en) * 2019-12-19 2020-04-10 苏州国中新材料研究院有限公司 Geopolymer high-strength grouting material and preparation method thereof
CN111646740A (en) * 2020-06-24 2020-09-11 扬州大学 Basalt fiber reinforced geopolymer composite grouting material and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103058615A (en) * 2013-02-06 2013-04-24 长沙聚创建筑科技有限公司 High-fluidity micro-expansive grouting material and testing and preparation method thereof
CN105198330A (en) * 2015-09-10 2015-12-30 北京融达建业建筑工程技术有限公司 Environmental protection and super earlystrength support emergency maintenance grouting material and preparation method thereof
CN107352873A (en) * 2017-08-02 2017-11-17 广东中澳高科新技术服务中心有限公司 Ground polymers grouting material and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103058615A (en) * 2013-02-06 2013-04-24 长沙聚创建筑科技有限公司 High-fluidity micro-expansive grouting material and testing and preparation method thereof
CN105198330A (en) * 2015-09-10 2015-12-30 北京融达建业建筑工程技术有限公司 Environmental protection and super earlystrength support emergency maintenance grouting material and preparation method thereof
CN107352873A (en) * 2017-08-02 2017-11-17 广东中澳高科新技术服务中心有限公司 Ground polymers grouting material and preparation method thereof

Also Published As

Publication number Publication date
CN108424063A (en) 2018-08-21

Similar Documents

Publication Publication Date Title
CN108424063B (en) High-strength polymer grouting material based on fly ash and preparation method thereof
CN106830856A (en) A kind of ungauged regions reinforcing bar sleeve for connection grouting material and preparation method thereof
CN106220115B (en) The gypsum based self-leveling mortar and preparation method thereof prepared using iron tailings fine sand
Parthiban et al. Effect of replacement of slag on the mechanical properties of fly ash based geopolymer concrete
Bakri et al. Comparison of geopolymer fly ash and ordinary portland cement to the strength of concrete
CN102329096B (en) High-early-strength mineral additive for concrete
CN105601135B (en) A method of using red mud and coal ash for manufacturing for geology polymer material
CN105621907A (en) Calcium-base geopolymer and preparation method thereof
CN109455992A (en) A kind of machine-made sand concrete and preparation method thereof
CN108455936A (en) A kind of grouting material and preparation method thereof reinforced for road
CN108341650A (en) A kind of novel dry-mixed plastering mortar and its application
CN110092601B (en) Steel slag-based baking-free slow-release artificial aggregate and preparation method thereof
Rakhimova et al. Individual and combined effects of Portland cement-based hydrated mortar components on alkali-activated slag cement
Huseien et al. Texture, morphology and strength performance of self-compacting alkali-activated concrete: Role of fly ash as GBFS replacement
CN104557124B (en) Lightweight anti-crack concrete and preparation method thereof
CN102030507A (en) Self-compacting micro-expanded steel tube concrete
CN103539416A (en) Special novel shear-resistant mortar for synchronous grouting and preparation method thereof
CN101648803B (en) Powder mortar composite for bubble lightweight concrete
Hot et al. An investigation of CaSi silica fume characteristics and its possible utilization in cement-based and alkali-activated materials
CN110981350A (en) Geopolymer high-strength grouting material and preparation method thereof
CN110922132A (en) Light-weight ultrahigh-strength concrete and preparation method thereof
CN108793862A (en) A kind of high permeable anti-etch concrete in road surface and preparation method
CN108439897A (en) Big fibers content height is prepared using microballon and flows GRC materials and preparation method thereof
Huang et al. Cooperative action and compatibility between Portland cement and MSWI bottom ash alkali-activated double gel system materials
CN110294611B (en) Normal-temperature weak-alkali geopolymer excited cement soil and preparation process thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20190429

Address after: 528300 Guanglong Industrial Park, Chencun Town, Shunde District, Foshan City, Guangdong Province, No. 6, No. 14 Xingye Road

Applicant after: Guangdong Liancheng Housing Equipment Information Technology Co., Ltd.

Address before: 315832 Room 118, No.1 Office Building, Meishan Salt Farm, Beilun District, Ningbo City, Zhejiang Province

Applicant before: Ningbo Liancheng Housing Technology Co., Ltd.

Effective date of registration: 20190429

Address after: 528300 Guanglong Industrial Park, Chencun Town, Shunde District, Foshan City, Guangdong Province, No. 6, No. 14 Xingye Road

Applicant after: Guangdong Liancheng Housing Equipment Information Technology Co., Ltd.

Address before: 315832 Room 118, No.1 Office Building, Meishan Salt Farm, Beilun District, Ningbo City, Zhejiang Province

Applicant before: Ningbo Liancheng Housing Technology Co., Ltd.

GR01 Patent grant
GR01 Patent grant