CN115124314A - Sprayed concrete and preparation method thereof - Google Patents

Sprayed concrete and preparation method thereof Download PDF

Info

Publication number
CN115124314A
CN115124314A CN202210741938.3A CN202210741938A CN115124314A CN 115124314 A CN115124314 A CN 115124314A CN 202210741938 A CN202210741938 A CN 202210741938A CN 115124314 A CN115124314 A CN 115124314A
Authority
CN
China
Prior art keywords
parts
shotcrete
stones
sand
sulphoaluminate cement
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.)
Pending
Application number
CN202210741938.3A
Other languages
Chinese (zh)
Inventor
李文进
陈雪梅
杨欢
喻庆华
周严洪
张宇航
张凌志
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.)
Jiahua Special Cement Co ltd
Original Assignee
Jiahua Special Cement 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 Jiahua Special Cement Co ltd filed Critical Jiahua Special Cement Co ltd
Priority to CN202210741938.3A priority Critical patent/CN115124314A/en
Publication of CN115124314A publication Critical patent/CN115124314A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C04B28/14—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 calcium sulfate 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
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00146—Sprayable or pumpable mixtures
    • C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
    • 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
    • C04B2201/05—Materials having an early high strength, e.g. allowing fast demoulding or formless casting
    • 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

Landscapes

  • 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)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

The invention discloses sprayed concrete and a preparation method thereof, and belongs to the technical field of building engineering materials. The sprayed concrete comprises the following raw materials in parts by weight: 16-20 parts of sulphoaluminate cement; 2-6 parts of modified gypsum; 1-3 parts of a blending material; 38-44 parts of sand; 32-38 parts of stones; 0.15-0.3 part of a water reducing agent; 8-12 parts of water. The calcination temperature of the sulphoaluminate cement selected by the invention is 200 ℃ lower than that of common Portland cement, the energy consumption is low, the carbon dioxide emission is less, and the raw material selection range is wide. Therefore, the sprayed concrete prepared from the sulphoaluminate cement is green and environment-friendly, has certain economic advantages, effectively reduces the production cost, and is beneficial to environmental protection and energy conservation of enterprises. In addition, the setting time of the sprayed concrete is controlled by adding the modified gypsum, the use is convenient, and the alkali-containing setting accelerator harmful to human bodies is not added, so that the concrete has the advantages of early strength, good durability and usability, high later strength increase rate and the like.

Description

Sprayed concrete and preparation method thereof
Technical Field
The invention belongs to the technical field of building engineering materials, and particularly relates to sprayed concrete and a preparation method thereof.
Background
The sprayed concrete is a kind of concrete which is made up by using compressed air or other power to spray the concrete mixture in a certain mixing ratio onto the sprayed surface at high speed by means of spraying machine. The sprayed concrete is widely applied to tunnels, coal mine roadways, revetments and repair projects due to the advantages of high construction speed, simple process (no need of vibration, no need of or only use of a single-side template) and flexible construction operation mode (thin-walled or irregular-shaped structures can be manufactured in any direction in high-altitude, deep pits or narrow working areas). Wet sprayed concrete is a development trend of sprayed concrete due to the superiorities of reducing dust concentration, facilitating centralized production, controlling quality and the like.
At present, the basic formula of sprayed concrete in China is as follows: adding an accelerator into portland cement or ordinary portland cement, wherein concrete conditions are as follows: sand: stone 1: 2: 2, the using amount of the accelerator is 4-5% of that of the cement. The 28-day compressive strength is 15-20 MPa (C20 grade), and the flexural strength is about 7 MPa. The setting accelerator is adopted in the basic formula to shorten the setting and hardening time of the concrete, and the alkali added in the setting accelerator is contacted with the active aggregate, so that the reaction is likely to occur, and the durability and the usability of the concrete are seriously damaged. Meanwhile, the part where the human body is connected with the alkali is corroded. Related researches find that the use of the alkaline accelerating agent damages the respiratory system of operators and also has the effect of corroding skin, eyes and the like.
Therefore, providing a special cementing material system for shotcrete, which realizes the synergistic improvement of coagulation hardening, early mechanical properties and later durability of shotcrete under the condition of low doping amount of alkali-free setting accelerator or no addition of the setting accelerator, is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides sprayed concrete and a preparation method thereof, and solves the prior technical problems.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the sprayed concrete comprises the following raw materials in parts by weight:
sulphoaluminate cement: 16-20 parts of a solvent;
modified gypsum: 2-6 parts;
blending material: 1-3 parts;
sand: 38-44 parts;
stone: 32-38 parts;
water reducing agent: 0.15-0.3 part;
water: 8-12 parts.
Further, the sulphoaluminate cement comprises the following raw materials in percentage by mass:
calcium sulfoaluminate: 38-45 wt.%;
dicalcium silicate: 38-45 wt.%;
calcium sulfate: 2-6 wt. -%)
Tricalcium aluminate: 2-6 wt. -%)
Tetracalcium aluminoferrite: 1 to 4 wt.%.
Further, the specific surface area of the sulphoaluminate cement is 300-400 m 2 /kg。
Further, the specific surface area of the modified gypsum is 300-400 m 2 /kg。
Further, the specific surface area of the admixture is 200-300 m 2 /kg。
Further, the sand comprises machine-made sand and natural river sand, and the mass ratio of the machine-made sand to the natural river sand is 2-2.5: 1.
Furthermore, the stones comprise big stones and small stones, the mass ratio of the big stones to the small stones is 3-4: 1, the particle size of the big stones is 10-20 mm, and the particle size of the small stones is 2-5 mm.
Further, the water reducing agent is a polycarboxylic acid high-performance water reducing agent.
A preparation method of shotcrete comprises the following steps:
s1, mixing sulphoaluminate cement and modified gypsum uniformly for later use;
s2, weighing the rest raw materials in proportion, placing the raw materials into a container, adding water, and stirring to obtain the finished product.
Further, the stirring time of the S2 is 1 to 3 minutes.
Compared with the prior art, the invention has the following beneficial effects:
the sprayed concrete on the market at present usually adopts portland cement or ordinary portland cement with an accelerator added. The calcination temperature of the sulphoaluminate cement selected by the invention is 200 ℃ lower than that of common Portland cement, the energy consumption is low (the cost is low), the carbon dioxide emission is less, and the raw material selection range is wide. Therefore, the sprayed concrete prepared from the sulphoaluminate cement is green and environment-friendly, has certain economic advantages, effectively reduces the production cost, and is beneficial to environmental protection and energy conservation of enterprises. In addition, the setting time of the sprayed concrete is controlled by adding the modified gypsum, the use is convenient, and the alkali-containing setting accelerator harmful to human bodies is not added, so that the concrete has the advantages of early strength, good durability and usability, high later strength increase rate and the like.
Detailed Description
The present invention will be described in further detail in order to make the objects, technical solutions and advantages of the present invention more apparent. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The sprayed concrete comprises the following raw materials in parts by weight:
sulphoaluminate cement: 16-20 parts of a solvent;
modified gypsum: 2-6 parts;
blending material: 1-3 parts;
sand: 38-44 parts;
stone: 32-38 parts of a solvent;
water reducing agent: 0.15-0.3 part;
water: 8-12 parts.
In some embodiments of the present invention, the sulphoaluminate cement comprises the following raw materials by mass:
calcium sulfoaluminate: 38-45 wt.%;
dicalcium silicate: 38-45 wt.%;
calcium sulfate: 2-6 wt. -%)
Tricalcium aluminate: 2-6 wt. -%)
Tetracalcium aluminoferrite: 1 to 4 wt.%.
In some embodiments of the present invention, the specific surface area of the sulphoaluminate cement is 300 to 400m 2 /kg。
In some embodiments of the present invention, the modified gypsum has a specific surface area of 300 to 400m 2 /kg。
In some embodiments of the present invention, the specific surface area of the admixture is 200 to 300m 2 /kg。
In some embodiments of the invention, the sand comprises machine-made sand and natural river sand, and the mass ratio of the machine-made sand to the natural river sand is 2-2.5: 1.
In some embodiments of the invention, the stones comprise big stones and small stones, the mass ratio of the big stones to the small stones is 3-4: 1, the particle size of the big stones is 10-20 mm, and the particle size of the small stones is 2-5 mm.
In some embodiments of the invention, the water reducer is a polycarboxylic acid high performance water reducer.
The admixture is also called as admixture, and is used for improving the performance of concrete, saving water, regulating the strength grade of concrete and mixing natural or artificial powdery mineral substances capable of improving the performance of concrete during the mixing of concrete, and comprises active admixture and inactive admixture. In some embodiments of the invention, the admixture is titanium slag, lithium slag, and powdered coal ash.
A preparation method of shotcrete comprises the following steps:
s1, mixing sulphoaluminate cement and modified gypsum uniformly for later use;
s2, weighing the rest raw materials in proportion, placing the raw materials into a container, adding water, and stirring to obtain the product.
In some embodiments of the invention, the stirring time of S2 is 1 to 3 minutes.
The sprayed concrete on the market at present usually adopts portland cement or ordinary portland cement with an accelerator added. The calcination temperature of the sulphoaluminate cement selected by the invention is 200 ℃ lower than that of common Portland cement, the energy consumption is low (the cost is low), the carbon dioxide emission is less, and the raw material selection range is wide. Therefore, the sprayed concrete prepared from the sulphoaluminate cement is green and environment-friendly, has certain economic advantages, effectively reduces the production cost, and is beneficial to environmental protection and energy conservation of enterprises. In addition, the setting time of the sprayed concrete is controlled by adding the modified gypsum, the use is convenient, and the alkali-containing setting accelerator harmful to human bodies is not added, so that the concrete has the advantages of early strength, good durability and usability, high later strength increase rate and the like.
Example 1
The embodiment provides shotcrete, which comprises the following raw materials in parts by weight:
sulphoaluminate cement: 18 parts of a mixture;
modified gypsum: 3 parts of a mixture;
titanium slag: 2 parts of (1);
sand: 40 parts of a mixture;
stone: 34 parts of (a);
water reducing agent: 0.2 part;
water: 10 parts.
The sand comprises machine-made sand and natural river sand, and the mass ratio of the machine-made sand to the natural river sand is 2-2.5: 1; the stones comprise large stones and small stones, the mass ratio of the large stones to the small stones is 3-4: 1, the particle size of the large stones is 10-20 mm, and the particle size of the small stones is 2-5 mm.
The preparation method of the sprayed concrete comprises the following steps:
s1, mixing sulphoaluminate cement and modified gypsum uniformly for later use;
s2, weighing the rest raw materials in proportion, placing the raw materials into a container, adding water, and stirring for 1-3 minutes.
Example 2
The embodiment provides shotcrete, which comprises the following raw materials in parts by weight:
sulphoaluminate cement: 19 parts of a mixture;
modified gypsum: 3 parts of a mixture;
lithium slag: 3 parts of a mixture;
sand: 38 parts of a mixture;
stone: 33 parts of a binder;
water reducing agent: 0.2 part;
water: 10 parts.
The sulphoaluminate cement comprises the following raw materials in percentage by mass:
calcium sulfoaluminate: 38-45 wt.%;
dicalcium silicate: 38-45 wt.%;
calcium sulfate: 2-6 wt. -%)
Tricalcium aluminate: 2-6 wt. -%)
Tetracalcium aluminoferrite: 1 to 4 wt.%.
Preferably, the specific surface area of the sulphoaluminate cement is 350m 2 Per kg; the sand comprises machine-made sand and natural river sand, and the mass ratio of the machine-made sand to the natural river sand is 2-2.5: 1; the stones comprise large stones and small stones, the mass ratio of the large stones to the small stones is 3-4: 1, the particle size of the large stones is 10-20 mm, and the particle size of the small stones is 2-5 mm.
The preparation method of the sprayed concrete comprises the following steps:
s1, mixing sulphoaluminate cement and modified gypsum uniformly for later use;
s2, weighing the rest raw materials in proportion, placing the raw materials into a container, adding water, and stirring for 1-3 minutes.
Example 3
The embodiment provides shotcrete, which comprises the following raw materials in parts by weight:
sulphoaluminate cement: 20 parts of a binder;
modified gypsum: 4 parts;
fly ash: 2 parts of (1);
sand: 39 parts of a mixture;
stone: 32 parts of (1);
water reducing agent: 0.2 part;
water: 10 parts.
The sand comprises machine-made sand and natural river sand, and the mass ratio of the machine-made sand to the natural river sand is 2-2.5: 1; the stones comprise large stones and small stones, the mass ratio of the large stones to the small stones is 3-4: 1, the particle size of the large stones is 10-20 mm, and the particle size of the small stones is 2-5 mm.
The preparation method of the sprayed concrete comprises the following steps:
s1, mixing sulphoaluminate cement and modified gypsum uniformly for later use;
s2, weighing the rest raw materials in proportion, placing the raw materials into a container, adding water, and stirring for 1-3 minutes.
Example 4
The embodiment provides shotcrete, which comprises the following raw materials in parts by weight:
sulphoaluminate cement: 19 parts of a mixture;
modified gypsum: 3 parts of a mixture;
titanium slag: 4 parts of a mixture;
sand: 38 parts of (B);
stone: 33 parts of (B);
water reducing agent: 0.2 part;
water: 10 parts.
The sand comprises machine-made sand and natural river sand, and the mass ratio of the machine-made sand to the natural river sand is 2-2.5: 1; the stones comprise large stones and small stones, the mass ratio of the large stones to the small stones is 3-4: 1, the particle size of the large stones is 10-20 mm, and the particle size of the small stones is 2-5 mm.
The preparation method of the sprayed concrete comprises the following steps:
s1, mixing sulphoaluminate cement and modified gypsum uniformly for later use;
s2, weighing the rest raw materials in proportion, placing the raw materials into a container, adding water, and stirring for 1-3 minutes.
The physical property parameters of the concrete prepared in the embodiments 1 to 4 of the invention are shown in the following table:
TABLE 1 concrete physical Property parameters prepared in examples 1-4
Figure BDA0003718337050000071
As can be seen from the above table, the concrete prepared in examples 1-4 has compressive strength of more than 10MPa in 8h, more than 24MPa in 1d, more than 32MPa in 3d, and more than 42MPa in 28 d. The sprayed concrete has early strength and steadily increased later strength.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, but not to limit the technical solutions, and certainly not to limit the scope of the present invention; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; that is, the technical problems to be solved by the present invention, which are not substantially changed or supplemented by the spirit and the concept of the main body of the present invention, are still consistent with the present invention and shall be included in the scope of the present invention; in addition, the technical scheme of the invention is directly or indirectly applied to other related technical fields, and the technical scheme of the invention is included in the patent protection scope of the invention.

Claims (10)

1. The sprayed concrete is characterized by comprising the following raw materials in parts by weight:
sulphoaluminate cement: 16-20 parts of a solvent;
modified gypsum: 2-6 parts;
blending material: 1-3 parts;
sand: 38-44 parts;
stone: 32-38 parts;
water reducing agent: 0.15-0.3 part;
water: 8-12 parts.
2. The shotcrete of claim 1, wherein the sulphoaluminate cement comprises the following raw materials in percentage by mass:
calcium sulfoaluminate: 38-45 wt.%;
dicalcium silicate: 38-45 wt.%;
calcium sulfate: 2-6 wt. -%)
Tricalcium aluminate: 2-6 wt. -%)
Tetracalcium aluminoferrite: 1 to 4 wt.%.
3. The shotcrete as claimed in claim 1, wherein the specific surface area of the sulphoaluminate cement is 300 to 400m 2 /kg。
4. The shotcrete as claimed in claim 1, wherein the modified gypsum has a specific surface area of 300 to 400m 2 /kg。
5. The shotcrete as claimed in claim 1, wherein the admixture has a specific surface area of 200 to 300m 2 /kg。
6. The shotcrete as claimed in claim 1, wherein the sand includes machine-made sand and natural river sand, and a mass ratio of the machine-made sand to the natural river sand is 2-2.5: 1.
7. The shotcrete as claimed in claim 1, wherein the stones include large stones and small stones, the mass ratio of the large stones to the small stones is 3-4: 1, the particle size of the large stones is 10-20 mm, and the particle size of the small stones is 2-5 mm.
8. The shotcrete of claim 1, wherein the water reducing agent is a polycarboxylic acid high performance water reducing agent.
9. A method of making shotcrete according to any one of claims 1 to 8, comprising the steps of:
s1, mixing sulphoaluminate cement and modified gypsum uniformly for later use;
s2, weighing the rest raw materials in proportion, placing the raw materials into a container, adding water, and stirring to obtain the finished product.
10. The method according to claim 9, wherein the stirring time of S2 is 1 to 3 minutes.
CN202210741938.3A 2022-06-28 2022-06-28 Sprayed concrete and preparation method thereof Pending CN115124314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210741938.3A CN115124314A (en) 2022-06-28 2022-06-28 Sprayed concrete and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210741938.3A CN115124314A (en) 2022-06-28 2022-06-28 Sprayed concrete and preparation method thereof

Publications (1)

Publication Number Publication Date
CN115124314A true CN115124314A (en) 2022-09-30

Family

ID=83380734

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210741938.3A Pending CN115124314A (en) 2022-06-28 2022-06-28 Sprayed concrete and preparation method thereof

Country Status (1)

Country Link
CN (1) CN115124314A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09268048A (en) * 1996-04-02 1997-10-14 Denki Kagaku Kogyo Kk Spraying material and spraying by using the same
US5961712A (en) * 1996-05-24 1999-10-05 Sungeric International, Inc. Method for making shotcrete and such compositions
JP2004155654A (en) * 2004-02-05 2004-06-03 Denki Kagaku Kogyo Kk Spraying material, and spraying method using the same
CN101439938A (en) * 2008-12-16 2009-05-27 重庆市博赛矿业（集团）有限公司 Processing method for manufacturing rapid hardening ferrous aluminate cement from red mud
JP2013177279A (en) * 2012-02-29 2013-09-09 Denki Kagaku Kogyo Kk Spray material and spraying method using the same
CN105503102A (en) * 2015-12-22 2016-04-20 嘉华特种水泥股份有限公司 Early-strength sprayed concrete
CN108069649A (en) * 2016-11-09 2018-05-25 无锡市江淮建材科技有限公司 A kind of compounding of rapid hardening cement fondu material and preparation method thereof
CN113968714A (en) * 2021-09-29 2022-01-25 宿州市健生矿山设备有限公司 Aluminate cement-based spraying mortar and preparation method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09268048A (en) * 1996-04-02 1997-10-14 Denki Kagaku Kogyo Kk Spraying material and spraying by using the same
US5961712A (en) * 1996-05-24 1999-10-05 Sungeric International, Inc. Method for making shotcrete and such compositions
JP2004155654A (en) * 2004-02-05 2004-06-03 Denki Kagaku Kogyo Kk Spraying material, and spraying method using the same
CN101439938A (en) * 2008-12-16 2009-05-27 重庆市博赛矿业（集团）有限公司 Processing method for manufacturing rapid hardening ferrous aluminate cement from red mud
JP2013177279A (en) * 2012-02-29 2013-09-09 Denki Kagaku Kogyo Kk Spray material and spraying method using the same
CN105503102A (en) * 2015-12-22 2016-04-20 嘉华特种水泥股份有限公司 Early-strength sprayed concrete
CN108069649A (en) * 2016-11-09 2018-05-25 无锡市江淮建材科技有限公司 A kind of compounding of rapid hardening cement fondu material and preparation method thereof
CN113968714A (en) * 2021-09-29 2022-01-25 宿州市健生矿山设备有限公司 Aluminate cement-based spraying mortar and preparation method thereof

Non-Patent Citations (16)

* Cited by examiner, † Cited by third party
Title
乌效鸣等: "《钻井液与岩土工程浆材》", 31 July 2014, 中国地质大学出版社, pages: 194 *
佟钰等: "《混凝土混合料》", 31 January 2016, 哈尔滨工业大学出版社, pages: 33 *
周福宝等: "巷道喷涂防治煤炭自燃新技术", 中国矿业大学出版社, pages: 151 - 1 *
宋修元: "软流塑地质条件快速硫铝酸盐砼注浆技术", 《石家庄铁道学院学报》, 25 May 2006 (2006-05-25) *
席耀忠: "速凝水泥浆体的速凝原因及机理探讨", 《中国水泥》 *
席耀忠: "速凝水泥浆体的速凝原因及机理探讨", 《中国水泥》, no. 01, 20 January 2007 (2007-01-20) *
樊文熙等: "喷射混凝土用高活性细掺料的研制", 《煤炭学报》 *
樊文熙等: "喷射混凝土用高活性细掺料的研制", 《煤炭学报》, no. 02, 25 April 2000 (2000-04-25) *
程良奎: "喷射混凝土(二)――喷射混凝土的材料组成与主要性能", 《工业建筑》 *
程良奎: "喷射混凝土(二)――喷射混凝土的材料组成与主要性能", 《工业建筑》, no. 02, 31 March 1986 (1986-03-31) *
荣传新等: "改性脱硫石膏基喷射混凝土结构应用与监测", 《安徽理工大学学报(自然科学版)》 *
荣传新等: "改性脱硫石膏基喷射混凝土结构应用与监测", 《安徽理工大学学报(自然科学版)》, no. 01, 15 January 2019 (2019-01-15) *
陈冀渝: "高掺量粉煤灰快硬水泥", 《粉煤灰》 *
陈冀渝: "高掺量粉煤灰快硬水泥", 《粉煤灰》, no. 06, 25 December 2010 (2010-12-25) *
黄乃炯: "喷射混凝土复合喷射水泥的工程特性", 《建井技术》 *
黄乃炯: "喷射混凝土复合喷射水泥的工程特性", 《建井技术》, no. 03, 30 June 1997 (1997-06-30) *

Similar Documents

Publication Publication Date Title
CN109503103B (en) Ultrahigh-toughness alkali-activated shotcrete and preparation method thereof
CN108101472B (en) Low-energy-consumption super-early-strength cement adhesive for insulator cementing and preparation method thereof
CN113336516A (en) Cementing material prepared from multi-element solid wastes and cooperative regulation and control method thereof
CN112279534A (en) Magnesium-based composite cement based on high-activity magnesia powder and preparation method thereof
CN108947431A (en) A kind of steam pressure porcelain powder air entrained concrete heat insulation building block
CN107352924A (en) A kind of concrete
CN111003966B (en) Sulfate-resistant low-alkali portland cement reinforcing agent and application thereof
CN110156422A (en) Gypsum plastering mortar and its construction technology suitable for machine sprayization spraying application
CN114671644B (en) High-early-strength low-resilience high-performance sprayed concrete and preparation method thereof
CN112551985A (en) Application of superfine tailings in concrete
CN114605121B (en) Tungsten tailing autoclaved aerated concrete and preparation method thereof
CN111925149A (en) Composite additive for sprayed concrete
CN115925306A (en) Dicalcium silicate activator and preparation method and application thereof
WO2024120065A1 (en) Mine tailing-derived self-forming material and use thereof
CN111253142A (en) Magnesium phosphate cement with good water resistance and application thereof
CN114835454A (en) Method for improving early performance of slag cement with large mixing amount by using nano silicon dioxide
CN115286346B (en) Method for adjusting setting time of high-strength full-solid waste cementing material
CN111234711A (en) High-durability inorganic bar-planting adhesive and preparation method thereof
CN108774016B (en) Double-source expanding agent for concrete and preparation method thereof
CN114804807B (en) Full-solid waste soft foundation sludge solidified powder and preparation method thereof
CN115124314A (en) Sprayed concrete and preparation method thereof
US11858848B2 (en) Regulating cementitious material for promoting hydration of Portland cement
CN105271983A (en) Modified stone flour dry mixed mortar and preparation method thereof
CN114702255A (en) Super-sulfate cement prepared from low-activity acidic slag and preparation method thereof
CN113248201A (en) Early-strength micro-expansion ultra-high performance concrete and preparation method and application 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
RJ01 Rejection of invention patent application after publication

Application publication date: 20220930