1.0.1 This code is prepared for the purpose of making the sprayed concrete construction be in accordance with the requirements of advanced technology, economic rationality, guaranteed quality and safety.
1.0.2 Sprayed concrete has two types of construction methods, namely dry mixture spraying and wet mixture spraying. This code is prepared according to the dry mixture spraying construction method which is widely adopted in China at present.
1.0.3 This code is applicable to sprayed concrete construction for supporting of various underground engineering, for repairing and strengthening of buildings, side slope treatment as well as water tanks and thin shell structures.
1.0.4 Sprayed concrete construction shall be carried out according to the design requirements. Prior to construction, a construction organization design shall be developed, and preparation shall be enough so as to guarantee smooth construction.
1.0.5 Sprayed concrete construction shall not only comply with the requirements of this code, but also shall be implemented in accordance with relevant current national standards and codes.
Chapter 1 General Provisions 1
Chapter 2 Equipment for Sprayed Concrete Construction 2
Chapter 3 Raw Materials and Mix Proportion of Sprayed Concrete 3
Chapter 4 General Requirements for Sprayed Concrete Construction 5
Section 1 Construction Preparation 5
Section 2 Mixing and Transportation of Mixtures 5
Section 3 Spraying Operation 6
Section 4 Construction of Sprayed Concrete for Reinforcement Mesh 7
Section 5 Construction of Sprayed Concrete for Steel Fiber 8
Section 6 Winter Construction of Sprayed Concrete 8
Section 7 Curing of Sprayed Concrete 9
Chapter 5 Construction of Sprayed Concrete Supporting for Underground Engineering 10
Section 1 Equipment Arrangement for Construction of Sprayed Concrete 10
Section 2 Preparation for Construction Operating Surface of Sprayed Concrete 10
Section 3 Operation of Sprayed Concrete 11
Section 4 Construction of Sprayed Concrete for Steel Frame 11
Section 5 Ventilation and Dust Prevention 12
Chapter 6 Sprayed Concrete Construction of Building Restoration and Reinforcement 13
Chapter 7 Construction of Sprayed Concrete for Side Slope Engineering 15
Chapter 8 Construction of Sprayed Concrete for Pool and Shell Structure Engineering 16
Chapter 9 Safety Technique 18
Chapter 10 Quality Inspection and Engineering Acceptance 20
Section 1 Quality Inspection 20
Section 2 Engineering Acceptance 22
Appendix 1 Technical Performance of Common Concrete Spraying Machine 23
Appendix 2 Technical Requirements of Aggregate for Sprayed Concrete 24
Appendix 3 Preparation Method of Test Blocks for Compressive Strength of Sprayed Concrete 25
Appendix 4 Test Method of Sprayed Concrete Bonding Strength 26
Appendix 5 Technical Requirements for Determination of Sprayed Concrete Dust 27
Appendix 6 Explanation of Wording in This Code 28
Standard
YBJ 226-1991 Technical Code for Construction of Sprayed Concrete (English Version)
Standard No.
YBJ 226-1991
Status
valid
Language
English
File Format
PDF
Word Count
10000 words
Price(USD)
250.0
Implemented on
1991-10-1
Delivery
via email in 1 business day
Detail of YBJ 226-1991
Standard No.
YBJ 226-1991
English Name
Technical Code for Construction of Sprayed Concrete
1.0.1 This code is prepared for the purpose of making the sprayed concrete construction be in accordance with the requirements of advanced technology, economic rationality, guaranteed quality and safety.
1.0.2 Sprayed concrete has two types of construction methods, namely dry mixture spraying and wet mixture spraying. This code is prepared according to the dry mixture spraying construction method which is widely adopted in China at present.
1.0.3 This code is applicable to sprayed concrete construction for supporting of various underground engineering, for repairing and strengthening of buildings, side slope treatment as well as water tanks and thin shell structures.
1.0.4 Sprayed concrete construction shall be carried out according to the design requirements. Prior to construction, a construction organization design shall be developed, and preparation shall be enough so as to guarantee smooth construction.
1.0.5 Sprayed concrete construction shall not only comply with the requirements of this code, but also shall be implemented in accordance with relevant current national standards and codes.
Contents of YBJ 226-1991
Chapter 1 General Provisions 1
Chapter 2 Equipment for Sprayed Concrete Construction 2
Chapter 3 Raw Materials and Mix Proportion of Sprayed Concrete 3
Chapter 4 General Requirements for Sprayed Concrete Construction 5
Section 1 Construction Preparation 5
Section 2 Mixing and Transportation of Mixtures 5
Section 3 Spraying Operation 6
Section 4 Construction of Sprayed Concrete for Reinforcement Mesh 7
Section 5 Construction of Sprayed Concrete for Steel Fiber 8
Section 6 Winter Construction of Sprayed Concrete 8
Section 7 Curing of Sprayed Concrete 9
Chapter 5 Construction of Sprayed Concrete Supporting for Underground Engineering 10
Section 1 Equipment Arrangement for Construction of Sprayed Concrete 10
Section 2 Preparation for Construction Operating Surface of Sprayed Concrete 10
Section 3 Operation of Sprayed Concrete 11
Section 4 Construction of Sprayed Concrete for Steel Frame 11
Section 5 Ventilation and Dust Prevention 12
Chapter 6 Sprayed Concrete Construction of Building Restoration and Reinforcement 13
Chapter 7 Construction of Sprayed Concrete for Side Slope Engineering 15
Chapter 8 Construction of Sprayed Concrete for Pool and Shell Structure Engineering 16
Chapter 9 Safety Technique 18
Chapter 10 Quality Inspection and Engineering Acceptance 20
Section 1 Quality Inspection 20
Section 2 Engineering Acceptance 22
Appendix 1 Technical Performance of Common Concrete Spraying Machine 23
Appendix 2 Technical Requirements of Aggregate for Sprayed Concrete 24
Appendix 3 Preparation Method of Test Blocks for Compressive Strength of Sprayed Concrete 25
Appendix 4 Test Method of Sprayed Concrete Bonding Strength 26
Appendix 5 Technical Requirements for Determination of Sprayed Concrete Dust 27
Appendix 6 Explanation of Wording in This Code 28
