Some standard content:
This standard replaces GB145021394 Premixed Wet Concrete. The main changes compared with GB12-1994 are as follows: GB/T145C2-2003. 3. In the general specification, the inapplicability to lightweight concrete is eliminated, and the effect, vibration and protection after transportation to the delivery place are clarified. 2. The mass grade of general products is increased from C4 to C50, the thickness is increased from 1501mm3 to 10mm3, and the wet mixing time of fixed mixer is increased. 4. According to the current social requirements for environmental protection and the specific conditions of production, the environmental protection requirements for mixed production enterprises and products are increased. 5. The allowable deviation for the actual use of engineering to review the actual baking of concrete is increased. 6. The sampling inspection frequency of premixed concrete with special requirements for impermeability and water resistance is increased. This standard was proposed by the Ministry of Construction of the People's Republic of China. This standard is under the jurisdiction of the Ministry of Construction's Construction Engineering Standards Department. The responsible unit of this standard is: China Academy of Integrated Sciences. The participating drafting units of this standard are: Beijing Jiejian Group Co., Ltd., Beijing Construction Engineering Quality Supervision Center, Shenzhen Antuoshan Concrete Company, Shanghai Jiahuahuang Concrete Company, Jianjiang Huacheng Building Materials Co., Ltd., Beijing Jiafang Yihehuai Concrete Co., Ltd., Beijing Zhongjian Concrete Co., Ltd., Beijing Yueban District Construction Committee, Shanghai Construction Engineering Materials Science and Engineering Co., Ltd., Beijing Construction Engineering China Construction Group Co., Ltd., Beijing Chuhua Concrete Station, Gonghai Yajian Construction Science Research Institute, Guangdong Xinqiang Concrete Co., Ltd., Beijing Oriental Jinjian Technology Co., Ltd., etc. The editors of this standard are: Xu Eli, Han Subang, Lu Lai Che, Bu Jinxuan, Zheng Zhuofu, Chen Yiming, Lu Juwu, Liu Xiangchen, Zhang Qu, Han Fangji, Yuan Wei, Zhu Lihua, Gao Jinbei, Yu Ming. Ni Fan, Chen Xiliang, Wei Ququn. This standard was first issued in 1994. This standard was entrusted to the China Construction Science Research Institute for the interpretation. 1 Scope
Concrete
GB/T 14902—2D03
This standard defines the specification, classification, marking, technical requirements, delivery list, test methods, inspection rules and ordering and delivery information of concrete.
This standard applies to the pre-mixed concrete produced by batching plants. This standard does not include the burning, tamping and maintenance of filter concrete after it is transported to the delivery point. 2 Normative references
The following references are valid for use in accordance with the provisions of this standard. The following references are dated references. All subsequent revisions (excluding errors) or revisions are not applicable to this standard. However, all parties to this standard are encouraged to study whether the latest versions of these documents can be used as soon as possible. For references without a date, the latest version shall apply to this standard. GB1596 Algae ash in dry water and mixed with CB6566
Limits of radionuclides in building materials
Additional vehicles for concrete
(GB/T9142 Concrete mixer
GB/T 1&46
CB/T 5U80
Test methods for the properties of granulated high-radiation ore powder in concrete mixed with water
Test methods for mechanical properties of concrete
GR:T 50081
GB50119 Specification for the quality of concrete structures using external concrete GBSOEC4
GIR2
Test method for long-term performance of soil GBF1OT
Standard for strength assessment of soil
General standard for quality of sand used and age estimation
Standard and test method for quality of stone or pebble used in concrete
Standard for water used in mixing
J Gi/T112 Application of natural stone powder in cement and mortar JG/T094
Mixing and transportation of cement concrete
3 Specifications and definitions
The following terms and definitions apply to this standard
Ready-mixed concrete is a mixture of cement, aggregate, water and external agents such as mineral binders that are added as needed, which is measured and mixed in a certain proportion at a mixing station and sold, and transported to the place of use by a transport vehicle within a specified time: 3. 2
General purpose product Nornal concrete
Strength grade is not more than C50, scale reduction is not more than 18cm. The relative material size is 20mm, 25mm, 3,5mm or 40mm, without special requirements such as pre-mixed concrete. GB/T14902—2003
Special concrete
Performs an indicator but exceeds the standard of general products or has special requirements. 3. 4
Delivery place deliveryplace
The place where the supplier and the buyer determine the production and delivery in the contract. 3.6
Factory inspection Inspection of the original material before the ready-mixed concrete is delivered to the factory. 3. 6
Inspreliminary inspection place
Inspection of the quality of the goods
The inspection of the quality of the goods is carried out. 4. Classification and marking
4.1 Classification
The quality of the goods is divided into general products and special products according to the requirements of properties. 4.1.1 General products
General products should be specified within the following ranges: strength, uniformity and maximum nominal particle size: strength level is not more than C53.
Potential drop (nm): 25, 5.30100, 120150180 Coarse material nominal particle size (murma): 20.25, 31.5, 40, 4.1. 2 Special products
Special products The government stipulates that the concrete strength is equivalent to that of the general products, and the maximum nominal aggregate particle size is other than that specified in the general products. In addition to the specifications of the general products, the following specifications can be selected: strength grade, C55.C60.C65.C70.C75.C80, zone thickness: less than 180mm
Nominal size of coarse aggregate: less than 20mm>b1. greater than 4(11r, 4.2 Marking
4.2.1 The part number used for marking pre-prestressed concrete shall be based on its classification. Different materials are selected according to the regulations. The month of change and the month of return are indicated by the person who returns the product, and the day of return is indicated by the product: ai
The soil strength grade is expressed with the value of the selected soil slump value in millimeters; the nominal particle size of the material is expressed with D and the nominal size of the coarse aggregate is expressed with d
The technical source variety is expressed with its corresponding value:
When there is a demand for anti-freeze, resistance and flexural strength, the resistance grade and value of the source grade shall be used respectively, and the frost resistance, resistance and flexural strength shall be directly marked on the resistance grade, etc. 4.2.2 Mixable and marked with water-mixed powder GB/T14902-203 Material size nominal new diameter Strength grade, frost resistance, filter resistance or flexural strength grade (when required) Ready-mixed soil category 1 Strength grade of ready-mixed soil (G strength is Mm relative aggregate mass nominal 20m, black cement: other special requirements. Its certificate is: A C20-150-D2C-P - 5
The strength of the mixed product must be greater than C30. The recommended hardness is 1Krua. The maximum diameter is 25, and the required point is 13. The mark is:
5 Raw materials and mix ratio
5. 1 Cement
5.1.1 Water mix should meet the requirements of H5004
BCSPH-1RL-GIX5-Pn
5.1.2 Cement should have quality certification documents when it is delivered to the site. The test items for cement quality when it is delivered to the site shall be in accordance with the provisions of H5004.
5.2 Aggregates
5.2.1 Aggregates should meet the requirements of T52 and T53 and the current national standards. 5.2.2 Aggregates should have quality certification documents when they are delivered to the site. The incoming aggregates should be retested on a batch basis according to the provisions of JGI52IG53 and the current national standards. However, if the same aggregate manufacturer can continuously supply stable incoming materials, the inspection can be conducted less than once. When using sea sand and there are requirements for the content of ions or oxygen in the aggregate, the total amount should be inspected on a batch basis. 5.3 Mixing water
The water used for mixing concrete shall comply with the provisions of 10"63. It can be used as mixing water for the concrete only when it has been tested and proved that the concrete has no influence on the steel bar. 5.4 Admixtures
5.4.1 The quality of admixtures shall comply with the provisions of GB8076 and other national standards. 5.42 The quality certification documents shall be available when the admixtures are brought into the site. The admixtures shall be purchased in batches, and the inspection items shall be kept in accordance with the provisions of the current national standards. The test results can be obtained only after the test is completed. 5.5 Mineral admixtures
5.5.1 The fly ash, granulated blast furnace powder and hot rock shall comply with the provisions of GB1596, GB/T18\46 and JC/T.12 respectively. When other types of composite materials are used, the company has sufficient technical support and should conduct tests and verification before use. 5.5.2 Composite materials should have quality certification documents and be tested in accordance with relevant regulations. Their content should comply with relevant regulations and be determined through tests.
5.6 Pre-mixed soil mix ratio
5.E.1 Pre-mixed soil mix ratio design should be based on the contract requirements and the supplier should be approved by relevant national regulations such as 133. 5.E.2 The mix ratio designed in Section 5.6.1 must meet the requirements of Chapter 6 and must be qualified according to the standards of Chapter 10.
6 Quality requirements for ready-mixed concrete
6.1 Strength
GH/T 14902-2003
The initial assessment of concrete strength shall be carried out in accordance with the provisions of the relevant standards of the relevant countries such as the United States, 6.2 Slump
The difference between the actual slump value of concrete and the slump value specified in the contract shall comply with the provisions of Table 1. Table 1 The allowable range of concrete slump
55-·55
6.3 The difference between the amount of air in aerated concrete and the actual value shall not exceed 11.5%. 6.4 Total ion content (Table 2)
Table 2 Estimation of total ion content in concrete
According to the specific conditions of the concrete and the environment in which it is located
It is allowed to make a reservation in the air and match the environment: the production and observation of the cold weather environment in other areas, the vortex bottom drying environment in the cold winter area
The strict and cold environment in the mother area, the environment with natural water or soil in direct contact with the rapid rate of ice and salt environment 1 production and dense cold winter car bearing ring spot: The outdoor environment is predicted on the basis of the leisure phenomenon The components of the concrete are designed to be used in an indoor environment with a service life of 100 years. The percentage of the amount of water (whether it can replace the amount of water) is 6.5 Radioactive specific activity of the concrete. The radioactive specific activity of the concrete shall meet the requirements of the B6566 standard. 6.6 Others. The unit is meter. The unit is percentage. When the party has requirements for other properties of the concrete, the test shall be carried out in accordance with the relevant current national standards. If there are no standards, the test shall be carried out in accordance with the contract provisions, and the results shall comply with the standards and contract requirements. 7 Equipment. 7.1 Material storage. 7.1.1 Various materials must be stored separately and should be clearly marked. 7.1.2 The water should be stored separately according to the manufacturer, type, frequency of use, etc., and should be kept away from moisture and contamination. 7.1.3 The storage of incoming materials should ensure the integrity of the materials, and do not separate the small and large materials. At the same time, the small and large materials of the same type and size should be stored separately to avoid mixing or bleeding. The storage ground of incoming materials should be a hard ground with sufficient drainage. 1.4 If the materials are stored separately according to the manufacturer and type, measures should be taken to prevent changes in their quality records. 7.1.5 Mineral composite materials should be stored separately according to type and grade. It is forbidden to mix with other powdery materials such as water filters: 7.2 Mixer
7.2.1 The machine should adopt a fixed mixer that meets the requirements of GD/T9112. 7.2.2 The measuring equipment should be calibrated according to the relevant regulations and legal measurement units. It should be calibrated regularly during use. 7.2.3 The equipment should be able to continuously measure various materials for concrete mixing and should have the function of recording and storing the actual measurement results.
7.3 Transport vehicles
, and the transport vehicles should be able to maintain the uniformity of the mix and avoid segregation during transportation. GB/T14902-2003
7.3.2 The concrete mixing transport vehicle should comply with the provisions of GB/T5094. The tipping bucket is limited to transporting materials with a drop height of less than 90nm, and the transport container should be leak-proof, smooth and flat inside, and have a covering facility. 7.4 Measurement
7.4.7 The measurement of various raw materials should be by weight, and the measurement of water and liquid admixtures should be by volume: 7.4.2 The allowable deviation of the raw material measurement should not exceed the range specified in item 1 or item 2 of the table. Table 3 Allowable deviation in measurement of raw materials for concrete
Raw material type
Allowed deviation in measurement of each batch
Additional allowable deviation that needs to be calculated
Unit: percentage
Format
The allowable deviation that needs to be calculated refers to the measurement of each material in each batch of raw materials in the delivery service: and the single difference. The index is only applicable to the control station with state control. 7.5 Production 7.5.1 Premixed concrete shall be mixed with a mixing machine in accordance with 7.2.1 and shall be used strictly in accordance with the provisions of the equipment manual. 7.5.2 The mixing time of concrete shall comply with the following provisions: a) When using a semi-transport truck to transport concrete, the minimum mixing time shall comply with the provisions of the equipment manual, and each mixing time (calculated from the completion of the metal material) shall not be less than 35 minutes. When preparing concrete of higher grade or deep using air entraining agents, dew-proof agents, etc., the mixing time shall be increased accordingly. b) When using a bucket truck to transport concrete, the mixing time shall be appropriately extended. 7.5.3 Premixed concrete shall minimize the pollution to the environment during production. The mixing room should be changed in time. All materials shall be transported in a sealed state and there shall be a small container. The stone material yard should take measures to prevent dust. 7.5.4 The mixing station should also strictly control the discharge of production water. 7.5.5 The station should also set up special transport vehicle washing facilities. The concrete residue on the outer wall and hopper of the vehicle should be disinfected before the transport vehicle leaves the factory.
7.6 Concrete should be transported by the designated container truck. 7.6.2 The accumulated water in the container should be drained before the transport vehicle is loaded. 7.6.3 When it is necessary to add admixtures before unloading, the admixtures should be mixed quickly after being added to the mixing vehicle. The mixing time should be determined by test.
7.6.4 It is strictly forbidden to add water to the concrete in the transport vehicle. 7.6.5 The transportation time of the concrete mixer is from the time when the concrete mixer is put away to the time when the transport vehicle is loaded. The material should be transported in the first place, and the transportation time should be sufficient. When the contract does not stipulate, the material should be transported by standard transport vehicles within 1.2 hours. The material should be transported by bucket trucks within 1.2 hours. If the transportation time needs to be extended, corresponding technical measures should be taken. And it should be verified through tests. 7.6.6 The transportation of hungry concrete can prove the quality of the production of warm concrete. 6.7 The transport vehicle should be blocked during transportation to avoid spillage. 7.7 Quality management
In order for the filter concrete produced by the supplier to meet the quality requirements specified in Chapter 6, it must have a complete quality management system. 8 Supply quantity
Daily. 1 The pre-selected volume is calculated by the volume of the filter agent, and the calculation document is "plate". 8.2 The pre-selected volume is calculated by the apparent weight of the mixed material and the actual loading volume of the transport vehicle. GE/T14902-20D3
Comparison: The actual weight of the transport vehicle is calculated by the weight of all materials in the downstream vehicle and the difference between the weight of the transport vehicle and the weight of the materials before and after the delivery. 8.3 The supply of concrete should be calculated by the total amount of the transport vehicle. If necessary, the actual standard volume (excluding the steel bar in the mixed load structure) When the volume is checked, the error should not exceed ±2%. Test method
9.1 Strength
The concrete compressive strength and flexural strength tests shall be carried out in accordance with the relevant provisions of CB5C8. 9.2 The slump, air content, and apparent density of concrete mix shall be tested in accordance with the relevant provisions of T50/T8. 9.3 The filterability, frost resistance, and condensation resistance of soil shall be tested in accordance with the relevant provisions of 82. 9.4 Total ion content
The total ion content of the concrete can be calculated based on the chlorine content of each component material in the concrete. 9.5 Radioactive nuclei
The radioactive nuclei specific activity test of the concrete shall be carried out in accordance with the relevant provisions of GB666. 9.6 Special requirements
For the inspection items with special requirements in the content, they shall be carried out in accordance with the requirements of the current relevant national standards. If there are corresponding standards, they shall be carried out in accordance with the provisions of the contract.
10 Inspection specifications
10.1 General provisions
10.1.1 This inspection department shall also conduct quality inspection on the items specified in this standard to determine whether the quality of the premixed concrete meets the requirements. 10.1.2 The inspection of the quality of premixed concrete is divided into factory inspection and delivery inspection. The sampling and testing work for delivery inspection shall be undertaken by the supplier; the sampling and testing work for delivery inspection shall be undertaken by the purchaser. If the purchaser does not meet the test conditions, the supply and demand parties may negotiate to determine the inspection unit, among which the inspection unit with recognized test qualifications shall be selected and the inspection shall be carried out in consultation. 1.3 When judging whether the quality of the mixed material meets the requirements, the delivery inspection results shall be used as the basis. The total content of chlorine shall be based on the information provided by the supplier. Other inspection items shall be carried out in accordance with the provisions of the contract. 10.1.4 The test results of the delivery inspection shall be notified to the supplier within 15 days after the test. 10.1.5 The personnel who conduct the sampling and preparation of ready-mixed concrete must have the relevant qualifications. 10.2 Inspection items
10.2.1 Product inspection: strength and slump. 10.2.2 Product age inspection: In addition to the items listed in 10.2.1, other items shall be inspected in accordance with the provisions of the contract. 10.2.3 The air content of the soil with air-entraining admixture shall be tested. 10.3 Sampling and batching
10.3.1 The concrete samples for factory inspection shall be collected at the mixing site. The concrete samples for delivery inspection shall be collected at the delivery site.
10.3.2 Delivery inspection The sampling and drop test of concrete test pieces shall be completed within 2 m from the time the concrete is transported to the delivery site, and the production of test pieces shall be completed within 40 m. 10.3.3 Before delivery, the samples shall be randomly taken from the company's transport vehicle. The concrete test sample shall be able to unload the material through the material tray. 10.3.4 The volume of each sample shall be 1.0 times the daily amount required for the soil quality inspection item and should not be less than .92m 10.3.5 For the sample of concrete quality inspection, the sampling rules shall be as follows: a) For the sample of concrete quality inspection, the sampling shall not be less than 1 for every 100 trays of mixed ratio. If the mixed ratio is less than 1 tray, the sampling shall not be less than 1 for every next working shift. ) The sample used for delivery inspection shall be carried out in accordance with GB5234 (B/ 14902-2003
10.3.6 The sampling frequency of the test sample for the quality inspection of the composite shall be consistent with the sampling frequency of the test sample for the concrete with special maintenance requirements. 10.3.7 The sampling frequency of the test sample for the extended test of the concrete with special maintenance requirements shall be not less than 1 time for the same mix ratio of the same project. The retention efficiency shall be determined according to the actual situation. 10.3.8 For the test sample of the frost resistance test of the standard concrete with frost resistance requirements, the sampling frequency of the test sample for the inspection of the delivery and the delivery shall be not less than 1 time for the same mix ratio of the same project. The retention efficiency can be determined according to the actual situation: 10.3.9 The test sample for the gas or other special requirements of the concrete to be mixed or modified The frequency of rod inspection shall be carried out in accordance with the contract. 10.4 Qualification judgment
10.4.1 The test results of strength shall be qualified if they meet the requirements of 6.1. 10.4.2 The test results of slump and gas content shall be qualified if they meet the requirements of 5.2 and (.3 respectively. If the report does not meet the requirements, the remaining items of the sample shall be re-tested: The first test results shall meet the requirements of 3. and e., 3 respectively, and the absorption shall be reduced. 1G.4.3 The calculation results of the total chloride ion content shall meet the requirements of 6.4 and 1.4.4 The radioactive specific activity of the mixed radioactive element shall meet 5.3 and be qualified. 10.4.5 Other special requirements shall be qualified if the test results meet the requirements of the contract. Ordering and capital conversion
t1.1 Ordering
11.1.1 When purchasing, both parties shall arrange the production and supply according to the order form: The order form shall at least include the following: Ordering address and contact person:
Work order and contact person:
d) Delivery location;
Treatment location and filtration method:
Mud mark
Technical requirements:
Fangda;
Please note that the delivery start and end time is:
i) Supply quantity (m)
71.2 Delivery
When delivering the goods, the supplier shall provide the purchaser with the delivery stamp of the newly delivered pre-molded concrete along with a transportation vehicle. The delivery note shall include the following contents:
Contract number:
b) Delivery note number:
Name of the factory
Purchasing party:
Construction location:
Standard soil standard:
Supply period:
Supply quantity!
CB/T14902—2003
Departure time, arrival time
Confirmation procedures between the buyer and the supplier
The buyer shall designate a special person to confirm the quantity of the pre-selected soil provided by the supplier in a timely manner. 11.2.2 The supplier shall provide the factory-mixed concrete certificate to the buyer according to the type and strength of the concrete for the sub-project. The factory-mixed concrete certificate shall at least include the following contents:||t t||Factory certificate number:
Contract number:
Project master
Required expansion:
Supplier+
Delivery date:
Flow construction location+
Mixed soil mark:
Other technical requirements:
Supply quantity m);
Original variety, specification, grade and re-inspection report, mix ratio of cement!
Concrete strength index
Other performance index:
Quality assessment.3.7 The sampling rate of the samples for extended inspection of concrete with special maintenance requirements shall be not less than 10 times for the same mix ratio of the same project. The retention efficiency shall be determined according to the actual situation. 10.3.8 For the samples for frost resistance inspection of standard concrete with frost resistance requirements, the sampling rate of the samples for delivery inspection and multi-purchase inspection shall be not less than 10 times for the same mix ratio of the same project. The retention efficiency may be determined according to the actual situation: 10.3.9 The sampling frequency of the mixing test for the mixing problem or other special requirements shall be carried out according to the contract provisions. 10.4 Qualification judgment
10.4.1 The test results of strength shall meet the requirements of 6.1 and be qualified. 10.4.2 The test results of slump and gas content shall meet the requirements of 5.2 and (.3) respectively. If the requirements are not met, the remaining items of the coin sample shall be retested. The first test results shall meet the requirements of 3. and (.3) respectively. The absorption rate shall be reduced. 1G.4.3 The calculation results of total chloride ion content shall meet the requirements of 6.4 and (.4) and be qualified. 1.4.4 The radioactive specific activity of mixed radioactive elements shall meet the requirements of 5.3 and (.3) and be qualified. 10.4.5 Other special requirements shall be qualified if the test results meet the requirements of the contract. Ordering and capital conversion
t1.1 Ordering
11.1.1 When purchasing, both parties shall arrange the production and supply according to the order form: The order form shall at least include the following: Order address and contact person:
Work order and contact person:
d) Delivery location;
Treatment location and filtration method:
Mud mark
Technical requirements:
Fangda;
Please note that the delivery start and end time is:
i) Supply quantity (m)
71.2 DeliverybZxz.net
When delivering the goods, the supplier shall provide the purchaser with the delivery stamp of the newly delivered pre-molded concrete along with a transportation vehicle. The delivery note shall include the following contents:
Contract number:
b) Delivery note number:
Name of the factory
Purchasing party:
Construction location:
Standard soil standard:
Supply period:
Supply quantity!
CB/T14902—2003
Departure time, arrival time
Confirmation procedures between the buyer and the supplier
The buyer shall designate a special person to confirm the quantity of the pre-selected soil provided by the supplier in a timely manner. 11.2.2 The supplier shall provide the factory-mixed concrete certificate to the buyer according to the type and strength of the concrete for the sub-project. The factory-mixed concrete certificate shall at least include the following contents:||t t||Factory certificate number:
Contract number:
Project master
Required expansion:
Supplier+
Delivery date:
Flow construction location+
Mix soil mark:
Other technical requirements:
Supply quantity m);
Original variety, specification, grade and re-inspection report, mix ratio of cement!
Concrete strength index
Other performance index:
Quality assessment.3.7 The sampling rate of the samples for extended inspection of concrete with special maintenance requirements shall be not less than 10 times for the same mix ratio of the same project. The retention efficiency shall be determined according to the actual situation. 10.3.8 For the samples for frost resistance inspection of standard concrete with frost resistance requirements, the sampling rate of the samples for delivery inspection and multi-purchase inspection shall be not less than 10 times for the same mix ratio of the same project. The retention efficiency may be determined according to the actual situation: 10.3.9 The sampling frequency of the mixing test for the mixing problem or other special requirements shall be carried out according to the contract provisions. 10.4 Qualification judgment
10.4.1 The test results of strength shall meet the requirements of 6.1 and be qualified. 10.4.2 The test results of slump and gas content shall meet the requirements of 5.2 and (.3) respectively. If the requirements are not met, the remaining items of the coin sample shall be retested. The first test results shall meet the requirements of 3. and (.3) respectively. The absorption rate shall be reduced. 1G.4.3 The calculation results of total chloride ion content shall meet the requirements of 6.4 and (.4) and be qualified. 1.4.4 The radioactive specific activity of mixed radioactive elements shall meet the requirements of 5.3 and (.3) and be qualified. 10.4.5 Other special requirements shall be qualified if the test results meet the requirements of the contract. Ordering and capital conversion
t1.1 Ordering
11.1.1 When purchasing, both parties shall arrange the production and supply according to the order form: The order form shall at least include the following: Order address and contact person:
Work order and contact person:
d) Delivery location;
Treatment location and filtration method:
Mud mark
Technical requirements:
Fangda;
Please note that the delivery start and end time is:
i) Supply quantity (m)
71.2 Delivery
When delivering the goods, the supplier shall provide the purchaser with the delivery stamp of the newly delivered pre-molded concrete along with a transportation vehicle. The delivery note shall include the following contents:
Contract number:
b) Delivery note number:
Name of the factory
Purchasing party:
Construction location:
Standard soil standard:
Supply period:
Supply quantity!
CB/T14902—2003
Departure time, arrival time
Confirmation procedures between the buyer and the supplier
The buyer shall designate a special person to confirm the quantity of the pre-selected soil provided by the supplier in a timely manner. 11.2.2 The supplier shall provide the factory-mixed concrete certificate to the buyer according to the type and strength of the concrete for the sub-project. The factory-mixed concrete certificate shall at least include the following contents:||t t||Factory certificate number:
Contract number:
Project master
Required expansion:
Supplier+
Delivery date:
Flow construction location+
Mix soil mark:
Other technical requirements:
Supply quantity m);
Original variety, specification, grade and re-inspection report, mix ratio of cement!
Concrete strength index
Other performance index:
Quality assessment.
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