This standard applies to the performance test of ordinary concrete mixtures in construction projects, including sampling and sample preparation, consistency test, setting time test, water seepage and pressure water seepage test, apparent density test, air content test and mix ratio analysis test. GB/T 50080-2002 Ordinary concrete mixture performance test method standard GB/T50080-2002 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Ordinary concrete mixture performance
Test method standard
GB/T50080—2002
Proposing department: Ministry of Construction of the People's Republic of ChinaIssue date: June 1, 200
Ministry of Construction of the People's Republic of China
No. 103
The Ministry of Construction of the United States issued the announcement of the National Standard "Standard for Test Method of Performance of Ordinary Concrete Mixtures", which is now approved by the State Council as GTT50090-2002 and will be implemented from January 1, 2003. At the same time, the "Test Method of Performance of Ordinary Concrete Mixtures" GB085 will be stopped, and the Ministry of Construction's Standard Research Institute will organize the publication and distribution of the standard.
Ministry of Design of the People's Republic of China
231月10日
The second consecutive revision of the national standard, Ting
Planning Notice" (authority No. 1): The original standard for the delayed sale of ten compound performance test formulas (BI89-5) was revised:
The three main contents of this standard are: 1 General test: 2 Detailed preparation of the compound: 3 Test of the degree: Time verification, necessary test of water seepage rate: 6 Apparent air flow test, and the inclusion of the test method: comparison analysis and adjustment; the addition of the actual factor method, the main contents are: , except for the Beijing standard water test block, 2, for the original standard: its The technical selection of the age of the currency is more suitable for the currency, the difference is good: 3.H ten good technical equipment, increased scale expansion test, the time of the test peak, the water pressure can be small or monitor the water, increase the number of test points: 4, the original standard pain "1 water spot associated with the needle" out! The new water point ratio can be expanded into a ratio of four people to divide the more practical currency test method; the test is based on the standardization fee: 6, the training has added a change in the report \ seat package medicine for the run, etc.
This specification will be revised by the relevant department, and the city's exhibition department will be able to provide the information and content of the tea support will be listed in the standardization journal of the art supply cattle. This specification is responsible for the management of the relevant department, and the national scientific institute has been responsible for the specific technical interpretation of the "group.
In order to provide a standard plan, all positions in the store shall implement this specification Also through the whole, the project implementation: carefully summarize the meeting, and put the opinions and suggestions into practice Beijing North Third Ring Road China Academy of Building Research Center Environmental Standards Research Center National Standard Consultation and Promotion of Material Density Test Method Standard (Email: 1OI3.5
E-nail:ighzcnovi.sin.an
This standard is formulated by the Ten Important Persons List Compiled by: China Lanzhou Academy of Sciences
Participating in the editing: Zhihua University
School of Materials Science and Engineering, University of Economics
Chaonan University
Product Quality Supervision and Inspection Center of the Ministry of Railways
Shizhou China Construction Engineering Design Institute
China. Li Building Materials Science Research Institute
Hangzhou Jingfu Institute of Technology|| tt||Inquiry Building Materials Research Institute
Jinan Chengjin Group Co., Ltd.
Feng people: This is the order of the director of the Ministry of Industry and Information Technology, Yang Zheng
School of Science and Technology, Huang Zhengzhong Meinan Lin Xiaozhu Li Jiajing Business Accepted
1 General Principles
1. Non! For the purpose of further interest, the wet test method is used to promote the error of setting ten tests, that is, the test water, the price in the process of testing or to the concrete material or waste adjustment mud + shaking car quality see: there is a mud material performance test method, the viscosity forget this light 1. Heart. 2 This is the most accurate and recent use of the raw building two promotion and mixed general ten convex replacement performance test, including the sampling and sample company, waste test, setting period test, water bleeding and point small secret test, surface change test, air content test and mix ratio test: 1. Heart 3 this standard test method is done by the furnace test. Or the test method should include the following contents: 1. The content to be provided: 1) Name of the commissioning unit: 2) Name of the process: 3) Name of the testing station: 4) Type, specification and origin of raw materials and proportion of the sample; 5) Other contents of the description.
Confidential information provided by the planning department:
1: Sample number:
2) Test period and time:
3) Name, model and number of instruments and equipment: 4: Environmental temperature and humidity;
5) Material quality, specification, production pool and test group number:
6) Testing method:
Frequency level:
R) Detection set:
9) Safety information. bzxz.net
[..4 General purpose test methods for properties of concrete mixtures shall be carried out in accordance with the provisions of this standard. Except for those that do not conform to the provisions of this standard, the relevant requirements of the national standards shall be followed. 3
2 Selection and preparation of samples
2.1 Sampling
2.11 The samples of the concrete mixture should be taken at the same time or on the same vehicle: the time required for sampling should not be less than 1 time.
2.1.2 The sample of concrete mixture should have a surface quality that is consistent with the specific method, and it is advisable to use multiple times. Generally, in the same batch of mud, avoid 1. Yuan and the same car identification 1 in about 174, 172 type and place of the return report year, the last edition of the column should not exceed 15rain, of course, the stone artificial full map,
2.1.3 from the completion of the winter performance test should not exceed the description, 1mis, 2.2 sample preparation
2.2.1 in the laboratory preparation of each limit of the two mixtures called, with the laboratory temperature change is kept at 5, the material temperature in the test room to keep the temperature of the test room, note: the war to lock the plan to the next Sichuan can be a time, the new Sichuan project is the current run 【to take a dynamic.
2.2.2 in the trial production room push mix 1, the material quantity should be measured by mass, weighing accuracy: private ± 1%; water, water seepage, admixtures, admixtures are ± 0.5%. 2.2.3 The preparation of the mixture should contain the relevant provisions of the general mix design in the current science 5. 2.2.4 The performance tests should be carried out no more than 5 minutes after the preparation. 2.3 Test records 2.3.1 Sampling records should include the following: 1 Sampling date and time; 2 Name, structure and location of the mixture; Main ingredients of the mixture, etc.: tt||4, force method;
≤ test fence shrinkage:
6 effect;
not your temperature and sampling limit concrete temperature, 2.3, 2 laboratory preparation of mud materials, in addition to the above points record, let the laboratory record the following 5:
1 test source:
2 various raw material varieties, specifications, origin and performance indicators: 3 crown concrete composite material brother of each plate run case. 4
3 consistency test
3.1 no slump and canal fall expansion method
3.1.1 six square door a piece of material ground too large particle size T40mm, slump not small batch of mixed material quality measurement.
3.1.2 the source of the state of the increase of the expansion of the test institute 1 economic instrument should be effective Taiwan run whole group release "3021! Provisions on technical fees. 3.1.3. After the consultation and verification of the period, the media shall be carried out in a step-by-step manner: 1. The width of the cylinder and the bottom of the cylinder shall be well moistened, and the inner wall shall be kept clean. 1. The courtyard board shall be placed on the solid plane, and the opening shall be placed in the center of the solid board: the whole board shall be evenly balanced with the whole board, and the position of the opening shall be kept fixed during installation. The small sample obtained according to the requirements shall be evenly installed, and the height of each layer shall be one tenth of the commercial height. The half-layer sample shall be inserted 25 times, and the media shall be installed in the direction from the outside to the center: the opening shall be inserted in the cross section when the name is distributed. 15. When the raft is about to drop to the bottom of the pile, it should be level with the material. When the raft is about to drop to the top of the pile, it should be level with the material. When the raft is about to drop to the bottom of the pile, it should be level with the material. When the raft is about to drop to the top of the pile, it should be level with the material. When the raft is about to drop to the bottom of the pile, it should be level with the material. When the raft is about to drop to the bottom of the pile, it should be level with the material. When the raft is about to drop to the bottom of the pile, it should be level with the material. 4 After the temperature is raised, measure the length between the highest point of the filtered test piece and the measured value: that is the temperature of the mixed material; after the temperature is raised, if any moisture release or shear failure is found, new sampling should be carried out; if the second test still shows any moisture release phenomenon, the instrument is inaccurate and should be recorded, and the quality of the mixed material and the water retention capacity should be checked. The viscosity change inspection method is to make a detailed test on the body after the fall. If the body gradually sinks, it indicates that the viscosity is good. If there is a phenomenon of separation, separation or breakage, it means that the cohesion is not good. The water retention property is determined by the degree of mixed soil. If there is a large amount of slurry after the instrument is lifted up, it means that the water retention ability of the mud composite is not good. If there is no slurry after the instrument is lifted up or there is a small amount of slurry in the instrument, it means that the water retention of this mud composite is good. 6 When the depth of the mixture is greater than 220m: use a steel ruler to measure the maximum diameter and the minimum diameter of the concrete. Under the conditions of two hundred measurements, the arithmetic mean value is taken as the good expansion value. If it is found that there is mud backflow in the middle or at the edge of the mixture, it means that the sedimentation of the mixture is not good. It should be verified that: 3.1.4 The sedimentation depth of the mixture should be measured in millimeters. The unit is: nm. The result is shown in the table. 3.1.5 The test report of the seven mixing processes should be in accordance with the requirements of Section 1.0.3 of this standard. The sedimentation length value or the potential sedimentation length value of the mixture should be pulled. 3.2 Dispatch method 3.2.1 This method is suitable for the material. The measuring diameter is not more than 40mm, the mixture is between 5 degrees and 10 degrees, the drop depth is not more than m or 1 m. The rational mixture can be adjusted according to the soil and humidity of the soil and the effect of the adjustment can be determined by the method of Appendix A. 3.2.2 The use of the maintenance period should be in accordance with the requirements of the technical requirements of the instrument 3043. 5.2.3 The maintenance period test shall be carried out according to the following steps: 1. The test shall be carried out on the surface of the material with a fertilizer penetration device and a commercial tool. The inner wall of the material shall not be moistened with the tool: tighten the spray hopper above the drop depth, correct the content, transfer the center limit, and then pay the strict test of the country. 3. The temperature load of the material sample is carefully produced or produced by the country. The feeding cattle are evenly loaded with people, etc., and the loading and insertion methods of each material shall comply with the requirements of Section 1.3. The ruling of the second paragraph of the article:
Turn the hopper away, lift the vertical pool to the drop cylinder, this is called the continuous operation of the concrete test:
5 Turn the transparent mesh plate to the surface of the concrete solid, screw the measuring rod and lower the disc so that it lightly touches the top surface of the concrete; 6 Locate the heat setting, and check whether the measuring rod can be relaxed; 7 Stop opening the driver of the platform The time is 1 second. When the vibration reaches the bottom of the pan and is completely covered with cement, stop for one second and turn off the vibration table. 3.2.4 The stop time is the maintenance time of the mixture! 3.1.5 In addition to the contents of Article 1.03 of this standard, the following contents shall be reported: the maintenance time of the semi-solid content test value || tt ||4.0.1 This force method is suitable for the determination of the coagulation time of the mixture by using the force method. The slump value is not zero. +0, 2 manpower should be set by the staff, Xie needle, sand sample and standard combination. It is a hand, called the mouth of the mouth, the instrument should meet the following requirements
1 Add the device: the total daily measurement value is not less than 100, please = 10: 2 Needle: 100mm long, 100mm, mm and 20mm three types of through: 25mm from the person engraved with a mark: 3 Mortar sample: 16mm diameter, the lower mouth is 15htr., the second highest is 1 small vegetable water metal willing to come out of the first five without a son 4 standard sieve: the hole is 5mm in accordance with the national standard test sieve 3Gk/16U05 specified will be a round sieve.
4.03 The setting test shall be carried out in the following steps: 1. Prepare the concrete sample of the standard or existing concrete composition from the beginning of the day, sieve out the sintered material, sieve out the sintered material, and then evenly sprinkle it in three test tubes. Therefore, the three tests shall be carried out, and the sample age shall not be greater than the flow rate of the sample. The sample shall be tested by batches of people. The original mortar shall be tested by shaking for the second time: the mortar shall be continuously tested until the slurry comes out of the surface. The sample shall not be removed manually. When the sample is peeled off, the cumulative force shall be evenly applied from the outside to the center for 75 times, and then the sample wall shall be gently hit until the hole is removed. After the test or heating, the surface of the test tube shall be lower than the risk of O; R material test tube is established. 2 After the sand is prepared, it is placed in an environment with a humidity of 12 or under on-site conditions for testing. During the entire test, the humidity of the environment is kept at 20+2.In addition to the contents of Article 03, the following shall also be reported: 4.0.1 This force method is suitable for the determination of the setting time of the mixture when the slump value of the sieved sand from the concrete mixture is not zero. +0, 2 manpower should be provided by the staff, and the sand sample and standard shall be confirmed. Therefore, it is called a hand-held device with sufficient effectiveness. The instrument should meet the following requirements: 1. The total daily measurement value is not less than 100%, the thickness is 10: 2. Needle: 100mm long, with three diameters of 100m, 100mm and 20mm. There is a mark engraved at 25mm from the edge: 3. Mortar sample: The lower mouth is 15htr. The diameter is 16mm, the second highest is 1. The metal is willing to inspect small vegetables and water. 4. Standard sieve: The hole is 5mm and it is a round sieve specified in the national standard test sieve 3Gk/16U05.
4.03 The setting test shall be carried out in the following steps: 1. Prepare the concrete sample of the standard or existing concrete composition from the beginning of the day, sieve out the sintered material, sieve out the sintered material, and then evenly sprinkle it in three test tubes. Therefore, the three tests shall be carried out, and the sample age shall not be greater than the flow rate of the sample. The sample shall be tested by batches of people. The original mortar shall be tested by shaking for the second time: the mortar shall be continuously tested until the slurry comes out of the surface. The sample shall not be removed manually. When the sample is peeled off, the cumulative force shall be evenly applied from the outside to the center for 75 times, and then the sample wall shall be gently hit until the hole is removed. After the test or heating, the surface of the test tube shall be lower than the risk of O; R material test tube is established. 2 After the sand is prepared, it is placed in an environment with a humidity of 12 or under on-site conditions for testing. During the entire test, the humidity of the environment is kept at 20+2.In addition to the contents of Article 03, the following shall also be reported: 4.0.1 This force method is suitable for the determination of the setting time of the mixture when the slump value of the sieved sand from the concrete mixture is not zero. +0, 2 manpower should be provided by the staff, and the sand sample and standard shall be confirmed. Therefore, it is called a hand-held device with sufficient effectiveness. The instrument should meet the following requirements: 1. The total daily measurement value is not less than 100%, the thickness is 10: 2. Needle: 100mm long, with three diameters of 100m, 100mm and 20mm. There is a mark engraved at 25mm from the edge: 3. Mortar sample: The lower mouth is 15htr. The diameter is 16mm, the second highest is 1. The metal is willing to inspect small vegetables and water. 4. Standard sieve: The hole is 5mm and it is a round sieve specified in the national standard test sieve 3Gk/16U05.
4.03 The setting test shall be carried out in the following steps: 1. Prepare the concrete sample of the standard or existing concrete composition from the beginning of the day, sieve out the sintered material, sieve out the sintered material, and then evenly sprinkle it in three test tubes. Therefore, the three tests shall be carried out, and the sample age shall not be greater than the flow rate of the sample. The sample shall be tested by batches of people. The original mortar shall be tested by shaking for the second time: the mortar shall be continuously tested until the slurry comes out of the surface. The sample shall not be removed manually. When the sample is peeled off, the cumulative force shall be evenly applied from the outside to the center for 75 times, and then the sample wall shall be gently hit until the hole is removed. After the test or heating, the surface of the test tube shall be lower than the risk of O; R material test tube is established. 2 After the sand is prepared, it is placed in an environment with a humidity of 12 or under on-site conditions for testing. During the entire test, the humidity of the environment is kept at 20+2.
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