This standard specifies the terminology, classification, grade and marking, technical requirements, test methods, inspection rules and transportation and stacking of lightweight aggregate concrete small hollow blocks. This standard is applicable to lightweight aggregate concrete small hollow blocks for industrial and civil construction. GB/T 15229-2002 Lightweight aggregate concrete small hollow blocks GB/T15229-2002 Standard download decompression password: www.bzxz.net

14S 91.100.30
National Standard of the People's Republic of China
GB/T 15229—2002
Lightweight aggregate concrete small hollow block
Ligbtweight aggregate concrete small hollow block2002-05- 30 Issued by General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on December 1, 2002. Implementation: G6/T15229--2002. This standard is revised on the basis of (B15229:1994 Light Aggregate - Small Hollow Blocks). The main contents of this standard are as follows: the relevant standards of the new standard are revised, the reference standards and raw materials are modified accordingly, and the product quality grades are adjusted. The minimum density grade of blocks and the minimum density of blocks are added, and the requirements for the resistance of blocks are improved; the test methods and inspection rules are also adjusted accordingly. This standard shall be revised from the date of implementation. GB13229-1: This standard is proposed by the National Bureau of Building Materials Industry, and the drafting unit of this standard is China; Institute of Building Materials and Products of the Institute of Building Science, Institute of Standardization of Building Materials.
Standardization units: Heilongjiang Provincial Institute of Building Science, School of Materials Science and Engineering of Tongji University, Liaoning Provincial Institute of Building Science, Zhangxijiao Building Science Research and Design Institute, Runnan Building Materials Research and Design Institute, Beijing Zite New Building Materials Co., Ltd., Yunnan Koubao Smelting Ceramic Factory and Daqian Xiangtong Building Materials Co., Ltd. The drafters of this standard are: Xiacheng, Dianluoshu, Liangyuncan, Liu Junbo, Xuan, Aozuo. Chen Liefang, Ji Yiqi, Yuling, You Zhuangjie, Feng Guoxiao, etc.
This standard was published in 199 and subscribed in 2007. 1 Scope
National Standard of the People's Republic of China
Lightweight aggregate concrete small hollow block
Llghtweight aggregate cancrrte small holluw GB/T15229-2002
On behalf of GB15229-1934
This standard specifies the terms, classification, technical requirements, inspection methods, inspection rules, stacking and transportation of lightweight aggregate concrete small hollow blocks.
This standard is applicable to lightweight aggregate concrete small hollow blocks in industrial and civil construction. 2 Referenced standards
The standard clauses contained in the following standards become the clauses of this standard through reference in this standard. Definition. When this standard is published, all versions shown are valid. All parties who can subscribe to and use this standard should explore the possibility of using the latest version of the following standards. G31731339 Silicate cement. First pass silicate cement il31344-1399 Slag silicate cement, volcanic carbon cement and fly ash silicate cement 6B15%1S9 cement and cement powder for cement and cementitious materials GT4111-1997 Standard small hollow block test method GB6566 2000 Tianjin Explosive Materials Radiation 4 Nuclear Limit GB76-1 Concrete External Phase Agent
H-29591999 Bean Containing Crushed Acid Mud
G/T174H.1:1938 Light Aggregate and Its Test Methods Light Dye GB118646--2000: Granulated Blast Furnace Ore for Hydration and Quasi-Concrete JC/T790-1586 (996 Brick and Block Terminology J/T20S-1992 (1996)
Shadow Swelling Ball ||t t||JGJ291986 Technical specification for the application of fly ash in concrete slurry 51-199 Technical specification for lightweight aggregate concrete
JGJ5292
3 Terminology
Quality standard for sand used in general surface concrete and test force method The standard adopts JCT7U and JG54 Classification
4.1 Category
According to the number of rows of holes in the block, it is divided into five categories: solid (0), single row of holes (11), double row of holes (2), triple row of holes (3,4) 4.2 Grade
4.2.1 According to the density, it is divided into eight grades; 500, 60H0.700.800.SCG, 1000.1200.1400 Note: The density grade of solid blocks is not large. 4.2.2 According to the equivalent strength of the tide, it can be divided into suction. 1.5.2.5.3.6.5.C, 7.5, 10.0. Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on May 30, 2002, implemented on December 0, 2002
CB/T 15229-2002
2.2.3 The size of the block is allowed to be divided into two grades according to the difference and appearance quality: first-class product (C), qualified and qualified. 0.3 cup record
4.3-1 Product labeling, light 4 cement cement small plastic ordinary two pieces (LIIB) are marked in the order of product name, whole type, density, double degree grade, quality grade, random mark and run.
4.3.2 Marking example: Lightweight aggregate concrete with a density of 600, a grade of 1.5, and a first-class quality grade, is marked with:
LHB(3>6001.5HG1/T1E229.
5 Raw materials
Conform to GB 175, GR 1342, GB 1258 requirements. 5.2 Light materials
52.1 The minimum particle size is preferably 5mm
5.2.? Pulverized coal particles, clay particles, shale ceramsite, natural light materials, ultra-light materials, self-made coal mine non-light materials and coal slag should meet the requirements of GB T27431,1, among which the carbon content of coal slag should not exceed 10%; coal slag in the particle size filter should not exceed 30% of the total light materials.
5-2.3 The spherical rock meets the requirements of E7/T2, but the bulk density of the slag should not be less than 8Ck /m, 5.2.4 Non-fired pulverized coal shall meet the requirements of (14/17431.1) and the content of 57% of the pulverized coal shall be less than 1: the burning content shall be less than 15%. 5.3 Ordinary sand shall meet the requirements of JG]2 5.4 Mixed materials 5.4.1 The quality of pulverized coal shall meet the requirements of JGJ2R and GI/T15G. 5.4.2 The quality of pulverized coal shall meet the requirements of GB/118046. 5.5 External agent shall meet the requirements of B7 6 Technical requirements 6. 1 Specifications
6.1.11 Specification size is 3rm×19mmm×150mm: other specifications can be agreed upon by both parties. 6.1.2 Size tolerance should meet the requirements of Table 1. Item 7
Table 1 Specifications
1. The minimum external dimension of the main body should be less than m, 2. The minimum external dimension of the main body should not be less than 20 mm. 6.2 Appearance quality
External quality meets the requirements of Table 2,
Qualified products
Lack of slow angle
Item name:
3 The minimum size of the same square image is ten/m: l
Not greater than
The system size of the certificate control image/mm
Technical size+
6-3 Degree level
Pressure level meets the requirements of Table 3.
Universal quality level
6.4 Sub-pressure level
GB/T15229—2002
Table 2 Appearance quality range
Qualified products
Quick use
IC--7G3
81--900
9ic·-1 ono
1 16-1 Suu
: 21c~-1 4nn
Those that meet the requirements of the strength grade are first-class products, and those that do not meet the requirements of the strength grade are qualified products. Table 4 Strength grade
Production grade
6.5 Water absorption, relative water content and shrinkage rate
6-5.1 Water absorption should not be greater than 2
Average strength
Super compression strength
6.5.2 Shrinkage rate and relative water content should meet the requirements of Table:
Medical grade sample
s1 suy
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CB/T 15229—2002
Table 3 Shrinkage and relative moisture content
Relative moisture content
1Relative moisture content is the ratio of moisture content to absorption rate. H
Where w
is the relative moisture content of a block:
is the moisture content of a block of leaves,
is the relative moisture content of a block of leaves,
2.The case of Sichuan area:
The area with the largest average relative density:
The area with low relative density
The area with low relative density
6.6 Acidification coefficient and catalytic efficiency coefficient
Add the small catalytic efficiency of volcanic ash such as coal black: Its catalytic efficiency should be less than (.8: The catalytic efficiency should not be less than 0.71. 6-Resistance to refining
Should meet the requirements of Table 6.
6.8 Radioactivity
The radioactivity of the waste in the waste industry should meet the requirements of GB6 Table 6 Anti-flow
Quick use conditions
Non-underheated area
Waist power area:
Relative humidity change> 60
Steam level change, 1 source or
Special cooking water activity 5 hours
Anti-moisture East mark
Music both rodents/outside
1: Buy the coldest average temperature limit of the area, the average area refers to the coldest month or the same area.
2, the new decision of the anti-pulse performance will also meet the requirements of 6. , Test and supervision method
To confirm the performance of the block, the test shall be carried out according to the relevant regulations of GB/T4111. When the shrinkage test is carried out according to Section 7, the water resistance of the test piece shall be 13b, and the radioactivity test shall be carried out according to 65.
8 Inspection specifications
8.1 Inspection classification
GB/T152292002
8.1.1 The inspection items for factory inspection are: dimensional deviation, appearance quality, density, surface quality, water absorption and relative moisture content: 8.1-2 type or inspection inspection In addition to Article 5.1.1, other inspection items include shrinkage rate, bed resistance, radioactive susceptibility test number and softening coefficient. Type inspection must be carried out in the following circumstances: a) when the type or origin of the lightweight concrete used changes; b) when the lightweight concrete is under normal production for 3 hours (shrinkage inspection of materials once a year); after the severity grade or output grade of the lightweight concrete is changed: a) when the production process of the block is changed: e) when the product will be produced for more than 3 months and then resume production: 8. 2 Batch inspection period: The blocks shall be inspected in batches according to the density and strength grade. 1000 blocks of the same type of aggregate with the same density grade and the same production system are considered as a batch: if the monthly output is less than 130 blocks, it is also considered as a batch.
8.3 Sampling rules
Number of random inspections: 3 blocks are randomly selected from the batch? 8.4.1 All inspection results shall be checked in accordance with the standards. The technical requirements for a certain grade shall be the same as that of the grade: 8.4.2 After the inspection, re-inspection may be carried out if there are the following circumstances: 1. The size deviation and appearance quality inspection of the blocks are as follows: 2. The size deviation and appearance quality inspection of the blocks are as follows: 3. The blocks that fail to meet the standards are as follows: 4. The size deviation and appearance quality inspection of the blocks are as follows: 5. The water content, water absorption and relative water content of the blocks are as follows: 6. The water content of the blocks is as follows: 7. The water content of the blocks is as follows: 8.4.2 After the inspection, re-inspection may be carried out if there are the following circumstances: 9. The blocks that fail to meet the standards are as follows: 10. , = other performance indicators except the indicators and one item that does not meet the standards; c) If the user has set up a factory inspection station for the manufacturer: 8.4.3 The number of inspections and inspection items for re-inspection should be the same as the previous inspection, 8.4.1 If the re-inspection meets the requirements of the corresponding grade indicators, it can be judged as fire grade: If it does not meet the standard requirements, then the batch of products is judged as unqualified.
9 Product certificate, stacking and transportation
9.1 Product certificate
When the individual block factory produces, the product quality certificate shall be provided, and its contents shall include: a) Factory name and front mark:
b) Qualification code and period:
c) Product mark;
ti1 Performance test result:
】Batch number and confirmed block number [block], "block", "block" and "block" signed by the inspector and the inspector 9.2 Product maintenance and transportation
GB/T 15229
9.2.1 Batch blocks shall be stacked in batches according to density and temperature grade, quality grade and quality grade. No impurities shall be collected. 9.2.2 When the blocks are installed, it is strictly forbidden to bump or fall, and they shall be neatly stacked and lightly stacked. It is not allowed to use a dump truck to tip them. 9.2.3 When the blocks are discharged and transported, they shall be protected from rain, overturning and drainage.
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