Guangzhou Zhongzhengliheng New Material CO., LTD.
Contact: Mr. Zhang
Business Phone :020 -87382699
E-mail: zhongzhengliheng@163.com
Office Address: No.115 & 117, Middle of Guangzhou Avenue, Yuexiu District, Guangzhou, China.
Website: www.gdzzlh.com
www.gzzzlh.com
This standard is the first formulation of the construction industrial standard.
This standard by the Ministry of construction standards for fixed proposed.
This standard by the Ministry of construction construction technical standard Department of China Academy of Building Research of centralized.
This standard drafting units: China Academy of building research.
This standard to the drafting unit: BASF (China) Co., Ltd., Guangzhou fosroc Company Limited, Jiangsu province building science research institute,
CS chemical ( Shanghai ) Limited, Shanghai Institute of building materials science and technology limited company, Shanghai master building materials limited company, Shanghai Shen Li building materials
Company Limited, Shanghai City Building Science Research Institute, Shenzhen city step concrete admixtures limited company, Tongji University, China Metallurgical Construction Research Institute of Northern
Jingye building special material limited company, Sichuan Ke Shuai admixture Limited, Beijing building materials for quality supervision and inspection station, Zhejiang Kuwait Engineering
Material limited company.
The main drafters of this standard: Guo Yanhui, Zhao Xiaolong, Guo Jingyu, Xue Qing, Gu Tao, Zhu Yanfang, Zhang Yanling, Ran Qianping, Wang Haoyuan,
Xuan Huaiping, Wang Shaode, Ma Mingyuan, Yao Lijun, Chen Weiguo, Jiang Zhengwu, Sun Zhenping, Mei Minghu, Song Zuobao, Fang Xingzhong, handsome in.
1 Range
This standard applies to the cement concrete of polycarboxylic high performance of term and definition, classification and mark, requirement, experiment
Method, inspection rules, packaging, delivery, storage etc..
This standard is applied to in the cement concrete of polycarboxylic high performance.
2 Normative reference files
Provisions in following documents cited by this standard and become the standard terms.
For dated references,
All the subsequent
Modification of single ( not including errata content ) or revised edition are not applicable to this standard, however, according to the standards to encourage the parties to reach an agreement study
The possibility of using the latest version of these documents. For undated references, the latest edition is suitable for this standard.
GB soccer 8076
Concrete admixture
GB / T 8077 methods for testing uniformity of concrete admixture
GB soccer 18582
GB / T 50080
GB / T 50081
GBJ soccer 82
JC soccer 473
Interior decoration materials
Limit of harmful substances of interior wall coating
The performance of ordinary concrete test method standard
Standard for test method of mechanical properties
Long-term performance and durability of ordinary concrete test method
Concrete pumping agent
Concrete antifreeze agent
JC 475-2004
JGJ soccer 52
JGJ soccer 63
3 Ordinary concrete sand, stone quality and test standards
3.1 Standard for concrete
Terms and definitions
Polycarboxylic high performance polycarboxylates high performance water-reducing admixture
By carboxylated unsaturated monomer and other monomer copolymerization and, in the concrete water reduction, strengthening, reinforced, contraction and environmental protection etc.
Excellent performance of the series superplasticizer.
3.2 Reference cement
In line with the GB specified in 8076 cement.
3.3 Reference concrete
In accordance with the provisions of GB 8076 test conditions for preparation of the concrete admixture.
3.4 Test concrete tested concrete
According to the standard test condition regulations prepared mixed polycarboxylic high performance concrete.
4 Classification and marking
4.1 Classification
4.1.1 product type, see table 1.
Table 1 polycarboxylic high performance type
4.1.2 according to the product shape classification, see table 2.
Table 2 polycarboxylic high performance morphology
4.1.3 press product classification, see table 3.
Table 3 polycarboxylic high performance level
4.2 mark
4.2.1 labeling method
4.2.2 labeled examples
PCA - FHN - Y - II said a retarding liquid type qualified polycarboxylic high performance.
5 requirements
5.1 polycarboxylic high performance chemical properties
Polycarboxylic high performance chemical properties shall conform to the requirements in table 4.
5.2 mixed polycarboxylic high performance concrete performance
Mixed polycarboxylic high performance performance shall be in accordance with the requirements in table 5.
5.3 polycarboxylic high performance uniformity
Polycarboxylic high performance uniformity should be consistent with the requirements in table 6.
Table 4 polycarboxylic high performance chemical performance index.
Table 5 mixed polycarboxylic high performance concrete performance
Table 6 polycarboxylic high performance uniformity index
6 test methods
6.1 polycarboxylic high performance chemical properties
6.1.1 formaldehyde content
Polycarboxylic high performance in a sample of formaldehyde content shall be as specified in the GB18582 method for the determination of. According to the % solid content of formaldehyde content by the following formula:
Type of:
F -- by % solid content of formaldehyde content ( % );
F -- polycarboxylic high performance in a sample of formaldehyde content ( % );
XS -- polycarboxylic high performance solid content ( % ).
6.1.2 chlorine ion content
Polycarboxylic high performance in a sample of chlorine ion content in accordance with the provisions of GB / T 8077 test method. According to the % solid content of the chlorine ion content are calculated by the following formula:
Type of:
C -- by % solid content of the chlorine ion content ( % );
C -- polycarboxylic high performance in a sample of chlorine ion content ( % );
XS -- polycarboxylic high performance solid content ( % ).
6.1.3 total alkali content
Polycarboxylic high performance in a sample of total alkali content should be in accordance with the provisions of the GB / T 8077 test method. According to the % solid content of total alkali content calculated by the following formula:
Type of:
K -- by % solid content of total alkali content ( % );
K -- polycarboxylic high performance in a sample of the total alkali content ( % );
XS -- polycarboxylic high performance solid content ( % ).
6.2 mixed polycarboxylic high performance concrete performance
6.2.1 raw material
6.2.1.1 cement
Should use the GB 8076 standard cement, arbitration shall be used for reference cement.
6.2.1.2 sand
Should be in line with the requirements of JGJ 52 fineness modulus is 2.5 ~ 2.8 sand.
6.2.1.3 stone
Should be in line with the requirements of JGJ 53 two grading macadam,
Particle size ( sieve ) 5mm ~ 20mm,
The 5mm ~ 10mm accounted for 40%,
10mm ~
20mm accounted for 60%.
6.2.1.4 water
Should be in line with the requirements of JGJ 63 water.
6.2.1.5 admixture
Requires the detection of polycarboxylic high performance.
6.2.2 mix
Mix design of concrete shall be in accordance with the following provisions:
In addition to 6.2.2.1 concrete mixture 1H slump retain properties other than performance test,
Reference concrete and test concrete
The mix should be in accordance with the provisions of GB 8076 design, and shall comply with the following provisions:
Cement dosage: 330kg / m3;
- sand rate: 38% - 40%;
- polycarboxylic high performance admixture: using polycarboxylic high performance production factory recommended dosage;
A water: should make reference concrete and the concrete slump constant is 80 mm + 10mm.
6.2.2.2 in concrete mixture 1H slump retain value determination, the proportioning of concrete shall be in accordance with the provisions of JC 473 for
Design, and shall comply with the following provisions:
Cement dosage: 390kg / m;
- sand rate: 44%;
- polycarboxylic high performance admixture: using polycarboxylic high performance production factory recommended dosage;
A water: should make the concrete slump of 210 mm + 10mm.
6.2.3 concrete mixing
Should be used in concrete mixer, mixing amount shall not be less than the rated capacity of the 25% Mixer Blender, not greater than the rated capacity
75%. Mixing concrete, sand, stone, cement to join mixer dry mixing 10s, after adding the polycarboxylic high performance and mixing
Water, continue stirring 120s; stirring ended, discharging in the iron will mix with artificial turning 2 ~ 3 times before the test.
Concrete raw materials and test temperature shall be maintained at 20 degrees + / - 3 DEG C; shrinkage test should be in accordance with GBJ 82 test
Inspection of the environment temperature.
6.2.4 specimen
Concrete production and maintenance should be in accordance with the provisions of the GB / T 50081 methods, but the concrete pre-curing temperature at 20 DEG C.
2 DEG c..
6.2.5 mixed polycarboxylic high performance concrete mixture
6.2.5.1 water reducing rate
The water reducing rate should be in accordance with the provisions of GB 8076 test method.
6.2.5.2 bleeding ratio
Bleeding rate should be in accordance with the provisions of GB 8076 test method.
6.2.5.3 content
Content should be in accordance with the provisions of the GB / T 50080 test method. Concrete mixture should adopt the manual inserting tamping tamping.
6.2.5.4 1H slump retention value
Concrete mixture 1H slump retain value should be in accordance with the provisions of JC 473 test method.
6.2.5.5 difference in setting time
Setting time difference should be in accordance with the provisions of GB 8076 test method.
6.2.6 mixed polycarboxylic high performance concrete
6.2.6.1 compressive strength ratio
The compressive strength ratio should be in accordance with the provisions of GB 8076 test method.
6.2.6.2 28d shrinkage ratio
28d shrinkage ratio should be in accordance with the provisions of GB 8076 test method.
6.2.7 polycarboxylic high performance of steel bar corrosion
On the corrosion of steel bar in GB 8076 action should be in accordance with the test method.
6.2.8 polycarboxylic high performance uniformity
6.2.8.1 solid content
Solid content should be in accordance with the provisions of the GB / T 8077 test method.
6.2.8.2 moisture content
Moisture content should be in accordance with JC 475 - 2004 appendix A provided a method for determination of.
6.2.8.3 fineness
Fineness should be in accordance with GB / T 8077 regulation test method.
6.2.8.4 pH value
The pH value should be in accordance with the provisions of GB / T 8077 test method.
6.2.8.5 density
Density should be in accordance with the provisions of GB / T 8077 test method.
6.2.8.6 fluidity of cement paste
Fluidity of cement paste should be in accordance with the provisions of the GB / T 8077 test method.
6.2.8.7 mortar water reducing rate
Mortar water reducing rate should be in accordance with the provisions of GB / T 8077 test method.
7 test classification
7.1 inspection rules
7.1.1 factory inspection
Inspection items include the water reducing rate and table 6 specifies the homogeneity test project.
7.1.2 type examination
Type test items included in Table 4, table 5 and table 6 for all the items in the. One of the following conditions, should carry out type testing:
A ) new product or old products to the factory production trial shape identification;
B ) formally production, such as materials, technology has greatly changed, may affect product performance;
C ) long-term products production, production resumed;
D ) during normal production, at least a year to conduct a test;
E ) national quality supervision mechanism proposed for type inspection requirements;
F ) the factory inspection results and the last type test result have bigger difference when.
The 7.2 batch, sampling and sample
7.2.1 batch
The same kind of polycarboxylic high performance, each for a number of 100t, 100t as well as a number of deficiencies.
7.2.2 sampling and sample
Sampling should be representative.
Each batch sampling of quantities of not less than 0.2T cement needs of polycarboxylate high performance water dose.
Each batch to obtain specimens shall be fully and uniformly mixed, divided into two equal parts. A method and program according to this standard test, and another to
Sealing of six months, to have disputes submitted to the national designated inspection agencies to conduct re-inspection or arbitration. Such as the production and the use of units to, complex
Check or arbitration may also be used on site sampling.
The 7.3 decision rules
Product inspection, product performance fully in line with the inspection and test patterns corresponding to the prescribed requirements, it is determined that the number of polycarboxylic high performance for the corresponding level of the product; if you do not meet the above requirements, is sentenced to the number of polycarboxylic high performance for unqualified.
7.4 retest
The reinspection to seal the sample. If you use the units require on-site sampling, should advance in the supply of provisions in the contract, and in the production and use of personnel in the presence of the on the spot to take representative samples. The re-inspection according to type inspection project.
8 factory, packaging, storage
8.1 pack
Solid products should adopt a plastic bags lined bags or paper bags;
Liquid products should be sealed packaging. Unit package product quantity and rules compared to the number of shortage should not exceed 2%.
All packaging containers shall be marked location specify the following: product name, mark, model, net weight, name of factory. Production date and serial number should be in the product certificate described on.
8.2 factory
Production plant with the first batch of goods to provide the factory inspection report, manual, certificate. If any of the following circumstances, shall not be manufactured: substandard goods, technical documents ( specifications, certificate, inspection reports ), the packaging does not match, quality is insufficient, product deterioration and shelf-life than.
The 8.3 store
Polycarboxylic high performance should be stored in special warehouse or a fixed place for safekeeping, for easy identification, convenient inspection and delivery for the principle.