GB/T 5486.4-2001 Test methods for inorganic rigid thermal insulation products - Uniform temperature burning performance

This standard specifies the test methods for uniform temperature burning linear shrinkage, residual compressive strength and mass loss rate of inorganic rigid thermal insulation products. This standard does not apply to inorganic rigid thermal insulation products made with asphalt as a curing agent. GB/T 5486.4-2001 Test methods for uniform temperature burning performance of inorganic rigid thermal insulation products GB/T5486.4-2001 Standard download decompression password: www.bzxz.net

K:S 91. 120. 10
National Standard of the People's Republic of China
GB/T 5486. 1 5486.4—2001bZxz.net
Test methods for inorganic rigid thermal insulation products
Test meihods of inorganic rigid thermal insulation2001- 04 - 29 Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China from October 2001 to January 2001, GE/T548G.2--2001 was implemented. The test method for inorganic thermal insulation products is formulated on the basis of R486.1~6.3-1 test method for thermal insulation products, and is a comprehensive test method for inorganic rigid insulation products such as silicate thermal insulation products, expandable vermiculite products, and glass products. When formulating, the original standard must be included in the test method. Inorganic standard thermal insulation products test methods include the following parts: Part 1 (GB/5485.12: Inorganic rigid thermal insulation products test methods - Quality assurance: Part 2: GB/T5485.2 Inorganic rigid thermal insulation products test methods - Mechanical properties - Part 3 <GB/54S5.3): Inorganic rigid thermal insulation products test methods - Water content and water absorption: Part 4 (GB/T51R5.): Inorganic rigid thermal insulation products test methods - Temperature ignition performance: This standard is Part 1.
This standard is formulated on the basis of the Appendix of the G-Silicon calcium thermal insulation products temperature ignition test method, technical content 1, non-equivalent to the use of A5MC355-187:19 prefabricated high potential material average heat absorption rate high test method 3. This standard is proposed by the National Building Materials Industry Products, and this standard is under the jurisdiction of the National Thermal Insulation Materials Standardization Technical Committee (CSBTS1C191). The responsible person for this standard is: Pre-insulation Materials Research and Design System, and the drafting units of this standard are: Duanjiang Aske New Technology Co., Ltd., Shanghai Qiangwei Baoying Materials Co., Ltd., Gongmei Baoneng Economic Materials Co., Ltd., Jiangsu Jianghu Zhonggang Insulation Village Materials Co., Ltd., Runnan Province Xinyang Changqiao District Zhongshan Insulation Building Materials Factory, Shangyou Science and Technology Institute Ten Energy Manufacturing Co., Ltd., Nanjiao Xinchu City Pingning District Pingyan Perlite", and the main drafters of this standard are Zhang Liqiu, Shangjun Xue, and Ma Ting. This standard was commissioned by Henan Building Sealing Materials Research and Design Institute. 16
1 Scope
National Standard of the People's Republic of China
Test methods for inorganic rigid thermal insulation products
Uniform temperature burning performance
Test method for inorganic rigid thermal insulation productsProperlies after beating GR/I 5486.4--2001
This standard specifies the test method for the actual temperature shrinkage rate and the strength improvement rate of inorganic rigid thermal insulation products. This standard is not applicable to inorganic rigid thermal insulation products made with tin as adhesive. 2 References
The following standards contain the texts contained in the standard, and the provisions of this standard are not included in the references in this standard. The versions shown in the table are not valid. The stored standards will not be subscribed, and the parties using the production standards shall use the latest version of the following standards when possible.GH/T5486.52001 Test book for inorganic rigid thermal insulation products Appearance quality 3 Collection equipment
3.1 Temperature protection; the maximum working temperature should not be less than 1000 and the protection temperature should be controlled within ±1% of the test temperature 3.2 Electric heating blast drying oven
3.3 Vernier caliper graduation value.aml
3.4 ​​Lifting ruler: the value is 1 mr,
3.5 Balance: the range meets the requirements of the test scale, and the graduation value is less than 2/10,000 of the displacement value (test piece quantity) 3.6 Small pressure testing machine: large pressure, small indication 20kN, relative indication error less than 1%, the test should have the ability to indicate the pressure deformation. 3.7 Dryer,
3.84 times the magnifying glass.
4 Test piece
Randomly take three samples and make them into a test piece with a length of 12CⅡm and a width of 12CⅡm. The thickness of the test piece is 123Tm. The test piece should be as thick as possible, but the thickness should not be less than 3am. For products without the above test properties, they can be replaced by flat products made by domestic technology. The test piece should be checked by a microscope. No cracks should appear. 5 Test steps
5.1 Bake the test piece in an electric hot air drying oven according to the provisions of G/T=426.3-3.2 to constant mass, and then move it to a T container to cool to a constant temperature.
5.2 Weigh the mass of the test piece G after flattening and retain 5 valid values. 5.3 On the surface of a single test piece, two half lines with a length of 193 m and equal distance from each other are drawn for the test piece with a monthly diametral not greater than 0.2 m in both the length and width directions. Two more lines are drawn along the center end of the length and width directions, which are parallel to the two lines (see Figure 1). Or connect the pen to the wire and draw a line, and then set the silver needle at the customer point, and adjust the intersection or the height between the steel meter and the standard, accurately 01 product. If the steel needle shows corrosion and swelling under the test, it must be used. rs01
Figure 1 Temperature edge collection and measurement point layout diagram
5.4 Place the tested test piece horizontally in the furnace. The bottom of the test piece should be of good quality. The distance between the test piece and the test piece, and the test piece and the furnace surface (including the furnace bottom surface) should not be less than 10, and a high heat barrier should be set to avoid direct radiation of the heat element to the test piece. The furnace temperature is increased from room temperature to the required temperature at a temperature rate of 100C/h~150/h and kept at this temperature for 16 h:.
5.5 After the constant temperature is over, the temperature of the specimens shall be reduced to 376K-5K (105C ± 5℃) for at least Ah. Then each specimen shall be moved into the dryer and cooled to room temperature.
5.6 Check the test conditions and record them. 5.7 Measure the distance between the test points in the length and width direction of the specimen after calcination, 1m. 5.8 The centroid of the special specimen shall be retained to 5 significant figures. 5.9 The residual strength after calcination shall be carried out according to G3/5486.2. The results shall be calculated and evaluated.
6.1 The linear shrinkage rate shall be calculated according to formula <1) and shall be accurate to 0.1%. In the formula, the linear shrinkage rate is %, %!
The distance between the two measuring points before the test is mm--. The distance between the two measuring points after the test is mm. -×100
The linear shrinkage of each specimen is the arithmetic average of the linear shrinkage of the length and width. The shrinkage rate of the product is the arithmetic average of the three shrinkage rates, accurate to 0.1%.
6-2 The loss rate of each test piece is calculated by formula (2) with an accuracy of 0.1% Gs
where: 2---the measured loss,
the mass of the specimen before the test, kg:
the dry mass of the specimen after the test, kg
the product and the general ignition mass loss are the arithmetic average of the three pieces' mass loss rates, accurate to 0.1%. 6.3 The residual compressive strength of the product is the arithmetic half-mean of the residual compressive strength of the three pieces. 6.4 Test piece material and subject information.
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