Application of thermal insulation material testing machine in energy-saving thermal insulation industry

Building energy conservation is the implementation of the national economy. In 1995, the "Urban Building Energy Conservation Implementation Rules" and other documents were promulgated. Corresponding standards such as "Outer Wall Insulation System" JG158-2004 "Rubber Powder Polystyrene Particle Outer Wall Insulation System" are listed as mandatory standards, and heat preservation and energy saving are one of the main directions of the national economic cycle.

How to ensure the quality of the building's energy-saving exterior insulation system is the goal pursued by all relevant units, enterprises and individuals who are committed to promoting the development of the building energy-saving cause. However, the quality of the building energy-saving exterior insulation market is uneven, and many companies do not strictly demand themselves according to ethical standards, only pursuing benefits; causing quality problems and frequent occurrence of accidents, and what are the main factors affecting the quality of exterior insulation systems ? We feel mainly in the following aspects: an important part of sustainable development.
1. Material quality: Whether it is mortar, insulation board, grid cloth or adhesive, some companies do not take the pursuit of quality and social responsibility as the main purpose, only the pursuit of profit, resulting in cutting corners, substandard filling, counterfeit and shoddy phenomena often occur, products It is not produced according to the standard, there is no detection means, even some of the detection equipment is not fully utilized, and it fails to provide scientific and accurate data for production quality control.
Second, the construction process: the insulation system is a process, and the selection of qualified materials is the basis, but how to ensure that the construction process is strictly followed in accordance with the construction specifications and process quality control is a means to achieve system qualification. The country has issued many standards, such as: JGJ149- In 2004 "Technical Regulations for Exterior Wall Insulation Engineering", detailed requirements were made on the performance requirements, material performance requirements, design and construction of exterior wall insulation systems. Process testing should provide reference test data for system construction.
3. Personnel quality: The quality of the personnel plays a decisive role in the quality control of the production of materials and the control of the construction process. The matching of high-quality production and construction personnel is particularly important. Many companies believe that the test equipment is for inspection and for others to see. Personally know a little. The reasonable use of test equipment under the corresponding standards is the cornerstone of improving product quality, reducing costs, and improving technology. Production and construction under the guidance of strict test data is the source of power for enterprises to benefit society and create corporate brands. !
4. Acceptance Responsibility: For external insulation systems, the quality problems that often occur are:
(1) The adhesion of the special adhesive to the benzene board is insufficient, and the standard is not met, which directly leads to poor installation quality of the insulation board, unable to withstand a certain degree of deformation of the base layer, or even the system falling off;
(2) The adhesion of the special surface mortar to the benzene board is insufficient, and the standard is not met, which directly leads to the cracking of the protective layer, and then the water seepage, bulging and shedding;
(3) The insulation board has no aging process or insufficient aging degree, there is deformation or deformation due to heat, and it does not meet the standard, which directly affects the quality of the system, causing bulging, warping, cracking, and even causing the bond to fail quickly and fall off;
(4) The cutting specifications of the insulation board are unqualified and the deviation is too large, which directly affects the installation quality of the insulation layer; the thin thickness directly affects the system deformation, wind pressure resistance, tear resistance, and load resistance; the strength is too hard and the surface is dense The skin directly affects the bonding force and the stability of the bonding effect of the bonding material;
(5) The mass per unit area, breaking strength and retention rate of alkali-resistant breaking strength of the mesh cloth are unqualified, so it does not play a good role in strengthening the protective layer, and it is difficult to ensure the mechanical strength and durability of the system protective layer . In severe cases, the wall will crack quickly after being subjected to temperature stress;
(6) The quality of the anchor is also very important. Because the anchoring force depends on its strength and the strength of the base structure, but if the specifications, type and strength of the anchor are not good, it is difficult to anchor the anchor during the construction process, which itself cannot achieve the effect of auxiliary reinforcement. It's like nothing.
Based on the importance of the above quality issues, the acceptance must do the following:
(1) The material manufacturer shall issue a systematic type test report;
(2) The manufacturer strengthens factory inspection and control, and each batch of products issues a certificate of conformity;
(3) Re-inspect the relevant performance by random sampling;
(4) Strictly track construction quality and provide data to judge the quality of finished products.
Conclusion: The above are the main factors affecting the quality of China's thermal insulation system, and in this process there will be many unexpected factors affecting the quality of the project. Jinan Hengruijin Testing Machine Co., Ltd. is a professional manufacturer of various testing machines and experimental instruments. We will provide high-quality products to provide better solutions for testing and research in this industry, and gradually improve the testing of insulation materials and construction processes to ensure that the quality and service life of insulation materials and projects meet the requirements, and make the greatest efforts for the national energy saving and emission reduction goals.

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