“Water-based non-curable rubber asphalt waterproof coating” product standards began to be compiled

According to the notice issued by the China Building Waterproofing Association on “Issuing the First Batch of China Building Waterproofing Association Standards Revision Plan in 2018”, China State Construction Waterproofing Association issued [2018] No. 74, the product standard “Water-based non-curing rubber asphalt waterproofingCoating” is included in the development plan. On May 8th, China Building Waterproofing Association and the standard editor-in-chief Suzhou Non-Metallic Mineral Industry Design and Research Institute Co., Ltd. jointly held the establishment of the standard formulation team and the first working meeting in Shouguang City, Shandong Province.
From the Associate Editor of Standards China Building Materials Inspection and Certification Group Suzhou Co., Ltd., Hongyuan Waterproof Technology Group Co., Ltd., as well as Shouguang Waterproof Industry Association, Weifang Institute of Technology, Jiangsu Banghui, Songzhe (Tianjin) Technology, Tianjin Kangzewei, Weifang Yu Rainbow Waterproof, Shandong Huiyuan, Weifang Jingjiu Waterproof, Honghengda Waterproof, Weifang Zhengtai Waterproof, Shandong Zhengda Waterproof, Xinbao Waterproof, Baoyuan Waterproof, Huaguang Shengao Waterproof, Shandong Jinxu Waterproof, Shandong Jinding Waterproof, Hua 30 representatives from nearly 30 units including Feng Waterproofing, Shandong Junyuan, Liaocheng Tianhui Waterproofing, Weifang Zengyuan Waterproofing, Weifang Jinyuan Waterproofing, Shouguang Tianfeng Waterproofing and other national design institutes, quality inspection, production and use units attended the meeting . The meeting was presided over by the standard editor-in-chief Shen Chunlin, a professor-level senior engineer.

The editor-in-chief of the meeting first reported the status of this standard formulation application and the necessity of standard formulation. Shang Huasheng Senior Engineer of China Building Waterproof Association introduced the group standard situation, read out the document of China Building Waterproof Association that formulated this standard, and put forward hope for standard compilation. Zheng Jiayu, the chairman of Shouguang Waterproof Industry Association, and Xu Yuan, the vice president of Hongyuan Waterproof Technology Group Co., Ltd., respectively stated that they would go all out to support the formulation of this standard and cooperate with the standard editor in doing the standard formulation work. The representatives of the conference exchanged views on the production and application of domestic products of water-based non-curable rubber asphalt waterproof coating.

The main content of the meeting was: the establishment of the “Waterborne Non-curing Rubber Asphalt Waterproof Coating” product standard drafting group, discussing the “Waterborne Non-curing Rubber Asphalt Waterproof Coating” product standard draft, the preparation of the work schedule and the division of work among the members of the preparation team.
The water-based non-curing rubber asphalt waterproof coating is a water-emulsion mixture made of emulsified asphalt, polymer modified materials, toughening agents, additives, etc. The products are divided into spraying quick-setting type and scraping type. When the moisture of the coating evaporates and dries, it will not form a film and still maintain the viscosity of the waterproof coating, and has good adhesion, which can replace cold glue for cold glue construction. The coating can seal the cracks and pores of the base layer, and can adapt to complex construction work surfaces; it does not cure after long-term contact with air, and always maintains the characteristics of viscous gum. It has strong self-healing ability, sticks when touched, and is difficult to peel off. It still has good bonding properties at 20°C. It can solve the problems of waterproof layer fracture, flexural fatigue or premature aging under high stress caused by the transmission of base cracking stress to the waterproof layer; at the same time, the viscosity of creeping materials makes it possible to seal the base layer well. The pores and cracks of the waterproof layer can adapt to the deformation and cracking of the base layer, and the waterproof layer will heal automatically after being damaged under the action of external force without water channeling, which effectively solves the problem of water channeling of the waterproof layer, and can be used in combination with waterproof membranes , So that the waterproof reliability has been greatly improved.
Therefore, formulating product standards and test methods for water-based non-curable rubber asphalt anti-fouling coatings and establishing a unified product quality platform are conducive to inspection and control of product quality, can standardize the product market, and facilitate the promotion and application of products, thereby ensuring the quality of waterproofing projects.
Participating representatives focused on discussions on the scope of coverage, product classification, technical requirements, and test methods of the revised standard. Reached the following consensus:
1. The standard name is determined as: water-based non-curing rubber asphalt waterproof coating
2. Applicable scope of the standard: This standard applies to water-based non-curing rubber asphalt waterproof coatings for non-exposed waterproofing of construction projects.
3. The technical requirements of the product were agreed upon, mainly including: gel time, drying time, solid content, bonding performance, extensibility, low temperature flexibility, heat resistance, heat aging, acid resistance, alkali resistance, salt resistance, Self-healing, stress relaxation. .
4. The test method was discussed.

The meeting finally discussed the standard preparation work plan, work plan coordination and division of labor, and task implementation.
The formulation of this standard was undertaken by Suzhou Non-Metallic Mine Industrial Design and Research Institute Co., Ltd., China Building Materials Inspection and Certification Group Suzhou Co., Ltd., Hongyuan Waterproof Technology Group Co., Ltd., and China Building Materials Inspection and Certification Group Suzhou Co., Ltd. was responsible for sample verification. , All production enterprises and application units participate in the standard drafting group and provide samples and technical data.
On the basis of the above-mentioned agreement, the meeting made the following arrangements for the standard revision work: After the meeting, the verification test samples will be collected from relevant manufacturers, and the verification test will be completed in July 2019, and the second meeting will be held in July or August 2019. Working meeting. Strive to pass the review before the end of 2019. The meeting ended the first working meeting in a lively discussion and a friendly atmosphere.
This meeting received strong support and assistance from Hongyuan Waterproof Technology Group Co., Ltd., and provided help for the smooth convening of this meeting. The preparation team and the participants here are grateful for this!