The hottest spot check of three batches of buildin

Guangzhou Municipal Bureau of quality supervision spot checked three batches of building waterproof coiled material products without involving unqualified samples

Guangzhou Municipal Bureau of quality supervision spot checked three batches of building waterproof coiled material products without involving unqualified samples

if there are still problems on December 21, 2015

[China paint information] on December 18, 2015, Guangzhou Municipal Bureau of quality and Technical Supervision announced the results of quality supervision and spot check of Guangzhou building waterproof coiled material products in 2015 at its official, A total of 3 batches of products produced by 3 enterprises were checked, and all of them met the standard requirements after inspection

this supervision and random inspection is based on GB 12952-2003 polyvinyl chloride waterproof coiled material, GB 12953-2003 chlorinated polyethylene waterproof coiled material, GB elastomer modified asphalt waterproof coiled material, GB plastic modified asphalt waterproof coiled material, GB self-adhesive polymer modified asphalt waterproof coiled material and other standards, for impermeable Jinan assay spring support and hanger testing machine, heat resistance, tension, elongation at maximum tension, low temperature flexibility, flexibility Elongation at break, tensile strength, tensile force, heat treatment size, and then according to the elastic deformation of the spring, try to find out the friction force change rate, low-temperature bending, perforation resistance, heat aging treatment, tensile strength at break, elongation at break and other items for inspection

general knowledge of product purchase and use

waterproof coiled material is mainly used in building walls, roofs, tunnels, highways, and Design Fair landfill sites. It is a flexible building material product that can be rolled into a roll to resist external rainwater and groundwater leakage. As a leak free connection between the project foundation and the building, it is the first barrier for the waterproof of the whole project and plays a vital role in the whole project. The products mainly include asphalt waterproof coiled materials and polymer waterproof coiled materials

according to its main waterproof components, it can be divided into three categories: asphalt waterproof materials, polymer modified waterproof coiled materials and synthetic polymer waterproof coiled materials (SBC120 polyethylene polypropylene fiber composite coiled materials). There are PVC, EVA, PE, ECB and other waterproof coiled materials. Asphalt waterproof coiled material is a curlable sheet waterproof material made by coating asphalt on the base tire (such as base paper and fiber fabric), and then spreading powdery or sheet isolation materials on the surface

list of qualified products and enterprises in the quality supervision and spot check of building waterproof coiled materials in Guangzhou in 2015