External or back attached waterstop refers to the externally attached middle nonporous waterstop. The back attached waterstop is mainly applicable to the outside of the concrete structure floor or wall plate (concrete facing surface). In practical application, it is mainly used in the initiation joint, complete contraction joint, incomplete contraction joint and other parts of the structure. It has the characteristics of tight anchoring with concrete, water stop sealing, elastic tensile deformation, etc. The waterstop is made of elastic materials, mixed with various auxiliary additives, and mixed and vulcanized. It can be divided into Natural rubber Waterstop Neoprene Waterstop, nitrile rubber waterstop, ternary EPDM Waterstop, etc. Our products are rubber waterstop, water swelling waterstop, and two-component polysulfide building waterproof sealant widely used in projects! Rubber waterstop is also called rubber waterstop, rubber grout stop and water stop rubber Rubber waterstop and waterstop rubber are made of natural rubber and various synthetic rubber As the main raw material, mixed with various auxiliary The rubber waterstop takes advantage of the high elasticity and compression deformability of rubber to produce elastic deformation under various loads, thus effectively fastening and sealing, preventing water leakage, seepage and shock absorption and buffering of building structures. In the architectural design of general large projects, construction joints, settlement joints and deformation joints need to be reserved due to the failure of continuous pouring, or the deformation of the foundation, or the thermal expansion and contraction of concrete components caused by temperature changes, and rubber waterstops must be installed at these joints to prevent water leakage. The waterstop (rubber waterstop) is mainly used for the foundation works integrated with the concrete structure in the construction joints and deformation joints when the concrete is poured in situ, such as the construction and installation of waterstops for underground facilities, tunnel culverts, water conveyance aqueducts, water retaining dams, liquid storage structures, etc, There are many sharp stones and sharp steel bar heads in the concrete. Since the tear strength of plastic and rubber is 3-5 times lower than the tensile strength, once the waterstop is punctured or torn, the crack will expand without much external force. Therefore, during the positioning of waterstop and concrete pouring and tamping, attention should be paid to the positioning method and pouring and tamping pressure to prevent the waterstop from being punctured, Therefore, in the process of waterstop positioning and concrete pouring and tamping, attention should be paid to the positioning method and pouring and tamping pressure to prevent the waterstop from being punctured and affecting the waterstop effect. The specific precautions are as follows: 1 The waterstop should not be exposed to the sun for a long time in the open air to prevent rain and contact with highly polluting chemicals. 2 During transportation and construction, prevent machinery and reinforcement from damaging the waterstop. 3 During construction, the waterstop must be reliably fixed to avoid displacement during concrete pouring and ensure the correct position of the waterstop in the concrete. 4. The methods for fixing the waterstop are: using additional reinforcement; Fixing with special fixtures; Lead wire and formwork fixation, if perforation is required, can only be selected in the edge installation area of the waterstop, and other parts shall not be damaged. 5 When ordering, the user should calculate the product length according to the engineering structure and design drawings. The profiled structure should be described in the drawings. The waterstop should be connected as a whole in the factory as far as possible. If it is necessary to connect on site, the electric heating plate can be used for vulcanization bonding or cold bonding (rubber waterstop) or welding (plastic waterstop). If the user has difficulty in connecting, Our company can send technicians for on-site guidance
