The development of waterproof materials can be described as a wide variety of today. Flexible waterproof materials are classified into two categories according to the form of their attached waterproof base layer, namely: waterproofing of coils and waterproofing of coatings. However, the waterproof material is transformed into a waterproof layer, and a key link in the middle is construction - that is, secondary processing of the waterproof material.
What are the characteristics of coil waterproofing and coating waterproofing?
The following questions about how to choose waterproof materials and waterproof construction are as follows:
The earliest traditional waterproofing membrane should be regarded as paper linoleum. When using linoleum as waterproof layer, it must be bonded with construction asphalt. The upper sandstone: the general practice is three oil two felt or four oil three felt, because of the above labor intensity The construction technology is difficult to support. When the asphalt is prepared, a large amount of exhaust gas is seriously polluted to the environment. It is impossible to construct in places where fire cannot be used. Fire and scald accidents are easy to occur, and secondary maintenance of the roof is difficult. Due to the above various reasons, the linoleum waterproof layer is basically basic. Be eliminated.
The new generation of waterproof materials is light in weight, convenient in construction, non-polluting to the environment, durable, and beautiful in color direction. Therefore, there are paper-proof linoleum-rubber coil-coated laminating modified asphalt coils. ——All kinds of synthetic polymer waterproofing membranes; coating waterproofing materials are developed from modified emulsified asphalt-plastic ointment-polyurethane waterproof coating to environmentally friendly synthetic polymer color waterproof coating.
The development of waterproof materials can be described as a wide variety of products. In short, the advent and application of various waterproof materials have their own advantages, or the materials are easy to obtain, or the bottom price is earned, or the price is not durable but durable, or the use is not waterproof. Different; the selection of waterproof materials, in addition to cost, climate, geography, building functions, environmental protection, the construction of the building is an important factor; if it is suitable for waterproofing coils, it is not suitable for waterproofing with paint, suitable for coatings. It is not suitable for coils; for example, it is not suitable for waterproofing of coils: wet base, poor drainage or water-filled parts, uneven base and many protruding bases, water-repellent water, water-repellent, Areas with large typhoons and long-term typhoons; such as the base layer is not suitable for waterproofing of paints: waterproofing of the bottom of wooden tiling houses.
The disadvantages of the waterproofing of the coiled material are as follows: in the waterproof construction, when the shape of the waterproof base layer is used for the body-cutting, the multi-layer splicing is required for the complex base layer, and the bonding of the waterproof coils to each other is more difficult. Large, because the multiple pieces of splicing affect the aesthetics of the waterproof layer; then the completely absolute sealing will become the main problem, the biggest hidden danger, the most opportunity is the overlapping part of the coil; then the high-grade waterproofing membrane has decades Durable durability, but the binders that are currently matched in China are often lost in advance due to factors such as the environment and the bonding material itself. The resulting waterproof failure will be self-evident; The protection of the waterproof membrane after construction and the maintenance after water leakage are also difficult problems. The exposed waterproof layer is important for the prevention of external mechanical damage. The bonding of the waterproof membrane to the base layer is full, paved, and strip. Shop, empty shop, between the coil and the base layer will be the water layer, no matter where the penetration of any part is broken, degumming, leaking glue (even if there is only one place), the waterproof function of the entire connected layer will be For those waterproof layers with concrete protective layer, although external mechanical piercing is no longer possible, it is not suitable for further protection layer along the ditch and other parts; and then the possibility of long-term water accumulation along the ditch and other parts due to sewer blockage and the like. It is relatively large, and the watertightness of the waterproof layer must not be flawed; therefore, there is less chance of successful waterproofing of the coil along the ditch; the sealing along the ditch is difficult due to the complicated shape, the water hole, the water outlet, etc. Waterproofing has also become a technical key; and due to the accumulation of living and production wastewater along the ditch, the harmful components accelerate the decomposition, aging and even failure of the coil bonding material.
In summary, the drawback of coil waterproofing is not equal to its incurable disease. We propose and face it to find a solution to the problem; such as obtaining high quality and durable adhesive to solve the bond strength and stickiness. The aging problem material, the construction of the patient carefully to overcome the problem of adhesive sealing, the use of multi-channel fortification and composite coating with the waterproof layer to solve the fear of wearing the coil and the reliability of the waterproof layer; then weigh the pros and cons It is really not suitable for the use of coils when it should be boldly changed and waterproof.
Waterproof coating, waterproof coating Because of its convenient construction, many manufacturers, easy to take materials, some waterproof coating production equipment is relatively simple, so it is also a waterproof material developed early, and has been used continuously.
Because it can form a seamless joint-free sealing layer, it can completely block the water and completely separate the air. It can completely isolate the rainwater, moisture and all harmful gases from the waterproof base. The waterproof construction technology is easy to hold. The construction equipment is simple, and can be made into a continuous overall waterproof layer without being restricted by any complicated shape of the base layer. Most waterproof coatings also have a reinforcing effect on the building by infiltrating the closed pores of the base layer, and some waterproof coatings can also be used as coils. The adhesive plays the dual role of waterproof bonding; however, the waterproof coating achieves the above effects, which must be ensured by the quality of the material and the thickness of the waterproof layer; the waterproofing of the coating also has the advantage that it can be based on the requirements and structure of different parts of the base layer. The stress is carried out in different thicknesses. In other words, the thick place is thick, and the thick place is not thin, so that the economical use of the waterproof material is achieved. The surface of the coating waterproof layer is smooth and the surface is easy to clean. Some high-strength coating waterproof layer (such as cement-based JS waterproof layer) can be directly applied to the roof and the ground; the coating waterproof layer has 100% bonding surface with the base layer (crack, Most nodes are not afraid of sharp objects, and some have self-healing function. The water leakage of the coating waterproof layer during the serviceable period is mostly the extension of the base layer beyond the waterproof coating. The amplitude, the cause of water leakage and the part that forms the water leak are easy to find. Its warranty is very convenient, as long as a small amount of waterproof material repairs cracks and damaged parts; it is not necessary to redo the waterproof layer. High-quality waterproof coatings can be successfully waterproofed on the back surface, which is unmatched by the waterproofing of the coil. Part of the waterproof coating can be applied on the wet base layer and form a waterproof layer, which is not desirable for basements, water bottles, toilets, etc., and other waterproof bases that are tight and impossible to dry, because any coils are Must be attached to a dry substrate.
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