How to choose a waterproofing agent? What are the construction methods of waterproofing agent?
How to choose a waterproofing agent
1. Start from practicality. As long as the domestic brand of waterproofing agent can provide an inspection report on the waterproofing effect that has been identified and certified by the relevant authoritative department (preferably the National Building Materials Administration), and the inspection effect is not lower than or slightly lower than that of similar foreign products, it is best to choose the domestic brand. Domestic brands have price advantages and are easy to purchase. It is easier to negotiate when disputes over product quality arise. The technical support and after-sales service of product providers can also be kept up with in a timely manner.
2. Consider the price. The prices of domestic waterproofing agents vary greatly. If you choose a high-priced waterproofing agent because you think that a higher price means better waterproofing, then the cost of the waterproofing agent per unit area will be too high, and the company’s profits will be relatively low. Therefore, when choosing a waterproofing agent, you should take into account both price and effectiveness.
3. Choose from the surface type of stone products. The appropriate waterproofing agent should be selected according to the type of stone surface being treated. If it is glossy marble, choose a waterproofing agent suitable for smooth marble. For sandstone stone, choose a waterproofing agent suitable for sandstone type. For matte surface stone, choose a waterproofing agent suitable for matte surface.
4. Choose from the feasibility of the operation. When choosing a waterproofing agent, it is better to occupy less space, because many factories and construction sites do not have enough space for waterproofing agent treatment. The waterproofing agent penetrates quickly and doesn’t take much time to dry. The operation method is simple and fast.
5. Think from the concept of environmental protection. There are two types of waterproofing agents sold on the market, environmentally friendly and non-environmental. When selecting a waterproofing agent, you should consider whether the selected waterproofing agent will cause harm to the environment, operators, and users. Environmentally friendly waterproofing agents do not pollute the environment and will not cause side effects to operators, let alone harm their health. Non-environmentally friendly waterproofing agents have a certain pungent smell, and some even have a particularly strong pungent smell. If swallowed during use, it can cause lung damage, and in severe cases, it can cause difficulty breathing. Excessive exposure to this waterproofing agent aerosol can cause skin allergies, dry and cracked skin, throat discomfort, difficulty breathing and dizziness. Non-environmentally friendly waterproofing agent residual liquid cannot be dumped into the sewer, otherwise it will have a certain impact on the environment.
6. Choose upgraded and new products as much as possible. The stone chemical industry is developing rapidly, and many new and better waterproofing agents are constantly being produced. If the price-performance ratio of the new product is more advantageous, try to consider the new product when choosing a waterproofing agent.
(Jiangxi New Materials Co., Ltd.)
Waterproofing agent construction method
Waterproof mortar construction: clean the base layer of sediment, debris, oil, etc.; the ratio of this waterproofing agent: water: ash: sand is controlled at: 0.03~0.05:045:1:2.5~4 (silicic acid above 32.5R grade Salt cement, medium sand, mud content less than 3%) To ensure uniform mixing, the silicone waterproofing agent should be mixed evenly with water before adding cement and sand. The waterproof layer is applied in two layers (each layer is 10mm thick). Apply 1mm of plain mortar to the bottom layer first, then apply a layer of waterproof mortar. Compact it when it is initially set, and rub it into a pockmarked surface with a wooden trowel. Apply the second layer of waterproof mortar and then compact it quickly (it must be pockmarked if decoration is required). . According to normal watering and curing, spraying cement curing agent will have better effect.
Waterproof concrete construction: The dosage of this silicone waterproofing agent solution accounts for 1~2% of the cement dosage, and is evenly mixed into the prepared concrete. The construction method is the same as that of ordinary concrete. To ensure uniform mixing, the silicone waterproofing agent should be mixed first and then cement, sand and gravel.
Leakage repair construction: When the original base layer is smooth, it needs to be pitted. After cleaning the floating ash, make a plain mortar bonding layer and apply a waterproof mortar layer. The leaking area must be plugged to stop the water. The yin and yang corners should be rounded and compacted. The stubble should be lame-shaped (the width of the stubble is 100~150mm). When joining the stubble, plain mortar should be used as the binding layer first, and then the waterproof mortar layer should be applied.
Spray anti-permeability construction: Dilute the silicone waterproofing agent with 10 times of water and spray it on the edge surface of water-absorbent inorganic building materials such as cement surfaces, bricks, tiles, limestone, ordinary paint walls, or the surface of paper, wood, fiberboard for anti-permeability Moisture-proof treatment, excellent waterproof effect. For best results, apply the second coat while the first coat is still wet. Each kilogram of this waterproofing agent can be sprayed on an area of about 20 square meters after dilution.
