Have you ever noticed white, powdery substances appearing along the seams of natural stone? This is known as "Baihua," a common issue in masonry and stone installations. Baihua typically occurs when water interacts with alkaline compounds present in cement mortar, especially in wet installation methods. These compounds, like calcium hydroxide, dissolve in water and seep into the stone or the joints. When the water evaporates, it leaves behind calcium carbonate or calcium sulfate, which crystallizes on the surface, forming the unsightly white deposits we call Baihua. Baihua is similar to water spots in that both are caused by the presence of moisture and alkaline metal ions. Water acts as the main carrier, dissolving these ions and drawing them up through the stone via capillary action. If the joints are not properly filled or sealed, the problem can worsen over time. To prevent Baihua, it's essential to control the movement of water and alkaline substances toward the stone surface. Here are effective measures to prevent Baihua: 1. Apply a protective coating to the stone before installation—typically on all sides except the back, depending on the project requirements. This helps reduce water absorption and prevents cement or groundwater from penetrating the stone, which could lead to Baihua formation. 2. Choose the right jointing material for the stone type and apply it correctly. High-quality sealants and proper application techniques can significantly reduce the chances of Baihua developing in the joints. 3. When mixing cement mortar, use a low water-to-cement ratio or add a water-reducing agent. This minimizes excess moisture, which is a key contributor to Baihua. 4. Consider adding a waterproofing agent to the mortar mix. This can help block the migration of alkaline ions, preventing them from reaching the stone surface and causing white stains. 5. Use non-contaminating aggregates and avoid materials like sea sand, which contain high levels of calcium, magnesium, and sodium. Also, avoid using mineral-rich groundwater as mixing water, as this can increase the risk of Baihua. By following these preventive steps, you can maintain the beauty and integrity of natural stone surfaces, avoiding the unsightly appearance of Baihua and ensuring long-term durability.
320W Quantum Board grow lights is a highly efficient plant growth lamp that uses advanced quantum plate technology. With a power of 320 watts, it provides enough light energy for plants to grow. Quantum plate technology can better simulate the natural spectrum and provide different wavelengths of light required by plants, thus promoting plant growth and development.
This led grow lights uses high quality LED lamp beads with long life, high brightness and low energy consumption. Its light is evenly distributed and can cover large planting areas. The lamps are also equipped with an efficient cooling system to ensure the stable operation and long-term use of the lamps.
The 320W Plant Light Quantum Board grow lights also features adjustable brightness and spectral functions. Users can adjust the brightness and spectrum of the lamps according to the needs of plant growth at different stages to promote the growth of plants to the greatest extent. The lamp also has a timing switch function, which is convenient for users to control the lighting.
In short, 320W Plant Light Quantum Board led grow lights is an efficient, adjustable plant growth lamp, suitable for indoor planting, greenhouse planting and other plant growth environment. It can provide sufficient light energy, promote the growth and development of plants, and is an ideal choice for plant growers
controller led full spectrum grow light 320W,best quantum board led grow lights,quantum board samsung lm301h 320w Shenzhen Pvison Technology Co., Ltd. , https://www.pvisunggrowlight.com