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  1. Why Mortar Strength Matters So Much In masonry construction, mortar is not just the “gray paste” between bricks — it is the key to the wall’s stability, durability, and waterproofing . If the strength grade is chosen incorrectly: Too weak → The wall becomes loose, cracks, or delaminates easily. Too strong → The plaster layer becomes harder than the substrate, leading to hollowing and peeling . 👉 Correct strength selection prevents rework, improves structural integrity, and extends the building’s lifespan. 2. Mortar Strength Grade System Explained Mortar strength is represented by “M” or “Mb” , followed by a number that indicates its 28-day compressive strength (MPa) . For example: M5 = 5 MPa compressive strength . Currently, there are two main grading systems in China: 1️⃣ Traditional Masonry Mortar (site-mixed) Grades: M2.5, M5, M7.5, M10, M15, M20 👉 Used mostly in on-site mixed mortars for conventional projects. 2️⃣ Premixed Mortar (dry-mix or wet-mi...

Tile installation seems simple, but it’s a craft where details make the difference . Most issues like tile falling, hollowing, or poor bonding are not caused by the adhesive itself — but by improper construction steps . For strong, level, and durable results, you must master these three essentials: 👉 Proper surface preparation, accurate mixing, and professional thin-bed application. 1. Surface Preparation — The Foundation of Success ✅ Materials and Tools Tile Adhesive Selection (Based on Beijing Standard DB11/T 344-2024): Application Area Recommended Type Interior Wall (Ceramic Tile)     C1 Type Vibration Areas (Elevator Shaft, etc.)     C2TS1 Type Underfloor Heating, Balcony, Outdoor     C2TES1 Type (Enhanced) Low-Absorption Tiles (<0.5%) like Porcelain or Sintered Slabs     C2 Enhanced Type                 Main Tools: Electric mixer, mixing bucket, notched trowel (8–10mm ...

  In construction and interior finishing, flatness is not just about aesthetics — it’s the foundation for smooth installation of floors, tiles, coatings, and custom furniture. A perfectly leveled surface ensures durability, visual harmony, and professional results. Method 1: Cement-Sand Screed Leveling — The Cost-Effective Classic Principle: A traditional method that mixes cement, sand, and water to create a leveling layer by manual spreading and troweling. Flatness: Tolerance ≤4mm per 2 meters, or ≤3mm with skilled application. Advantages: ✅ Low cost, high strength, widely applicable. Disadvantages: ❌ Thick layer (25–35mm), time-consuming, relies on manual skill. Ideal For: Tile flooring areas and general base leveling. Method 2: Self-Leveling Cement — Achieve “Mirror-Like” Precision Principle: A high-tech mixture of modified cement and polymers that flows and levels itself naturally. Flatness: ≤2mm deviation per 2 meters — extremely high precision. Advantages: ...