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 When tiles fall off, most people blame the tile adhesive or even the tiles themselves. But construction experience shows: 90% of tile failures are caused by the mortar substrate! Think of tiling as building a house: Tiles = exterior walls and decoration Tile adhesive / cement mortar = steel reinforcement (connection) Mortar substrate = the foundation If the foundation is weak, no matter how good the tiles or adhesive are, the wall won’t hold. Tiles and adhesive are just the “external factors,” while the substrate is the decisive “internal factor.” Common Substrate Problems Weak strength, sanding, or powdering → Adhesive sticks to loose sand, leading to complete tile detachment. Hollowing or cracking → The true culprit behind tile hollowing and falling. Poor flatness or alignment → Excess mortar for leveling shrinks unevenly, causing hollow spots. Dirty substrate → Dust, oil, or release agents create a barrier layer, reducing bond strength. Imprope...

  1. Overview Cement-based self-leveling is a dry-mix material made of special cement, fine aggregates, and polymer additives. When mixed with water, it produces a highly fluid slurry that levels itself by gravity, forming a smooth, strong, and even surface. It can serve as a substrate for wood flooring, tiles, carpets, or be used directly as a wear-resistant surface. 2. Key Features & Benefits High Fluidity : Self-leveling without heavy manual troweling. Fast Setting : Walkable in 4–6 hours, reducing project time. Excellent Flatness : ≤2mm deviation within 2m straightedge. High Strength : Superior compressive and flexural strength compared to traditional mortar. Thickness Range : Typically 2–10mm, adjustable by application. Seamless Finish : No joints, neat appearance, easy to clean. 3. Substrate Preparation Substrate preparation is the key to final performance. Requirements : Strength ≥20MPa, free of hollowing, dusting, or peeling. Moisture ≤6%;...

 In construction, mortar is one of the most commonly used materials. A frequent question is: What’s the difference between anti-crack mortar and cement mortar? Which one is stronger, and how do you choose for different applications? Let’s break it down from strength, performance, and application perspectives. 1. Strength Comparison (1) Compressive Strength Cement Mortar : Excellent compressive strength, usually 30–50 MPa , making it suitable for load-bearing and wear-resistant structural parts such as foundations, beams, and masonry. Anti-Crack Mortar : Lower compressive strength, typically 10–20 MPa . It is designed not for load-bearing but mainly for crack prevention on surfaces. (2) Crack Resistance & Flexibility Anti-Crack Mortar : Enhanced with polymers and fibers, it has higher tensile strength and flexibility, effectively resisting shrinkage and temperature-related cracking. Cement Mortar : Strong but brittle, prone to cracking due to shrinkage or tempe...

 In construction, the choice of mortar directly affects both structural durability and surface stability. Two of the most common options— anti-crack mortar and cement mortar —serve different purposes. A frequent question from contractors is: Which one is stronger, and how should I choose between them? 1. Strength Characteristics Compressive Strength Cement mortar : With high-grade mixes, compressive strength can reach 30–50 MPa . It performs exceptionally well in load-bearing and wear-resistant applications, such as foundations, beams, columns, and masonry. Anti-crack mortar : Typically offers a lower compressive strength of 10–20 MPa , making it more suitable for non-structural surfaces where protection and crack resistance are the priority. Crack Resistance & Flexibility Anti-crack mortar : Modified with polymers and fibers, it provides excellent tensile strength and flexibility, effectively preventing cracks caused by shrinkage and temperature changes. Ceme...